darkcomet | 57aba8fca0eaef60930e00e35d4943a818c38be090b087def2e7a0b60e12097d

Analysis

max time kernel
140s
max time network
142s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/01/2025, 14:24

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General

Target

JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Size

659KB
MD5

0e7e044feedd781cec748242d93c086d
SHA1

06707a12ade96eefad30e46001041ce89747e72d
SHA256

57aba8fca0eaef60930e00e35d4943a818c38be090b087def2e7a0b60e12097d
SHA512

c1346052bfb677473f2d7cfb5d70856ea93c9e012defbe9a6c9ca93c51f0f339f2029f086344ff8ed9f954cf46e79fb5c6785f6c03fbc971613f7550e1d8a8bd
SSDEEP

12288:B9AFlAd0Z+89cxTGzO4AucTD8QP2lmFSrVs9LqnKO:3AQ6Zx9cxTmOrucTIEFSpOGD

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:\\Windows\\system32\\Windowssupdate.exe"	JaffaCakes118_0e7e044feedd781cec748242d93c086d.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	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	explorer.exe

Deletes itself 1 IoCs

pid	Process
2812	notepad.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windows\\system32\\Windowssupdate.exe"	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windows\\system32\\Windowssupdate.exe"	notepad.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Windowssupdate.exe	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
File opened for modification	C:\Windows\SysWOW64\Windowssupdate.exe	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
File opened for modification	C:\Windows\SysWOW64\	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
File opened for modification	C:\Windows\SysWOW64\Windowssupdate.exe	notepad.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 584 set thread context of 2708	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	32

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.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	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	JaffaCakes118_0e7e044feedd781cec748242d93c086d.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	JaffaCakes118_0e7e044feedd781cec748242d93c086d.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	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeSecurityPrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeTakeOwnershipPrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeLoadDriverPrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeSystemProfilePrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeSystemtimePrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeProfSingleProcessPrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeIncBasePriorityPrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeCreatePagefilePrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeBackupPrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeRestorePrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeShutdownPrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeDebugPrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeSystemEnvironmentPrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeChangeNotifyPrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeRemoteShutdownPrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeUndockPrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeManageVolumePrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeImpersonatePrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeCreateGlobalPrivilege	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: 33	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: 34	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: 35	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
Token: SeIncreaseQuotaPrivilege	2708	explorer.exe
Token: SeSecurityPrivilege	2708	explorer.exe
Token: SeTakeOwnershipPrivilege	2708	explorer.exe
Token: SeLoadDriverPrivilege	2708	explorer.exe
Token: SeSystemProfilePrivilege	2708	explorer.exe
Token: SeSystemtimePrivilege	2708	explorer.exe
Token: SeProfSingleProcessPrivilege	2708	explorer.exe
Token: SeIncBasePriorityPrivilege	2708	explorer.exe
Token: SeCreatePagefilePrivilege	2708	explorer.exe
Token: SeBackupPrivilege	2708	explorer.exe
Token: SeRestorePrivilege	2708	explorer.exe
Token: SeShutdownPrivilege	2708	explorer.exe
Token: SeDebugPrivilege	2708	explorer.exe
Token: SeSystemEnvironmentPrivilege	2708	explorer.exe
Token: SeChangeNotifyPrivilege	2708	explorer.exe
Token: SeRemoteShutdownPrivilege	2708	explorer.exe
Token: SeUndockPrivilege	2708	explorer.exe
Token: SeManageVolumePrivilege	2708	explorer.exe
Token: SeImpersonatePrivilege	2708	explorer.exe
Token: SeCreateGlobalPrivilege	2708	explorer.exe
Token: 33	2708	explorer.exe
Token: 34	2708	explorer.exe
Token: 35	2708	explorer.exe

Suspicious use of WriteProcessMemory 48 IoCs

description	pid	Process	procid_target
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2132	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	31
PID 584 wrote to memory of 2708	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	32
PID 584 wrote to memory of 2708	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	32
PID 584 wrote to memory of 2708	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	32
PID 584 wrote to memory of 2708	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	32
PID 584 wrote to memory of 2708	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	32
PID 584 wrote to memory of 2708	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	32
PID 584 wrote to memory of 2812	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	33
PID 584 wrote to memory of 2812	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	33
PID 584 wrote to memory of 2812	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	33
PID 584 wrote to memory of 2812	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	33
PID 584 wrote to memory of 2812	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	33
PID 584 wrote to memory of 2812	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	33
PID 584 wrote to memory of 2812	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	33
PID 584 wrote to memory of 2812	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	33
PID 584 wrote to memory of 2812	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	33
PID 584 wrote to memory of 2812	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	33
PID 584 wrote to memory of 2812	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	33
PID 584 wrote to memory of 2812	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	33
PID 584 wrote to memory of 2812	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	33
PID 584 wrote to memory of 2812	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	33
PID 584 wrote to memory of 2812	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	33
PID 584 wrote to memory of 2812	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	33
PID 584 wrote to memory of 2812	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	33
PID 584 wrote to memory of 2812	584	JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e7e044feedd781cec748242d93c086d.exe"
1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Adds Run key to start application
- Drops file in System32 directory
- 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:584
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:2132
- 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
  PID:2708
- C:\Windows\SysWOW64\notepad.exe
  C:\Windows\SysWOW64\notepad.exe
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2812

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

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Downloads

C:\Windows\SysWOW64\Windowssupdate.exe

Filesize
659KB

MD5
0e7e044feedd781cec748242d93c086d

SHA1
06707a12ade96eefad30e46001041ce89747e72d

SHA256
57aba8fca0eaef60930e00e35d4943a818c38be090b087def2e7a0b60e12097d

SHA512
c1346052bfb677473f2d7cfb5d70856ea93c9e012defbe9a6c9ca93c51f0f339f2029f086344ff8ed9f954cf46e79fb5c6785f6c03fbc971613f7550e1d8a8bd

Download Submit
memory/584-58-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/584-0-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/2132-25-0x0000000000180000-0x0000000000181000-memory.dmp

Filesize
4KB

Download
memory/2132-2-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2708-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2708-28-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2708-32-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2708-54-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2708-55-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2708-33-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2708-59-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2708-60-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2708-62-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2812-53-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads