Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20250217-en - resource tags
arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system - submitted
21/02/2025, 09:40
Behavioral task
behavioral1
Sample
JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe
Resource
win7-20240903-en
windows7-x64
13 signatures
150 seconds
General
- Target JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe
- Size 635KB
- Sample250221-lndqeaylez
- SHA256 e3bb8565695c223d8a6cae00926bdfd8895b30e42579ae7246c7b40eae6825f2
- MD5 11c5277641c093dc8ae187eb464bb613
- SHA1 78cac7c41f8edfe255c51af21a7f116acffab0bb
- SHA512 1dd70f0f15fb720159149f920b377ebc22ad1cd7790524b16df475d8ba2b4da58d46107f3d3cd522f5b2acaaabbfabfb94e8c82fe12828abfbb2a30181aca40e
- SSDEEP 12288:8pwABK90BOe/x9lPAYvxPQVjdsAY2XjWlnlpTMMXG91uhKIXn/X:GwAcu99lPzvxP+Bsz2XjWTRMQckkIXnv
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
darkcomet
Botnet
-
Guest16
C2
-
musculaire.servebeer.com:1604
Mutex
-
DC_MUTEX-6CEBT0X
Attributes
-
InstallPath
Windupdt\winupdate.exe
-
gencode
8qwy4gGbt�9*
-
install
true
-
offline_keylogger
false
-
persistence
false
rc4.plain
Signatures
- Darkcomet family
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windupdt\\winupdate.exe" JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe - Checks BIOS information in registry 2 TTPs 3 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate explorer.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-100612193-3312047696-905266872-1000\Control Panel\International\Geo\Nation JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe - Executes dropped EXE 1 IoCs
pid Process 2132 winupdate.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-100612193-3312047696-905266872-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Windupdt\\winupdate.exe" JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4148 set thread context of 3084 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe 86 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winupdate.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language explorer.exe - Checks processor information in registry 2 TTPs 12 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier winupdate.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString explorer.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString winupdate.exe - Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier explorer.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier winupdate.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeSecurityPrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeTakeOwnershipPrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeLoadDriverPrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeSystemProfilePrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeSystemtimePrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeProfSingleProcessPrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeIncBasePriorityPrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeCreatePagefilePrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeBackupPrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeRestorePrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeShutdownPrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeDebugPrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeSystemEnvironmentPrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeChangeNotifyPrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeRemoteShutdownPrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeUndockPrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeManageVolumePrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeImpersonatePrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeCreateGlobalPrivilege 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: 33 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: 34 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: 35 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: 36 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe Token: SeIncreaseQuotaPrivilege 3084 explorer.exe Token: SeSecurityPrivilege 3084 explorer.exe Token: SeTakeOwnershipPrivilege 3084 explorer.exe Token: SeLoadDriverPrivilege 3084 explorer.exe Token: SeSystemProfilePrivilege 3084 explorer.exe Token: SeSystemtimePrivilege 3084 explorer.exe Token: SeProfSingleProcessPrivilege 3084 explorer.exe Token: SeIncBasePriorityPrivilege 3084 explorer.exe Token: SeCreatePagefilePrivilege 3084 explorer.exe Token: SeBackupPrivilege 3084 explorer.exe Token: SeRestorePrivilege 3084 explorer.exe Token: SeShutdownPrivilege 3084 explorer.exe Token: SeDebugPrivilege 3084 explorer.exe Token: SeSystemEnvironmentPrivilege 3084 explorer.exe Token: SeChangeNotifyPrivilege 3084 explorer.exe Token: SeRemoteShutdownPrivilege 3084 explorer.exe Token: SeUndockPrivilege 3084 explorer.exe Token: SeManageVolumePrivilege 3084 explorer.exe Token: SeImpersonatePrivilege 3084 explorer.exe Token: SeCreateGlobalPrivilege 3084 explorer.exe Token: 33 3084 explorer.exe Token: 34 3084 explorer.exe Token: 35 3084 explorer.exe Token: 36 3084 explorer.exe Token: SeIncreaseQuotaPrivilege 2132 winupdate.exe Token: SeSecurityPrivilege 2132 winupdate.exe Token: SeTakeOwnershipPrivilege 2132 winupdate.exe Token: SeLoadDriverPrivilege 2132 winupdate.exe Token: SeSystemProfilePrivilege 2132 winupdate.exe Token: SeSystemtimePrivilege 2132 winupdate.exe Token: SeProfSingleProcessPrivilege 2132 winupdate.exe Token: SeIncBasePriorityPrivilege 2132 winupdate.exe Token: SeCreatePagefilePrivilege 2132 winupdate.exe Token: SeBackupPrivilege 2132 winupdate.exe Token: SeRestorePrivilege 2132 winupdate.exe Token: SeShutdownPrivilege 2132 winupdate.exe Token: SeDebugPrivilege 2132 winupdate.exe Token: SeSystemEnvironmentPrivilege 2132 winupdate.exe Token: SeChangeNotifyPrivilege 2132 winupdate.exe Token: SeRemoteShutdownPrivilege 2132 winupdate.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4148 wrote to memory of 3084 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe 86 PID 4148 wrote to memory of 3084 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe 86 PID 4148 wrote to memory of 3084 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe 86 PID 4148 wrote to memory of 3084 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe 86 PID 4148 wrote to memory of 3084 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe 86 PID 4148 wrote to memory of 2132 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe 87 PID 4148 wrote to memory of 2132 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe 87 PID 4148 wrote to memory of 2132 4148 JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_11c5277641c093dc8ae187eb464bb613.exe"1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Checks computer location settings
- 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:4148 -
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
PID:3084
-
-
C:\Windupdt\winupdate.exe"C:\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:2132
-
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Replay Monitor
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Downloads
- Path C:\Windupdt\winupdate.exe
- Size 635KB
- SHA256 e3bb8565695c223d8a6cae00926bdfd8895b30e42579ae7246c7b40eae6825f2
- MD5 11c5277641c093dc8ae187eb464bb613
- SHA1 78cac7c41f8edfe255c51af21a7f116acffab0bb
- SHA512 1dd70f0f15fb720159149f920b377ebc22ad1cd7790524b16df475d8ba2b4da58d46107f3d3cd522f5b2acaaabbfabfb94e8c82fe12828abfbb2a30181aca40e
- SSDEEP 12288:8pwABK90BOe/x9lPAYvxPQVjdsAY2XjWlnlpTMMXG91uhKIXn/X:GwAcu99lPzvxP+Bsz2XjWTRMQckkIXnv
- MD5 SHA1 SHA512 SSDEEP