darkcomet | 94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8

General

Target

94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Size

658KB
MD5

c83633173c75e4587c982d385df8d72a
SHA1

377c3e448695942b70d2e79a104578e82b603157
SHA256

94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8
SHA512

3ed1413b7bc02e2990d90b92b771396ed3b73be2be2c829d7ffc4d5e5d1e3ed046bd56465870cbedde372d767a390ade014d3cfdfdef00e251ca4ae85cf7566b
SSDEEP

12288:S9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hx:+Z1xuVVjfFoynPaVBUR8f+kN10EB7

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

cyberzak.zapto.org:8489

Mutex

DC_MUTEX-AJG90QM

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
rSEzkUJGrMNQ
install
true
offline_keylogger
true
persistence
true
reg_key
java

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

Processes:

94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

4528 msdcsc.exe

pid	process
4528	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

Processes:

94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\java = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\java = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	msdcsc.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

Processes:

94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeSecurityPrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeTakeOwnershipPrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeLoadDriverPrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeSystemProfilePrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeSystemtimePrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeProfSingleProcessPrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeIncBasePriorityPrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeCreatePagefilePrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeBackupPrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeRestorePrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeShutdownPrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeDebugPrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeSystemEnvironmentPrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeChangeNotifyPrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeRemoteShutdownPrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeUndockPrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeManageVolumePrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeImpersonatePrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeCreateGlobalPrivilege	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: 33	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: 34	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: 35	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: 36	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeIncreaseQuotaPrivilege	4528	msdcsc.exe
Token: SeSecurityPrivilege	4528	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4528	msdcsc.exe
Token: SeLoadDriverPrivilege	4528	msdcsc.exe
Token: SeSystemProfilePrivilege	4528	msdcsc.exe
Token: SeSystemtimePrivilege	4528	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4528	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4528	msdcsc.exe
Token: SeCreatePagefilePrivilege	4528	msdcsc.exe
Token: SeBackupPrivilege	4528	msdcsc.exe
Token: SeRestorePrivilege	4528	msdcsc.exe
Token: SeShutdownPrivilege	4528	msdcsc.exe
Token: SeDebugPrivilege	4528	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4528	msdcsc.exe
Token: SeChangeNotifyPrivilege	4528	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4528	msdcsc.exe
Token: SeUndockPrivilege	4528	msdcsc.exe
Token: SeManageVolumePrivilege	4528	msdcsc.exe
Token: SeImpersonatePrivilege	4528	msdcsc.exe
Token: SeCreateGlobalPrivilege	4528	msdcsc.exe
Token: 33	4528	msdcsc.exe
Token: 34	4528	msdcsc.exe
Token: 35	4528	msdcsc.exe
Token: 36	4528	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

4528 msdcsc.exe

pid	process
4528	msdcsc.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exemsdcsc.exe

description	pid	process	target process
PID 1224 wrote to memory of 2084	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1224 wrote to memory of 2084	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1224 wrote to memory of 2084	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1224 wrote to memory of 2084	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1224 wrote to memory of 2084	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1224 wrote to memory of 2084	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1224 wrote to memory of 2084	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1224 wrote to memory of 2084	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1224 wrote to memory of 2084	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1224 wrote to memory of 2084	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1224 wrote to memory of 2084	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1224 wrote to memory of 2084	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1224 wrote to memory of 2084	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1224 wrote to memory of 2084	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1224 wrote to memory of 2084	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1224 wrote to memory of 2084	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1224 wrote to memory of 2084	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1224 wrote to memory of 4528	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	msdcsc.exe
PID 1224 wrote to memory of 4528	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	msdcsc.exe
PID 1224 wrote to memory of 4528	1224	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	msdcsc.exe
PID 4528 wrote to memory of 3376	4528	msdcsc.exe	iexplore.exe
PID 4528 wrote to memory of 3376	4528	msdcsc.exe	iexplore.exe
PID 4528 wrote to memory of 3376	4528	msdcsc.exe	iexplore.exe
PID 4528 wrote to memory of 4972	4528	msdcsc.exe	explorer.exe
PID 4528 wrote to memory of 4972	4528	msdcsc.exe	explorer.exe

C:\Users\Admin\AppData\Local\Temp\94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
"C:\Users\Admin\AppData\Local\Temp\94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.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:1224
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  PID:2084
- C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
  "C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4528
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:3376
- - C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    3⤵
    PID:4972

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
c83633173c75e4587c982d385df8d72a

SHA1
377c3e448695942b70d2e79a104578e82b603157

SHA256
94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8

SHA512
3ed1413b7bc02e2990d90b92b771396ed3b73be2be2c829d7ffc4d5e5d1e3ed046bd56465870cbedde372d767a390ade014d3cfdfdef00e251ca4ae85cf7566b

Download Submit
C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
c83633173c75e4587c982d385df8d72a

SHA1
377c3e448695942b70d2e79a104578e82b603157

SHA256
94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8

SHA512
3ed1413b7bc02e2990d90b92b771396ed3b73be2be2c829d7ffc4d5e5d1e3ed046bd56465870cbedde372d767a390ade014d3cfdfdef00e251ca4ae85cf7566b

Download Submit
memory/2084-132-0x0000000000000000-mapping.dmp

Download
memory/4528-133-0x0000000000000000-mapping.dmp

Download
memory/4972-136-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads