darkcomet | f1801785e69750b6424c95a8cafaeebca9c9d69a99906a311219bdbf38609c3c

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-10-2024 03:27

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General

Target

7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Size

504KB
MD5

7ba3d3b776ca05b6ac27ae82d86520de
SHA1

5020d1290bbf735c9438be0425534bf6d2f216ec
SHA256

f1801785e69750b6424c95a8cafaeebca9c9d69a99906a311219bdbf38609c3c
SHA512

c6b600de831478352dd76a9b42dcaba2c139c47db7fd63a5f345fee6a1ee6cdcd5c84685839114e348a7d1e97dfb7f07c46429d8bc675c64085c4272b80535fe
SSDEEP

12288:+/OpE4MDdbQzd9mLK20LR5RmZ21WhKERSiGrLm6Z3NnC:+/OpE4MDd6dc228X1WAERSfrLm6Z3NC

Score

10^/10

darkcomet úçôþ ñóæá çááé discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

ÚÇÔÞ ÑÓæá ÇááÉ

elnashar000.no-ip.info:1604

Mutex

DC_MUTEX-MFM91SY

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
Nk3yaNEVKDGC
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

Processes:

7ba3d3b776ca05b6ac27ae82d86520de_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\\Documents\\MSDCSC\\msdcsc.exe"	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.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:

7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

Processes:

msdcsc.exemsdcsc.exe

pid	Process
3868	msdcsc.exe
2948	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exemsdcsc.exe

description	pid	Process	procid_target
PID 4068 set thread context of 400	4068	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe	85
PID 4068 set thread context of 0	4068	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
PID 3868 set thread context of 2948	3868	msdcsc.exe	89
PID 3868 set thread context of 0	3868	msdcsc.exe

UPX packed file 27 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/400-3-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/400-5-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/400-6-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/400-9-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/400-8-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/400-10-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-32-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-33-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-35-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-34-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/400-40-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-41-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-42-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-43-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-44-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-45-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-46-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-47-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-48-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-49-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-50-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-51-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-52-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-53-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-54-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-55-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2948-56-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

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 4 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:

7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exemsdcsc.exemsdcsc.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeSecurityPrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeSystemtimePrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeBackupPrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeRestorePrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeShutdownPrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeDebugPrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeUndockPrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeManageVolumePrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeImpersonatePrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: 33	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: 34	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: 35	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: 36	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2948	msdcsc.exe
Token: SeSecurityPrivilege	2948	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2948	msdcsc.exe
Token: SeLoadDriverPrivilege	2948	msdcsc.exe
Token: SeSystemProfilePrivilege	2948	msdcsc.exe
Token: SeSystemtimePrivilege	2948	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2948	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2948	msdcsc.exe
Token: SeCreatePagefilePrivilege	2948	msdcsc.exe
Token: SeBackupPrivilege	2948	msdcsc.exe
Token: SeRestorePrivilege	2948	msdcsc.exe
Token: SeShutdownPrivilege	2948	msdcsc.exe
Token: SeDebugPrivilege	2948	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2948	msdcsc.exe
Token: SeChangeNotifyPrivilege	2948	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2948	msdcsc.exe
Token: SeUndockPrivilege	2948	msdcsc.exe
Token: SeManageVolumePrivilege	2948	msdcsc.exe
Token: SeImpersonatePrivilege	2948	msdcsc.exe
Token: SeCreateGlobalPrivilege	2948	msdcsc.exe
Token: 33	2948	msdcsc.exe
Token: 34	2948	msdcsc.exe
Token: 35	2948	msdcsc.exe
Token: 36	2948	msdcsc.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exemsdcsc.exemsdcsc.exe

pid	Process
4068	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
3868	msdcsc.exe
2948	msdcsc.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exemsdcsc.exe

description	pid	Process	procid_target
PID 4068 wrote to memory of 400	4068	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe	85
PID 4068 wrote to memory of 400	4068	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe	85
PID 4068 wrote to memory of 400	4068	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe	85
PID 4068 wrote to memory of 400	4068	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe	85
PID 4068 wrote to memory of 400	4068	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe	85
PID 4068 wrote to memory of 400	4068	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe	85
PID 4068 wrote to memory of 400	4068	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe	85
PID 4068 wrote to memory of 400	4068	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe	85
PID 4068 wrote to memory of 0	4068	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
PID 4068 wrote to memory of 0	4068	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
PID 4068 wrote to memory of 0	4068	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
PID 4068 wrote to memory of 0	4068	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
PID 4068 wrote to memory of 0	4068	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
PID 400 wrote to memory of 3868	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe	88
PID 400 wrote to memory of 3868	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe	88
PID 400 wrote to memory of 3868	400	7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe	88
PID 3868 wrote to memory of 2948	3868	msdcsc.exe	89
PID 3868 wrote to memory of 2948	3868	msdcsc.exe	89
PID 3868 wrote to memory of 2948	3868	msdcsc.exe	89
PID 3868 wrote to memory of 2948	3868	msdcsc.exe	89
PID 3868 wrote to memory of 2948	3868	msdcsc.exe	89
PID 3868 wrote to memory of 2948	3868	msdcsc.exe	89
PID 3868 wrote to memory of 2948	3868	msdcsc.exe	89
PID 3868 wrote to memory of 2948	3868	msdcsc.exe	89
PID 3868 wrote to memory of 0	3868	msdcsc.exe
PID 3868 wrote to memory of 0	3868	msdcsc.exe
PID 3868 wrote to memory of 0	3868	msdcsc.exe
PID 3868 wrote to memory of 0	3868	msdcsc.exe
PID 3868 wrote to memory of 0	3868	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4068
- C:\Users\Admin\AppData\Local\Temp\7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\7ba3d3b776ca05b6ac27ae82d86520de_JaffaCakes118.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:400
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3868
  - - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2948

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

Replay Monitor

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Downloads

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

Filesize
504KB

MD5
7ba3d3b776ca05b6ac27ae82d86520de

SHA1
5020d1290bbf735c9438be0425534bf6d2f216ec

SHA256
f1801785e69750b6424c95a8cafaeebca9c9d69a99906a311219bdbf38609c3c

SHA512
c6b600de831478352dd76a9b42dcaba2c139c47db7fd63a5f345fee6a1ee6cdcd5c84685839114e348a7d1e97dfb7f07c46429d8bc675c64085c4272b80535fe

Download Submit
memory/400-3-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/400-5-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/400-6-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/400-40-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/400-9-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/400-8-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/400-10-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-41-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-49-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-32-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-33-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-35-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-34-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-56-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-55-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-54-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-42-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-43-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-44-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-45-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-46-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-47-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-48-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-53-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-50-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-51-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-52-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3868-24-0x0000000000400000-0x000000000064A000-memory.dmp

Filesize
2.3MB

Download
memory/3868-37-0x0000000000400000-0x000000000064A000-memory.dmp

Filesize
2.3MB

Download
memory/4068-0-0x0000000000400000-0x000000000064A000-memory.dmp

Filesize
2.3MB

Download
memory/4068-7-0x0000000000400000-0x000000000064A000-memory.dmp

Filesize
2.3MB

Download