darkcomet | 141961d25e552022213f475ff45daaccfddaaca9735082a14b0094ec590b423b

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20250313-en
resource tags

arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system
submitted
29/03/2025, 19:50

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Size

996KB
MD5

9609bc67d987f482da2b53d4223a73bf
SHA1

c9c6819014f705fb7bdbedaa7674d999868299e8
SHA256

141961d25e552022213f475ff45daaccfddaaca9735082a14b0094ec590b423b
SHA512

d2c3f2539667b5ece5c14ff7d4ccf17caa48a8c994394580c2e8d16d39912cadd005ba7e9ccb6ef762962a9eb47b9a519253607e2ce53d6e0bebc2b6083da13e
SSDEEP

12288:zaAchpWsuVTv7ItY8XljyypHP7cOLBev03hlULsmWZ++09ZcKDVsgdicDpmj5N:WAEENIq8XwyVPQclDq/+WnpsS6

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

awaismalik.no-ip.org:999

Mutex

DC_MUTEX-DQ22J2Z

Attributes

InstallPath
Windupdt\winupdate.exe
gencode
=HNvDcXWK2+E
install
true
offline_keylogger
true
persistence
false
reg_key
winupdater

rc4.plain

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\\Windupdt\\winupdate.exe"	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe

Checks BIOS information in registry 2 TTPs 3 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	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.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-1-5-21-1279544337-3716153908-718418795-1000\Control Panel\International\Geo\Nation	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe

Executes dropped EXE 2 IoCs

pid	Process
112	winupdate.exe
848	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-1-5-21-1279544337-3716153908-718418795-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windows\\Windupdt\\winupdate.exe"	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Windupdt\winupdate.exe	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
File opened for modification	C:\Windows\Windupdt\	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
File created	C:\Windows\Windupdt\winupdate.exe	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe

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 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.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 12 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	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	winupdate.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\ProcessorNameString	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.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	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	winupdate.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	winupdate.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\	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeSecurityPrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeTakeOwnershipPrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeLoadDriverPrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeSystemProfilePrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeSystemtimePrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeProfSingleProcessPrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeIncBasePriorityPrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeCreatePagefilePrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeBackupPrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeRestorePrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeShutdownPrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeDebugPrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeSystemEnvironmentPrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeChangeNotifyPrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeRemoteShutdownPrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeUndockPrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeManageVolumePrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeImpersonatePrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeCreateGlobalPrivilege	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: 33	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: 34	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: 35	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: 36	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
Token: SeIncreaseQuotaPrivilege	112	winupdate.exe
Token: SeSecurityPrivilege	112	winupdate.exe
Token: SeTakeOwnershipPrivilege	112	winupdate.exe
Token: SeLoadDriverPrivilege	112	winupdate.exe
Token: SeSystemProfilePrivilege	112	winupdate.exe
Token: SeSystemtimePrivilege	112	winupdate.exe
Token: SeProfSingleProcessPrivilege	112	winupdate.exe
Token: SeIncBasePriorityPrivilege	112	winupdate.exe
Token: SeCreatePagefilePrivilege	112	winupdate.exe
Token: SeBackupPrivilege	112	winupdate.exe
Token: SeRestorePrivilege	112	winupdate.exe
Token: SeShutdownPrivilege	112	winupdate.exe
Token: SeDebugPrivilege	112	winupdate.exe
Token: SeSystemEnvironmentPrivilege	112	winupdate.exe
Token: SeChangeNotifyPrivilege	112	winupdate.exe
Token: SeRemoteShutdownPrivilege	112	winupdate.exe
Token: SeUndockPrivilege	112	winupdate.exe
Token: SeManageVolumePrivilege	112	winupdate.exe
Token: SeImpersonatePrivilege	112	winupdate.exe
Token: SeCreateGlobalPrivilege	112	winupdate.exe
Token: 33	112	winupdate.exe
Token: 34	112	winupdate.exe
Token: 35	112	winupdate.exe
Token: 36	112	winupdate.exe
Token: SeIncreaseQuotaPrivilege	848	winupdate.exe
Token: SeSecurityPrivilege	848	winupdate.exe
Token: SeTakeOwnershipPrivilege	848	winupdate.exe
Token: SeLoadDriverPrivilege	848	winupdate.exe
Token: SeSystemProfilePrivilege	848	winupdate.exe
Token: SeSystemtimePrivilege	848	winupdate.exe
Token: SeProfSingleProcessPrivilege	848	winupdate.exe
Token: SeIncBasePriorityPrivilege	848	winupdate.exe
Token: SeCreatePagefilePrivilege	848	winupdate.exe
Token: SeBackupPrivilege	848	winupdate.exe
Token: SeRestorePrivilege	848	winupdate.exe
Token: SeShutdownPrivilege	848	winupdate.exe
Token: SeDebugPrivilege	848	winupdate.exe
Token: SeSystemEnvironmentPrivilege	848	winupdate.exe
Token: SeChangeNotifyPrivilege	848	winupdate.exe
Token: SeRemoteShutdownPrivilege	848	winupdate.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
112	winupdate.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1432 wrote to memory of 112	1432	cmd.exe	87
PID 1432 wrote to memory of 112	1432	cmd.exe	87
PID 1432 wrote to memory of 112	1432	cmd.exe	87
PID 2392 wrote to memory of 848	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe	91
PID 2392 wrote to memory of 848	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe	91
PID 2392 wrote to memory of 848	2392	JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe	91

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9609bc67d987f482da2b53d4223a73bf.exe"
1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Checks computer location settings
- Adds Run key to start application
- Drops file in Windows directory
- 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:2392
- C:\Windows\Windupdt\winupdate.exe
  "C:\Windows\Windupdt\winupdate.exe"
  2⤵
  - 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
  PID:848

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\Windupdt\winupdate.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:1432
- C:\Windows\Windupdt\winupdate.exe
  C:\Windows\Windupdt\winupdate.exe
  2⤵
  - 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
  PID:112

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:\Windows\Windupdt\winupdate.exe

Filesize
996KB

MD5
9609bc67d987f482da2b53d4223a73bf

SHA1
c9c6819014f705fb7bdbedaa7674d999868299e8

SHA256
141961d25e552022213f475ff45daaccfddaaca9735082a14b0094ec590b423b

SHA512
d2c3f2539667b5ece5c14ff7d4ccf17caa48a8c994394580c2e8d16d39912cadd005ba7e9ccb6ef762962a9eb47b9a519253607e2ce53d6e0bebc2b6083da13e

Download Submit
memory/112-17-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/112-18-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/112-26-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/112-25-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/112-13-0x0000000000850000-0x0000000000851000-memory.dmp

Filesize
4KB

Download
memory/112-12-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/112-14-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/112-15-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/112-8-0x0000000000850000-0x0000000000851000-memory.dmp

Filesize
4KB

Download
memory/112-16-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/112-24-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/112-19-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/112-20-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/112-21-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/112-22-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/112-23-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/848-11-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/2392-0-0x0000000002300000-0x0000000002301000-memory.dmp

Filesize
4KB

Download
memory/2392-10-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads