darkcomet | b67a2d9ba74eb39bd04f404f8e39c4016216f60fb326cacd4351e786b9661e2a

Analysis

max time kernel
148s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11/10/2024, 06:29

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General

Target

33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Size

321KB
MD5

33aab5133ea7dc8b526b78642ede090d
SHA1

79994dc626f8ed2655de4d3bf8d9c47c03b22757
SHA256

b67a2d9ba74eb39bd04f404f8e39c4016216f60fb326cacd4351e786b9661e2a
SHA512

feaa7ff6bcd8d9e7fef4d497730212243db39816aa6a5ec5f980a07a7226f1b004e30c292b6e45f7392e85a43f11524cd152ec4ef9e610fff490e4f78316263d
SSDEEP

6144:6dqJs6cTb5f0GXT4JQdyUwQj9LJNFWPBxwvj6BdQTeciI4ru80bn:6Ui6cTb58GXwQdyAL4y6DQTL4r0L

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

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\Windupdt\\winupdate.exe"	33aab5133ea7dc8b526b78642ede090d_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	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	explorer.exe

Deletes itself 1 IoCs

pid	Process
4124	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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windows\\system32\\Windupdt\\winupdate.exe"	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windows\\system32\\Windupdt\\winupdate.exe"	notepad.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Windupdt\winupdate.exe	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\Windupdt\winupdate.exe	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\Windupdt\	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\Windupdt\winupdate.exe	notepad.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1528 set thread context of 5072	1528	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	84
PID 5072 set thread context of 4848	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	88
PID 4848 set thread context of 1856	4848	explorer.exe	90

System Location Discovery: System Language Discovery 1 TTPs 6 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	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	33aab5133ea7dc8b526b78642ede090d_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

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	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1856	explorer.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeSecurityPrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeSystemtimePrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeBackupPrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeRestorePrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeShutdownPrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeDebugPrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeUndockPrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeManageVolumePrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeImpersonatePrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: 33	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: 34	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: 35	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: 36	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	1856	explorer.exe
Token: SeSecurityPrivilege	1856	explorer.exe
Token: SeTakeOwnershipPrivilege	1856	explorer.exe
Token: SeLoadDriverPrivilege	1856	explorer.exe
Token: SeSystemProfilePrivilege	1856	explorer.exe
Token: SeSystemtimePrivilege	1856	explorer.exe
Token: SeProfSingleProcessPrivilege	1856	explorer.exe
Token: SeIncBasePriorityPrivilege	1856	explorer.exe
Token: SeCreatePagefilePrivilege	1856	explorer.exe
Token: SeBackupPrivilege	1856	explorer.exe
Token: SeRestorePrivilege	1856	explorer.exe
Token: SeShutdownPrivilege	1856	explorer.exe
Token: SeDebugPrivilege	1856	explorer.exe
Token: SeSystemEnvironmentPrivilege	1856	explorer.exe
Token: SeChangeNotifyPrivilege	1856	explorer.exe
Token: SeRemoteShutdownPrivilege	1856	explorer.exe
Token: SeUndockPrivilege	1856	explorer.exe
Token: SeManageVolumePrivilege	1856	explorer.exe
Token: SeImpersonatePrivilege	1856	explorer.exe
Token: SeCreateGlobalPrivilege	1856	explorer.exe
Token: 33	1856	explorer.exe
Token: 34	1856	explorer.exe
Token: 35	1856	explorer.exe
Token: 36	1856	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1856	explorer.exe

Suspicious use of WriteProcessMemory 55 IoCs

description	pid	Process	procid_target
PID 1528 wrote to memory of 5072	1528	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	84
PID 1528 wrote to memory of 5072	1528	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	84
PID 1528 wrote to memory of 5072	1528	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	84
PID 1528 wrote to memory of 5072	1528	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	84
PID 1528 wrote to memory of 5072	1528	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	84
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 2752	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	87
PID 5072 wrote to memory of 4848	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	88
PID 5072 wrote to memory of 4848	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	88
PID 5072 wrote to memory of 4848	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	88
PID 5072 wrote to memory of 4848	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	88
PID 5072 wrote to memory of 4848	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	88
PID 5072 wrote to memory of 4124	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	89
PID 5072 wrote to memory of 4124	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	89
PID 5072 wrote to memory of 4124	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	89
PID 5072 wrote to memory of 4124	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	89
PID 5072 wrote to memory of 4124	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	89
PID 5072 wrote to memory of 4124	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	89
PID 5072 wrote to memory of 4124	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	89
PID 5072 wrote to memory of 4124	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	89
PID 5072 wrote to memory of 4124	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	89
PID 5072 wrote to memory of 4124	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	89
PID 5072 wrote to memory of 4124	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	89
PID 5072 wrote to memory of 4124	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	89
PID 5072 wrote to memory of 4124	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	89
PID 5072 wrote to memory of 4124	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	89
PID 5072 wrote to memory of 4124	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	89
PID 5072 wrote to memory of 4124	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	89
PID 5072 wrote to memory of 4124	5072	33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe	89
PID 4848 wrote to memory of 1856	4848	explorer.exe	90
PID 4848 wrote to memory of 1856	4848	explorer.exe	90
PID 4848 wrote to memory of 1856	4848	explorer.exe	90
PID 4848 wrote to memory of 1856	4848	explorer.exe	90
PID 4848 wrote to memory of 1856	4848	explorer.exe	90

C:\Users\Admin\AppData\Local\Temp\33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1528
- C:\Users\Admin\AppData\Local\Temp\33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\33aab5133ea7dc8b526b78642ede090d_JaffaCakes118.exe
  2⤵
  - 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:5072
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - Adds Run key to start application
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    PID:2752
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\SysWOW64\explorer.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4848
  - - C:\Windows\SysWOW64\explorer.exe
      C:\Windows\SysWOW64\explorer.exe
      4⤵
      Checks BIOS information in registry
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Enumerates system info in registry
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1856
- - C:\Windows\SysWOW64\notepad.exe
    C:\Windows\SysWOW64\notepad.exe
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:4124

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/1856-17-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/1856-25-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/1856-23-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/1856-20-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/1856-22-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/1856-21-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/1856-19-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2752-6-0x0000000000980000-0x0000000000981000-memory.dmp

Filesize
4KB

Download
memory/4124-12-0x0000000001160000-0x0000000001161000-memory.dmp

Filesize
4KB

Download
memory/4848-18-0x0000000010000000-0x0000000010053000-memory.dmp

Filesize
332KB

Download
memory/4848-9-0x0000000010000000-0x0000000010053000-memory.dmp

Filesize
332KB

Download
memory/4848-13-0x0000000010000000-0x0000000010053000-memory.dmp

Filesize
332KB

Download
memory/4848-11-0x0000000010000000-0x0000000010053000-memory.dmp

Filesize
332KB

Download
memory/5072-15-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/5072-1-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/5072-4-0x0000000000710000-0x0000000000711000-memory.dmp

Filesize
4KB

Download
memory/5072-3-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/5072-2-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/5072-0-0x0000000013140000-0x00000000131F6000-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