darkcomet | 418740d0bbbdc900894a3de2b4c2896c2b4543193c0a3a51e0c7f0bcc8e16792

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-12-2024 09:23

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General

Target

e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Size

756KB
MD5

e5b8400ac68b0749202bb46d6d105f72
SHA1

6af923fd0225eaf469fd5d907c922cbbb53043fd
SHA256

418740d0bbbdc900894a3de2b4c2896c2b4543193c0a3a51e0c7f0bcc8e16792
SHA512

0adf194cc9923a64b1b59fc56d6d989d24cd853242b8bef421fc331a2f4d0a277e9e817f08516539f573005ec0e4d8802ccb3dbc1a1b8d1cb862e86a1699dda2
SSDEEP

12288:79HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hobZR7:1Z1xuVVjfFoynPaVBUR8f+kN10EBgZR7

Score

10^/10

darkcomet guest16 discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

jemjem787.no-ip.org:200

Mutex

DC_MUTEX-KPNBLJ3

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
KarCEp7ccZHl
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
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\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe

Modifies security service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	msdcsc.exe

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.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
5096	attrib.exe
2400	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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
3976	msdcsc.exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rundll32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	msdcsc.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3976	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeSecurityPrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeBackupPrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeRestorePrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeShutdownPrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeDebugPrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeUndockPrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: 33	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: 34	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: 35	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: 36	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3976	msdcsc.exe
Token: SeSecurityPrivilege	3976	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3976	msdcsc.exe
Token: SeLoadDriverPrivilege	3976	msdcsc.exe
Token: SeSystemProfilePrivilege	3976	msdcsc.exe
Token: SeSystemtimePrivilege	3976	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3976	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3976	msdcsc.exe
Token: SeCreatePagefilePrivilege	3976	msdcsc.exe
Token: SeBackupPrivilege	3976	msdcsc.exe
Token: SeRestorePrivilege	3976	msdcsc.exe
Token: SeShutdownPrivilege	3976	msdcsc.exe
Token: SeDebugPrivilege	3976	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3976	msdcsc.exe
Token: SeChangeNotifyPrivilege	3976	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3976	msdcsc.exe
Token: SeUndockPrivilege	3976	msdcsc.exe
Token: SeManageVolumePrivilege	3976	msdcsc.exe
Token: SeImpersonatePrivilege	3976	msdcsc.exe
Token: SeCreateGlobalPrivilege	3976	msdcsc.exe
Token: 33	3976	msdcsc.exe
Token: 34	3976	msdcsc.exe
Token: 35	3976	msdcsc.exe
Token: 36	3976	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3976	msdcsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 4688	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe	84
PID 1488 wrote to memory of 4688	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe	84
PID 1488 wrote to memory of 4688	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe	84
PID 1488 wrote to memory of 4056	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe	86
PID 1488 wrote to memory of 4056	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe	86
PID 1488 wrote to memory of 4056	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe	86
PID 4688 wrote to memory of 5096	4688	cmd.exe	88
PID 4688 wrote to memory of 5096	4688	cmd.exe	88
PID 4688 wrote to memory of 5096	4688	cmd.exe	88
PID 4056 wrote to memory of 2400	4056	cmd.exe	89
PID 4056 wrote to memory of 2400	4056	cmd.exe	89
PID 4056 wrote to memory of 2400	4056	cmd.exe	89
PID 1488 wrote to memory of 3976	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe	90
PID 1488 wrote to memory of 3976	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe	90
PID 1488 wrote to memory of 3976	1488	e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe	90
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91
PID 3976 wrote to memory of 3388	3976	msdcsc.exe	91

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
5096	attrib.exe
2400	attrib.exe

C:\Users\Admin\AppData\Local\Temp\e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e5b8400ac68b0749202bb46d6d105f72_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:1488
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4688
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\e5b8400ac68b0749202bb46d6d105f72_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:5096
- 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:4056
- - 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:2400
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
  2⤵
  - Modifies security service
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - 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:3976
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3388

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

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

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Downloads

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

Filesize
756KB

MD5
e5b8400ac68b0749202bb46d6d105f72

SHA1
6af923fd0225eaf469fd5d907c922cbbb53043fd

SHA256
418740d0bbbdc900894a3de2b4c2896c2b4543193c0a3a51e0c7f0bcc8e16792

SHA512
0adf194cc9923a64b1b59fc56d6d989d24cd853242b8bef421fc331a2f4d0a277e9e817f08516539f573005ec0e4d8802ccb3dbc1a1b8d1cb862e86a1699dda2

Download Submit
memory/1488-64-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1488-0-0x00000000023E0000-0x00000000023E1000-memory.dmp

Filesize
4KB

Download
memory/3388-63-0x0000000000910000-0x0000000000911000-memory.dmp

Filesize
4KB

Download
memory/3976-68-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3976-71-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3976-66-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3976-67-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3976-62-0x0000000002020000-0x0000000002021000-memory.dmp

Filesize
4KB

Download
memory/3976-69-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3976-70-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3976-65-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3976-72-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3976-73-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3976-74-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3976-75-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3976-76-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3976-77-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3976-78-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads