APT-C-55(Kimsuky)组织利用伪装安装包植入远控木马的攻击链分析
2026-09-10 • Qihoo360 • Analysis of APT-C-55 (Kimsuky) Attack Chain Using a Disguised Installer to Deploy a Remote Access Trojan •
Qihoo 360 attributes a multi-stage infection chain to Kimsuky (APT-C-55), beginning with a trojanized OrionQuests installer that drops a malicious LNK file. The LNK decrypts PowerShell that checks for analysis tools and virtual machines, profiles the host, and retrieves a disguised second-stage .NET payload. Persistence relies on a scheduled task masquerading as a Google Chrome update. The modular backdoor connects to 107.172.249.140 over TCP port 443 and supports encrypted delivery of additional plugins.
Indicators of Compromise
| Type | Value | First Seen | Last Seen |
|---|---|---|---|
| URL | http://38.180.204.13/unicorn/un… | 2026-09-10 | 2026-09-10 |
| URL | http://38.180.204.13/unicorn/mo… | 2026-09-10 | 2026-09-10 |
| URL | http://217.60.36.94/unicorn/mor… | 2026-09-10 | 2026-09-10 |
| IPv4 | 217.60.36.94 | 2026-09-10 | 2026-09-10 |
| URL | http://217.60.36.94/unicorn/uni… | 2026-09-10 | 2026-09-10 |
| HASH | ef738e7e28ea7705ddf9186d5a71005… | 2026-09-10 | 2026-09-10 |
| HASH | 877fb2b2d8800e7831f1912b3755062… | 2026-09-10 | 2026-09-10 |
| HASH | 65f9779a6a8b7f816c2a9d7cd8bebbd… | 2026-09-10 | 2026-09-10 |
| HASH | c379bb3edf9f73dfba0053e91bf5b6d… | 2026-09-10 | 2026-09-10 |
| IPv4 | 38.180.204.13 | 2026-07-21 | 2026-09-10 |
| IPv4 | 107.172.249.140 | 2026-07-21 | 2026-09-10 |
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Shares tags: APT-C-55, LNK • Same author: Qihoo360
Shares tags: APT-C-55, LNK • Same author: Qihoo360
Shares tags: APT-C-55, LNK • Same author: Qihoo360
Shares tags: APT-C-55, LNK • Same author: Qihoo360
2026-09-09 •
46% Match
#Kimsuky
#LNK
#GitHub
#LOTL
#T1082
#T1567.002
#T1140
#T1083
#T1204.002
#T1057
#T1053.005
#T1105
#T1016
#T1087.001
Shares tags: LNK, LOTL • Published within a week
Shares tag: APT-C-55 • Same author: Qihoo360