Analysis
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max time kernel
121s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
28/02/2025, 05:41
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe
Resource
win7-20240903-en
General
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Target
JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe
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Size
1011KB
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MD5
31f58638a0a7fa73b994e499a535a122
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SHA1
8e746e1f5ed2cf7a597a3f8aae807b982f314b3a
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SHA256
2decd81550f4d79ec936cf7587caf057782c98b4147b604084aa73d599a04a3d
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SHA512
c824e522671b70269fdecb96fa46d6ce6ff1221b5e0135f85f68735080a5b0898ae47ad346a08776310c602aeb10c230f4de5c60b07f65c3d344865c47b7eb39
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SSDEEP
24576:BvOTggIRfmQX3zRYC6FVZPv+FWe4Ys/E:VjYlDZ3+UT/E
Malware Config
Extracted
darkcomet
- gencode
-
install
false
-
offline_keylogger
false
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persistence
false
Extracted
darkcomet
Guest16
testpyrolol.no-ip.org:1604
DC_MUTEX-46LUR2B
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InstallPath
MSDCSC\msdcsc.exe
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gencode
36dND8bPztoH
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install
true
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offline_keylogger
true
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persistence
true
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reg_key
MicroUpdate
Signatures
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Darkcomet family
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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:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" svchost.exe -
Executes dropped EXE 2 IoCs
pid Process 2628 svchost.exe 2696 msdcsc.exe -
Loads dropped DLL 2 IoCs
pid Process 1880 JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe 2628 svchost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" svchost.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1880 set thread context of 2628 1880 JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe 31 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msdcsc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe -
Suspicious use of AdjustPrivilegeToken 23 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2628 svchost.exe Token: SeSecurityPrivilege 2628 svchost.exe Token: SeTakeOwnershipPrivilege 2628 svchost.exe Token: SeLoadDriverPrivilege 2628 svchost.exe Token: SeSystemProfilePrivilege 2628 svchost.exe Token: SeSystemtimePrivilege 2628 svchost.exe Token: SeProfSingleProcessPrivilege 2628 svchost.exe Token: SeIncBasePriorityPrivilege 2628 svchost.exe Token: SeCreatePagefilePrivilege 2628 svchost.exe Token: SeBackupPrivilege 2628 svchost.exe Token: SeRestorePrivilege 2628 svchost.exe Token: SeShutdownPrivilege 2628 svchost.exe Token: SeDebugPrivilege 2628 svchost.exe Token: SeSystemEnvironmentPrivilege 2628 svchost.exe Token: SeChangeNotifyPrivilege 2628 svchost.exe Token: SeRemoteShutdownPrivilege 2628 svchost.exe Token: SeUndockPrivilege 2628 svchost.exe Token: SeManageVolumePrivilege 2628 svchost.exe Token: SeImpersonatePrivilege 2628 svchost.exe Token: SeCreateGlobalPrivilege 2628 svchost.exe Token: 33 2628 svchost.exe Token: 34 2628 svchost.exe Token: 35 2628 svchost.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 1880 wrote to memory of 2628 1880 JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe 31 PID 1880 wrote to memory of 2628 1880 JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe 31 PID 1880 wrote to memory of 2628 1880 JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe 31 PID 1880 wrote to memory of 2628 1880 JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe 31 PID 1880 wrote to memory of 2628 1880 JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe 31 PID 1880 wrote to memory of 2628 1880 JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe 31 PID 1880 wrote to memory of 2628 1880 JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe 31 PID 1880 wrote to memory of 2628 1880 JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe 31 PID 1880 wrote to memory of 2628 1880 JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe 31 PID 1880 wrote to memory of 2628 1880 JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe 31 PID 1880 wrote to memory of 2628 1880 JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe 31 PID 1880 wrote to memory of 2628 1880 JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe 31 PID 1880 wrote to memory of 2628 1880 JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe 31 PID 2628 wrote to memory of 2696 2628 svchost.exe 32 PID 2628 wrote to memory of 2696 2628 svchost.exe 32 PID 2628 wrote to memory of 2696 2628 svchost.exe 32 PID 2628 wrote to memory of 2696 2628 svchost.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1880 -
C:\Users\Admin\AppData\Local\Temp\svchost.exeC:\Users\Admin\AppData\Local\Temp\svchost.exe2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2628 -
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2696
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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
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Filesize
1.1MB
MD534aa912defa18c2c129f1e09d75c1d7e
SHA19c3046324657505a30ecd9b1fdb46c05bde7d470
SHA2566df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386
SHA512d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98