darkcomet | 9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2

Analysis

max time kernel
151s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-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
944	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
1964	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-1-5-21-3845472200-3839195424-595303356-1000\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 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeSecurityPrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeTakeOwnershipPrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeLoadDriverPrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeSystemProfilePrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeSystemtimePrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeProfSingleProcessPrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeIncBasePriorityPrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeCreatePagefilePrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeBackupPrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeRestorePrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeShutdownPrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeDebugPrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeSystemEnvironmentPrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeChangeNotifyPrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeRemoteShutdownPrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeUndockPrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeManageVolumePrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeImpersonatePrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeCreateGlobalPrivilege	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: 33	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: 34	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: 35	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
Token: SeIncreaseQuotaPrivilege	944	msdcsc.exe
Token: SeSecurityPrivilege	944	msdcsc.exe
Token: SeTakeOwnershipPrivilege	944	msdcsc.exe
Token: SeLoadDriverPrivilege	944	msdcsc.exe
Token: SeSystemProfilePrivilege	944	msdcsc.exe
Token: SeSystemtimePrivilege	944	msdcsc.exe
Token: SeProfSingleProcessPrivilege	944	msdcsc.exe
Token: SeIncBasePriorityPrivilege	944	msdcsc.exe
Token: SeCreatePagefilePrivilege	944	msdcsc.exe
Token: SeBackupPrivilege	944	msdcsc.exe
Token: SeRestorePrivilege	944	msdcsc.exe
Token: SeShutdownPrivilege	944	msdcsc.exe
Token: SeDebugPrivilege	944	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	944	msdcsc.exe
Token: SeChangeNotifyPrivilege	944	msdcsc.exe
Token: SeRemoteShutdownPrivilege	944	msdcsc.exe
Token: SeUndockPrivilege	944	msdcsc.exe
Token: SeManageVolumePrivilege	944	msdcsc.exe
Token: SeImpersonatePrivilege	944	msdcsc.exe
Token: SeCreateGlobalPrivilege	944	msdcsc.exe
Token: 33	944	msdcsc.exe
Token: 34	944	msdcsc.exe
Token: 35	944	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
944	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 944	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe	28
PID 1964 wrote to memory of 944	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe	28
PID 1964 wrote to memory of 944	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe	28
PID 1964 wrote to memory of 944	1964	9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe	28

C:\Users\Admin\AppData\Local\Temp\9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.exe
"C:\Users\Admin\AppData\Local\Temp\9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2.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:\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:944

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

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

Filesize
658KB

MD5
47d14a00e96b909092742039cd736413

SHA1
0cb7e7db02f0444a991b0f5208341a1a4999cf37

SHA256
9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2

SHA512
fa8f33e2e0a34454223392709452906f9829830cebc1f18cafb49641c757f4367622e5525ef4bd86d5785751029627cb67895bf5fe3da867bd79a1666ae49c8b

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

Filesize
658KB

MD5
47d14a00e96b909092742039cd736413

SHA1
0cb7e7db02f0444a991b0f5208341a1a4999cf37

SHA256
9b6508c6fa4a187143b4353979264952d3a34f45c606a0c0762fd81606ea2ef2

SHA512
fa8f33e2e0a34454223392709452906f9829830cebc1f18cafb49641c757f4367622e5525ef4bd86d5785751029627cb67895bf5fe3da867bd79a1666ae49c8b

Download Submit
memory/1964-54-0x0000000075A11000-0x0000000075A13000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads