darkcomet | 30cbd237dd340322b6e73a4fcc1db9446b9a7fc902e5d59afd00281f5bcf9ae6

Analysis

max time kernel
141s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
29/03/2025, 19:30

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General

Target

JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Size

658KB
MD5

94e20e1f4b2265385e9a505a548937c1
SHA1

182268647e23051d61d0cd0fe1c85d61d3bef38d
SHA256

30cbd237dd340322b6e73a4fcc1db9446b9a7fc902e5d59afd00281f5bcf9ae6
SHA512

29acd885e925a1ba7bc85fc56d1fa5d1fa7b748892d287297abd000fad40b9dcf79197221bf2480d1ce04b6b7e58bdcc768ffed730d4672dce0f16dc9a4b5697
SSDEEP

12288:S9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLO9EkfC/Bw:+Z1xuVVjfFoynPaVBUR8f+kN1SEHS

Score

10^/10

darkcomet discovery persistence rat trojan

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
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:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.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-1-5-21-814918696-1585701690-3140955116-1000\Control Panel\International\Geo\Nation	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe

Executes dropped EXE 1 IoCs

pid	Process
4432	msdcsc.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-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	msdcsc.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeSecurityPrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeTakeOwnershipPrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeLoadDriverPrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeSystemProfilePrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeSystemtimePrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeProfSingleProcessPrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeIncBasePriorityPrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeCreatePagefilePrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeBackupPrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeRestorePrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeShutdownPrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeDebugPrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeSystemEnvironmentPrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeChangeNotifyPrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeRemoteShutdownPrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeUndockPrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeManageVolumePrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeImpersonatePrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeCreateGlobalPrivilege	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: 33	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: 34	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: 35	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: 36	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
Token: SeIncreaseQuotaPrivilege	4432	msdcsc.exe
Token: SeSecurityPrivilege	4432	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4432	msdcsc.exe
Token: SeLoadDriverPrivilege	4432	msdcsc.exe
Token: SeSystemProfilePrivilege	4432	msdcsc.exe
Token: SeSystemtimePrivilege	4432	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4432	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4432	msdcsc.exe
Token: SeCreatePagefilePrivilege	4432	msdcsc.exe
Token: SeBackupPrivilege	4432	msdcsc.exe
Token: SeRestorePrivilege	4432	msdcsc.exe
Token: SeShutdownPrivilege	4432	msdcsc.exe
Token: SeDebugPrivilege	4432	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4432	msdcsc.exe
Token: SeChangeNotifyPrivilege	4432	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4432	msdcsc.exe
Token: SeUndockPrivilege	4432	msdcsc.exe
Token: SeManageVolumePrivilege	4432	msdcsc.exe
Token: SeImpersonatePrivilege	4432	msdcsc.exe
Token: SeCreateGlobalPrivilege	4432	msdcsc.exe
Token: 33	4432	msdcsc.exe
Token: 34	4432	msdcsc.exe
Token: 35	4432	msdcsc.exe
Token: 36	4432	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4432	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3256 wrote to memory of 4432	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe	88
PID 3256 wrote to memory of 4432	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe	88
PID 3256 wrote to memory of 4432	3256	JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_94e20e1f4b2265385e9a505a548937c1.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3256
- C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
  "C:\Windows\system32\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4432

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\system32\MSDCSC\msdcsc.exe
1⤵
PID:4800

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\system32\MSDCSC\msdcsc.exe
1⤵
PID:4516

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\system32\MSDCSC\msdcsc.exe
1⤵
PID:1908

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\system32\MSDCSC\msdcsc.exe
1⤵
PID:3304

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\system32\MSDCSC\msdcsc.exe
1⤵
PID:1800

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\system32\MSDCSC\msdcsc.exe
1⤵
PID:4084

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\system32\MSDCSC\msdcsc.exe
1⤵
PID:2652

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\system32\MSDCSC\msdcsc.exe
1⤵
PID:3940

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\system32\MSDCSC\msdcsc.exe
1⤵
PID:740

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\system32\MSDCSC\msdcsc.exe
1⤵
PID:2120

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\system32\MSDCSC\msdcsc.exe
1⤵
PID:1364

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\system32\MSDCSC\msdcsc.exe
1⤵
PID:368

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\system32\MSDCSC\msdcsc.exe
1⤵
PID:972

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\system32\MSDCSC\msdcsc.exe
1⤵
PID:2376

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\system32\MSDCSC\msdcsc.exe
1⤵
PID:3832

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\system32\MSDCSC\msdcsc.exe
1⤵
PID:4472

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
94e20e1f4b2265385e9a505a548937c1

SHA1
182268647e23051d61d0cd0fe1c85d61d3bef38d

SHA256
30cbd237dd340322b6e73a4fcc1db9446b9a7fc902e5d59afd00281f5bcf9ae6

SHA512
29acd885e925a1ba7bc85fc56d1fa5d1fa7b748892d287297abd000fad40b9dcf79197221bf2480d1ce04b6b7e58bdcc768ffed730d4672dce0f16dc9a4b5697

Download Submit
memory/3256-0-0x0000000000650000-0x0000000000651000-memory.dmp

Filesize
4KB

Download
memory/3256-62-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4432-61-0x0000000002070000-0x0000000002071000-memory.dmp

Filesize
4KB

Download
memory/4432-64-0x0000000002070000-0x0000000002071000-memory.dmp

Filesize
4KB

Download
memory/4432-63-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4432-66-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads