darkcomet | d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573

Analysis

max time kernel
136s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19/11/2022, 16:59

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General

Target
d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Size 658KB
Sample221119-vhgpjsfb9s
SHA256 d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573
MD5 59c186a94deea4a4eed5267e5ff40228
SHA1 0972f3ce606e1c7440236e730cdd51e747e4381c
SHA512 ddd003029c030f3cd8694c3eca0b89b8c273174db359e01230e184105b88cd795eb861497694a933fa94052427248ad4b87e71be2221bfe820ecc35fbd185e02
SSDEEP 12288:y9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hw:eZ1xuVVjfFoynPaVBUR8f+kN10EBa
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet guest16_min persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

127.0.0.1:1604

Mutex

DCMIN_MUTEX-YYEQXX1

Attributes

InstallPath
DCSCMIN\IMDCSC.exe
gencode
LB93N8UvcyXz
install
true
offline_keylogger
true
persistence
false
reg_key
DarkComet RAT

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\\DCSCMIN\\IMDCSC.exe"	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe

Executes dropped EXE 1 IoCs

pid	Process
1228	IMDCSC.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	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DarkComet RAT = "C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe

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	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeSecurityPrivilege	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeTakeOwnershipPrivilege	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeLoadDriverPrivilege	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeSystemProfilePrivilege	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeSystemtimePrivilege	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeProfSingleProcessPrivilege	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeIncBasePriorityPrivilege	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeCreatePagefilePrivilege	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeBackupPrivilege	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeRestorePrivilege	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeShutdownPrivilege	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeDebugPrivilege	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeSystemEnvironmentPrivilege	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeChangeNotifyPrivilege	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeRemoteShutdownPrivilege	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeUndockPrivilege	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeManageVolumePrivilege	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeImpersonatePrivilege	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeCreateGlobalPrivilege	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: 33	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: 34	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: 35	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: 36	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
Token: SeIncreaseQuotaPrivilege	1228	IMDCSC.exe
Token: SeSecurityPrivilege	1228	IMDCSC.exe
Token: SeTakeOwnershipPrivilege	1228	IMDCSC.exe
Token: SeLoadDriverPrivilege	1228	IMDCSC.exe
Token: SeSystemProfilePrivilege	1228	IMDCSC.exe
Token: SeSystemtimePrivilege	1228	IMDCSC.exe
Token: SeProfSingleProcessPrivilege	1228	IMDCSC.exe
Token: SeIncBasePriorityPrivilege	1228	IMDCSC.exe
Token: SeCreatePagefilePrivilege	1228	IMDCSC.exe
Token: SeBackupPrivilege	1228	IMDCSC.exe
Token: SeRestorePrivilege	1228	IMDCSC.exe
Token: SeShutdownPrivilege	1228	IMDCSC.exe
Token: SeDebugPrivilege	1228	IMDCSC.exe
Token: SeSystemEnvironmentPrivilege	1228	IMDCSC.exe
Token: SeChangeNotifyPrivilege	1228	IMDCSC.exe
Token: SeRemoteShutdownPrivilege	1228	IMDCSC.exe
Token: SeUndockPrivilege	1228	IMDCSC.exe
Token: SeManageVolumePrivilege	1228	IMDCSC.exe
Token: SeImpersonatePrivilege	1228	IMDCSC.exe
Token: SeCreateGlobalPrivilege	1228	IMDCSC.exe
Token: 33	1228	IMDCSC.exe
Token: 34	1228	IMDCSC.exe
Token: 35	1228	IMDCSC.exe
Token: 36	1228	IMDCSC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1228	IMDCSC.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5072 wrote to memory of 1228	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe	83
PID 5072 wrote to memory of 1228	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe	83
PID 5072 wrote to memory of 1228	5072	d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe	83

C:\Users\Admin\AppData\Local\Temp\d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe
"C:\Users\Admin\AppData\Local\Temp\d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5072
- C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
  "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1228

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

IMDCSC.exe

Path C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
Size 658KB
SHA256 d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573
MD5 59c186a94deea4a4eed5267e5ff40228
SHA1 0972f3ce606e1c7440236e730cdd51e747e4381c
SHA512 ddd003029c030f3cd8694c3eca0b89b8c273174db359e01230e184105b88cd795eb861497694a933fa94052427248ad4b87e71be2221bfe820ecc35fbd185e02
SSDEEP 12288:y9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hw:eZ1xuVVjfFoynPaVBUR8f+kN10EBa
MD5 SHA1 SHA512 SSDEEP

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IMDCSC.exe

Path C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
Size 658KB
SHA256 d0a3d3ae861cc2ceb527a973e82c2c1a0fd44e3bb8a078c14159fc3339815573
MD5 59c186a94deea4a4eed5267e5ff40228
SHA1 0972f3ce606e1c7440236e730cdd51e747e4381c
SHA512 ddd003029c030f3cd8694c3eca0b89b8c273174db359e01230e184105b88cd795eb861497694a933fa94052427248ad4b87e71be2221bfe820ecc35fbd185e02
SSDEEP 12288:y9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hw:eZ1xuVVjfFoynPaVBUR8f+kN10EBa
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads