darkcomet | fd0bc2df815d342445a00082ed37e3c812543a0f19d401a242325026da9b5394

Analysis

max time kernel
149s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-10-2024 07:45

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General

Target

468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Size

801KB
MD5

468f7f133cbf6ab448d69e92a108f594
SHA1

c56441331a5d638e78da531d1353c16f14ca2594
SHA256

fd0bc2df815d342445a00082ed37e3c812543a0f19d401a242325026da9b5394
SHA512

bd2dff79fdd7a3a82cd99cd3957653c361a9f601a0a5c91f93f368d5f5a6db576fcfbdd046cc9fb9f636eb6dff56fe8e0234f8fdb9583b056ebab0cce2c4a0fe
SSDEEP

24576:4rkqwP0YBImHURqUO+1efRxvSW5VXwaOY5:4rkqLSIm1UZqRSkVAaOC

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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windupdt\\winupdate.exe"	468f7f133cbf6ab448d69e92a108f594_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

Processes:

468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exewinupdate.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	winupdate.exe

Executes dropped EXE 2 IoCs

Processes:

winupdate.exewinupdate.exe

pid	Process
2680	winupdate.exe
2912	winupdate.exe

Loads dropped DLL 8 IoCs

Processes:

468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exewinupdate.exewinupdate.exe

pid	Process
1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
2680	winupdate.exe
2680	winupdate.exe
2680	winupdate.exe
2680	winupdate.exe
2912	winupdate.exe
2912	winupdate.exe
2912	winupdate.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exewinupdate.exe

description	pid	Process	procid_target
PID 2340 set thread context of 1944	2340	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	30
PID 2680 set thread context of 2912	2680	winupdate.exe	32

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:

468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exewinupdate.exewinupdate.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.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

Processes:

468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exewinupdate.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	winupdate.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exewinupdate.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	winupdate.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

winupdate.exe

pid	Process
2912	winupdate.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exewinupdate.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeSecurityPrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeBackupPrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeRestorePrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeShutdownPrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeDebugPrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeUndockPrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: 33	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: 34	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: 35	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2912	winupdate.exe
Token: SeSecurityPrivilege	2912	winupdate.exe
Token: SeTakeOwnershipPrivilege	2912	winupdate.exe
Token: SeLoadDriverPrivilege	2912	winupdate.exe
Token: SeSystemProfilePrivilege	2912	winupdate.exe
Token: SeSystemtimePrivilege	2912	winupdate.exe
Token: SeProfSingleProcessPrivilege	2912	winupdate.exe
Token: SeIncBasePriorityPrivilege	2912	winupdate.exe
Token: SeCreatePagefilePrivilege	2912	winupdate.exe
Token: SeBackupPrivilege	2912	winupdate.exe
Token: SeRestorePrivilege	2912	winupdate.exe
Token: SeShutdownPrivilege	2912	winupdate.exe
Token: SeDebugPrivilege	2912	winupdate.exe
Token: SeSystemEnvironmentPrivilege	2912	winupdate.exe
Token: SeChangeNotifyPrivilege	2912	winupdate.exe
Token: SeRemoteShutdownPrivilege	2912	winupdate.exe
Token: SeUndockPrivilege	2912	winupdate.exe
Token: SeManageVolumePrivilege	2912	winupdate.exe
Token: SeImpersonatePrivilege	2912	winupdate.exe
Token: SeCreateGlobalPrivilege	2912	winupdate.exe
Token: 33	2912	winupdate.exe
Token: 34	2912	winupdate.exe
Token: 35	2912	winupdate.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exewinupdate.exe

pid	Process
2340	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
2680	winupdate.exe

Suspicious use of WriteProcessMemory 36 IoCs

Processes:

468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exewinupdate.exe

description	pid	Process	procid_target
PID 2340 wrote to memory of 1944	2340	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	30
PID 2340 wrote to memory of 1944	2340	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	30
PID 2340 wrote to memory of 1944	2340	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	30
PID 2340 wrote to memory of 1944	2340	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	30
PID 2340 wrote to memory of 1944	2340	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	30
PID 2340 wrote to memory of 1944	2340	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	30
PID 2340 wrote to memory of 1944	2340	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	30
PID 2340 wrote to memory of 1944	2340	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	30
PID 2340 wrote to memory of 1944	2340	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	30
PID 2340 wrote to memory of 1944	2340	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	30
PID 2340 wrote to memory of 1944	2340	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	30
PID 2340 wrote to memory of 1944	2340	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	30
PID 2340 wrote to memory of 1944	2340	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	30
PID 1944 wrote to memory of 2680	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	31
PID 1944 wrote to memory of 2680	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	31
PID 1944 wrote to memory of 2680	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	31
PID 1944 wrote to memory of 2680	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	31
PID 1944 wrote to memory of 2680	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	31
PID 1944 wrote to memory of 2680	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	31
PID 1944 wrote to memory of 2680	1944	468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe	31
PID 2680 wrote to memory of 2912	2680	winupdate.exe	32
PID 2680 wrote to memory of 2912	2680	winupdate.exe	32
PID 2680 wrote to memory of 2912	2680	winupdate.exe	32
PID 2680 wrote to memory of 2912	2680	winupdate.exe	32
PID 2680 wrote to memory of 2912	2680	winupdate.exe	32
PID 2680 wrote to memory of 2912	2680	winupdate.exe	32
PID 2680 wrote to memory of 2912	2680	winupdate.exe	32
PID 2680 wrote to memory of 2912	2680	winupdate.exe	32
PID 2680 wrote to memory of 2912	2680	winupdate.exe	32
PID 2680 wrote to memory of 2912	2680	winupdate.exe	32
PID 2680 wrote to memory of 2912	2680	winupdate.exe	32
PID 2680 wrote to memory of 2912	2680	winupdate.exe	32
PID 2680 wrote to memory of 2912	2680	winupdate.exe	32
PID 2680 wrote to memory of 2912	2680	winupdate.exe	32
PID 2680 wrote to memory of 2912	2680	winupdate.exe	32
PID 2680 wrote to memory of 2912	2680	winupdate.exe	32

C:\Users\Admin\AppData\Local\Temp\468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Users\Admin\AppData\Local\Temp\468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\468f7f133cbf6ab448d69e92a108f594_JaffaCakes118.exe
  2⤵
  - Modifies WinLogon for persistence
  - Checks BIOS information in registry
  - Loads dropped DLL
  - Adds Run key to start application
  - 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:1944
- - C:\Windupdt\winupdate.exe
    "C:\Windupdt\winupdate.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2680
  - - C:\Windupdt\winupdate.exe
      C:\Windupdt\winupdate.exe
      4⤵
      Checks BIOS information in registry
      Executes dropped EXE
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Enumerates system info in registry
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      PID:2912

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

\Windupdt\winupdate.exe

Filesize
801KB

MD5
468f7f133cbf6ab448d69e92a108f594

SHA1
c56441331a5d638e78da531d1353c16f14ca2594

SHA256
fd0bc2df815d342445a00082ed37e3c812543a0f19d401a242325026da9b5394

SHA512
bd2dff79fdd7a3a82cd99cd3957653c361a9f601a0a5c91f93f368d5f5a6db576fcfbdd046cc9fb9f636eb6dff56fe8e0234f8fdb9583b056ebab0cce2c4a0fe

Download Submit
memory/1944-6-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/1944-22-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/1944-21-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/1944-14-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/1944-13-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/1944-11-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/1944-36-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/1944-2-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/1944-4-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/1944-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1944-20-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/1944-23-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/1944-25-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/1944-26-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/1944-24-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/1944-16-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/1944-9-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-82-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-69-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-64-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-70-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-71-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-74-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-73-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-72-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-75-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-77-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-79-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-81-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-61-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2912-84-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-86-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download