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AR19-100A: MAR-10135536-8 – North Korean Trojan: HOPLIGHT
From: "US-CERT" <US-CERT () ncas us-cert gov>
Date: Wed, 10 Apr 2019 13:45:41 -0500
Cybersecurity and Infrastructure Security Agency Logo National Cyber Awareness System: AR19-100A: MAR-10135536-8 North Korean Trojan: HOPLIGHT [ https://www.us-cert.gov/ncas/analysis-reports/AR19-100A ] 04/10/2019 09:22 AM EDT Original release date: April 10, 2019 Description Notification This report is provided "as is" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. The DHS does not endorse any commercial product or service, referenced in this bulletin or otherwise. This document is marked TLP:WHITE. Disclosure is not limited. Sources may use TLP:WHITE when information carries minimal or no foreseeable risk of misuse, in accordance with applicable rules and procedures for public release. Subject to standard copyright rules, TLP:WHITE information may be distributed without restriction. For more information on the Traffic Light Protocol, see http://www.us-cert.gov/tlp. Summary Description This Malware Analysis Report (MAR) is the result of analytic efforts between Department of Homeland Security (DHS) and the Federal Bureau of Investigation (FBI). Working with U.S. Government partners, DHS and FBI identified Trojan malware variants used by the North Korean government. This malware variant has been identified as HOPLIGHT. The U.S. Government refers to malicious cyber activity by the North Korean government as HIDDEN COBRA. For more information on HIDDEN COBRA activity, visit https://www.us-cert.gov/hiddencobra. DHS and FBI are distributing this MAR to enable network defense and reduce exposure to North Korean government malicious cyber activity. This MAR includes malware descriptions related to HIDDEN COBRA, suggested response actions and recommended mitigation techniques. Users or administrators should flag activity associated with the malware and report the activity to the Cybersecurity and Infrastructure Security Agency (CISA) or the FBI Cyber Watch (CyWatch), and give the activity the highest priority for enhanced mitigation. This report provides analysis of nine malicious executable files. Seven of these files are proxy applications that mask traffic between the malware and the remote operators. The proxies have the ability to generate fake TLS handshake sessions using valid public SSL certificates, disguising network connections with remote malicious actors. One file contains a public SSL certificate and the payload of the file appears to be encoded with a password or key. The remaining file does not contain any of the public SSL certificates, but attempts outbound connections and drops four files. The dropped files primarily contain IP addresses and SSL certificates. For a downloadable copy of IOCs, see: * MAR-10135536-8.stix [ https://www.us-cert.gov/sites/default/files/publications/MAR-10135536-8.stix.xml ] Submitted Files (9) 05feed9762bc46b47a7dc5c469add9f163c16df4ddaafe81983a628da5714461 (23E27E5482E3F55BF828DAB8855690...) 12480585e08855109c5972e85d99cda7701fe992bc1754f1a0736f1eebcb004d (868036E102DF4CE414B0E6700825B3...) 2151c1977b4555a1761c12f151969f8e853e26c396fa1a7b74ccbaf3a48f4525 (5C3898AC7670DA30CF0B22075F3E8E...) 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 (42682D4A78FE5C2EDA988185A34463...) 4c372df691fc699552f81c3d3937729f1dde2a2393f36c92ccc2bd2a033a0818 (C5DC53A540ABE95E02008A04A0D56D...) 70034b33f59c6698403293cdc28676c7daa8c49031089efa6eefce41e22dccb3 (61E3571B8D9B2E9CCFADC3DDE10FB6...) 83228075a604e955d59edc760e4c4ed16eedabfc8f6ac291cf21b4fcbcd1f70a (3021B9EF74c&BDDF59656A035F94FD...) d77fdabe17cdba62a8e728cbe6c740e2c2e541072501f77988674e07a05dfb39 (F8D26F2B8DD2AC4889597E1F2FD1F2...) ddea408e178f0412ae78ff5d5adf2439251f68cad4fd853ee466a3c74649642d (BE588CD29B9DC6F8CFC4D0AA5E5C79...) Additional Files (4) 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 (rdpproto.dll) 70902623c9cd0cccc8513850072b70732d02c266c7b7e96d2d5b2ed4f5edc289 (udbcgiut.dat) 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7 (MSDFMAPI.INI) cd5ff67ff773cc60c98c35f9e9d514b597cbd148789547ba152ba67bfc0fec8f (UDPTrcSvc.dll) IPs (15) 112.175.92.57 113.114.117.122 128.200.115.228 137.139.135.151 181.39.135.126 186.169.2.237 197.211.212.59 21.252.107.198 26.165.218.44 47.206.4.145 70.224.36.194 81.94.192.10 81.94.192.147 84.49.242.125 97.90.44.200 Findings 05feed9762bc46b47a7dc5c469add9f163c16df4ddaafe81983a628da5714461 Tags trojan Details Name 23E27E5482E3F55BF828DAB885569033 Size 242688 bytes Type PE32 executable (GUI) Intel 80386, for MS Windows MD5 23e27e5482e3f55bf828dab885569033 SHA1 139b25e1ae32a8768238935a8c878bfbe2f89ef4 SHA256 05feed9762bc46b47a7dc5c469add9f163c16df4ddaafe81983a628da5714461 SHA512 2c481ef42dfc9a7a30575293d09a6f81943e307836ec5b8a346354ab5832c15046dd4015a65201311e33f944763fc55dd44fbe390245be5be7a216026ecfb28b ssdeep 6144:YnDlYMzUvLFOL9wqk6+pqC8iooIBgajvQlm/Z0cp1:alYiXiooIKajvQeZ3 Entropy 6.537337 Antivirus ESET a variant of Win32/NukeSped.AI trojan Symantec Heur.AdvML.B Yara Rules hidden_cobra_consolidated.yara rule crypt_constants_2 { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $ = {efcdab90} $ = {558426fe} $ = {7856b4c2} condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) == 0x4550) and all of them } hidden_cobra_consolidated.yara rule lsfr_constants { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $ = {efcdab90} $ = {558426fe} $ = {7856b4c2} condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) == 0x4550) and all of them } hidden_cobra_consolidated.yara rule polarSSL_servernames { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $polarSSL = "fjiejffndxklfsdkfjsaadiepwn" $sn1 = "www.google.com" $sn2 = "www.naver.com" condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) -- 0x4550) and ($polarSSL and 1 of ($sn*)) } ssdeep Matches No matches found. PE Metadata Compile Date 2017-06-05 21:57:29-04:00 Import Hash ff390ec082b48263a3946814ea18ba46 PE Sections MD5 Name Raw Size Entropy c06924120c87e2cb79505e4ab0c2e192 header 1024 2.542817 3368eda2d5820605a055596c7c438f0f .text 197120 6.441545 ec1f06839fa9bc10ad8e183b6bf7c1b5 .rdata 27136 5.956914 1e62b7d9f7cc48162e0651f7de314c8a .data 8192 4.147893 980effd28a6c674865537f313318733a .rsrc 512 5.090362 696fd5cac6e744f336e8ab68a4708fcf .reloc 8704 5.247502 Packers/Compilers/Cryptors Microsoft Visual C++ ?.? Description This artifact is a malicious PE32 executable. When executed the malware will collect system information about the victim machine including OS Version, Volume Information, and System Time, as well as enumerate the system drives and partitions. The malware is capable of the following functions: ---Begin Malware Capability--- Read, Write, and Move Files Enumerate System Drives Create and Terminate Processes Inject into Running Processes Create, Start and Stop Services Modify Registry Settings Connect to a Remote Host Upload and Download Files ---End Malware Capability--- The malware is capable of opening and binding to a socket. The malware uses a public SSL certificate for secure communication. This certificate is from www.naver.com. Naver.com is the largest search engine in Korea and provides a variety of web services to clients around the world. ---Begin SSL Certificate Header--- 1 0 UNL10U PolarSSL10UPolarSSL Test CA0 110212144407Z 2102121144407Z0<1 0 UNL10U PolarSSL10UPolarSSL Client 200 ---End SSL Certificate Header--- When executed, the malware will attempt a TLS Handshake with one of four hardcoded IP addresses embedded in the malware. These IP addresses are referenced in 'udbcgiut.dat' below. The malware also contains an embedded Zlib compression library that appears to further obfuscate the communications payload. The following notable strings have been linked to the use of the SSL certificates and can be used to identify the malware: ---Begin Notable Strings--- fjiejffndxklfsdkfjsaadiepwn ofuierfsdkljffjoiejftyuir reykfgkodfgkfdskgdfogpdokgsdfpg ztretrtireotreotieroptkierert etudjfirejer yrty uiyy uiyiyj lildvucv erfdfe poiiumwq ---End Notable Strings--- The next four artifacts contain identical characteristics as those described above. Therefore, only capability that is unique will be described for the following four artifacts. 2151c1977b4555a1761c12f151969f8e853e26c396fa1a7b74ccbaf3a48f4525 Tags trojan Details Name 5C3898AC7670DA30CF0B22075F3E8ED6 Size 221184 bytes Type PE32 executable (GUI) Intel 80386, for MS Windows MD5 5c3898ac7670da30cf0b22075f3e8ed6 SHA1 91110c569a48b3ba92d771c5666a05781fdd6a57 SHA256 2151c1977b4555a1761c12f151969f8e853e26c396fa1a7b74ccbaf3a48f4525 SHA512 700ec4d923cf0090f4428ac3d4d205b551c3e48368cf90d37f9831d8a57e73c73eb507d1731662321c723362c9318c3f019716991073dc9a4cc829ce01540337 ssdeep 3072:nKBzqEHcJw0sqz7vLFOLBAqui1mqLK1VaU9BzNRyHmdMaF0QqWN0Qjpthmu:nKg0cJ19z7vLFOLSqp0q7syHeFhnhm Entropy 6.346504 Antivirus ESET a variant of Win32/NukeSped.AI trojan Yara Rules hidden_cobra_consolidated.yara rule crypt_constants_2 { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $ = {efcdab90} $ = {558426fe} $ = {7856b4c2} condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) == 0x4550) and all of them } hidden_cobra_consolidated.yara rule lsfr_constants { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $ = {efcdab90} $ = {558426fe} $ = {7856b4c2} condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) == 0x4550) and all of them } hidden_cobra_consolidated.yara rule polarSSL_servernames { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $polarSSL = "fjiejffndxklfsdkfjsaadiepwn" $sn1 = "www.google.com" $sn2 = "www.naver.com" condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) -- 0x4550) and ($polarSSL and 1 of ($sn*)) } ssdeep Matches No matches found. PE Metadata Compile Date 2017-05-16 02:35:55-04:00 Import Hash 6ffc5804961e26c43256df683fea6922 PE Sections MD5 Name Raw Size Entropy adb596d3ceae66510778e3bf5d4d9582 header 4096 0.695660 6453931a0b6192e0bbd6476e736ca63f .text 184320 6.343388 0ba1433cc62ba7903ada2f1e57603e83 .rdata 16384 6.246206 76a08265777f68f08e5e6ed2102cb31d .data 12288 4.050945 cb8939d6bc1cd076acd850c3850bdf78 .rsrc 4096 3.289605 Packers/Compilers/Cryptors Microsoft Visual C++ v6.0 Relationships 2151c1977b... Connected_To 81.94.192.147 2151c1977b... Connected_To 112.175.92.57 2151c1977b... Related_To 181.39.135.126 2151c1977b... Related_To 197.211.212.59 2151c1977b... Related_To 70902623c9cd0cccc8513850072b70732d02c266c7b7e96d2d5b2ed4f5edc289 2151c1977b... Dropped 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7 Description This artifact is a malicious PE32 executable with similar characteristics of those described in 23E27E5482E3F55BF828DAB885569033 above. When this artifact is executed, it will write the file 'udbcgiut.dat' to C:\Users lt;user>\AppData\Local\Temp. The malware will then attempt outbound SSL connections to 81.94.192.147 and 112.175.92.57. Both connection attempts are over TCP Port 443. The two IP addresses above, as well as the IP addresses 181.39.135.126 and 197.211.212.59 are hard-coded into the malware. However, only connections to the first two IP addresses were attempted during analysis. 197.211.212.59 Ports * 7443 TCP Whois inetnum: 197.211.208.0 - 197.211.215.255 netname: ZOL-16e-MOBILE-CUSTOMERS descr: ZOL Customers on ZTE Mobile WiMAX Platform country: ZW admin-c: BS10-AFRINIC admin-c: GJ1-AFRINIC admin-c: JHM1-AFRINIC tech-c: BS10-AFRINIC tech-c: GJ1-AFRINIC tech-c: JHM1-AFRINIC status: ASSIGNED PA mnt-by: LIQUID-TOL-MNT source: AFRINIC # Filtered parent: 197.211.192.0 - 197.211.255.255 person: B Siwela address: 3rd Floor Greenbridge South address: Eastgate Center address: R. Mugabe Road address: Harare address: Zimbabwe phone: +263774673452 fax-no: +2634702375 nic-hdl: BS10-AFRINIC mnt-by: GENERATED-DVCNVXWBH3VN3XZXTRPHOT0OJ77GUNN3-MNT source: AFRINIC # Filtered person: G Jaya address: 3rd Floor Greenbridge South address: Eastgate Center address: R. Mugabe Road address: Harare address: Zimbabwe phone: +263773373135 fax-no: +2634702375 nic-hdl: GJ1-AFRINIC mnt-by: GENERATED-QPEEUIPPW1WPRZ5HLHRXAVHDOKWLC9UC-MNT source: AFRINIC # Filtered person: John H Mwangi address: Liquid Telecom Kenya address: P.O.Box 62499 - 00200 address: Nairobi Kenya address: Nairobi, Kenya address: Kenya phone: + 254 20 556 755 Relationships 197.211.212.59 Related_To 2151c1977b4555a1761c12f151969f8e853e26c396fa1a7b74ccbaf3a48f4525 197.211.212.59 Connected_From ddea408e178f0412ae78ff5d5adf2439251f68cad4fd853ee466a3c74649642d 197.211.212.59 Connected_From 70034b33f59c6698403293cdc28676c7daa8c49031089efa6eefce41e22dccb3 Description This IP address is listed in the file 'udbcgiut.dat'. Outbound SSL connection attempts are made to this IP by Malware2.exe, Malware3.exe, and Malware5.exe. The domain, zol-ad-bdc.zol.co.zw is associated with the IP address, however, no DNS query is made for the name. 181.39.135.126 Ports * 7443 TCP Whois inetnum: 181.39.135.120/29 status: reallocated owner: Clientes Guayaquil ownerid: EC-CLGU1-LACNIC responsible: Tomislav Topic address: Kennedy Norte Mz. 109 Solar 21, 5, Piso 2 address: 5934 - Guayaquil - GY country: EC phone: +593 4 2680555 [101] owner-c: SEL tech-c: SEL abuse-c: SEL created: 20160720 changed: 20160720 inetnum-up: 181.39/16 nic-hdl: SEL person: Carlos Montero e-mail: networking () TELCONET EC address: Kennedy Norte MZ, 109, Solar 21 address: 59342 - Guayaquil - country: EC phone: +593 42680555 [4601] created: 20021004 changed: 20170323 Relationships 181.39.135.126 Related_To 2151c1977b4555a1761c12f151969f8e853e26c396fa1a7b74ccbaf3a48f4525 181.39.135.126 Connected_From ddea408e178f0412ae78ff5d5adf2439251f68cad4fd853ee466a3c74649642d 181.39.135.126 Connected_From 70034b33f59c6698403293cdc28676c7daa8c49031089efa6eefce41e22dccb3 Description This IP address is listed in the file 'udbcgiut.dat'. Outbound SSL connection attempts are made to this IP by Malware2.exe, Malware3.exe, and Malware5.exe. No domain is associated with the IP address. 112.175.92.57 Ports * 443 TCP Whois inetnum: 112.160.0.0 - 112.191.255.255 netname: KORNET descr: Korea Telecom admin-c: IM667-AP tech-c: IM667-AP country: KR status: ALLOCATED PORTABLE mnt-by: MNT-KRNIC-AP mnt-irt: IRT-KRNIC-KR last-modified: 2017-02-03T02:21:58Z source: APNIC irt: IRT-KRNIC-KR address: Seocho-ro 398, Seocho-gu, Seoul, Korea e-mail: hostmaster () nic or kr abuse-mailbox: hostmaster () nic or kr admin-c: IM574-AP tech-c: IM574-AP auth: # Filtered mnt-by: MNT-KRNIC-AP last-modified: 2017-10-19T07:36:36Z source: APNIC person: IP Manager address: Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90 country: KR phone: +82-2-500-6630 e-mail: kornet_ip () kt com nic-hdl: IM667-AP mnt-by: MNT-KRNIC-AP last-modified: 2017-03-28T06:37:04Z source: APNIC Relationships 112.175.92.57 Connected_From 2151c1977b4555a1761c12f151969f8e853e26c396fa1a7b74ccbaf3a48f4525 112.175.92.57 Connected_From ddea408e178f0412ae78ff5d5adf2439251f68cad4fd853ee466a3c74649642d 112.175.92.57 Connected_From 70034b33f59c6698403293cdc28676c7daa8c49031089efa6eefce41e22dccb3 112.175.92.57 Connected_From 83228075a604e955d59edc760e4c4ed16eedabfc8f6ac291cf21b4fcbcd1f70a Description This IP address is listed in the file 'udbcgiut.dat'. Outbound SSL connection attempts are made to this IP by Malware2.exe, Malware3.exe, and Malware5.exe. The domain, mail.everzone.co.kr is associated with the IP address, however, no DNS query is made for the name. 81.94.192.147 Ports * 443 TCP Whois inetnum: 81.94.192.0 - 81.94.192.255 netname: IOMARTHOSTING descr: iomart Hosting Limited country: GB admin-c: RA1415-RIPE tech-c: RA1415-RIPE status: ASSIGNED PA remarks: ABUSE REPORTS: abuse () redstation com mnt-by: REDSTATION-MNT mnt-domains: REDSTATION-MNT mnt-routes: REDSTATION-MNT created: 2016-02-14T11:44:25Z last-modified: 2016-02-14T11:44:25Z source: RIPE role: Redstation Admin Role address: Redstation Limited address: 2 Frater Gate Business Park address: Aerodrome Road address: Gosport address: Hampshire address: PO13 0GW address: UNITED KINGDOM abuse-mailbox: abuse () redstation com e-mail: abuse () redstation com nic-hdl: RA1415-RIPE mnt-by: REDSTATION-MNT created: 2005-04-22T17:34:33Z last-modified: 2017-05-02T09:47:13Z source: RIPE % Information related to '81.94.192.0/24AS20860' route: 81.94.192.0/24 descr: Wayne Dalton - Redstation Ltd origin: AS20860 mnt-by: GB10488-RIPE-MNT created: 2015-11-03T12:58:00Z last-modified: 2015-11-03T12:58:00Z source: RIPE Relationships 81.94.192.147 Connected_From 2151c1977b4555a1761c12f151969f8e853e26c396fa1a7b74ccbaf3a48f4525 81.94.192.147 Connected_From ddea408e178f0412ae78ff5d5adf2439251f68cad4fd853ee466a3c74649642d 81.94.192.147 Connected_From 70034b33f59c6698403293cdc28676c7daa8c49031089efa6eefce41e22dccb3 Description This IP address is listed in the file 'udbcgiut.dat'. Outbound SSL connection attempts are made to this IP by Malware2.exe, Malware3.exe, and Malware5.exe. No domain is associated with the IP address. 70902623c9cd0cccc8513850072b70732d02c266c7b7e96d2d5b2ed4f5edc289 Details Name udbcgiut.dat Size 1171 bytes Type data MD5 ae829f55db0198a0a36b227addcdeeff SHA1 04833210fa57ea70a209520f4f2a99d049e537f2 SHA256 70902623c9cd0cccc8513850072b70732d02c266c7b7e96d2d5b2ed4f5edc289 SHA512 1b4509102ac734ce310b6f8631b1bedd772a38582b4feda9fee09f1edd096006cf5ba528435c844effa97f95984b07bd2c111aa480bb22f4bcfbc751f069868d ssdeep 3:ElclFUl8GlFcmzkXIil23X1ll:ElcUXmQkXQ3 Entropy 0.395693 Antivirus No matches found. Yara Rules No matches found. ssdeep Matches No matches found. Relationships 70902623c9... Dropped_By 70034b33f59c6698403293cdc28676c7daa8c49031089efa6eefce41e22dccb3 70902623c9... Related_To ddea408e178f0412ae78ff5d5adf2439251f68cad4fd853ee466a3c74649642d 70902623c9... Related_To 2151c1977b4555a1761c12f151969f8e853e26c396fa1a7b74ccbaf3a48f4525 70902623c9... Related_To 70034b33f59c6698403293cdc28676c7daa8c49031089efa6eefce41e22dccb3 70902623c9... Related_To 12480585e08855109c5972e85d99cda7701fe992bc1754f1a0736f1eebcb004d Description 'udbcgiut.dat' is dropped by three of the four PE32 executables. This file contains a 32byte unicode string uniquely generated for the infected system, as well as four socket pairs in hexidecimal. ---Begin Decoded Socket Pairs--- 197.211.212.59:443 181.39.135.126:443 112.175.92.57:7443 81.94.192.147:7443 ---End Decoded Socket Pairs--- The unicode string generated during this analysis was '8a9b11762b96c4b6'. The socket pairs remain the same for all instances of the malware. For the PE32 executables, 'udbcgiut.dat' was dropped in the victim's profile at %AppData%\Local\Temp. For the 64bit executables, 'udbcgiut.dat' was dropped in C:\Windows. 4c372df691fc699552f81c3d3937729f1dde2a2393f36c92ccc2bd2a033a0818 Tags trojan Details Name C5DC53A540ABE95E02008A04A0D56D6C Size 241152 bytes Type PE32 executable (GUI) Intel 80386, for MS Windows MD5 c5dc53a540abe95e02008a04a0d56d6c SHA1 4cfe9e353b1a91a2add627873846a3ad912ea96b SHA256 4c372df691fc699552f81c3d3937729f1dde2a2393f36c92ccc2bd2a033a0818 SHA512 fc33c99facfbc98d164e63167353bdcff7c1704810e4bb64f7e56812412d84099b224086c04aea66e321cd546d8cf6f14196f5b58d5e931c68064d659c33b6a2 ssdeep 6144:LA5cWD93YuzTvLFOLoqbWbnuX7ZEAV6efA/Pawzq:Xc93YbLZEAV6mX Entropy 6.534884 Antivirus ESET a variant of Win32/NukeSped.AS trojan Yara Rules hidden_cobra_consolidated.yara rule crypt_constants_2 { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $ = {efcdab90} $ = {558426fe} $ = {7856b4c2} condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) == 0x4550) and all of them } hidden_cobra_consolidated.yara rule lsfr_constants { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $ = {efcdab90} $ = {558426fe} $ = {7856b4c2} condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) == 0x4550) and all of them } hidden_cobra_consolidated.yara rule polarSSL_servernames { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $polarSSL = "fjiejffndxklfsdkfjsaadiepwn" $sn1 = "www.google.com" $sn2 = "www.naver.com" condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) -- 0x4550) and ($polarSSL and 1 of ($sn*)) } ssdeep Matches No matches found. PE Metadata Compile Date 2017-06-04 21:31:07-04:00 Import Hash c76f6bb3f2ce6f4ce3e83448836f3ddd PE Sections MD5 Name Raw Size Entropy 64cb3246aafa83129f7fd6b25d572a9f header 1024 2.625229 e8c15e136370c12020eb23545085b9f6 .text 196096 6.431942 cf0eb4ad22ac1ca687b87a0094999ac8 .rdata 26624 5.990247 b246681e20b3c8ff43e1fcf6c0335287 .data 8192 4.116777 6545248a1e3449e95314cbc874837096 .rsrc 512 5.112624 31a7ab6f707799d327b8425f6693c220 .reloc 8704 5.176231 Packers/Compilers/Cryptors Microsoft Visual C++ ?.? Description This artifact is a malicious PE32 executable with similar characteristics of those described in 23E27E5482E3F55BF828DAB885569033 above. This artifact appears to be named 'lamp.exe'. The malware contains the following debug pathway: ---Begin Debug Pathway--- Z:\Develop1.LampExe\Release\LampExe.pdb ---End Debug Pathway--- ddea408e178f0412ae78ff5d5adf2439251f68cad4fd853ee466a3c74649642d Tags adwaretrojan Details Name BE588CD29B9DC6F8CFC4D0AA5E5C79AA Name ddea408e178f0412ae78ff5d5adf2439251f68cad4fd853ee466a3c74649642d Size 267776 bytes Type PE32 executable (GUI) Intel 80386, for MS Windows MD5 be588cd29b9dc6f8cfc4d0aa5e5c79aa SHA1 06be4fe1f26bc3e4bef057ec83ae81bd3199c7fc SHA256 ddea408e178f0412ae78ff5d5adf2439251f68cad4fd853ee466a3c74649642d SHA512 c074ec876350b3ee3f82208041152c0ecf25cc8600c8277eec389c253c12372e78da59182a6df8331b05e0eefb07c142172951115a582606f68b824e1d48f30d ssdeep 6144:UEFpmt3md/iA3uiyzOvLFOLYqnHGZlDwf/OYy85eqmJKRPg:/PQ3mJxeigqi/OYy+/g Entropy 6.554499 Antivirus ESET a variant of Win32/NukeSped.AI trojan Filseclab Adware.Amonetize.heur.xjym.mg Yara Rules hidden_cobra_consolidated.yara rule crypt_constants_2 { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $ = {efcdab90} $ = {558426fe} $ = {7856b4c2} condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) == 0x4550) and all of them } hidden_cobra_consolidated.yara rule lsfr_constants { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $ = {efcdab90} $ = {558426fe} $ = {7856b4c2} condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) == 0x4550) and all of them } hidden_cobra_consolidated.yara rule polarSSL_servernames { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $polarSSL = "fjiejffndxklfsdkfjsaadiepwn" $sn1 = "www.google.com" $sn2 = "www.naver.com" condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) -- 0x4550) and ($polarSSL and 1 of ($sn*)) } ssdeep Matches No matches found. PE Metadata Compile Date 2017-06-06 10:33:38-04:00 Import Hash 8184d5d35e3a4640bb5d21698a4b6021 PE Sections MD5 Name Raw Size Entropy 59b5d567b9b7b9da0ca0936675fd95fe header 1024 2.658486 c0b6929e0f01a7b61bde3d7400a801e0 .text 218624 6.470188 ce1e5ab830fcfaa2d7bea92f56e9026e .rdata 27136 5.962575 006bad003b65738ed203a576205cc546 .data 8192 4.157373 992987e022da39fcdbeede8ddd48f226 .rsrc 3072 5.511870 4be460324f0f4dc1f6a0983752094cce .reloc 9728 5.303151 Packers/Compilers/Cryptors Microsoft Visual C++ ?.? Relationships ddea408e17... Connected_To 81.94.192.147 ddea408e17... Connected_To 112.175.92.57 ddea408e17... Connected_To 181.39.135.126 ddea408e17... Connected_To 197.211.212.59 ddea408e17... Related_To 70902623c9cd0cccc8513850072b70732d02c266c7b7e96d2d5b2ed4f5edc289 ddea408e17... Connected_To 81.94.192.10 Description This artifact is a malicious PE32 executable with similar characteristics of those described in 23E27E5482E3F55BF828DAB885569033 above. This program attempts to initiate a TLS Handshake to the four IP/Port pairs listed in 'udbcgiut.dat'. If the program is unable to establish a connection, the file 'udbcgiut.dat' is deleted. After 'udbcgiut.dat' is deleted, an outbound SSL connection is made to 81.94.192.10. The IP address is hard coded in the malware and are not randomly generated. This artifact also loads several APIs that are commonly associated with Pass-The-Hash (PTH) toolkits, indicating a capability to harvest user credentials and passwords. ---Begin Common PTH APIs--- SamiChangePasswordUser SamFreeMemory SamCloseHandle SamOpenUser SamLookupNamesInDomain SamOpenDomain SamConnect ---End Common PTH APIs--- 81.94.192.10 Whois Domain name: redstation.net.uk Registrant: Redstation Limited Registrant type: UK Limited Company, (Company number: 3590745) Registrant's address: 2 Frater Gate Business Park Aerodrome Road Gosport Hampshire PO13 0GW United Kingdom Data validation: Nominet was able to match the registrant's name and address against a 3rd party data source on 21-Feb-2017 Registrar: Easyspace Ltd [Tag = EASYSPACE] URL: https://www.easyspace.com/domain-names/extensions/uk Relevant dates: Registered on: 11-Apr-2005 Expiry date: 11-Apr-2019 Last updated: 12-Apr-2017 Registration status: Registered until expiry date. Name servers: ns1.redstation.com ns2.redstation.com Relationships 81.94.192.10 Connected_From ddea408e178f0412ae78ff5d5adf2439251f68cad4fd853ee466a3c74649642d Description A high port to high port connection attempt is made to this IP address from 'Malware5.dll'. No domain is associated with the IP address. 12480585e08855109c5972e85d99cda7701fe992bc1754f1a0736f1eebcb004d Tags trojan Details Name 868036E102DF4CE414B0E6700825B319 Size 453791 bytes Type PE32+ executable (GUI) x86-64, for MS Windows MD5 868036e102df4ce414b0e6700825b319 SHA1 7f1e68d78e455aa14de9020abd2293c3b8ec6cf8 SHA256 12480585e08855109c5972e85d99cda7701fe992bc1754f1a0736f1eebcb004d SHA512 724d83493dbe86cfcee7f655272d2c733baa5470d7da986e956c789aa1b8f518ad94b575e655b4fe5f6f7d426b9aa7d8304fc879b82a385142b8924e0d454363 ssdeep 12288:eb/3G8vg+Rg1cvAHtE0MLa07rt5POui6z:+/3G8vg+pvi9Sa07rt4ui6z Entropy 7.713852 Antivirus NANOAV Trojan.Win64.Crypted.excqpl Yara Rules No matches found. ssdeep Matches 90 890d3928be0f36b1f4dcfffb20ac3747a31451ce010caba768974bfccdc26e7c PE Metadata Compile Date 2017-06-06 10:54:03-04:00 Import Hash 947a389c3886c5fa7f3e972fd4d7740c PE Sections MD5 Name Raw Size Entropy e772c7a04c7e3d53c58fdb8a88bb0c02 header 1024 2.486400 a6a2750e5b57470403299e0327553042 .text 34816 6.297430 cc5d69374e9b0266a4b1119e5274d392 .rdata 12288 4.715650 ac4ee21fcb2501656efc217d139ec804 .data 5120 1.876950 359af12d4a14ced423d39736dfec613a .pdata 2560 3.878158 097e0e4be076b795a7316f1746bace8a .rsrc 3072 5.514584 5849f380266933d6f3c5c4740334b041 .reloc 1024 2.517963 Packers/Compilers/Cryptors Microsoft Visual C++ 8.0 (DLL) Relationships 12480585e0... Related_To 70902623c9cd0cccc8513850072b70732d02c266c7b7e96d2d5b2ed4f5edc289 12480585e0... Dropped 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 Description This artifact is a malicious x64 executable with similar characteristics of those described in 23E27E5482E3F55BF828DAB885569033 above. In addition to the capabilities described above, this variant will hook the Windows Local Security Authority (lsass.exe). 'lsass.exe' will check the registry for the data value 'rdpproto' under the key SYSTEM\CurrentControlSet\Control\Lsa Name: Security Packages. If not found, this value is added by 'lsass.exe'. Next, the malware will drop the embedded file, 'rdpproto.dll' into the %System32% directory. The file, 'udbcgiut.dat' is then written to C:\Windows. Outbound connection attempts are made to the socket pairs found within this file as described above. 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 Tags trojan Details Name rdpproto.dll Size 391680 bytes Type PE32+ executable (DLL) (console) x86-64, for MS Windows MD5 dc268b166fe4c1d1c8595dccf857c476 SHA1 8264556c8a6e460760dc6bb72ecc6f0f966a16b8 SHA256 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 SHA512 b47c4caa0b5c17c982fcd040c7171d36ec962fe32e9b8bec567ee14b187507fe90e026aa05eec17d36c49a924eeaed55e66c95a111cfa9dcae0e305ab9515cac ssdeep 6144:jfsTC8amAXJeZP6BPjIDeLkigDxcvAHjVXjhtBGshMLa1Mj7rtlkiP60dwtudIye:jvg+Rg1cvAHtE0MLa07rt5POui6 Entropy 7.893665 Antivirus Avira TR/Crypt.XPACK.xuqld BitDefender Trojan.Generic.22790108 ESET a variant of Generik.MYWMFCM trojan Emsisoft Trojan.Generic.22790108 (B) Ikarus Trojan.SuspectCRC NANOAV Trojan.Win64.Crypted.excqpl Yara Rules No matches found. ssdeep Matches 99 890d3928be0f36b1f4dcfffb20ac3747a31451ce010caba768974bfccdc26e7c PE Metadata Compile Date 2017-06-06 11:34:06-04:00 Import Hash 360d26520c50825099ec61e97b01a43b PE Sections MD5 Name Raw Size Entropy 3bb2a7d6aab283c82ab853f536157ce2 header 1024 2.524087 b0bf8ec7b067fd3592c0053702e34504 .text 23552 6.180871 6cc98c5fef3ea1b782262e355b5c5862 .rdata 10752 4.635336 484d4698d46b3b5ad033c1a80ba83acf .data 4096 2.145716 a07c8f17c18c6789a3e757aec183aea6 .pdata 2048 3.729952 fae0d0885944745d98849422bd799457 .rsrc 348672 7.997488 0c1c23e1fb129b1b1966f70fc75cf20e .reloc 1536 1.737829 Relationships 49757cf856... Dropped_By 12480585e08855109c5972e85d99cda7701fe992bc1754f1a0736f1eebcb004d 49757cf856... Connected_To 21.252.107.198 49757cf856... Connected_To 70.224.36.194 49757cf856... Connected_To 113.114.117.122 49757cf856... Connected_To 47.206.4.145 49757cf856... Connected_To 84.49.242.125 49757cf856... Connected_To 26.165.218.44 49757cf856... Connected_To 137.139.135.151 49757cf856... Connected_To 97.90.44.200 49757cf856... Connected_To 128.200.115.228 49757cf856... Connected_To 186.169.2.237 Description "rdpproto.dll" is dropped into the %System32% directory by 868036E102DF4CE414B0E6700825B319. When the library is loaded, "rdpproto.dll" will attempt to send SSL Client Hello packets to any of the following embedded IP addresses: ---Begin Embedded IP Addresses--- 21.252.107.198 70.224.36.194 113.114.117.122 47.206.4.145 84.49.242.125 26.165.218.44 137.139.135.151 97.90.44.200 128.200.115.228 186.169.2.237 ---End Embedded IP Addresses--- This artifact contains the following notable strings: ---Begin Notable Strings--- CompanyName Adobe System Incorporated FileDescription MicrosoftWindows TransFilter/FilterType : 01 WindowsNT Service FileVersion 6.1 Build 7601 InternalName TCP/IP Packet Filter Service LegalCopyright Copyright 2015 - Adobe System Incorporated LegalTrademarks OriginalFileName TCP/IP - PacketFilter ---End Notable Strings--- 21.252.107.198 Ports * 23164 TCP Whois NetRange: 21.0.0.0 - 21.255.255.255 CIDR: 21.0.0.0/8 NetName: DNIC-SNET-021 NetHandle: NET-21-0-0-0-1 Parent: () NetType: Direct Allocation OriginAS: Organization: DoD Network Information Center (DNIC) RegDate: 1991-06-30 Updated: 2009-06-19 Ref: https://whois.arin.net/rest/net/NET-21-0-0-0-1 OrgName: DoD Network Information Center OrgId: DNIC Address: 3990 E. Broad Street City: Columbus StateProv: OH PostalCode: 43218 Country: US RegDate: Updated: 2011-08-17 Ref: https://whois.arin.net/rest/org/DNIC Relationships 21.252.107.198 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 21.252.107.198 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 Description A high port to high port connection attempt is made to this IP address from 'Malware2.dll'. No domain is associated with the IP address. 70.224.36.194 Ports * 59681 TCP Whois Domain Name: AMERITECH.NET Registry Domain ID: 81816_DOMAIN_NET-VRSN Registrar WHOIS Server: whois.corporatedomains.com Registrar URL: http://www.cscglobal.com/global/web/csc/digital-brand-services.html Updated Date: 2017-06-09T05:27:34Z Creation Date: 1996-06-14T04:00:00Z Registry Expiry Date: 2018-06-13T04:00:00Z Registrar: CSC Corporate Domains, Inc. Registrar IANA ID: 299 Registrar Abuse Contact Email: domainabuse () cscglobal com Registrar Abuse Contact Phone: 8887802723 Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited Name Server: NS1.ATTDNS.COM Name Server: NS2.ATTDNS.COM Name Server: NS3.ATTDNS.COM Name Server: NS4.ATTDNS.COM DNSSEC: unsigned Domain Name: ameritech.net Registry Domain ID: 81816_DOMAIN_NET-VRSN Registrar WHOIS Server: whois.corporatedomains.com Registrar URL: www.cscprotectsbrands.com Updated Date: 2017-06-09T05:27:34Z Creation Date: 1996-06-14T04:00:00Z Registrar Registration Expiration Date: 2018-06-13T04:00:00Z Registrar: CSC CORPORATE DOMAINS, INC. Registrar IANA ID: 299 Registrar Abuse Contact Email: domainabuse () cscglobal com Registrar Abuse Contact Phone: +1.8887802723 Domain Status: clientTransferProhibited http://www.icann.org/epp#clientTransferProhibited Registry Registrant ID: Registrant Name: Domain Administrator Registrant Organization: AT&T SERVICES, INC. Registrant Street: 801 Chestnut Street Registrant City: Saint Louis Registrant State/Province: MO Registrant Postal Code: 63101 Registrant Country: US Registrant Phone: +1.3142358168 Registrant Phone Ext: Registrant Fax: +1.3142358168 Registrant Fax Ext: Registrant Email: att-domains () att com Registry Admin ID: Admin Name: Domain Administrator Admin Organization: AT&T SERVICES, INC. Admin Street: 801 Chestnut Street Admin City: Saint Louis Admin State/Province: MO Admin Postal Code: 63101 Admin Country: US Admin Phone: +1.3142358168 Admin Phone Ext: Admin Fax: +1.3142358168 Admin Fax Ext: Admin Email: att-domains () att com Registry Tech ID: Tech Name: Domain Administrator Tech Organization: AT&T SERVICES, INC. Tech Street: 801 Chestnut Street Tech City: Saint Louis Tech State/Province: MO Tech Postal Code: 63101 Tech Country: US Tech Phone: +1.3142358168 Tech Phone Ext: Tech Fax: +1.3142358168 Tech Fax Ext: Tech Email: att-domains () att com Name Server: ns3.attdns.com Name Server: ns1.attdns.com Name Server: ns2.attdns.com Name Server: ns4.attdns.com DNSSEC: unsigned Relationships 70.224.36.194 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 70.224.36.194 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 Description A high port to high port connection attempt is made to this IP address from 'Malware2.dll'. No domain is associated with the IP address. 113.114.117.122 Ports * 23397 TCP Whois inetnum: 113.112.0.0 - 113.119.255.255 netname: CHINANET-GD descr: CHINANET Guangdong province network descr: Data Communication Division descr: China Telecom country: CN admin-c: CH93-AP tech-c: IC83-AP remarks: service provider status: ALLOCATED PORTABLE mnt-by: APNIC-HM mnt-lower: MAINT-CHINANET-GD mnt-routes: MAINT-CHINANET-GD last-modified: 2016-05-04T00:15:17Z source: APNIC mnt-irt: IRT-CHINANET-CN irt: IRT-CHINANET-CN address: No.31 ,jingrong street,beijing address: 100032 e-mail: anti-spam () ns chinanet cn net abuse-mailbox: anti-spam () ns chinanet cn net admin-c: CH93-AP tech-c: CH93-AP auth: # Filtered mnt-by: MAINT-CHINANET last-modified: 2010-11-15T00:31:55Z source: APNIC person: Chinanet Hostmaster nic-hdl: CH93-AP e-mail: anti-spam () ns chinanet cn net address: No.31 ,jingrong street,beijing address: 100032 phone: +86-10-58501724 fax-no: +86-10-58501724 country: CN mnt-by: MAINT-CHINANET last-modified: 2014-02-27T03:37:38Z source: APNIC person: IPMASTER CHINANET-GD nic-hdl: IC83-AP e-mail: gdnoc_HLWI () 189 cn address: NO.18,RO. ZHONGSHANER,YUEXIU DISTRIC,GUANGZHOU phone: +86-20-87189274 fax-no: +86-20-87189274 country: CN mnt-by: MAINT-CHINANET-GD remarks: IPMASTER is not for spam complaint,please send spam complaint to abuse_gdnoc () 189 cn abuse-mailbox: antispam_gdnoc () 189 cn last-modified: 2014-09-22T04:41:26Z source: APNIC Relationships 113.114.117.122 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 113.114.117.122 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 Description A high port to high port connection attempt is made to this IP address from 'Malware2.dll'. No domain is associated with the IP address. 47.206.4.145 Ports * 59067 TCP Whois Domain Name: FRONTIERNET.NET Registry Domain ID: 4305589_DOMAIN_NET-VRSN Registrar WHOIS Server: whois.register.com Registrar URL: http://www.register.com Updated Date: 2017-09-14T07:53:05Z Creation Date: 1995-10-14T04:00:00Z Registry Expiry Date: 2018-10-13T04:00:00Z Registrar: Register.com, Inc. Registrar IANA ID: 9 Registrar Abuse Contact Email: abuse () web com Registrar Abuse Contact Phone: +1.8003337680 Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited Name Server: AUTH.DLLS.PA.FRONTIERNET.NET Name Server: AUTH.FRONTIERNET.NET Name Server: AUTH.LKVL.MN.FRONTIERNET.NET Name Server: AUTH.ROCH.NY.FRONTIERNET.NET DNSSEC: unsigned Domain Name: FRONTIERNET.NET Registry Domain ID: 4305589_DOMAIN_NET-VRSN Registrar WHOIS Server: whois.register.com Registrar URL: www.register.com Updated Date: 2017-09-14T00:53:05.00Z Creation Date: 1995-10-14T04:00:00.00Z Registrar Registration Expiration Date: 2018-10-13T04:00:00.00Z Registrar: REGISTER.COM, INC. Registrar IANA ID: 9 Domain Status: clientTransferProhibited https://www.icann.org/epp#clientTransferProhibited Registry Registrant ID: Registrant Name: FRONTIERNET HOSTMASTER Registrant Organization: Registrant Street: 95 N. FITZHUGH ST. Registrant City: ROCHESTER Registrant State/Province: NY Registrant Postal Code: 14614-1212 Registrant Country: US Registrant Phone: +1.8664747662 Registrant Phone Ext: Registrant Fax: Registrant Fax Ext: Registrant Email: HOSTMASTER () FRONTIERNET NET Registry Admin ID: Admin Name: FRONTIERNET HOSTMASTER Admin Organization: Admin Street: 95 N. FITZHUGH ST. Admin City: ROCHESTER Admin State/Province: NY Admin Postal Code: 14614-1212 Admin Country: US Admin Phone: +1.8664747662 Admin Phone Ext: Admin Fax: Admin Fax Ext: Admin Email: HOSTMASTER () FRONTIERNET NET Registry Tech ID: Tech Name: FRONTIERNET HOSTMASTER Tech Organization: Tech Street: 95 N. FITZHUGH ST. Tech City: ROCHESTER Tech State/Province: NY Tech Postal Code: 14614-1212 Tech Country: US Tech Phone: +1.8664747662 Tech Phone Ext: Tech Fax: Tech Fax Ext: Tech Email: HOSTMASTER () FRONTIERNET NET Name Server: AUTH.DLLS.PA.FRONTIERNET.NET Name Server: AUTH.FRONTIERNET.NET Name Server: AUTH.LKVL.MN.FRONTIERNET.NET Name Server: AUTH.ROCH.NY.FRONTIERNET.NET DNSSEC: unSigned Relationships 47.206.4.145 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 47.206.4.145 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 Description A high port to high port connection attempt is made to this IP address from 'Malware2.dll'. No domain is associated with the IP address. 84.49.242.125 Ports * 17770 TCP Whois Domain Name: NEXTGENTEL.COM Registry Domain ID: 13395561_DOMAIN_COM-VRSN Registrar WHOIS Server: whois.domaininfo.com Registrar URL: http://www.ports.domains Updated Date: 2017-11-10T23:44:50Z Creation Date: 1999-11-17T15:47:51Z Registry Expiry Date: 2018-11-17T15:47:51Z Registrar: Ports Group AB Registrar IANA ID: 73 Registrar Abuse Contact Email: abuse () portsgroup se Registrar Abuse Contact Phone: +46.707260017 Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited Name Server: ANYADNS1.NEXTGENTEL.NET Name Server: ANYADNS2.NEXTGENTEL.NET DNSSEC: unsigned Domain Name: nextgentel.com Registry Domain ID: 13395561_DOMAIN_COM-VRSN Registrar WHOIS Server: whois.domaininfo.com Registrar URL: ports.domains Updated Date: 2017-11-10T23:44:50Z Creation Date: 1999-11-17T15:47:51Z Registrar Registration Expiration Date: 2018-11-17T15:47:51Z Registrar: PortsGroup AB Registrar IANA ID: 73 Registrar Abuse Contact Email: abuse () portsgroup se Registrar Abuse Contact Phone: +46.317202000 Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited Registry Registrant ID: Registrant Name: Hostmaster Registrant Organization: NextGenTel AS Registrant Street: Sandslimarka 31 Registrant City: SANDSLI Registrant State/Province: Registrant Postal Code: 5254 Registrant Country: NO Registrant Phone: +47.55527900 Registrant Fax: +47.55527910 Registrant Email: hostmaster () nextgentel com Registry Admin ID: Admin Name: Hostmaster Admin Organization: NextGenTel AS Admin Street: Sandslimarka 31 Admin City: Sandsli Admin State/Province: Admin Postal Code: 5254 Admin Country: NO Admin Phone: +47.55527900 Admin Fax: +47.55527910 Admin Email: hostmaster () nextgentel com Registry Tech ID: Tech Name: Hostmaster v/ Eivind Olsen Tech Organization: NextGenTel AS Tech Street: Postboks 3 Sandsli Tech City: Bergen Tech State/Province: Tech Postal Code: 5861 Tech Country: NO Tech Phone: +47.41649322 Tech Fax: +47.55527910 Tech Email: hostmaster () nextgentel com Name Server: ANYADNS1.NEXTGENTEL.NET Name Server: ANYADNS2.NEXTGENTEL.NET DNSSEC: unsigned Relationships 84.49.242.125 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 84.49.242.125 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 Description A high port to high port connection attempt is made to this IP address from 'Malware2.dll'. No domain is associated with the IP address. 26.165.218.44 Ports * 2248 TCP Whois NetRange: 26.0.0.0 - 26.255.255.255 CIDR: 26.0.0.0/8 NetName: DISANET26 NetHandle: NET-26-0-0-0-1 Parent: () NetType: Direct Allocation OriginAS: Organization: DoD Network Information Center (DNIC) RegDate: 1995-04-30 Updated: 2009-06-19 Ref: https://whois.arin.net/rest/net/NET-26-0-0-0-1 OrgName: DoD Network Information Center OrgId: DNIC Address: 3990 E. Broad Street City: Columbus StateProv: OH PostalCode: 43218 Country: US RegDate: Updated: 2011-08-17 Ref: https://whois.arin.net/rest/org/DNIC OrgTechHandle: MIL-HSTMST-ARIN OrgTechName: Network DoD OrgTechPhone: +1-844-347-2457 OrgTechEmail: disa.columbus.ns.mbx.hostmaster-dod-nic () mail mil OrgTechRef: https://whois.arin.net/rest/poc/MIL-HSTMST-ARIN OrgAbuseHandle: REGIS10-ARIN OrgAbuseName: Registration OrgAbusePhone: +1-844-347-2457 OrgAbuseEmail: disa.columbus.ns.mbx.arin-registrations () mail mil OrgAbuseRef: https://whois.arin.net/rest/poc/REGIS10-ARIN OrgTechHandle: REGIS10-ARIN OrgTechName: Registration OrgTechPhone: +1-844-347-2457 OrgTechEmail: disa.columbus.ns.mbx.arin-registrations () mail mil OrgTechRef: https://whois.arin.net/rest/poc/REGIS10-ARIN Relationships 26.165.218.44 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 26.165.218.44 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 Description A high port to high port connection attempt is made to this IP address from 'Malware2.dll'. No domain is associated with the IP address. 137.139.135.151 Ports * 64694 TCP Whois NetRange: 137.139.0.0 - 137.139.255.255 CIDR: 137.139.0.0/16 NetName: SUC-OLDWEST NetHandle: NET-137-139-0-0-1 Parent: NET137 (NET-137-0-0-0-0) NetType: Direct Assignment OriginAS: Organization: SUNY College at Old Westbury (SCAOW) RegDate: 1989-11-29 Updated: 2014-02-18 Ref: https://whois.arin.net/rest/net/NET-137-139-0-0-1 OrgName: SUNY College at Old Westbury OrgId: SCAOW Address: 223 Store Hill Road City: Old Westbury StateProv: NY PostalCode: 11568 Country: US RegDate: 1989-11-29 Updated: 2011-09-24 Ref: https://whois.arin.net/rest/org/SCAOW OrgTechHandle: SUNYO-ARIN OrgTechName: SUNYOWNOC OrgTechPhone: +1-516-876-3379 OrgTechEmail: sunyownoc () oldwestbury edu OrgTechRef: https://whois.arin.net/rest/poc/SUNYO-ARIN OrgAbuseHandle: SUNYO-ARIN OrgAbuseName: SUNYOWNOC OrgAbusePhone: +1-516-876-3379 OrgAbuseEmail: sunyownoc () oldwestbury edu OrgAbuseRef: https://whois.arin.net/rest/poc/SUNYO-ARIN RAbuseHandle: SUNYO-ARIN RAbuseName: SUNYOWNOC RAbusePhone: +1-516-876-3379 RAbuseEmail: sunyownoc () oldwestbury edu RAbuseRef: https://whois.arin.net/rest/poc/SUNYO-ARIN RTechHandle: SUNYO-ARIN RTechName: SUNYOWNOC RTechPhone: +1-516-876-3379 RTechEmail: sunyownoc () oldwestbury edu RTechRef: https://whois.arin.net/rest/poc/SUNYO-ARIN RNOCHandle: SUNYO-ARIN RNOCName: SUNYOWNOC RNOCPhone: +1-516-876-3379 RNOCEmail: sunyownoc () oldwestbury edu RNOCRef: https://whois.arin.net/rest/poc/SUNYO-ARIN Relationships 137.139.135.151 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 137.139.135.151 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 Description A high port to high port connection attempt is made to this IP address from 'Malware2.dll'. No domain is associated with the IP address. 97.90.44.200 Ports * 37120 TCP Whois Domain Name: CHARTER.COM Registry Domain ID: 340223_DOMAIN_COM-VRSN Registrar WHOIS Server: whois.markmonitor.com Registrar URL: http://www.markmonitor.com Updated Date: 2017-07-03T04:22:18Z Creation Date: 1994-07-30T04:00:00Z Registry Expiry Date: 2019-07-29T04:00:00Z Registrar: MarkMonitor Inc. Registrar IANA ID: 292 Registrar Abuse Contact Email: abusecomplaints () markmonitor com Registrar Abuse Contact Phone: +1.2083895740 Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited Name Server: NS1.CHARTER.COM Name Server: NS2.CHARTER.COM Name Server: NS3.CHARTER.COM Name Server: NS4.CHARTER.COM DNSSEC: unsigned Domain Name: charter.com Registry Domain ID: 340223_DOMAIN_COM-VRSN Registrar WHOIS Server: whois.markmonitor.com Registrar URL: http://www.markmonitor.com Updated Date: 2017-12-18T04:00:14-0800 Creation Date: 1994-07-29T21:00:00-0700 Registrar Registration Expiration Date: 2019-07-28T21:00:00-0700 Registrar: MarkMonitor, Inc. Registrar IANA ID: 292 Registrar Abuse Contact Email: abusecomplaints () markmonitor com Registrar Abuse Contact Phone: +1.2083895740 Domain Status: clientUpdateProhibited (https://www.icann.org/epp#clientUpdateProhibited) Domain Status: clientTransferProhibited (https://www.icann.org/epp#clientTransferProhibited) Domain Status: clientDeleteProhibited (https://www.icann.org/epp#clientDeleteProhibited) Registry Registrant ID: Registrant Name: Domain Admin Registrant Organization: Charter Communications Operating, LLC Registrant Street: 12405 Powerscourt Drive, Registrant City: Saint Louis Registrant State/Province: MO Registrant Postal Code: 63131 Registrant Country: US Registrant Phone: +1.3149650555 Registrant Phone Ext: Registrant Fax: +1.9064010617 Registrant Fax Ext: Registrant Email: hostmaster () charter com Registry Admin ID: Admin Name: Domain Admin Admin Organization: Charter Communications Operating, LLC Admin Street: 12405 Powerscourt Drive, Admin City: Saint Louis Admin State/Province: MO Admin Postal Code: 63131 Admin Country: US Admin Phone: +1.3149650555 Admin Phone Ext: Admin Fax: +1.9064010617 Admin Fax Ext: Admin Email: hostmaster () charter com Registry Tech ID: Tech Name: Charter Communications Internet Security and Abuse Tech Organization: Charter Communications Operating, LLC Tech Street: 12405 Powerscourt Drive, Tech City: Saint Louis Tech State/Province: MO Tech Postal Code: 63131 Tech Country: US Tech Phone: +1.3142883111 Tech Phone Ext: Tech Fax: +1.3149090609 Tech Fax Ext: Tech Email: abuse () charter net Name Server: ns4.charter.com Name Server: ns3.charter.com Name Server: ns1.charter.com Name Server: ns2.charter.com DNSSEC: unsigned Relationships 97.90.44.200 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 97.90.44.200 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 Description A high port to high port connection attempt is made to this IP address from 'Malware2.dll'. No domain is associated with the IP address. 128.200.115.228 Ports * 52884 TCP Whois Domain Name: UCI.EDU Registrant: University of California, Irvine 6366 Ayala Science Library Irvine, CA 92697-1175 UNITED STATES Administrative Contact: Con Wieland University of California, Irvine Office of Information Technology 6366 Ayala Science Library Irvine, CA 92697-1175 UNITED STATES (949) 824-2222 oit-nsp () uci edu Technical Contact: Con Wieland University of California, Irvine Office of Information Technology 6366 Ayala Science Library Irvine, CA 92697-1175 UNITED STATES (949) 824-2222 oit-nsp () uci edu Name Servers: NS4.SERVICE.UCI.EDU 128.200.59.190 NS5.SERVICE.UCI.EDU 52.26.131.47 Domain record activated: 30-Sep-1985 Domain record last updated: 07-Jul-2016 Domain expires: 31-Jul-2018 Relationships 128.200.115.228 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 128.200.115.228 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 Description A high port to high port connection attempt is made to this IP address from 'Malware2.dll'. No domain is associated with the IP address. 186.169.2.237 Ports * 65292 TCP Whois inetnum: 186.168/15 status: allocated aut-num: N/A owner: COLOMBIA TELECOMUNICACIONES S.A. ESP ownerid: CO-CTSE-LACNIC responsible: Administradores Internet address: Transversal 60, 114, A 55 address: N - BOGOTA - Cu country: CO phone: +57 1 5339833 [] owner-c: CTE7 tech-c: CTE7 abuse-c: CTE7 inetrev: 186.169/16 nserver: DNS5.TELECOM.COM.CO nsstat: 20171220 AA nslastaa: 20171220 nserver: DNS.TELECOM.COM.CO nsstat: 20171220 AA nslastaa: 20171220 created: 20110404 changed: 20141111 nic-hdl: CTE7 person: Grupo de Administradores Internet e-mail: admin.internet () TELECOM COM CO address: Transversal, 60, 114 A, 55 address: 571111 - BOGOTA DC - CU country: CO phone: +57 1 7050000 [71360] created: 20140220 changed: 20140220 Relationships 186.169.2.237 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 186.169.2.237 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 Description A high port to high port connection attempt is made to this IP address from 'Malware2.dll'. No domain is associated with the IP address. 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 Tags trojan Details Name 42682D4A78FE5C2EDA988185A344637D Name 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 Size 346624 bytes Type PE32+ executable (DLL) (console) x86-64, for MS Windows MD5 42682d4a78fe5c2eda988185a344637d SHA1 4975de2be0a1f7202037f5a504d738fe512191b7 SHA256 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 SHA512 213e4a0afbfac0bd884ab262ac87aee7d9a175cff56ba11aa4c75a4feb6a96c5e4e2c26adbe765f637c783df7552a56e4781a3b17be5fda2cf7894e58eb873ec ssdeep 6144:nCgsFAkxS1rrtZQXTip12P04nTnvze6lxjWV346vze6lpjWV34Evze6lSjWV34a7:nCgsukxS1vtZ+5nvze6lxjWV346vze6N Entropy 6.102810 Antivirus ESET a variant of Win64/NukeSped.T trojan Yara Rules hidden_cobra_consolidated.yara rule crypt_constants_2 { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $ = {efcdab90} $ = {558426fe} $ = {7856b4c2} condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) == 0x4550) and all of them } hidden_cobra_consolidated.yara rule lsfr_constants { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $ = {efcdab90} $ = {558426fe} $ = {7856b4c2} condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) == 0x4550) and all of them } hidden_cobra_consolidated.yara rule polarSSL_servernames { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $polarSSL = "fjiejffndxklfsdkfjsaadiepwn" $sn1 = "www.google.com" $sn2 = "www.naver.com" condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) -- 0x4550) and ($polarSSL and 1 of ($sn*)) } ssdeep Matches No matches found. PE Metadata Compile Date 2017-06-06 11:24:44-04:00 Import Hash e395fbfa0104d0173b3c4fdd3debdceb Company Name Kamsky Co,.Ltd File Description Vote_Controller Internal Name MDL_170329_x86_V06Lv3 Legal Copyright Copyright \u24d2 2017 Original Filename Vote_Controller Product Name Kamsky ColdFear Product Version 17, 0, 0, 0 PE Sections MD5 Name Raw Size Entropy 40d66d1a2f846d7c3bf291c604c9fca3 header 1024 2.628651 d061ffec6721133c433386c96520bc55 .text 284160 5.999734 cbbc6550dcbdcaf012bdbf758a377779 .rdata 38912 5.789426 c83bcaab05056d5b84fc609f41eed210 .data 7680 3.105496 b9fc36206883aa1902566b5d01c27473 .pdata 8704 5.319307 1c1d46056b4cb4627a5f92112b7e09f7 .rsrc 4096 5.608168 3baedaa3d6b6d6dc9fb0ec4f5c3b007c .reloc 2048 2.331154 Relationships 4a74a9fd40... Connected_To 21.252.107.198 4a74a9fd40... Connected_To 70.224.36.194 4a74a9fd40... Connected_To 113.114.117.122 4a74a9fd40... Connected_To 47.206.4.145 4a74a9fd40... Connected_To 84.49.242.125 4a74a9fd40... Connected_To 26.165.218.44 4a74a9fd40... Connected_To 137.139.135.151 4a74a9fd40... Connected_To 97.90.44.200 4a74a9fd40... Connected_To 128.200.115.228 4a74a9fd40... Connected_To 186.169.2.237 Description This artifact is a malicious 64bit Windows dynamic library called 'Vote_Controller.dll'. The file shares similar functionality with 'rdpproto.dll' above, and attempts to connect to the same ten IP addresses. 42682D4A78FE5C2EDA988185A344637D also contains the same public SSL certificate as many of the artifacts above. The file contains the following notable strings: ---Begin Notable Strings--- CompanyName Kamsky Co, .Ltd FileDescription Vote_Controller FileVersion 49, 0, 0, 0 InternalName MDL_170329_x86_V06Lv3 LegalCopyright Copyright 2017 LegalTrademarks OriginalFileName Vote_Controller PrivateBuild ProductName Kamsky ColdFear ProductVersion 17, 0, 0, 0 ---End Notable Strings--- 83228075a604e955d59edc760e4c4ed16eedabfc8f6ac291cf21b4fcbcd1f70a Details Name 3021B9EF74c&BDDF59656A035F94FD08 Name 83228075a604e955d59edc760e4c4ed16eedabfc8f6ac291cf21b4fcbcd1f70a Size 245760 bytes Type PE32+ executable (DLL) (console) x86-64, for MS Windows MD5 3021b9ef74c7bddf59656a035f94fd08 SHA1 05ad5f346d0282e43360965373eb2a8d39735137 SHA256 83228075a604e955d59edc760e4c4ed16eedabfc8f6ac291cf21b4fcbcd1f70a SHA512 f8fcc5ed34b7bf144fc708d01d9685f0cb2e678c173d014987d6ecbf4a7c3ed539452819237173a2ab14609a913cf46c3bd618cffe7b5990c63cfe805a7144ff ssdeep 6144:4+ZmN/ix9bd+Rvze6lxjWV346vze6lpjWV34Evze6lSjWV34avze6lkjWV34z5FT:4+ZmN/ix9b8Rvze6lxjWV346vze6lpjn Entropy 5.933390 Antivirus No matches found. Yara Rules hidden_cobra_consolidated.yara rule crypt_constants_2 { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $ = {efcdab90} $ = {558426fe} $ = {7856b4c2} condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) == 0x4550) and all of them } hidden_cobra_consolidated.yara rule lsfr_constants { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $ = {efcdab90} $ = {558426fe} $ = {7856b4c2} condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) == 0x4550) and all of them } hidden_cobra_consolidated.yara rule polarSSL_servernames { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $polarSSL = "fjiejffndxklfsdkfjsaadiepwn" $sn1 = "www.google.com" $sn2 = "www.naver.com" condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) -- 0x4550) and ($polarSSL and 1 of ($sn*)) } ssdeep Matches No matches found. PE Metadata Compile Date 2017-05-16 02:44:21-04:00 Import Hash ca767ccbffbed559cbe77c923e3af1f8 Company Name Kamsky Co,.Ltd File Description Vote_Controller Internal Name MDL_170329_x86_V06Lv3 Legal Copyright Copyright \u24d2 2017 Original Filename Vote_Controller Product Name Kamsky ColdFear Product Version 17, 0, 0, 0 PE Sections MD5 Name Raw Size Entropy 83ec15e3cf335f784144db4208b328c9 header 1024 2.790421 036c57e89ea3a6afa819c242c5816b70 .text 206848 5.688491 4812d2f39e9a8ae569370d423ba31344 .rdata 26112 6.000116 cb41e8f63b7c22c401a0634cb4fe1909 .data 2048 4.748331 3cc7651747904bfe94ed18f44354a706 .pdata 5120 4.962073 9e92c54604ea67e76210c3c914e9608c .rsrc 4096 5.606351 71dcfb1ec7257ee58dcc20cafb0be691 .reloc 512 0.673424 Relationships 83228075a6... Connected_To 112.175.92.57 Description This artifact is 64bit Windows dynamic library file which shares many of the same characteristics and name (Vote_Controller.dll) as 42682D4A78FE5C2EDA988185A344637D above. When this library is loaded it will look for the file 'udbcgiut.dat' in C:\WINDOWS. If 'udbcgiut.dat' is not found, the file will attempt connections to the same ten IP addresses described under 'rdpproto.dll' above. One notable difference with this variant is that it uses the Windows Management Instrumentation (WMI) process to recompile the Managed Object Format (MOF) files in the WMI repository. At runtime, the malware will enumerate the drivers located in the registry at HKLM\Software\WBEM\WDM. These files are then recompiled by invoking wmiprvse.exe through svchost.exe: "C:\Windows\system32\wbem\wmiprvse.exe -Embedding". MOF files are written in a SQL-like language and are run (compiled) by the operating system when a predetermined event takes place. Recent malware variants have been observed modifying the MOF files within the system registry to run specific commands and create persistency on the system. Of note, the paravirtual SCSI driver for VMWare Tools is also located in HKLM\Software\WBEM\WDM within a virtual image. When this driver is recompiled by the malware, VMWare Tools no longer works. It cannot be determined if this is an intentional characteristic of the malware to hinder analysis, or simply a symptom of the method used to establish persistence. 70034b33f59c6698403293cdc28676c7daa8c49031089efa6eefce41e22dccb3 Tags trojan Details Name 61E3571B8D9B2E9CCFADC3DDE10FB6E1 Size 258052 bytes Type PE32 executable (GUI) Intel 80386, for MS Windows MD5 61e3571b8d9b2e9ccfadc3dde10fb6e1 SHA1 55daa1fca210ebf66b1a1d2db1aa3373b06da680 SHA256 70034b33f59c6698403293cdc28676c7daa8c49031089efa6eefce41e22dccb3 SHA512 235f7b920f54c4d316386cbf6cc14db1929029e8053270e730be15acc8e9f333231d2d984681bea26013a1d1cf4670528ba0989337be13ad4ada3eeba33bdfe8 ssdeep 6144:d71TKN7LBHvS+bujAfrsxwkm1Ka5l7gTtJUGx:dxKHPuj8WR0K6VgTtZx Entropy 7.829590 Antivirus BitDefender Dropped:Trojan.GenericKD.30867638 ESET a variant of Win32/NukeSped.AI trojan Emsisoft Dropped:Trojan.GenericKD.30867638 (B) Yara Rules hidden_cobra_consolidated.yara rule crypt_constants_2 { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $ = {efcdab90} $ = {558426fe} $ = {7856b4c2} condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) == 0x4550) and all of them } hidden_cobra_consolidated.yara rule lsfr_constants { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $ = {efcdab90} $ = {558426fe} $ = {7856b4c2} condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) == 0x4550) and all of them } ssdeep Matches No matches found. PE Metadata Compile Date 2016-08-23 00:19:59-04:00 Import Hash 8e253f83371d82907ff72f57257e3810 PE Sections MD5 Name Raw Size Entropy 84f39a6860555231d60a55c72d07bc5e header 4096 0.586304 649c24790b60bda1cf2a85516bfc7fa0 .text 24576 5.983290 fbd6ca444ef8c0667aed75820cc99dce .rdata 4096 3.520964 0ecb4bcb0a1ef1bf8ea4157fabdd7357 .data 4096 3.988157 Packers/Compilers/Cryptors Installer VISE Custom Relationships 70034b33f5... Dropped cd5ff67ff773cc60c98c35f9e9d514b597cbd148789547ba152ba67bfc0fec8f 70034b33f5... Dropped 70902623c9cd0cccc8513850072b70732d02c266c7b7e96d2d5b2ed4f5edc289 70034b33f5... Dropped 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7 70034b33f5... Connected_To 81.94.192.147 70034b33f5... Connected_To 112.175.92.57 70034b33f5... Connected_To 181.39.135.126 70034b33f5... Connected_To 197.211.212.59 70034b33f5... Related_To 70902623c9cd0cccc8513850072b70732d02c266c7b7e96d2d5b2ed4f5edc289 Description This artifact is a malicious PE32 executable. When executed, the artifact sets up the service, 'Network UDP Trace Management Service'. To set up the service, the program drops a dynamic library, 'UDPTrcSvc.dll' into the %System32% directory. Next, the following registry keys are added: ---Begin Registry Keys--- HKLM\SYSTEM\CurrentControlSet\services\UDPTrcSvc Name: Type Value: 20 HKLM\SYSTEM\CurrentControlSet\services\UDPTrcSvc Name: Start Value: 02 HKLM\SYSTEM\CurrentControlSet\services\UDPTrcSvc Name: ImagePath Value: "%SystemRoot%\System32\svchost.exe -k mdnetuse" HKLM\SYSTEM\CurrentControlSet\services\UDPTrcSvc Name: DisplayName Value: "Network UDP Trace Management Service" HKLM\SYSTEM\CurrentControlSet\services\UDPTrcSvc Name: ObjectName Value: "LocalSystem" HKLM\SYSTEM\CurrentControlSet\services\UDPTrcSvc\Parameters Name: ServiceDll Value: "%SystemRoot%\System32\svchost.exe -k mdnetuse" HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Svchost\mdnetuse ---End Registry Keys--- The service is started by invoking svchost.exe. After writing 'UDPTrcSvd.dll' to disk, the program drops two additional files. Similar to 5C3898AC7670DA30CF0B22075F3E8ED6 above, the program writes the file 'udbcgiut.dat' to the victim's profile at %AppData/Local/Temp%. A second file is written to the victim's profile in the %AppData/Local/VirtualStore/Windows% directory and identified as 'MSDFMAPI.INI'. 'MSDFMAPI.INI' is also written to C:\WINDOWS. More information on the content of these files is below. 61E3571B8D9B2E9CCFADC3DDE10FB6E1 attempts the same outbound connections as 5C3898AC7670DA30CF0B22075F3E8ED6, however the file does not contain any of the public SSL certificates referenced above. cd5ff67ff773cc60c98c35f9e9d514b597cbd148789547ba152ba67bfc0fec8f Tags backdoortrojan Details Name UDPTrcSvc.dll Size 221184 bytes Type PE32 executable (DLL) (GUI) Intel 80386, for MS Windows MD5 0893e206274cb98189d51a284c2a8c83 SHA1 d1f4cf4250e7ba186c1d0c6d8876f5a644f457a4 SHA256 cd5ff67ff773cc60c98c35f9e9d514b597cbd148789547ba152ba67bfc0fec8f SHA512 8042356ff8dc69fa84f2de10a4c34685c3ffa798d5520382d4fbcdcb43ae17e403a208be9891cca6cf2bc297f767229a57f746ca834f6b79056a0ff1202941cf ssdeep 3072:WsyjTzEvLFOL8AqCiueLt1VFu9+zcSywy0mcj90nSJ5NatCmtWwNQLK:W/zEvLFOLdq9uebdSwHN9n5wtkwNwK Entropy 6.359677 Antivirus Ahnlab Backdoor/Win32.Akdoor Antiy Trojan/Win32.AGeneric Avira TR/NukeSped.davct BitDefender Trojan.GenericKD.30867638 ESET Win32/NukeSped.AI trojan Emsisoft Trojan.GenericKD.30867638 (B) Ikarus Trojan.Win32.NukeSped K7 Trojan ( 005329311 ) NANOAV Trojan.Win32.NukeSped.fcodob Systweak malware.gen-ra TrendMicro TROJ_FR.8F37E76D TrendMicro House Call TROJ_FR.8F37E76D VirusBlokAda Trojan.Tiggre Zillya! Trojan.NukeSped.Win32.73 Yara Rules hidden_cobra_consolidated.yara rule crypt_constants_2 { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $ = {efcdab90} $ = {558426fe} $ = {7856b4c2} condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) == 0x4550) and all of them } hidden_cobra_consolidated.yara rule lsfr_constants { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $ = {efcdab90} $ = {558426fe} $ = {7856b4c2} condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) == 0x4550) and all of them } hidden_cobra_consolidated.yara rule polarSSL_servernames { meta: Author="NCCIC trusted 3rd party" Incident="10135536" Date = "2018/04/19" category = "hidden_cobra" family = "n/a" description = "n/a" strings: $polarSSL = "fjiejffndxklfsdkfjsaadiepwn" $sn1 = "www.google.com" $sn2 = "www.naver.com" condition: (uint16(0) == 0x5A4D and uint16(uint32(0x3c)) -- 0x4550) and ($polarSSL and 1 of ($sn*)) } ssdeep Matches No matches found. PE Metadata Compile Date 2016-08-23 00:23:04-04:00 Import Hash 30d3466536de2b423897a3c8992ef999 PE Sections MD5 Name Raw Size Entropy d37b95aa17fa132415b37ec777f439ff header 4096 0.709908 badbc93c35554aec904ab0c34f05fbe0 .text 180224 6.295472 64f7a9cafdad34003aba4547bba0e25b .rdata 16384 6.372911 c792eb0c57577f4f3649775cbf32b253 .data 12288 3.996008 8791f715ae89ffe2c7d832c1be821edc .reloc 8192 5.154376 Relationships cd5ff67ff7... Dropped_By 70034b33f59c6698403293cdc28676c7daa8c49031089efa6eefce41e22dccb3 Description This artifact is a malicious 32bit Windows dynamic library. 'UDPTrcSvc.dll' is identified as the 'Network UDP Trace Management Service'. The following description is provided: ---Begin Service Description--- Network UDP Trace Management Service Hosts TourSvc Tracing. If this service is stopped, notifications of network trace will no longer function and there might not be access to service functions. If this service is disabled, notifications of and monitoring to network state will no longer function. ---End Service Description--- The service is invoked with the command, 'C:\Windows\System32\svchost.exe -k mdnetuse'. When the service is run a modification to the system firewall is attempted, 'cmd.exe /c netsh firewall add portopening TCP 0 "adp"'. Unlike many of the files listed above that use a public certificate from naver.com, 'UDPTrcSvc.dll' uses a public SSL certificate from google.com. 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7 Tags trojan Details Name MSDFMAPI.INI Size 2 bytes Type data MD5 c4103f122d27677c9db144cae1394a66 SHA1 1489f923c4dca729178b3e3233458550d8dddf29 SHA256 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7 SHA512 5ea71dc6d0b4f57bf39aadd07c208c35f06cd2bac5fde210397f70de11d439c62ec1cdf3183758865fd387fcea0bada2f6c37a4a17851dd1d78fefe6f204ee54 ssdeep 3:: Entropy 0.000000 Antivirus NetGate Trojan.Win32.Malware Yara Rules No matches found. ssdeep Matches 100 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479 Relationships 96a296d224... Dropped_By 70034b33f59c6698403293cdc28676c7daa8c49031089efa6eefce41e22dccb3 96a296d224... Dropped_By 2151c1977b4555a1761c12f151969f8e853e26c396fa1a7b74ccbaf3a48f4525 Description 'MSDFMAPI.INI' is written to C:\WINDOWS and to %UserProfile\AppData\Local\VirtualStore\Windows%. During analysis, two NULL characters were written to the file. The purpose of the file has not been determined. d77fdabe17cdba62a8e728cbe6c740e2c2e541072501f77988674e07a05dfb39 Details Name F8D26F2B8DD2AC4889597E1F2FD1F248 Name d77fdabe17cdba62a8e728cbe6c740e2c2e541072501f77988674e07a05dfb39 Size 456241 bytes Type data MD5 f8d26f2b8dd2ac4889597e1f2fd1f248 SHA1 dd132f76a4aff9862923d6a10e54dca26f26b1b4 SHA256 d77fdabe17cdba62a8e728cbe6c740e2c2e541072501f77988674e07a05dfb39 SHA512 34f8d10ebcab6f10c5140e94cf858761e9fa2e075db971b8e49c7334e1d55237f844ed6cf8ce735e984203f58d6b5032813b55e29a59af4bfff3853b1d07bc44 ssdeep 12288:MG31DF/ubokxmgF8JsVusikiWxdj3tIQLYe:NlI0UV0ou1kiWvm4Ye Entropy 7.999350 Antivirus No matches found. Yara Rules No matches found. ssdeep Matches No matches found. Description This artifact contains a similar public SSL certificate from naver.com, similar to many of the files above. The payload of the file appears to be encoded with a password or key. No context was provided with the file's submission. Relationship Summary 2151c1977b... Connected_To 81.94.192.147 2151c1977b... Connected_To 112.175.92.57 2151c1977b... Related_To 181.39.135.126 2151c1977b... Related_To 197.211.212.59 2151c1977b... Related_To 70902623c9cd0cccc8513850072b70732d02c266c7b7e96d2d5b2ed4f5edc289 2151c1977b... Dropped 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7 197.211.212.59 Related_To 2151c1977b4555a1761c12f151969f8e853e26c396fa1a7b74ccbaf3a48f4525 197.211.212.59 Connected_From ddea408e178f0412ae78ff5d5adf2439251f68cad4fd853ee466a3c74649642d 197.211.212.59 Connected_From 70034b33f59c6698403293cdc28676c7daa8c49031089efa6eefce41e22dccb3 181.39.135.126 Related_To 2151c1977b4555a1761c12f151969f8e853e26c396fa1a7b74ccbaf3a48f4525 181.39.135.126 Connected_From ddea408e178f0412ae78ff5d5adf2439251f68cad4fd853ee466a3c74649642d 181.39.135.126 Connected_From 70034b33f59c6698403293cdc28676c7daa8c49031089efa6eefce41e22dccb3 112.175.92.57 Connected_From 2151c1977b4555a1761c12f151969f8e853e26c396fa1a7b74ccbaf3a48f4525 112.175.92.57 Connected_From ddea408e178f0412ae78ff5d5adf2439251f68cad4fd853ee466a3c74649642d 112.175.92.57 Connected_From 70034b33f59c6698403293cdc28676c7daa8c49031089efa6eefce41e22dccb3 112.175.92.57 Connected_From 83228075a604e955d59edc760e4c4ed16eedabfc8f6ac291cf21b4fcbcd1f70a 81.94.192.147 Connected_From 2151c1977b4555a1761c12f151969f8e853e26c396fa1a7b74ccbaf3a48f4525 81.94.192.147 Connected_From ddea408e178f0412ae78ff5d5adf2439251f68cad4fd853ee466a3c74649642d 81.94.192.147 Connected_From 70034b33f59c6698403293cdc28676c7daa8c49031089efa6eefce41e22dccb3 70902623c9... Dropped_By 70034b33f59c6698403293cdc28676c7daa8c49031089efa6eefce41e22dccb3 70902623c9... Related_To ddea408e178f0412ae78ff5d5adf2439251f68cad4fd853ee466a3c74649642d 70902623c9... Related_To 2151c1977b4555a1761c12f151969f8e853e26c396fa1a7b74ccbaf3a48f4525 70902623c9... Related_To 70034b33f59c6698403293cdc28676c7daa8c49031089efa6eefce41e22dccb3 70902623c9... Related_To 12480585e08855109c5972e85d99cda7701fe992bc1754f1a0736f1eebcb004d ddea408e17... Connected_To 81.94.192.147 ddea408e17... Connected_To 112.175.92.57 ddea408e17... Connected_To 181.39.135.126 ddea408e17... Connected_To 197.211.212.59 ddea408e17... Related_To 70902623c9cd0cccc8513850072b70732d02c266c7b7e96d2d5b2ed4f5edc289 ddea408e17... Connected_To 81.94.192.10 81.94.192.10 Connected_From ddea408e178f0412ae78ff5d5adf2439251f68cad4fd853ee466a3c74649642d 12480585e0... Related_To 70902623c9cd0cccc8513850072b70732d02c266c7b7e96d2d5b2ed4f5edc289 12480585e0... Dropped 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 49757cf856... Dropped_By 12480585e08855109c5972e85d99cda7701fe992bc1754f1a0736f1eebcb004d 49757cf856... Connected_To 21.252.107.198 49757cf856... Connected_To 70.224.36.194 49757cf856... Connected_To 113.114.117.122 49757cf856... Connected_To 47.206.4.145 49757cf856... Connected_To 84.49.242.125 49757cf856... Connected_To 26.165.218.44 49757cf856... Connected_To 137.139.135.151 49757cf856... Connected_To 97.90.44.200 49757cf856... Connected_To 128.200.115.228 49757cf856... Connected_To 186.169.2.237 21.252.107.198 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 21.252.107.198 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 70.224.36.194 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 70.224.36.194 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 113.114.117.122 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 113.114.117.122 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 47.206.4.145 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 47.206.4.145 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 84.49.242.125 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 84.49.242.125 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 26.165.218.44 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 26.165.218.44 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 137.139.135.151 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 137.139.135.151 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 97.90.44.200 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 97.90.44.200 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 128.200.115.228 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 128.200.115.228 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 186.169.2.237 Connected_From 4a74a9fd40b63218f7504f806fce71dffefc1b1d6ca4bbaadd720b6a89d47761 186.169.2.237 Connected_From 49757cf85657757704656c079785c072bbc233cab942418d99d1f63d43f28359 4a74a9fd40... Connected_To 21.252.107.198 4a74a9fd40... Connected_To 70.224.36.194 4a74a9fd40... Connected_To 113.114.117.122 4a74a9fd40... Connected_To 47.206.4.145 4a74a9fd40... Connected_To 84.49.242.125 4a74a9fd40... Connected_To 26.165.218.44 4a74a9fd40... Connected_To 137.139.135.151 4a74a9fd40... Connected_To 97.90.44.200 4a74a9fd40... Connected_To 128.200.115.228 4a74a9fd40... Connected_To 186.169.2.237 83228075a6... Connected_To 112.175.92.57 70034b33f5... Dropped cd5ff67ff773cc60c98c35f9e9d514b597cbd148789547ba152ba67bfc0fec8f 70034b33f5... Dropped 70902623c9cd0cccc8513850072b70732d02c266c7b7e96d2d5b2ed4f5edc289 70034b33f5... Dropped 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7 70034b33f5... Connected_To 81.94.192.147 70034b33f5... Connected_To 112.175.92.57 70034b33f5... Connected_To 181.39.135.126 70034b33f5... Connected_To 197.211.212.59 70034b33f5... Related_To 70902623c9cd0cccc8513850072b70732d02c266c7b7e96d2d5b2ed4f5edc289 cd5ff67ff7... Dropped_By 70034b33f59c6698403293cdc28676c7daa8c49031089efa6eefce41e22dccb3 96a296d224... Dropped_By 70034b33f59c6698403293cdc28676c7daa8c49031089efa6eefce41e22dccb3 96a296d224... Dropped_By 2151c1977b4555a1761c12f151969f8e853e26c396fa1a7b74ccbaf3a48f4525 Recommendations CISA would like to remind users and administrators to consider using the following best practices to strengthen the security posture of their organization's systems. Any configuration changes should be reviewed by system owners and administrators prior to implementation to avoid unwanted impacts. * Maintain up-to-date antivirus signatures and engines. * Keep operating system patches up-to-date. * Disable File and Printer sharing services. If these services are required, use strong passwords or Active Directory authentication. * Restrict users' ability (permissions) to install and run unwanted software applications. Do not add users to the local administrators group unless required. * Enforce a strong password policy and implement regular password changes. * Exercise caution when opening e-mail attachments even if the attachment is expected and the sender appears to be known. * Enable a personal firewall on agency workstations, configured to deny unsolicited connection requests. * Disable unnecessary services on agency workstations and servers. * Scan for and remove suspicious e-mail attachments; ensure the scanned attachment is its "true file type" (i.e., the extension matches the file header). * Monitor users' web browsing habits; restrict access to sites with unfavorable content. * Exercise caution when using removable media (e.g., USB thumbdrives, external drives, CDs, etc.). * Scan all software downloaded from the Internet prior to executing. * Maintain situational awareness of the latest threats and implement appropriate ACLs. Additional information on malware incident prevention and handling can be found in NIST's Special Publication 800-83, *Guide to Malware Incident Prevention & Handling for Desktops and Laptops.* Contact Information * 1-888-282-0870 * NCCICCustomerService () us-cert gov [ https://www.us-cert.govmailto:NCCICCustomerService () us-cert gov ] (UNCLASS) * us-cert () dhs sgov gov [ https://www.us-cert.govmailto:us-cert () dhs sgov gov ] (SIPRNET) * us-cert () dhs ic gov [ https://www.us-cert.govmailto:us-cert () dhs ic gov ] (JWICS) CISA continuously strives to improve its products and services. You can help by answering a very short series of questions about this product at the following URL: https://us-cert.gov/forms/feedback/ Document FAQ *What is a MIFR?* A Malware Initial Findings Report (MIFR) is intended to provide organizations with malware analysis in a timely manner. In most instances this report will provide initial indicators for computer and network defense. To request additional analysis, please contact US-CERT and provide information regarding the level of desired analysis. *What is a MAR?* A Malware Analysis Report (MAR) is intended to provide organizations with more detailed malware analysis acquired via manual reverse engineering. To request additional analysis, please contact US-CERT and provide information regarding the level of desired analysis. *Can I edit this document?* This document is not to be edited in any way by recipients. All comments or questions related to this document should be directed to CISA at 1-888-282-0870 or soc () us-cert gov [ https://www.us-cert.govmailto:soc () us-cert gov ]. *Can I submit malware to CISA?* Malware samples can be submitted via three methods: * Web: https://malware.us-cert.gov [ https://malware.us-cert.gov/ ] * E-Mail: submit () malware us-cert gov [ https://www.us-cert.govmailto:submit () malware us-cert gov ] * FTP: ftp.malware.us-cert.gov (anonymous) CISA encourages you to report any suspicious activity, including cybersecurity incidents, possible malicious code, software vulnerabilities, and phishing-related scams. Reporting forms can be found on CISA/US-CERT's homepage at www.us-cert.gov [ http://www.us-cert.gov/ ]. Revisions * April 10, 2019: Initial version ________________________________________________________________________ This product is provided subject to this Notification [ http://www.us-cert.gov/privacy/notification ] and this Privacy & Use [ http://www.us-cert.gov/privacy/ ] policy. ________________________________________________________________________ OTHER RESOURCES: About Us [ https://www.us-cert.gov/ccubedvp ] | Getting Started [ https://www.us-cert.gov/ccubedvp ] | Cybersecurity Framework [ https://www.us-cert.gov/ccubedvp/cybersecurity-framework ]|Assessments [ https://www.us-cert.gov/ccubedvp/assessments ]| Events and Media [ https://www.us-cert.gov/ccubedvp/press ]|Privacy [ http://www.us-cert.gov/privacy ] STAY CONNECTED: Sign up for email updates [ http://public.govdelivery.com/accounts/USDHSUSCERT/subscriber/new ]
Current thread:
- AR19-100A: MAR-10135536-8 – North Korean Trojan: HOPLIGHT US-CERT (Apr 10)