darkcomet | 256844f7896d110ca48165fd4171b6a0f74c53348847a2d53439ac69a19cbf34

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-01-2025 21:12

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_6fb02131b924636a32833678fcb08690.exe
Size

730KB
MD5

6fb02131b924636a32833678fcb08690
SHA1

d9f298aaf401048496632a357dbe7d6686719caf
SHA256

256844f7896d110ca48165fd4171b6a0f74c53348847a2d53439ac69a19cbf34
SHA512

e7fa9e33f926f0bd7f676de7a3cc07dd97b178967a23914290fa85ed17fcd9ab51673997b60808572e1f2e8469dd7a031482d11c29c54873e4984ebfe62f8b4e
SSDEEP

12288:7Q9HfQVJUCSmqrdLTU1afextpqVjuQ3+ZOm8mJM4CWRPvCzsGiZu1Flt6Km9kk8g:7rkTU1tIRrZrmJ9PFZgrmP3aGRM/q

Score

10^/10

darkcomet victims discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Victims

marinikework.no-ip.biz:81

Mutex

DC_MUTEX-PXVT27J

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
CBlGa19lbxro
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

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:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	help.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

pid	Process
1564	attrib.exe
2820	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	help.exe

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\system.pif	JaffaCakes118_6fb02131b924636a32833678fcb08690.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\system.pif	help.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\system.pif	msdcsc.exe

Executes dropped EXE 4 IoCs

pid	Process
2640	help.exe
64	help.exe
3132	msdcsc.exe
4940	msdcsc.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	help.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\help = "C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\help.exe"	help.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\help = "C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\help.exe"	help.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2640 set thread context of 64	2640	help.exe	85
PID 3132 set thread context of 4940	3132	msdcsc.exe	93

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 10 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_6fb02131b924636a32833678fcb08690.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
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	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	help.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	help.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4940	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	64	help.exe
Token: SeSecurityPrivilege	64	help.exe
Token: SeTakeOwnershipPrivilege	64	help.exe
Token: SeLoadDriverPrivilege	64	help.exe
Token: SeSystemProfilePrivilege	64	help.exe
Token: SeSystemtimePrivilege	64	help.exe
Token: SeProfSingleProcessPrivilege	64	help.exe
Token: SeIncBasePriorityPrivilege	64	help.exe
Token: SeCreatePagefilePrivilege	64	help.exe
Token: SeBackupPrivilege	64	help.exe
Token: SeRestorePrivilege	64	help.exe
Token: SeShutdownPrivilege	64	help.exe
Token: SeDebugPrivilege	64	help.exe
Token: SeSystemEnvironmentPrivilege	64	help.exe
Token: SeChangeNotifyPrivilege	64	help.exe
Token: SeRemoteShutdownPrivilege	64	help.exe
Token: SeUndockPrivilege	64	help.exe
Token: SeManageVolumePrivilege	64	help.exe
Token: SeImpersonatePrivilege	64	help.exe
Token: SeCreateGlobalPrivilege	64	help.exe
Token: 33	64	help.exe
Token: 34	64	help.exe
Token: 35	64	help.exe
Token: 36	64	help.exe
Token: SeIncreaseQuotaPrivilege	4940	msdcsc.exe
Token: SeSecurityPrivilege	4940	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4940	msdcsc.exe
Token: SeLoadDriverPrivilege	4940	msdcsc.exe
Token: SeSystemProfilePrivilege	4940	msdcsc.exe
Token: SeSystemtimePrivilege	4940	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4940	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4940	msdcsc.exe
Token: SeCreatePagefilePrivilege	4940	msdcsc.exe
Token: SeBackupPrivilege	4940	msdcsc.exe
Token: SeRestorePrivilege	4940	msdcsc.exe
Token: SeShutdownPrivilege	4940	msdcsc.exe
Token: SeDebugPrivilege	4940	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4940	msdcsc.exe
Token: SeChangeNotifyPrivilege	4940	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4940	msdcsc.exe
Token: SeUndockPrivilege	4940	msdcsc.exe
Token: SeManageVolumePrivilege	4940	msdcsc.exe
Token: SeImpersonatePrivilege	4940	msdcsc.exe
Token: SeCreateGlobalPrivilege	4940	msdcsc.exe
Token: 33	4940	msdcsc.exe
Token: 34	4940	msdcsc.exe
Token: 35	4940	msdcsc.exe
Token: 36	4940	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4940	msdcsc.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 876 wrote to memory of 2640	876	JaffaCakes118_6fb02131b924636a32833678fcb08690.exe	84
PID 876 wrote to memory of 2640	876	JaffaCakes118_6fb02131b924636a32833678fcb08690.exe	84
PID 876 wrote to memory of 2640	876	JaffaCakes118_6fb02131b924636a32833678fcb08690.exe	84
PID 2640 wrote to memory of 64	2640	help.exe	85
PID 2640 wrote to memory of 64	2640	help.exe	85
PID 2640 wrote to memory of 64	2640	help.exe	85
PID 2640 wrote to memory of 64	2640	help.exe	85
PID 2640 wrote to memory of 64	2640	help.exe	85
PID 2640 wrote to memory of 64	2640	help.exe	85
PID 2640 wrote to memory of 64	2640	help.exe	85
PID 2640 wrote to memory of 64	2640	help.exe	85
PID 2640 wrote to memory of 64	2640	help.exe	85
PID 2640 wrote to memory of 64	2640	help.exe	85
PID 2640 wrote to memory of 64	2640	help.exe	85
PID 2640 wrote to memory of 64	2640	help.exe	85
PID 2640 wrote to memory of 64	2640	help.exe	85
PID 2640 wrote to memory of 64	2640	help.exe	85
PID 64 wrote to memory of 2620	64	help.exe	86
PID 64 wrote to memory of 2620	64	help.exe	86
PID 64 wrote to memory of 2620	64	help.exe	86
PID 64 wrote to memory of 848	64	help.exe	88
PID 64 wrote to memory of 848	64	help.exe	88
PID 64 wrote to memory of 848	64	help.exe	88
PID 64 wrote to memory of 3132	64	help.exe	90
PID 64 wrote to memory of 3132	64	help.exe	90
PID 64 wrote to memory of 3132	64	help.exe	90
PID 848 wrote to memory of 1564	848	cmd.exe	91
PID 2620 wrote to memory of 2820	2620	cmd.exe	92
PID 848 wrote to memory of 1564	848	cmd.exe	91
PID 848 wrote to memory of 1564	848	cmd.exe	91
PID 2620 wrote to memory of 2820	2620	cmd.exe	92
PID 2620 wrote to memory of 2820	2620	cmd.exe	92
PID 3132 wrote to memory of 4940	3132	msdcsc.exe	93
PID 3132 wrote to memory of 4940	3132	msdcsc.exe	93
PID 3132 wrote to memory of 4940	3132	msdcsc.exe	93
PID 3132 wrote to memory of 4940	3132	msdcsc.exe	93
PID 3132 wrote to memory of 4940	3132	msdcsc.exe	93
PID 3132 wrote to memory of 4940	3132	msdcsc.exe	93
PID 3132 wrote to memory of 4940	3132	msdcsc.exe	93
PID 3132 wrote to memory of 4940	3132	msdcsc.exe	93
PID 3132 wrote to memory of 4940	3132	msdcsc.exe	93
PID 3132 wrote to memory of 4940	3132	msdcsc.exe	93
PID 3132 wrote to memory of 4940	3132	msdcsc.exe	93
PID 3132 wrote to memory of 4940	3132	msdcsc.exe	93
PID 3132 wrote to memory of 4940	3132	msdcsc.exe	93
PID 3132 wrote to memory of 4940	3132	msdcsc.exe	93
PID 4940 wrote to memory of 4556	4940	msdcsc.exe	94
PID 4940 wrote to memory of 4556	4940	msdcsc.exe	94
PID 4940 wrote to memory of 4556	4940	msdcsc.exe	94
PID 4940 wrote to memory of 4556	4940	msdcsc.exe	94
PID 4940 wrote to memory of 4556	4940	msdcsc.exe	94
PID 4940 wrote to memory of 4556	4940	msdcsc.exe	94
PID 4940 wrote to memory of 4556	4940	msdcsc.exe	94
PID 4940 wrote to memory of 4556	4940	msdcsc.exe	94
PID 4940 wrote to memory of 4556	4940	msdcsc.exe	94
PID 4940 wrote to memory of 4556	4940	msdcsc.exe	94
PID 4940 wrote to memory of 4556	4940	msdcsc.exe	94
PID 4940 wrote to memory of 4556	4940	msdcsc.exe	94
PID 4940 wrote to memory of 4556	4940	msdcsc.exe	94
PID 4940 wrote to memory of 4556	4940	msdcsc.exe	94
PID 4940 wrote to memory of 4556	4940	msdcsc.exe	94
PID 4940 wrote to memory of 4556	4940	msdcsc.exe	94
PID 4940 wrote to memory of 4556	4940	msdcsc.exe	94
PID 4940 wrote to memory of 4556	4940	msdcsc.exe	94

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2820	attrib.exe
1564	attrib.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6fb02131b924636a32833678fcb08690.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6fb02131b924636a32833678fcb08690.exe"
1⤵
- Drops startup file
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:876
- C:\Users\Admin\AppData\Roaming\InstallDir\help.exe
  C:\Users\Admin\AppData\Roaming\InstallDir\help.exe
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2640
- - C:\Users\Admin\AppData\Roaming\InstallDir\help.exe
    C:\Users\Admin\AppData\Roaming\InstallDir\help.exe
    3⤵
    - Modifies WinLogon for persistence
    - Checks computer location settings
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:64
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Roaming\InstallDir\help.exe" +s +h
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2620
    - - C:\Windows\SysWOW64\attrib.exe
        
        attrib "C:\Users\Admin\AppData\Roaming\InstallDir\help.exe" +s +h
        5⤵
        Sets file to hidden
        System Location Discovery: System Language Discovery
        Views/modifies file attributes
        
        PID:2820
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Roaming\InstallDir" +s +h
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:848
    - - C:\Windows\SysWOW64\attrib.exe
        
        attrib "C:\Users\Admin\AppData\Roaming\InstallDir" +s +h
        5⤵
        Sets file to hidden
        System Location Discovery: System Language Discovery
        Views/modifies file attributes
        
        PID:1564
  - - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      4⤵
      Drops startup file
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:3132
    - - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
        
        C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:4940
      - C:\Windows\SysWOW64\notepad.exe
        
        notepad
        6⤵
        System Location Discovery: System Language Discovery
        
        PID:4556

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\InstallDir\help.exe

Filesize
730KB

MD5
6fb02131b924636a32833678fcb08690

SHA1
d9f298aaf401048496632a357dbe7d6686719caf

SHA256
256844f7896d110ca48165fd4171b6a0f74c53348847a2d53439ac69a19cbf34

SHA512
e7fa9e33f926f0bd7f676de7a3cc07dd97b178967a23914290fa85ed17fcd9ab51673997b60808572e1f2e8469dd7a031482d11c29c54873e4984ebfe62f8b4e

Download Submit
memory/64-14-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/64-12-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/64-15-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/64-16-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/64-17-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/64-30-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/876-0-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/4556-40-0x0000000000F90000-0x0000000000F91000-memory.dmp

Filesize
4KB

Download
memory/4940-41-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4940-48-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4940-42-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4940-38-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4940-43-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4940-44-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4940-45-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4940-46-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4940-47-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4940-39-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4940-49-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4940-50-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4940-51-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4940-52-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4940-53-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4940-54-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4940-55-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads