darkcomet | 88b021b7ca90fd43794747c2a417e74a70c494276d4ebc3cee4c5c9b0d1f68ad

Analysis

max time kernel
145s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
13/04/2024, 01:47

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General

Target
97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Size 663KB
Sample240413-b7wp8ach6x
SHA256 97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8
MD5 c4633cedf3f1b0c1527012a4f67d9a01
SHA1 221067b2868decbddcaf4e1758dfd9c1e7fced94
SHA512 87c107bf0c04b2ffc94fe1f2dd9df5b3e19fee67e15620dab90fa8abac90002f62178ca5fd2d3994b76a156c9b7ae690cf76cc7397c915e75aa445aa60b7c2a4
SSDEEP 12288:O9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9EkNC/:aZ1xuVVjfFoynPaVBUR8f+kN10Ed
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet sazan persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Sazan

0.tcp.eu.ngrok.io:19165:19165

Mutex

DC_MUTEX-AZWBJ2E

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
Py8v2wbhf6PU
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

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

T1547.004

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"	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe

Deletes itself 1 IoCs

pid	Process
2508	notepad.exe

Executes dropped EXE 1 IoCs

pid	Process
2656	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
2	0.tcp.eu.ngrok.io
6	0.tcp.eu.ngrok.io
10	0.tcp.eu.ngrok.io

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeSecurityPrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeTakeOwnershipPrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeLoadDriverPrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeSystemProfilePrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeSystemtimePrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeProfSingleProcessPrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeIncBasePriorityPrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeCreatePagefilePrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeBackupPrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeRestorePrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeShutdownPrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeDebugPrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeSystemEnvironmentPrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeChangeNotifyPrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeRemoteShutdownPrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeUndockPrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeManageVolumePrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeImpersonatePrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeCreateGlobalPrivilege	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: 33	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: 34	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: 35	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
Token: SeIncreaseQuotaPrivilege	2656	msdcsc.exe
Token: SeSecurityPrivilege	2656	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2656	msdcsc.exe
Token: SeLoadDriverPrivilege	2656	msdcsc.exe
Token: SeSystemProfilePrivilege	2656	msdcsc.exe
Token: SeSystemtimePrivilege	2656	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2656	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2656	msdcsc.exe
Token: SeCreatePagefilePrivilege	2656	msdcsc.exe
Token: SeBackupPrivilege	2656	msdcsc.exe
Token: SeRestorePrivilege	2656	msdcsc.exe
Token: SeShutdownPrivilege	2656	msdcsc.exe
Token: SeDebugPrivilege	2656	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2656	msdcsc.exe
Token: SeChangeNotifyPrivilege	2656	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2656	msdcsc.exe
Token: SeUndockPrivilege	2656	msdcsc.exe
Token: SeManageVolumePrivilege	2656	msdcsc.exe
Token: SeImpersonatePrivilege	2656	msdcsc.exe
Token: SeCreateGlobalPrivilege	2656	msdcsc.exe
Token: 33	2656	msdcsc.exe
Token: 34	2656	msdcsc.exe
Token: 35	2656	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2656	msdcsc.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 2508	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	28
PID 1964 wrote to memory of 2508	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	28
PID 1964 wrote to memory of 2508	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	28
PID 1964 wrote to memory of 2508	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	28
PID 1964 wrote to memory of 2508	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	28
PID 1964 wrote to memory of 2508	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	28
PID 1964 wrote to memory of 2508	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	28
PID 1964 wrote to memory of 2508	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	28
PID 1964 wrote to memory of 2508	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	28
PID 1964 wrote to memory of 2508	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	28
PID 1964 wrote to memory of 2508	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	28
PID 1964 wrote to memory of 2508	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	28
PID 1964 wrote to memory of 2508	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	28
PID 1964 wrote to memory of 2508	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	28
PID 1964 wrote to memory of 2508	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	28
PID 1964 wrote to memory of 2508	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	28
PID 1964 wrote to memory of 2508	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	28
PID 1964 wrote to memory of 2508	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	28
PID 1964 wrote to memory of 2656	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	29
PID 1964 wrote to memory of 2656	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	29
PID 1964 wrote to memory of 2656	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	29
PID 1964 wrote to memory of 2656	1964	97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe	29

C:\Users\Admin\AppData\Local\Temp\97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe
"C:\Users\Admin\AppData\Local\Temp\97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  PID:2508
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

msdcsc.exe

Path \Users\Admin\Documents\MSDCSC\msdcsc.exe
Size 663KB
SHA256 97e952e79c07ce103290267a4209cadcb96b010ea18d4d7932d4649eb242afc8
MD5 c4633cedf3f1b0c1527012a4f67d9a01
SHA1 221067b2868decbddcaf4e1758dfd9c1e7fced94
SHA512 87c107bf0c04b2ffc94fe1f2dd9df5b3e19fee67e15620dab90fa8abac90002f62178ca5fd2d3994b76a156c9b7ae690cf76cc7397c915e75aa445aa60b7c2a4
SSDEEP 12288:O9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9EkNC/:aZ1xuVVjfFoynPaVBUR8f+kN10Ed
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1964-0-0x0000000000240000-0x0000000000241000-memory.dmp

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memory/1964-40-0x0000000000400000-0x00000000004B3000-memory.dmp

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memory/2508-3-0x00000000000C0000-0x00000000000C1000-memory.dmp

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memory/2508-29-0x00000000003E0000-0x00000000003E1000-memory.dmp

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memory/2656-38-0x00000000001D0000-0x00000000001D1000-memory.dmp

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memory/2656-42-0x0000000000400000-0x00000000004B3000-memory.dmp

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memory/2656-44-0x0000000000400000-0x00000000004B3000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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