darkcomet | 0c0913c7f5e273af5f41f38b8837573d1b76cd971c2f02944469799b19e40d5f

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2024 06:55

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General

Target

fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Size

785KB
MD5

fee29612c4bf71a87be2d3772ce7260e
SHA1

8207567c09228918f370ff9937f35da0e460b6ef
SHA256

0c0913c7f5e273af5f41f38b8837573d1b76cd971c2f02944469799b19e40d5f
SHA512

38a5bb2097bfe84d5b4ad8f8b07ecb999854586d856fb7852a46bcea0655ca8ac413ac673b748fecfc2a92868b1122c1922670ace784ef25b8644cfa031ceca0
SSDEEP

24576:oFg59e31xM7a12FFgKqlJYvrGjbAoLRhhMS:oFgwxM7qEFgKqlJYvrzoLRjMS

Score

10^/10

darkcomet discovery evasion 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:\\Users\\Admin\\AppData\\Roaming\\Windupdt\\winupdate.exe"	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe

Modifies firewall policy service 3 TTPs 3 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	winupdate.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	winupdate.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	winupdate.exe

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
2360	attrib.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
2476	winupdate.exe
2612	winupdate.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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Users\\Admin\\AppData\\Roaming\\Windupdt\\winupdate.exe"	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Users\\Admin\\AppData\\Roaming\\Windupdt\\winupdate.exe"	winupdate.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 764 set thread context of 1028	764	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	82
PID 2476 set thread context of 2612	2476	winupdate.exe	87

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 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	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeSecurityPrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeBackupPrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeRestorePrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeShutdownPrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeDebugPrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeUndockPrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: 33	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: 34	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: 35	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: 36	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2612	winupdate.exe
Token: SeSecurityPrivilege	2612	winupdate.exe
Token: SeTakeOwnershipPrivilege	2612	winupdate.exe
Token: SeLoadDriverPrivilege	2612	winupdate.exe
Token: SeSystemProfilePrivilege	2612	winupdate.exe
Token: SeSystemtimePrivilege	2612	winupdate.exe
Token: SeProfSingleProcessPrivilege	2612	winupdate.exe
Token: SeIncBasePriorityPrivilege	2612	winupdate.exe
Token: SeCreatePagefilePrivilege	2612	winupdate.exe
Token: SeBackupPrivilege	2612	winupdate.exe
Token: SeRestorePrivilege	2612	winupdate.exe
Token: SeShutdownPrivilege	2612	winupdate.exe
Token: SeDebugPrivilege	2612	winupdate.exe
Token: SeSystemEnvironmentPrivilege	2612	winupdate.exe
Token: SeChangeNotifyPrivilege	2612	winupdate.exe
Token: SeRemoteShutdownPrivilege	2612	winupdate.exe
Token: SeUndockPrivilege	2612	winupdate.exe
Token: SeManageVolumePrivilege	2612	winupdate.exe
Token: SeImpersonatePrivilege	2612	winupdate.exe
Token: SeCreateGlobalPrivilege	2612	winupdate.exe
Token: 33	2612	winupdate.exe
Token: 34	2612	winupdate.exe
Token: 35	2612	winupdate.exe
Token: 36	2612	winupdate.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
764	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
2476	winupdate.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 764 wrote to memory of 1028	764	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	82
PID 764 wrote to memory of 1028	764	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	82
PID 764 wrote to memory of 1028	764	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	82
PID 764 wrote to memory of 1028	764	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	82
PID 764 wrote to memory of 1028	764	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	82
PID 764 wrote to memory of 1028	764	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	82
PID 764 wrote to memory of 1028	764	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	82
PID 764 wrote to memory of 1028	764	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	82
PID 764 wrote to memory of 1028	764	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	82
PID 764 wrote to memory of 1028	764	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	82
PID 764 wrote to memory of 1028	764	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	82
PID 764 wrote to memory of 1028	764	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	82
PID 764 wrote to memory of 1028	764	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	82
PID 764 wrote to memory of 1028	764	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	82
PID 1028 wrote to memory of 4356	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	83
PID 1028 wrote to memory of 4356	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	83
PID 1028 wrote to memory of 4356	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	83
PID 4356 wrote to memory of 2360	4356	cmd.exe	85
PID 4356 wrote to memory of 2360	4356	cmd.exe	85
PID 4356 wrote to memory of 2360	4356	cmd.exe	85
PID 1028 wrote to memory of 2476	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	86
PID 1028 wrote to memory of 2476	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	86
PID 1028 wrote to memory of 2476	1028	fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe	86
PID 2476 wrote to memory of 2612	2476	winupdate.exe	87
PID 2476 wrote to memory of 2612	2476	winupdate.exe	87
PID 2476 wrote to memory of 2612	2476	winupdate.exe	87
PID 2476 wrote to memory of 2612	2476	winupdate.exe	87
PID 2476 wrote to memory of 2612	2476	winupdate.exe	87
PID 2476 wrote to memory of 2612	2476	winupdate.exe	87
PID 2476 wrote to memory of 2612	2476	winupdate.exe	87
PID 2476 wrote to memory of 2612	2476	winupdate.exe	87
PID 2476 wrote to memory of 2612	2476	winupdate.exe	87
PID 2476 wrote to memory of 2612	2476	winupdate.exe	87
PID 2476 wrote to memory of 2612	2476	winupdate.exe	87
PID 2476 wrote to memory of 2612	2476	winupdate.exe	87
PID 2476 wrote to memory of 2612	2476	winupdate.exe	87
PID 2476 wrote to memory of 2612	2476	winupdate.exe	87

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2360	attrib.exe

C:\Users\Admin\AppData\Local\Temp\fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:764
- C:\Users\Admin\AppData\Local\Temp\fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1028
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4356
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\fee29612c4bf71a87be2d3772ce7260e_JaffaCakes118.exe" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:2360
- - C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe
    "C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2476
  - - C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe
      C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe
      4⤵
      Modifies firewall policy service
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:2612

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

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

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Downloads

C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe

Filesize
785KB

MD5
fee29612c4bf71a87be2d3772ce7260e

SHA1
8207567c09228918f370ff9937f35da0e460b6ef

SHA256
0c0913c7f5e273af5f41f38b8837573d1b76cd971c2f02944469799b19e40d5f

SHA512
38a5bb2097bfe84d5b4ad8f8b07ecb999854586d856fb7852a46bcea0655ca8ac413ac673b748fecfc2a92868b1122c1922670ace784ef25b8644cfa031ceca0

Download Submit
memory/764-7-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/764-0-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1028-3-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/1028-4-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/1028-5-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/1028-8-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/1028-9-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/1028-72-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2476-81-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2612-82-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2612-89-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2612-83-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2612-84-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2612-78-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2612-86-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2612-85-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2612-87-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2612-88-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2612-79-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2612-90-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2612-91-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2612-92-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2612-93-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2612-94-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2612-95-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2612-96-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2612-97-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2612-98-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2612-99-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads