darkcomet | fb70c47c8529f76dee44b8150a2153885a7454eef5a3e3882ef223e2a3a0be18

Analysis

max time kernel
131s
max time network
142s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	notepad.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 880 set thread context of 2744	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	31

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	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.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\ProcessorNameString	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
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

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 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeSecurityPrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeSystemtimePrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeBackupPrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeRestorePrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeShutdownPrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeDebugPrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeUndockPrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeManageVolumePrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeImpersonatePrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: 33	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: 34	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: 35	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2744	explorer.exe
Token: SeSecurityPrivilege	2744	explorer.exe
Token: SeTakeOwnershipPrivilege	2744	explorer.exe
Token: SeLoadDriverPrivilege	2744	explorer.exe
Token: SeSystemProfilePrivilege	2744	explorer.exe
Token: SeSystemtimePrivilege	2744	explorer.exe
Token: SeProfSingleProcessPrivilege	2744	explorer.exe
Token: SeIncBasePriorityPrivilege	2744	explorer.exe
Token: SeCreatePagefilePrivilege	2744	explorer.exe
Token: SeBackupPrivilege	2744	explorer.exe
Token: SeRestorePrivilege	2744	explorer.exe
Token: SeShutdownPrivilege	2744	explorer.exe
Token: SeDebugPrivilege	2744	explorer.exe
Token: SeSystemEnvironmentPrivilege	2744	explorer.exe
Token: SeChangeNotifyPrivilege	2744	explorer.exe
Token: SeRemoteShutdownPrivilege	2744	explorer.exe
Token: SeUndockPrivilege	2744	explorer.exe
Token: SeManageVolumePrivilege	2744	explorer.exe
Token: SeImpersonatePrivilege	2744	explorer.exe
Token: SeCreateGlobalPrivilege	2744	explorer.exe
Token: 33	2744	explorer.exe
Token: 34	2744	explorer.exe
Token: 35	2744	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2744	explorer.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2688	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	30
PID 880 wrote to memory of 2744	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	31
PID 880 wrote to memory of 2744	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	31
PID 880 wrote to memory of 2744	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	31
PID 880 wrote to memory of 2744	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	31
PID 880 wrote to memory of 2744	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	31
PID 880 wrote to memory of 2744	880	85711a0c9404a10144d98d2c62d3c28e_JaffaCakes118.exe	31

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:880
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  PID:2688
- 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:2744

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/880-34-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/880-0-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2688-2-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2688-25-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2744-33-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2744-36-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2744-37-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2744-32-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2744-28-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2744-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2744-38-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download
memory/2744-40-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2744-41-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2744-39-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2744-42-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2744-43-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads