darkcomet | fb70c47c8529f76dee44b8150a2153885a7454eef5a3e3882ef223e2a3a0be18

Analysis

max time kernel
148s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-11-2024 12:32

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General

Target

85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Size

659KB
MD5

85711a0c9404a10144d98d2c62d3c28e
SHA1

93ae351e67e2aa5747b151f0bdfef627ad0b1b5a
SHA256

fb70c47c8529f76dee44b8150a2153885a7454eef5a3e3882ef223e2a3a0be18
SHA512

66e747970f905864f3534cb090a88abca135347d096bf090ce664a5581093cdab2e99ed6f556c7f09d12c8a616fe5c800f93c910193644635dfa21ab6e2708b6
SSDEEP

12288:B9AFlAd0Z+89cxTGzO4AucTD8QP2lmFSrVs9LqnKZ:3AQ6Zx9cxTmOrucTIEFSpOG4

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:\\Windupdt\\winupdate.exe"	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	explorer.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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	notepad.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3844 set thread context of 4960	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	85

System Location Discovery: System Language Discovery 1 TTPs 3 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	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Checks processor information in registry 2 TTPs 8 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	explorer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeSecurityPrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeSystemtimePrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeBackupPrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeRestorePrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeShutdownPrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeDebugPrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeUndockPrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeManageVolumePrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeImpersonatePrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: 33	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: 34	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: 35	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: 36	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4960	explorer.exe
Token: SeSecurityPrivilege	4960	explorer.exe
Token: SeTakeOwnershipPrivilege	4960	explorer.exe
Token: SeLoadDriverPrivilege	4960	explorer.exe
Token: SeSystemProfilePrivilege	4960	explorer.exe
Token: SeSystemtimePrivilege	4960	explorer.exe
Token: SeProfSingleProcessPrivilege	4960	explorer.exe
Token: SeIncBasePriorityPrivilege	4960	explorer.exe
Token: SeCreatePagefilePrivilege	4960	explorer.exe
Token: SeBackupPrivilege	4960	explorer.exe
Token: SeRestorePrivilege	4960	explorer.exe
Token: SeShutdownPrivilege	4960	explorer.exe
Token: SeDebugPrivilege	4960	explorer.exe
Token: SeSystemEnvironmentPrivilege	4960	explorer.exe
Token: SeChangeNotifyPrivilege	4960	explorer.exe
Token: SeRemoteShutdownPrivilege	4960	explorer.exe
Token: SeUndockPrivilege	4960	explorer.exe
Token: SeManageVolumePrivilege	4960	explorer.exe
Token: SeImpersonatePrivilege	4960	explorer.exe
Token: SeCreateGlobalPrivilege	4960	explorer.exe
Token: 33	4960	explorer.exe
Token: 34	4960	explorer.exe
Token: 35	4960	explorer.exe
Token: 36	4960	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4960	explorer.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 3900	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	84
PID 3844 wrote to memory of 4960	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	85
PID 3844 wrote to memory of 4960	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	85
PID 3844 wrote to memory of 4960	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	85
PID 3844 wrote to memory of 4960	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	85
PID 3844 wrote to memory of 4960	3844	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3844
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  PID:3900
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  - Checks BIOS information in registry
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4960

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

memory/3844-0-0x00000000021F0000-0x00000000021F1000-memory.dmp

Filesize
4KB

Download
memory/3844-9-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/3900-2-0x00000000010F0000-0x00000000010F1000-memory.dmp

Filesize
4KB

Download
memory/4960-6-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/4960-7-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/4960-10-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/4960-11-0x0000000002E00000-0x0000000002E01000-memory.dmp

Filesize
4KB

Download
memory/4960-8-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/4960-12-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/4960-13-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/4960-14-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/4960-15-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads