darkcomet | ce06a4923747781a1ae4661de371c213b781ece0422ec440e45c5be9b2c4a843

Analysis

max time kernel
150s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
23-10-2024 18:57

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General

Target

705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Size

659KB
MD5

705da91f9eac280b9bac0ecaa6d94bd9
SHA1

136d2af9a65a4ab2752bdee12e635167a4fddee7
SHA256

ce06a4923747781a1ae4661de371c213b781ece0422ec440e45c5be9b2c4a843
SHA512

08299c81832f149beb7604e1e038684654882e1cf8f52d0d151913d6845118ce7725eb35ecc92b0209bc5b4b922f3d8b83ab7b6d66f2093414b7996a64c9d63a
SSDEEP

12288:h9AFlAd0Z+89cxTGzO4AucTD8QP2lmFSrVs9LqnKd:XAQ6Zx9cxTmOrucTIEFSpOGE

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:

705da91f9eac280b9bac0ecaa6d94bd9_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"	705da91f9eac280b9bac0ecaa6d94bd9_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:

705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exeexplorer.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	705da91f9eac280b9bac0ecaa6d94bd9_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

Processes:

705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exenotepad.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	notepad.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1740 set thread context of 2256	1740	705da91f9eac280b9bac0ecaa6d94bd9_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

Processes:

705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exenotepad.exeexplorer.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	705da91f9eac280b9bac0ecaa6d94bd9_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

Processes:

explorer.exe705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe

description	ioc	Process
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	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exeexplorer.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exeexplorer.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeSecurityPrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeBackupPrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeRestorePrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeShutdownPrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeDebugPrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeUndockPrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: 33	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: 34	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: 35	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2256	explorer.exe
Token: SeSecurityPrivilege	2256	explorer.exe
Token: SeTakeOwnershipPrivilege	2256	explorer.exe
Token: SeLoadDriverPrivilege	2256	explorer.exe
Token: SeSystemProfilePrivilege	2256	explorer.exe
Token: SeSystemtimePrivilege	2256	explorer.exe
Token: SeProfSingleProcessPrivilege	2256	explorer.exe
Token: SeIncBasePriorityPrivilege	2256	explorer.exe
Token: SeCreatePagefilePrivilege	2256	explorer.exe
Token: SeBackupPrivilege	2256	explorer.exe
Token: SeRestorePrivilege	2256	explorer.exe
Token: SeShutdownPrivilege	2256	explorer.exe
Token: SeDebugPrivilege	2256	explorer.exe
Token: SeSystemEnvironmentPrivilege	2256	explorer.exe
Token: SeChangeNotifyPrivilege	2256	explorer.exe
Token: SeRemoteShutdownPrivilege	2256	explorer.exe
Token: SeUndockPrivilege	2256	explorer.exe
Token: SeManageVolumePrivilege	2256	explorer.exe
Token: SeImpersonatePrivilege	2256	explorer.exe
Token: SeCreateGlobalPrivilege	2256	explorer.exe
Token: 33	2256	explorer.exe
Token: 34	2256	explorer.exe
Token: 35	2256	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

explorer.exe

pid	Process
2256	explorer.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2596	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	30
PID 1740 wrote to memory of 2256	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	31
PID 1740 wrote to memory of 2256	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	31
PID 1740 wrote to memory of 2256	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	31
PID 1740 wrote to memory of 2256	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	31
PID 1740 wrote to memory of 2256	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	31
PID 1740 wrote to memory of 2256	1740	705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\705da91f9eac280b9bac0ecaa6d94bd9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\705da91f9eac280b9bac0ecaa6d94bd9_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:1740
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  PID:2596
- 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:2256

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

C:\Windupdt\winupdate.exe

Filesize
659KB

MD5
705da91f9eac280b9bac0ecaa6d94bd9

SHA1
136d2af9a65a4ab2752bdee12e635167a4fddee7

SHA256
ce06a4923747781a1ae4661de371c213b781ece0422ec440e45c5be9b2c4a843

SHA512
08299c81832f149beb7604e1e038684654882e1cf8f52d0d151913d6845118ce7725eb35ecc92b0209bc5b4b922f3d8b83ab7b6d66f2093414b7996a64c9d63a

Download Submit
memory/1740-38-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/1740-0-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2256-39-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2256-40-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2256-34-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2256-32-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2256-30-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2256-46-0x0000000000430000-0x0000000000431000-memory.dmp

Filesize
4KB

Download
memory/2256-45-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2256-37-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2256-41-0x0000000000430000-0x0000000000431000-memory.dmp

Filesize
4KB

Download
memory/2256-44-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2256-42-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2256-43-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2596-27-0x0000000000210000-0x0000000000211000-memory.dmp

Filesize
4KB

Download
memory/2596-2-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download