darkcomet | f1a576bf1379bcf8d1cccf104d65740a4acbbdf23d96cc35da45af3b34f5bb4b

General

Target

f1a576bf1379bcf8d1cccf104d65740a4acbbdf23d96cc35da45af3b34f5bb4b.exe
Size

476KB
MD5

58f88a94ccdbb791f2897513fd3001d1
SHA1

76af5d2870c74bffca24b870fcb57d1339bcb464
SHA256

f1a576bf1379bcf8d1cccf104d65740a4acbbdf23d96cc35da45af3b34f5bb4b
SHA512

5fdb9ae2491c37778c8409d8823b636f80393087e6a11564ad4d31c6207ff54fbcea4eec78875e4dedeb5b4c29b981304ff49d5814195425f2155b601b193423
SSDEEP

12288:4roiftmwGUlVgkwQ2kNHGVGdlm8EAUUJ32U8RBB:4rofwjl1vcodlHEO+nB

Score

10^/10

darkcomet persistence rat trojan

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

Executes dropped EXE 2 IoCs

pid	Process
1872	winini.exe
584	winhost.exe

Loads dropped DLL 3 IoCs

pid	Process
1376	f1a576bf1379bcf8d1cccf104d65740a4acbbdf23d96cc35da45af3b34f5bb4b.exe
1376	f1a576bf1379bcf8d1cccf104d65740a4acbbdf23d96cc35da45af3b34f5bb4b.exe
1872	winini.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Live = "C:\\Users\\Admin\\AppData\\Local\\Temp\\winini.exe"	winini.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1872 set thread context of 584	1872	winini.exe	27

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeDebugPrivilege	1872	winini.exe
Token: SeIncreaseQuotaPrivilege	584	winhost.exe
Token: SeSecurityPrivilege	584	winhost.exe
Token: SeTakeOwnershipPrivilege	584	winhost.exe
Token: SeLoadDriverPrivilege	584	winhost.exe
Token: SeSystemProfilePrivilege	584	winhost.exe
Token: SeSystemtimePrivilege	584	winhost.exe
Token: SeProfSingleProcessPrivilege	584	winhost.exe
Token: SeIncBasePriorityPrivilege	584	winhost.exe
Token: SeCreatePagefilePrivilege	584	winhost.exe
Token: SeBackupPrivilege	584	winhost.exe
Token: SeRestorePrivilege	584	winhost.exe
Token: SeShutdownPrivilege	584	winhost.exe
Token: SeDebugPrivilege	584	winhost.exe
Token: SeSystemEnvironmentPrivilege	584	winhost.exe
Token: SeChangeNotifyPrivilege	584	winhost.exe
Token: SeRemoteShutdownPrivilege	584	winhost.exe
Token: SeUndockPrivilege	584	winhost.exe
Token: SeManageVolumePrivilege	584	winhost.exe
Token: SeImpersonatePrivilege	584	winhost.exe
Token: SeCreateGlobalPrivilege	584	winhost.exe
Token: 33	584	winhost.exe
Token: 34	584	winhost.exe
Token: 35	584	winhost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
584	winhost.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1376 wrote to memory of 1872	1376	f1a576bf1379bcf8d1cccf104d65740a4acbbdf23d96cc35da45af3b34f5bb4b.exe	26
PID 1376 wrote to memory of 1872	1376	f1a576bf1379bcf8d1cccf104d65740a4acbbdf23d96cc35da45af3b34f5bb4b.exe	26
PID 1376 wrote to memory of 1872	1376	f1a576bf1379bcf8d1cccf104d65740a4acbbdf23d96cc35da45af3b34f5bb4b.exe	26
PID 1376 wrote to memory of 1872	1376	f1a576bf1379bcf8d1cccf104d65740a4acbbdf23d96cc35da45af3b34f5bb4b.exe	26
PID 1872 wrote to memory of 584	1872	winini.exe	27
PID 1872 wrote to memory of 584	1872	winini.exe	27
PID 1872 wrote to memory of 584	1872	winini.exe	27
PID 1872 wrote to memory of 584	1872	winini.exe	27
PID 1872 wrote to memory of 584	1872	winini.exe	27
PID 1872 wrote to memory of 584	1872	winini.exe	27
PID 1872 wrote to memory of 584	1872	winini.exe	27
PID 1872 wrote to memory of 584	1872	winini.exe	27
PID 1872 wrote to memory of 584	1872	winini.exe	27
PID 1872 wrote to memory of 584	1872	winini.exe	27
PID 1872 wrote to memory of 584	1872	winini.exe	27
PID 1872 wrote to memory of 584	1872	winini.exe	27
PID 1872 wrote to memory of 584	1872	winini.exe	27

C:\Users\Admin\AppData\Local\Temp\f1a576bf1379bcf8d1cccf104d65740a4acbbdf23d96cc35da45af3b34f5bb4b.exe
"C:\Users\Admin\AppData\Local\Temp\f1a576bf1379bcf8d1cccf104d65740a4acbbdf23d96cc35da45af3b34f5bb4b.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1376
- C:\Users\Admin\AppData\Local\Temp\winini.exe
  "C:\Users\Admin\AppData\Local\Temp\winini.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1872
- - C:\Users\Admin\AppData\Local\Temp\winhost.exe
    C:\Users\Admin\AppData\Local\Temp\winhost.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:584

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\winhost.exe

Filesize
31KB

MD5
ed797d8dc2c92401985d162e42ffa450

SHA1
0f02fc517c7facc4baefde4fe9467fb6488ebabe

SHA256
b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

SHA512
e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

Download Submit
C:\Users\Admin\AppData\Local\Temp\winini.exe

Filesize
468KB

MD5
600de325e1cb62223602e10ca57b2fb5

SHA1
fef83ffca40657b2f2dacdc2ec9dd40e2067dfb0

SHA256
9368b4ed33f4111ac287bd41efb3104adccb0bf98e31121445d198a4f0553d49

SHA512
634d6c06d0951a61efc0fba7cc77280e6f0b78afaeda66469a939cc2f4098605a38a90043115ab9bc88dd7e6128cd8367900e90de1ba8b126850e044ef89f5c0

Download Submit
C:\Users\Admin\AppData\Local\Temp\winini.exe

Filesize
468KB

MD5
600de325e1cb62223602e10ca57b2fb5

SHA1
fef83ffca40657b2f2dacdc2ec9dd40e2067dfb0

SHA256
9368b4ed33f4111ac287bd41efb3104adccb0bf98e31121445d198a4f0553d49

SHA512
634d6c06d0951a61efc0fba7cc77280e6f0b78afaeda66469a939cc2f4098605a38a90043115ab9bc88dd7e6128cd8367900e90de1ba8b126850e044ef89f5c0

Download Submit
\Users\Admin\AppData\Local\Temp\winhost.exe

Filesize
31KB

MD5
ed797d8dc2c92401985d162e42ffa450

SHA1
0f02fc517c7facc4baefde4fe9467fb6488ebabe

SHA256
b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

SHA512
e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

Download Submit
\Users\Admin\AppData\Local\Temp\winini.exe

Filesize
468KB

MD5
600de325e1cb62223602e10ca57b2fb5

SHA1
fef83ffca40657b2f2dacdc2ec9dd40e2067dfb0

SHA256
9368b4ed33f4111ac287bd41efb3104adccb0bf98e31121445d198a4f0553d49

SHA512
634d6c06d0951a61efc0fba7cc77280e6f0b78afaeda66469a939cc2f4098605a38a90043115ab9bc88dd7e6128cd8367900e90de1ba8b126850e044ef89f5c0

Download Submit
\Users\Admin\AppData\Local\Temp\winini.exe

Filesize
468KB

MD5
600de325e1cb62223602e10ca57b2fb5

SHA1
fef83ffca40657b2f2dacdc2ec9dd40e2067dfb0

SHA256
9368b4ed33f4111ac287bd41efb3104adccb0bf98e31121445d198a4f0553d49

SHA512
634d6c06d0951a61efc0fba7cc77280e6f0b78afaeda66469a939cc2f4098605a38a90043115ab9bc88dd7e6128cd8367900e90de1ba8b126850e044ef89f5c0

Download Submit
memory/584-71-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/584-74-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/584-86-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/584-64-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/584-85-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/584-67-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/584-84-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/584-69-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/584-73-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/584-63-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/584-76-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/584-81-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/584-78-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/1376-54-0x0000000075091000-0x0000000075093000-memory.dmp

Filesize
8KB

Download
memory/1376-61-0x00000000745B0000-0x0000000074B5B000-memory.dmp

Filesize
5.7MB

Download
memory/1872-83-0x00000000745B0000-0x0000000074B5B000-memory.dmp

Filesize
5.7MB

Download
memory/1872-65-0x00000000745B0000-0x0000000074B5B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing