darkcomet | 9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2

Analysis

max time kernel
171s
max time network
181s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
27/11/2022, 18:26

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General

Target

9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Size

658KB
MD5

47d14a00e96b909092742039cd736413
SHA1

0cb7e7db02f0444a991b0f5208341a1a4999cf37
SHA256

9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2
SHA512

fa8f33e2e0a34454223392709452906f9829830cebc1f18cafb49641c757f4367622e5525ef4bd86d5785751029627cb67895bf5fe3da867bd79a1666ae49c8b
SSDEEP

12288:y9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hu:eZ1xuVVjfFoynPaVBUR8f+kN10EBk

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

barry101.ddns.net:1604

Mutex

DC_MUTEX-W1A5DPE

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
dXnKbhdJfySs
install
true
offline_keylogger
true
password
abido
persistence
false
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

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"	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe

Executes dropped EXE 1 IoCs

pid	Process
4864	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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.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	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeSecurityPrivilege	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeTakeOwnershipPrivilege	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeLoadDriverPrivilege	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeSystemProfilePrivilege	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeSystemtimePrivilege	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeProfSingleProcessPrivilege	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeIncBasePriorityPrivilege	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeCreatePagefilePrivilege	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeBackupPrivilege	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeRestorePrivilege	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeShutdownPrivilege	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeDebugPrivilege	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeSystemEnvironmentPrivilege	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeChangeNotifyPrivilege	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeRemoteShutdownPrivilege	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeUndockPrivilege	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeManageVolumePrivilege	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeImpersonatePrivilege	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeCreateGlobalPrivilege	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: 33	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: 34	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: 35	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: 36	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeIncreaseQuotaPrivilege	4864	msdcsc.exe
Token: SeSecurityPrivilege	4864	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4864	msdcsc.exe
Token: SeLoadDriverPrivilege	4864	msdcsc.exe
Token: SeSystemProfilePrivilege	4864	msdcsc.exe
Token: SeSystemtimePrivilege	4864	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4864	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4864	msdcsc.exe
Token: SeCreatePagefilePrivilege	4864	msdcsc.exe
Token: SeBackupPrivilege	4864	msdcsc.exe
Token: SeRestorePrivilege	4864	msdcsc.exe
Token: SeShutdownPrivilege	4864	msdcsc.exe
Token: SeDebugPrivilege	4864	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4864	msdcsc.exe
Token: SeChangeNotifyPrivilege	4864	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4864	msdcsc.exe
Token: SeUndockPrivilege	4864	msdcsc.exe
Token: SeManageVolumePrivilege	4864	msdcsc.exe
Token: SeImpersonatePrivilege	4864	msdcsc.exe
Token: SeCreateGlobalPrivilege	4864	msdcsc.exe
Token: 33	4864	msdcsc.exe
Token: 34	4864	msdcsc.exe
Token: 35	4864	msdcsc.exe
Token: 36	4864	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4864	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4948 wrote to memory of 4864	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe	81
PID 4948 wrote to memory of 4864	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe	81
PID 4948 wrote to memory of 4864	4948	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe	81

C:\Users\Admin\AppData\Local\Temp\9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
"C:\Users\Admin\AppData\Local\Temp\9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.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:4948
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4864

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

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
47d14a00e96b909092742039cd736413

SHA1
0cb7e7db02f0444a991b0f5208341a1a4999cf37

SHA256
9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2

SHA512
fa8f33e2e0a34454223392709452906f9829830cebc1f18cafb49641c757f4367622e5525ef4bd86d5785751029627cb67895bf5fe3da867bd79a1666ae49c8b

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
47d14a00e96b909092742039cd736413

SHA1
0cb7e7db02f0444a991b0f5208341a1a4999cf37

SHA256
9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2

SHA512
fa8f33e2e0a34454223392709452906f9829830cebc1f18cafb49641c757f4367622e5525ef4bd86d5785751029627cb67895bf5fe3da867bd79a1666ae49c8b

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads