Hermit(隐士):针对朝鲜半岛的APT攻击活动披露

2018-12-20 • Tencent • Hermit: APT attack campaign targeting the Korean Peninsula disclosed •

https://s.tencent.com/research/report/613.html

Thumbnail for Hermit(隐士):针对朝鲜半岛的APT攻击活动披露

Tencent’s threat-intelligence report disclosed Hermit, a spear-phishing campaign against Korean Peninsula-related targets that the researchers linked to the same organization behind SYSCON/SANNY and KONNI activity. The malicious documents required macro execution and used certutil to download and decode a staged batch script from `filer2.1apps.com`, then selected x86 or x64 CAB payloads containing persistence logic, a UAC-bypass module, encrypted C2 configuration, and the BrowserUpdate.exe backdoor. The core payload decrypted shellcode, reconstructed and loaded a PE file in memory, connected to a C2 server, and supported directory listing, upload, download, file execution, process listing, and process termination. Tencent also described a second-stage hidden TeamViewer variant (`iiexplorer.exe`) used for remote control, linked the codebase to the older Babyface RAT source, and published hashes plus C2 `103.249.31.159:7777`.

Indicators of Compromise

Type Value First Seen Last Seen
HASH a25811b24b7f27a486c05c0a09ad992d 2018-12-20 2019-08-29
IPv4 103.249.31.159 2018-12-20 2019-08-29
HASH 1df5cd85693dc2ce2ba5f7f251785b0… 2018-12-20 2019-06-10
HASH 2b94c694a6279eaa08ce4a17fb848c8… 2018-12-20 2019-06-10
DOMAIN filer2.1apps.com 2018-12-20 2019-06-10
DOMAIN gmall.com 2018-09-06 2019-06-10
HASH 4b825d310a305728b7a57d9eb6731db… 2018-12-20 2018-12-20
HASH 036567c36aaaabefcd222456b536bff… 2018-12-20 2018-12-20
HASH dd9bb177732197539bdb9167fb3dd78… 2018-12-20 2018-12-20
HASH 7f7b32771da9760a9e233807196f086d 2018-12-20 2018-12-20
HASH 7090eb434f228705acd8d2da5e7c7899 2018-12-20 2018-12-20
HASH 65b09410f90a62323a1a7a8707aa31e… 2018-12-20 2018-12-20
HASH fcceef71738e1506c4524e3210f4b23d 2018-12-20 2018-12-20
HASH c9f0125b449dd44d112644901d787e3f 2018-12-20 2018-12-20
HASH 38b3045a69ff6339adec25822d4d8e25 2018-12-20 2018-12-20
EMAIL [email protected] 2018-12-20 2018-12-20
EMAIL [email protected] 2018-12-20 2018-12-20
URL http://www.pudn.com/Download/it… 2018-12-20 2018-12-20
URL http://filer2.1apps.com/1.txt 2018-12-20 2018-12-20

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