软件安装包伪装下的Kimsuky(APT-Q-2)窃密行动
2024-01-30 • Qianxin • Kimsuky (APT-Q-2) secret theft operation disguised as software installation package •
QiAnXin attributes a January 2024 intrusion set to Kimsuky/APT-Q-2 based on overlap with earlier Kimsuky malware and shared signing, packing, language, and victim-ID patterns. The activity used installers disguised as SGA Solutions products to drop normal setup files while running VMProtect-packed Go malware, including a one-shot stealer identified as TrollAgent and a related backdoor. TrollAgent collects configuration data, SSH and FileZilla directories, Microsoft Sticky Notes, browser data, screenshots, installed-program and system information, then encrypts and exfiltrates the results to C2 URLs such as ar.kostin.p-e.kr and ai.kostin.p-e.kr before deleting itself. The related backdoor persists as svchost.exe via a WindowsUpdate scheduled task and communicates with a compromised Korean domain over randomized POST parameters.
Indicators of Compromise
| Type | Value | First Seen | Last Seen |
|---|---|---|---|
| HASH | ff3718ae6bd59ad479e375c602a8181… | 2024-01-30 | 2024-07-15 |
| HASH | 61b8fbea8c0dfa337eb7ff978124ddf… | 2024-01-30 | 2024-07-15 |
| HASH | 2e0ffaab995f22b7684052e53b8c64b… | 2024-01-30 | 2024-07-15 |
| HASH | f8ab78e1db3a3cc3793f7680a90dc1d… | 2024-01-30 | 2024-07-15 |
| HASH | 955cb4f01eb18f0d259fcb962e36a33… | 2024-01-30 | 2024-07-15 |
| URL | http://qi.limsjo.p-e.kr/index.p… | 2024-01-30 | 2024-07-15 |
| URL | http://ol.negapa.p-e.kr/index.p… | 2024-01-30 | 2024-07-15 |
| URL | http://ai.negapa.p-e.kr/index.p… | 2024-01-30 | 2024-07-15 |
| URL | http://ar.kostin.p-e.kr/index.p… | 2024-01-30 | 2024-07-15 |
| DOMAIN | ai.negapa.p-e.kr | 2024-01-30 | 2024-07-15 |
| DOMAIN | ar.kostin.p-e.kr | 2024-01-30 | 2024-07-15 |
| DOMAIN | ol.negapa.p-e.kr | 2024-01-30 | 2024-07-15 |
| DOMAIN | qi.limsjo.p-e.kr | 2024-01-30 | 2024-07-15 |
| HASH | 6eebb5ed0d0b5553e40a7b1ad739589… | 2024-01-30 | 2024-03-25 |
| HASH | a8c24a3e54a4b323973f61630c92eca… | 2024-01-30 | 2024-03-25 |
| DOMAIN | ai.kostin.p-e.kr | 2024-01-30 | 2024-03-25 |
| DOMAIN | coolsystem.co.kr | 2024-01-30 | 2024-03-25 |
| DOMAIN | ai.limsjo.p-e.kr | 2024-01-30 | 2024-03-25 |
| HASH | a4b4b5518b377202e4415a064bcfd79… | 2024-01-30 | 2024-03-05 |
| HASH | 0dd9aa5b650f519a55c96bf0dee7316… | 2024-01-30 | 2024-03-05 |
| URL | http://ai.limsjo.p-e.kr/index.p… | 2024-01-30 | 2024-03-05 |
| URL | http://ai.kostin.p-e.kr/index.p… | 2024-01-30 | 2024-03-05 |
| URL | http://coolsystem.co.kr/admin/m… | 2024-01-30 | 2024-03-05 |
| HASH | 97df5304f53fec6a5d2d2bd75b9310a… | 2023-11-21 | 2024-03-05 |