darkcomet | f11feb67029da1a2d4d32d9ef5a0c29736b8cfcc5e45663e556896c3cfb2b8ea

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-10-2024 06:09

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General

Target

6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Size

658KB
MD5

6d6e71da458aad967f2d4a11d022d562
SHA1

1262a634ebb288c9fa493fd62278581e2f8490b7
SHA256

f11feb67029da1a2d4d32d9ef5a0c29736b8cfcc5e45663e556896c3cfb2b8ea
SHA512

2d6831aa0cf303ad51a2b781c16af6bd1b902912d096094b5ab05ef4f020ec53d893c94ec256b0d992f89367ecf88edcc4e01a92ad03e4c6a703b9297dbc632e
SSDEEP

12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h8:KZ1xuVVjfFoynPaVBUR8f+kN10EBu

Score

10^/10

darkcomet serveur discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

serveur

geek.no-ip.biz:200

Mutex

DC_MUTEX-TAZNVNN

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
GFY04QAoSYCB
install
true
offline_keylogger
true
persistence
true
reg_key
rundll32

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

Processes:

6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
1772	attrib.exe
5044	attrib.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:

6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
4012	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exemsdcsc.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rundll32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rundll32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	msdcsc.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 7 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

Processes:

attrib.exeattrib.exemsdcsc.exenotepad.exe6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.execmd.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 1 IoCs

Processes:

6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid	Process
4012	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeSecurityPrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeBackupPrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeRestorePrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeShutdownPrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeDebugPrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeUndockPrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: 33	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: 34	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: 35	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: 36	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4012	msdcsc.exe
Token: SeSecurityPrivilege	4012	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4012	msdcsc.exe
Token: SeLoadDriverPrivilege	4012	msdcsc.exe
Token: SeSystemProfilePrivilege	4012	msdcsc.exe
Token: SeSystemtimePrivilege	4012	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4012	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4012	msdcsc.exe
Token: SeCreatePagefilePrivilege	4012	msdcsc.exe
Token: SeBackupPrivilege	4012	msdcsc.exe
Token: SeRestorePrivilege	4012	msdcsc.exe
Token: SeShutdownPrivilege	4012	msdcsc.exe
Token: SeDebugPrivilege	4012	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4012	msdcsc.exe
Token: SeChangeNotifyPrivilege	4012	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4012	msdcsc.exe
Token: SeUndockPrivilege	4012	msdcsc.exe
Token: SeManageVolumePrivilege	4012	msdcsc.exe
Token: SeImpersonatePrivilege	4012	msdcsc.exe
Token: SeCreateGlobalPrivilege	4012	msdcsc.exe
Token: 33	4012	msdcsc.exe
Token: 34	4012	msdcsc.exe
Token: 35	4012	msdcsc.exe
Token: 36	4012	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
4012	msdcsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.execmd.execmd.exemsdcsc.exe

description	pid	Process	procid_target
PID 1696 wrote to memory of 4084	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe	84
PID 1696 wrote to memory of 4084	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe	84
PID 1696 wrote to memory of 4084	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe	84
PID 1696 wrote to memory of 2512	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe	85
PID 1696 wrote to memory of 2512	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe	85
PID 1696 wrote to memory of 2512	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe	85
PID 4084 wrote to memory of 1772	4084	cmd.exe	88
PID 4084 wrote to memory of 1772	4084	cmd.exe	88
PID 4084 wrote to memory of 1772	4084	cmd.exe	88
PID 2512 wrote to memory of 5044	2512	cmd.exe	89
PID 2512 wrote to memory of 5044	2512	cmd.exe	89
PID 2512 wrote to memory of 5044	2512	cmd.exe	89
PID 1696 wrote to memory of 4012	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe	90
PID 1696 wrote to memory of 4012	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe	90
PID 1696 wrote to memory of 4012	1696	6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe	90
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91
PID 4012 wrote to memory of 3220	4012	msdcsc.exe	91

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
1772	attrib.exe
5044	attrib.exe

C:\Users\Admin\AppData\Local\Temp\6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1696
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4084
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\6d6e71da458aad967f2d4a11d022d562_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:1772
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2512
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:5044
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4012
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3220

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
6d6e71da458aad967f2d4a11d022d562

SHA1
1262a634ebb288c9fa493fd62278581e2f8490b7

SHA256
f11feb67029da1a2d4d32d9ef5a0c29736b8cfcc5e45663e556896c3cfb2b8ea

SHA512
2d6831aa0cf303ad51a2b781c16af6bd1b902912d096094b5ab05ef4f020ec53d893c94ec256b0d992f89367ecf88edcc4e01a92ad03e4c6a703b9297dbc632e

Download Submit
memory/1696-64-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1696-0-0x0000000002280000-0x0000000002281000-memory.dmp

Filesize
4KB

Download
memory/3220-63-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/4012-68-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4012-71-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4012-66-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4012-67-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4012-62-0x00000000023E0000-0x00000000023E1000-memory.dmp

Filesize
4KB

Download
memory/4012-69-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4012-70-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4012-65-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4012-72-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4012-73-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4012-74-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4012-75-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4012-76-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4012-77-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4012-78-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download