darkcomet | 56c74ddbfc9aa198469fb850087f4da61b84a6988b0785cdd77a106126088716

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-12-2024 09:20

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Size

742KB
MD5

d1b3081a636169e5848796b021d3a665
SHA1

c21354fb6d57025cf78858d6f56d7a50070bcc90
SHA256

56c74ddbfc9aa198469fb850087f4da61b84a6988b0785cdd77a106126088716
SHA512

db10e4e8db2d14c13ec350ae8528462cfdc2df5ac869a439572efaf7e0670563938eca6595ef2cb5bca6147b8bb1693337f3f1ba9122d55b3529de42b24fe3ba
SSDEEP

12288:wI7XNvs/CX0dSTw5ROPcE1l3EOwQEtCFCCS9pCc4RUOoOMTozFrx4JLNuUGh2lAY:HvsKX0EwiPcKl3utCFdbcrOoOMarxoc

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"	d1b3081a636169e5848796b021d3a665_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	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	winupdate.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
4272	winupdate.exe
3052	winupdate.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4368 set thread context of 3648	4368	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	82
PID 4272 set thread context of 3052	4272	winupdate.exe	85

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1b3081a636169e5848796b021d3a665_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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	d1b3081a636169e5848796b021d3a665_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

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	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	winupdate.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeSecurityPrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeSystemtimePrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeBackupPrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeRestorePrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeShutdownPrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeDebugPrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeUndockPrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeManageVolumePrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeImpersonatePrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: 33	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: 34	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: 35	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: 36	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3052	winupdate.exe
Token: SeSecurityPrivilege	3052	winupdate.exe
Token: SeTakeOwnershipPrivilege	3052	winupdate.exe
Token: SeLoadDriverPrivilege	3052	winupdate.exe
Token: SeSystemProfilePrivilege	3052	winupdate.exe
Token: SeSystemtimePrivilege	3052	winupdate.exe
Token: SeProfSingleProcessPrivilege	3052	winupdate.exe
Token: SeIncBasePriorityPrivilege	3052	winupdate.exe
Token: SeCreatePagefilePrivilege	3052	winupdate.exe
Token: SeBackupPrivilege	3052	winupdate.exe
Token: SeRestorePrivilege	3052	winupdate.exe
Token: SeShutdownPrivilege	3052	winupdate.exe
Token: SeDebugPrivilege	3052	winupdate.exe
Token: SeSystemEnvironmentPrivilege	3052	winupdate.exe
Token: SeChangeNotifyPrivilege	3052	winupdate.exe
Token: SeRemoteShutdownPrivilege	3052	winupdate.exe
Token: SeUndockPrivilege	3052	winupdate.exe
Token: SeManageVolumePrivilege	3052	winupdate.exe
Token: SeImpersonatePrivilege	3052	winupdate.exe
Token: SeCreateGlobalPrivilege	3052	winupdate.exe
Token: 33	3052	winupdate.exe
Token: 34	3052	winupdate.exe
Token: 35	3052	winupdate.exe
Token: 36	3052	winupdate.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3052	winupdate.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 4368 wrote to memory of 3648	4368	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	82
PID 4368 wrote to memory of 3648	4368	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	82
PID 4368 wrote to memory of 3648	4368	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	82
PID 4368 wrote to memory of 3648	4368	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	82
PID 4368 wrote to memory of 3648	4368	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	82
PID 4368 wrote to memory of 3648	4368	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	82
PID 4368 wrote to memory of 3648	4368	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	82
PID 4368 wrote to memory of 3648	4368	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	82
PID 4368 wrote to memory of 3648	4368	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	82
PID 4368 wrote to memory of 3648	4368	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	82
PID 4368 wrote to memory of 3648	4368	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	82
PID 4368 wrote to memory of 3648	4368	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	82
PID 4368 wrote to memory of 3648	4368	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	82
PID 3648 wrote to memory of 2260	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	83
PID 3648 wrote to memory of 2260	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	83
PID 3648 wrote to memory of 2260	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	83
PID 3648 wrote to memory of 4272	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	84
PID 3648 wrote to memory of 4272	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	84
PID 3648 wrote to memory of 4272	3648	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	84
PID 4272 wrote to memory of 3052	4272	winupdate.exe	85
PID 4272 wrote to memory of 3052	4272	winupdate.exe	85
PID 4272 wrote to memory of 3052	4272	winupdate.exe	85
PID 4272 wrote to memory of 3052	4272	winupdate.exe	85
PID 4272 wrote to memory of 3052	4272	winupdate.exe	85
PID 4272 wrote to memory of 3052	4272	winupdate.exe	85
PID 4272 wrote to memory of 3052	4272	winupdate.exe	85
PID 4272 wrote to memory of 3052	4272	winupdate.exe	85
PID 4272 wrote to memory of 3052	4272	winupdate.exe	85
PID 4272 wrote to memory of 3052	4272	winupdate.exe	85
PID 4272 wrote to memory of 3052	4272	winupdate.exe	85
PID 4272 wrote to memory of 3052	4272	winupdate.exe	85
PID 4272 wrote to memory of 3052	4272	winupdate.exe	85
PID 3052 wrote to memory of 380	3052	winupdate.exe	86
PID 3052 wrote to memory of 380	3052	winupdate.exe	86
PID 3052 wrote to memory of 380	3052	winupdate.exe	86

C:\Users\Admin\AppData\Local\Temp\d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4368
- C:\Users\Admin\AppData\Local\Temp\d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Checks BIOS information in registry
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3648
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\SysWOW64\explorer.exe"
    3⤵
    PID:2260
- - C:\Windupdt\winupdate.exe
    "C:\Windupdt\winupdate.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4272
  - - C:\Windupdt\winupdate.exe
      "C:\Windupdt\winupdate.exe"
      4⤵
      Checks BIOS information in registry
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Enumerates system info in registry
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:3052
    - - C:\Windows\SysWOW64\explorer.exe
        
        "C:\Windows\SysWOW64\explorer.exe"
        5⤵
        
        PID:380

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

Loading Replay Monitor...

Downloads

C:\Windupdt\winupdate.exe

Filesize
742KB

MD5
d1b3081a636169e5848796b021d3a665

SHA1
c21354fb6d57025cf78858d6f56d7a50070bcc90

SHA256
56c74ddbfc9aa198469fb850087f4da61b84a6988b0785cdd77a106126088716

SHA512
db10e4e8db2d14c13ec350ae8528462cfdc2df5ac869a439572efaf7e0670563938eca6595ef2cb5bca6147b8bb1693337f3f1ba9122d55b3529de42b24fe3ba

Download Submit
memory/3052-54-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-69-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-68-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-67-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-66-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-65-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-64-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-48-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-50-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-53-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-52-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-51-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-49-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-63-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-62-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-55-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-61-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-56-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-57-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-58-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-59-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3052-60-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3648-2-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3648-3-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3648-41-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3648-1-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3648-6-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3648-5-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3648-4-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/4272-40-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4368-0-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads