darkcomet | 9426a96f9b4422623f3e50a657ed388b844fe4501627c32c98434a8e01fb183e

General

Target
9426a96f9b4422623f3e50a657ed388b844fe4501627c32c98434a8e01fb183e.exe
Size 420KB
Sample221014-cehtbscahp
SHA256 9426a96f9b4422623f3e50a657ed388b844fe4501627c32c98434a8e01fb183e
MD5 5334d63f86e8f9b4e438a50c872d6aa8
SHA1 45449153cbc650c66638f2f927e022651e8920c8
SHA512 8898cfc715f6ab930a4aa4879d7ccd2fdeb5a113a99aa6ae71a26528092752985c40c2cb2b9e6c8ea2b19bca27fcd2a944b005b6de37bcf551df986d53d07057
SSDEEP 12288:8kWAehJuqTViAR6kU6ckEY8odNw0bERUQZ:8kWAAuqh36kUtt0bEyG
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet 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
1372	server.exe

Checks BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	server.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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	9426a96f9b4422623f3e50a657ed388b844fe4501627c32c98434a8e01fb183e.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	server.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	server.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	server.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	server.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	server.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1372	server.exe
Token: SeSecurityPrivilege	1372	server.exe
Token: SeTakeOwnershipPrivilege	1372	server.exe
Token: SeLoadDriverPrivilege	1372	server.exe
Token: SeSystemProfilePrivilege	1372	server.exe
Token: SeSystemtimePrivilege	1372	server.exe
Token: SeProfSingleProcessPrivilege	1372	server.exe
Token: SeIncBasePriorityPrivilege	1372	server.exe
Token: SeCreatePagefilePrivilege	1372	server.exe
Token: SeBackupPrivilege	1372	server.exe
Token: SeRestorePrivilege	1372	server.exe
Token: SeShutdownPrivilege	1372	server.exe
Token: SeDebugPrivilege	1372	server.exe
Token: SeSystemEnvironmentPrivilege	1372	server.exe
Token: SeChangeNotifyPrivilege	1372	server.exe
Token: SeRemoteShutdownPrivilege	1372	server.exe
Token: SeUndockPrivilege	1372	server.exe
Token: SeManageVolumePrivilege	1372	server.exe
Token: SeImpersonatePrivilege	1372	server.exe
Token: SeCreateGlobalPrivilege	1372	server.exe
Token: 33	1372	server.exe
Token: 34	1372	server.exe
Token: 35	1372	server.exe
Token: 36	1372	server.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1372	server.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4812 wrote to memory of 1372	4812	9426a96f9b4422623f3e50a657ed388b844fe4501627c32c98434a8e01fb183e.exe	83
PID 4812 wrote to memory of 1372	4812	9426a96f9b4422623f3e50a657ed388b844fe4501627c32c98434a8e01fb183e.exe	83
PID 4812 wrote to memory of 1372	4812	9426a96f9b4422623f3e50a657ed388b844fe4501627c32c98434a8e01fb183e.exe	83

C:\Users\Admin\AppData\Local\Temp\9426a96f9b4422623f3e50a657ed388b844fe4501627c32c98434a8e01fb183e.exe
"C:\Users\Admin\AppData\Local\Temp\9426a96f9b4422623f3e50a657ed388b844fe4501627c32c98434a8e01fb183e.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4812
- C:\server.exe
  "C:\server.exe"
  2⤵
  - Executes dropped EXE
  - Checks BIOS information in registry
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1372

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

4

T1012

System Information Discovery

5

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

server.exe

Path C:\server.exe
Size 658KB
SHA256 199df27de3935c5be824d6c490f7e0e29dfa86bbbd066043d7cdcc9d9af39b99
MD5 4b0acb28fc553ce56cb03485d2588ec1
SHA1 ba22654bdd33d0ca248804f405a9068cffbe94f3
SHA512 fe159d6fa75c8723992f7b5db06fbb868d0da04adf810ed4ccb7c8f817dcb0f15708d1277755fb54e44136d86e61aaef5ae619406b3f7e3347418c3ff0158a32
SSDEEP 12288:19AFlAd0Z+89cxTGzO4AucTD8QP2lmFSrVs9LqnKDl:zAQ6Zx9cxTmOrucTIEFSpOGGl
MD5 SHA1 SHA512 SSDEEP

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server.exe

Path C:\server.exe
Size 658KB
SHA256 199df27de3935c5be824d6c490f7e0e29dfa86bbbd066043d7cdcc9d9af39b99
MD5 4b0acb28fc553ce56cb03485d2588ec1
SHA1 ba22654bdd33d0ca248804f405a9068cffbe94f3
SHA512 fe159d6fa75c8723992f7b5db06fbb868d0da04adf810ed4ccb7c8f817dcb0f15708d1277755fb54e44136d86e61aaef5ae619406b3f7e3347418c3ff0158a32
SSDEEP 12288:19AFlAd0Z+89cxTGzO4AucTD8QP2lmFSrVs9LqnKDl:zAQ6Zx9cxTmOrucTIEFSpOGGl
MD5 SHA1 SHA512 SSDEEP

Submit Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads