ROPPING ANCHOR: FROM A TRICKBOT INFECTION TO THE DISCOVERY OF THE ANCHOR MALWARE

2019-12-11 • Cybereason •

https://www.cybereason.com/blog/dropping-anchor-from-a-trickbot-infection-to-the-discovery-of-the-anchor-malware

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Cybereason reported targeted campaigns against financial, manufacturing, and retail organizations in the United States and Europe that began with phishing and TrickBot infection before progressing into interactive intrusion activity. The phishing lure used a Google Docs link to deliver a signed TrickBot downloader disguised as a Microsoft Word document named like an annual bonus report, then injected TrickBot into svchost.exe. The attackers profiled infected hosts, contacted C2 infrastructure including TOR-related domains, stole browser and application credentials, and used Windows utilities and PowerShell for reconnaissance and lateral movement. On selected high-value targets, the activity deployed Anchor_DNS and a newly documented Anchor variant, backdoors described as tightly connected to TrickBot and used selectively. The excerpt does not provide DPRK attribution, so the supported finding is a TrickBot/Anchor intrusion pattern with potential outcomes including POS compromise, ransomware, or theft of sensitive financial data.

Indicators of Compromise

Type Value First Seen Last Seen
DOMAIN api.ipify.org 2019-12-11 2026-05-19
HASH 5f1ad1787106de9725005d8da33d815… 2019-12-11 2019-12-11
HASH 8385aa79c0e400d316ca4a418a02655… 2019-12-11 2019-12-11
HASH 55c60b5d13499341d72f5a34c632cfd9 2019-12-11 2019-12-11
HASH 6bf0900bbe9e98d2ba63f50aff91e5d… 2019-12-11 2019-12-11
HASH 3c26dd6817e143a4dd61ba134f03753… 2019-12-11 2019-12-11
HASH b02494ffc1dab60510e6caee3c54695… 2019-12-11 2019-12-11
HASH d4cb942aa18eff519dcbcae88a0a99fb 2019-12-11 2019-12-11
HASH 6e8516ca48318fb2904e2027b5350b26 2019-12-11 2019-12-11
HASH 5739549850fe635fc0ac5de81ce1fd4… 2019-12-11 2019-12-11
HASH 102eface9bdb62c88f708a56beac823… 2019-12-11 2019-12-11
HASH 2aa995b0a818fa730f176f261b23dab… 2019-12-11 2019-12-11
HASH e6d65e21a5b9e73a5626a2fdc9dbdd3… 2019-12-11 2019-12-11
HASH 9469f92e61d75e88ccc854ac6febd2d… 2019-12-11 2019-12-11
DOMAIN chishir.com 2019-12-11 2019-12-11
DOMAIN northracing.net 2019-12-11 2019-12-11
IPv4 23.95.97.59 2019-12-11 2019-12-11
IPv4 91.12.89.129 2019-12-11 2019-12-11
IPv4 199.217.115.53 2019-12-11 2019-12-11

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