darkcomet | 86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b

General

Target

86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.exe
Size

680KB
MD5

309d32bea39b4dd4682e423b6283e796
SHA1

446e0b72f5c00061b96eb95273e22ba25f97db3f
SHA256

86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b
SHA512

6142df0885423bac50f617f9a37583bc86ed63a09ba1418d71d27a470be9fcd9a0bfb97a13ca094113b8ed55e3383a90df9190c909fff06f31cdbdef78a16ac3
SSDEEP

12288:s2csGkJZXMHSX7G2To6oh5VaLxJtQfGoOUr6eUlzw24Bp+L1VpShzHp:sfVkJZgE75ur6bQfm182upwVpShzH

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 1 IoCs

pid	Process
928	chrome.exe

Loads dropped DLL 1 IoCs

pid	Process
1688	86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\Google updates = "C:\\Users\\Admin\\AppData\\Local\\Temp\\chrome.exe"	86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1688 set thread context of 928	1688	86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.exe	27

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeDebugPrivilege	1688	86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.exe
Token: SeIncreaseQuotaPrivilege	928	chrome.exe
Token: SeSecurityPrivilege	928	chrome.exe
Token: SeTakeOwnershipPrivilege	928	chrome.exe
Token: SeLoadDriverPrivilege	928	chrome.exe
Token: SeSystemProfilePrivilege	928	chrome.exe
Token: SeSystemtimePrivilege	928	chrome.exe
Token: SeProfSingleProcessPrivilege	928	chrome.exe
Token: SeIncBasePriorityPrivilege	928	chrome.exe
Token: SeCreatePagefilePrivilege	928	chrome.exe
Token: SeBackupPrivilege	928	chrome.exe
Token: SeRestorePrivilege	928	chrome.exe
Token: SeShutdownPrivilege	928	chrome.exe
Token: SeDebugPrivilege	928	chrome.exe
Token: SeSystemEnvironmentPrivilege	928	chrome.exe
Token: SeChangeNotifyPrivilege	928	chrome.exe
Token: SeRemoteShutdownPrivilege	928	chrome.exe
Token: SeUndockPrivilege	928	chrome.exe
Token: SeManageVolumePrivilege	928	chrome.exe
Token: SeImpersonatePrivilege	928	chrome.exe
Token: SeCreateGlobalPrivilege	928	chrome.exe
Token: 33	928	chrome.exe
Token: 34	928	chrome.exe
Token: 35	928	chrome.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
928	chrome.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 928	1688	86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.exe	27
PID 1688 wrote to memory of 928	1688	86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.exe	27
PID 1688 wrote to memory of 928	1688	86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.exe	27
PID 1688 wrote to memory of 928	1688	86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.exe	27
PID 1688 wrote to memory of 928	1688	86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.exe	27
PID 1688 wrote to memory of 928	1688	86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.exe	27
PID 1688 wrote to memory of 928	1688	86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.exe	27
PID 1688 wrote to memory of 928	1688	86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.exe	27
PID 1688 wrote to memory of 928	1688	86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.exe	27
PID 1688 wrote to memory of 928	1688	86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.exe	27
PID 1688 wrote to memory of 928	1688	86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.exe	27
PID 1688 wrote to memory of 928	1688	86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.exe	27
PID 1688 wrote to memory of 928	1688	86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.exe	27

C:\Users\Admin\AppData\Local\Temp\86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.exe
"C:\Users\Admin\AppData\Local\Temp\86acc9a0eea909458e2a6223845a55016404a3e7385cbdf90a5f67449c77655b.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Users\Admin\AppData\Local\Temp\chrome.exe
  C:\Users\Admin\AppData\Local\Temp\chrome.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:928

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
31KB

MD5
ed797d8dc2c92401985d162e42ffa450

SHA1
0f02fc517c7facc4baefde4fe9467fb6488ebabe

SHA256
b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

SHA512
e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

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

Filesize
31KB

MD5
ed797d8dc2c92401985d162e42ffa450

SHA1
0f02fc517c7facc4baefde4fe9467fb6488ebabe

SHA256
b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

SHA512
e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

Download Submit
memory/928-66-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/928-71-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/928-58-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/928-60-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/928-62-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/928-64-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/928-79-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/928-67-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/928-69-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/928-57-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/928-74-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/928-78-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/928-76-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/1688-77-0x00000000740B0000-0x000000007465B000-memory.dmp

Filesize
5.7MB

Download
memory/1688-55-0x00000000740B0000-0x000000007465B000-memory.dmp

Filesize
5.7MB

Download
memory/1688-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

Filesize
8KB

Download

Analysis

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