darkcomet | 30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
04/10/2022, 06:12

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General

Target
30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Size 825KB
Sample221004-gx614afcdp
SHA256 30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c
MD5 2cc680307934db679476001c2d42501a
SHA1 2285e76059caa519e497df60787fb12ddba47b28
SHA512 cec33f1e326782682721cad7c1f106ebeb83ba636b39d62f76971cd63f986b8da8326e29f6994ce047321d90c86e25f6e8950becc1e85bd668843afeb80042fd
SSDEEP 24576:+4qMHqSqV7zbRbJ1NMJwktXvIA0NC3Oh+FJD:+4q+7E9J1NMxt/IA0C3Oh+3D
MD5 SHA1 SHA512 SSDEEP

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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe

Executes dropped EXE 2 IoCs

pid	Process
4360	msdcsc.exe
4636	msdcsc.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4812 set thread context of 4868	4812	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe	82
PID 4360 set thread context of 4636	4360	msdcsc.exe	84

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 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeSecurityPrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeTakeOwnershipPrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeLoadDriverPrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeSystemProfilePrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeSystemtimePrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeProfSingleProcessPrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeIncBasePriorityPrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeCreatePagefilePrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeBackupPrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeRestorePrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeShutdownPrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeDebugPrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeSystemEnvironmentPrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeChangeNotifyPrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeRemoteShutdownPrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeUndockPrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeManageVolumePrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeImpersonatePrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeCreateGlobalPrivilege	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: 33	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: 34	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: 35	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: 36	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
Token: SeIncreaseQuotaPrivilege	4636	msdcsc.exe
Token: SeSecurityPrivilege	4636	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4636	msdcsc.exe
Token: SeLoadDriverPrivilege	4636	msdcsc.exe
Token: SeSystemProfilePrivilege	4636	msdcsc.exe
Token: SeSystemtimePrivilege	4636	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4636	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4636	msdcsc.exe
Token: SeCreatePagefilePrivilege	4636	msdcsc.exe
Token: SeBackupPrivilege	4636	msdcsc.exe
Token: SeRestorePrivilege	4636	msdcsc.exe
Token: SeShutdownPrivilege	4636	msdcsc.exe
Token: SeDebugPrivilege	4636	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4636	msdcsc.exe
Token: SeChangeNotifyPrivilege	4636	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4636	msdcsc.exe
Token: SeUndockPrivilege	4636	msdcsc.exe
Token: SeManageVolumePrivilege	4636	msdcsc.exe
Token: SeImpersonatePrivilege	4636	msdcsc.exe
Token: SeCreateGlobalPrivilege	4636	msdcsc.exe
Token: 33	4636	msdcsc.exe
Token: 34	4636	msdcsc.exe
Token: 35	4636	msdcsc.exe
Token: 36	4636	msdcsc.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4812	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
4360	msdcsc.exe
4636	msdcsc.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 4812 wrote to memory of 4868	4812	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe	82
PID 4812 wrote to memory of 4868	4812	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe	82
PID 4812 wrote to memory of 4868	4812	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe	82
PID 4812 wrote to memory of 4868	4812	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe	82
PID 4812 wrote to memory of 4868	4812	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe	82
PID 4812 wrote to memory of 4868	4812	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe	82
PID 4812 wrote to memory of 4868	4812	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe	82
PID 4812 wrote to memory of 4868	4812	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe	82
PID 4812 wrote to memory of 4868	4812	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe	82
PID 4812 wrote to memory of 4868	4812	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe	82
PID 4812 wrote to memory of 4868	4812	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe	82
PID 4812 wrote to memory of 4868	4812	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe	82
PID 4812 wrote to memory of 4868	4812	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe	82
PID 4812 wrote to memory of 4868	4812	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe	82
PID 4868 wrote to memory of 4360	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe	83
PID 4868 wrote to memory of 4360	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe	83
PID 4868 wrote to memory of 4360	4868	30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe	83
PID 4360 wrote to memory of 4636	4360	msdcsc.exe	84
PID 4360 wrote to memory of 4636	4360	msdcsc.exe	84
PID 4360 wrote to memory of 4636	4360	msdcsc.exe	84
PID 4360 wrote to memory of 4636	4360	msdcsc.exe	84
PID 4360 wrote to memory of 4636	4360	msdcsc.exe	84
PID 4360 wrote to memory of 4636	4360	msdcsc.exe	84
PID 4360 wrote to memory of 4636	4360	msdcsc.exe	84
PID 4360 wrote to memory of 4636	4360	msdcsc.exe	84
PID 4360 wrote to memory of 4636	4360	msdcsc.exe	84
PID 4360 wrote to memory of 4636	4360	msdcsc.exe	84
PID 4360 wrote to memory of 4636	4360	msdcsc.exe	84
PID 4360 wrote to memory of 4636	4360	msdcsc.exe	84
PID 4360 wrote to memory of 4636	4360	msdcsc.exe	84
PID 4360 wrote to memory of 4636	4360	msdcsc.exe	84

C:\Users\Admin\AppData\Local\Temp\30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
"C:\Users\Admin\AppData\Local\Temp\30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4812
- C:\Users\Admin\AppData\Local\Temp\30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
  C:\Users\Admin\AppData\Local\Temp\30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c.exe
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4868
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4360
  - - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:4636

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

msdcsc.exe

Path C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Size 825KB
SHA256 30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c
MD5 2cc680307934db679476001c2d42501a
SHA1 2285e76059caa519e497df60787fb12ddba47b28
SHA512 cec33f1e326782682721cad7c1f106ebeb83ba636b39d62f76971cd63f986b8da8326e29f6994ce047321d90c86e25f6e8950becc1e85bd668843afeb80042fd
SSDEEP 24576:+4qMHqSqV7zbRbJ1NMJwktXvIA0NC3Oh+FJD:+4q+7E9J1NMxt/IA0C3Oh+3D
MD5 SHA1 SHA512 SSDEEP

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msdcsc.exe

Path C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Size 825KB
SHA256 30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c
MD5 2cc680307934db679476001c2d42501a
SHA1 2285e76059caa519e497df60787fb12ddba47b28
SHA512 cec33f1e326782682721cad7c1f106ebeb83ba636b39d62f76971cd63f986b8da8326e29f6994ce047321d90c86e25f6e8950becc1e85bd668843afeb80042fd
SSDEEP 24576:+4qMHqSqV7zbRbJ1NMJwktXvIA0NC3Oh+FJD:+4q+7E9J1NMxt/IA0C3Oh+3D
MD5 SHA1 SHA512 SSDEEP

Submit Download

msdcsc.exe

Path C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Size 825KB
SHA256 30cc674865403c5ad3eb246fbb4eb71cad63f4d044fcce96d9949d172497323c
MD5 2cc680307934db679476001c2d42501a
SHA1 2285e76059caa519e497df60787fb12ddba47b28
SHA512 cec33f1e326782682721cad7c1f106ebeb83ba636b39d62f76971cd63f986b8da8326e29f6994ce047321d90c86e25f6e8950becc1e85bd668843afeb80042fd
SSDEEP 24576:+4qMHqSqV7zbRbJ1NMJwktXvIA0NC3Oh+FJD:+4q+7E9J1NMxt/IA0C3Oh+3D
MD5 SHA1 SHA512 SSDEEP

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memory/4360-148-0x0000000000400000-0x0000000000595000-memory.dmp

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memory/4360-153-0x0000000000400000-0x0000000000595000-memory.dmp

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memory/4360-149-0x0000000000400000-0x0000000000595000-memory.dmp

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memory/4636-155-0x0000000000400000-0x00000000004C3000-memory.dmp

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memory/4636-154-0x0000000000400000-0x00000000004C3000-memory.dmp

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memory/4636-152-0x0000000000400000-0x00000000004C3000-memory.dmp

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memory/4812-138-0x0000000000400000-0x0000000000595000-memory.dmp

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memory/4868-137-0x0000000000400000-0x00000000004C3000-memory.dmp

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memory/4868-143-0x0000000000400000-0x00000000004C3000-memory.dmp

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memory/4868-139-0x0000000000400000-0x00000000004C3000-memory.dmp

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memory/4868-136-0x0000000000400000-0x00000000004C3000-memory.dmp

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memory/4868-135-0x0000000000400000-0x00000000004C3000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads