Analysis
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max time kernel
149s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
29/03/2025, 18:18
Behavioral task
behavioral1
Sample
JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe
Resource
win7-20240903-en
windows7-x64
23 signatures
150 seconds
Behavioral task
behavioral2
Sample
JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe
Resource
win10v2004-20250314-en
windows10-2004-x64
4 signatures
150 seconds
General
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Target
JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe
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Size
1.5MB
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MD5
90daf928ceabe45ad2a9aaded817da31
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SHA1
d669f57b51672a1191b2fdf634414c2f3714f1bc
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SHA256
0725a2881b4533002e5e3ed20a6db2fd6cd610fb10cacd1d3152ee611652615d
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SHA512
30159904cfbf39e20791ab5c04b27f5852c63f9da435233815418ade73d58874bda8a9f107bd4c238d889802d954c345e68f9ed86e7670774ac1b74ecb18c354
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SSDEEP
49152:zgYnI9lCORJJP/TLNwbRRoyne9jVmwbSjTa:ztkRzP/e1e9jVmw+C
Malware Config
Extracted
Family
darkcomet
Botnet
Testing
C2
h7eatshot.sytes.net:550
Mutex
DC_MUTEX-2CVGDU5
Attributes
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InstallPath
Windupdt\winupdate.exe
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gencode
�z*�Hy7$To*Y
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install
true
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offline_keylogger
false
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persistence
false
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reg_key
winupdater
rc4.plain
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:\\Windupdt\\winupdate.exe" JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe -
Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Active Setup\Installed Components explorer.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate winupdate.exe -
Executes dropped EXE 1 IoCs
pid Process 2556 winupdate.exe -
Identifies Wine through registry keys 2 TTPs 2 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Wine winupdate.exe Key opened \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Wine JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe -
Loads dropped DLL 4 IoCs
pid Process 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe 2556 winupdate.exe 2556 winupdate.exe 2556 winupdate.exe -
resource yara_rule behavioral1/memory/2384-0-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2384-4-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2384-6-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2384-5-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/files/0x0008000000015d2e-8.dat themida behavioral1/memory/2556-15-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2556-23-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2556-22-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2556-24-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2556-26-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2556-27-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2556-28-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2556-29-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2556-30-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2556-31-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2556-32-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2556-36-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2556-37-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2556-38-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2556-39-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2556-40-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2556-41-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2556-42-0x0000000000400000-0x000000000058A000-memory.dmp themida behavioral1/memory/2556-44-0x0000000000400000-0x000000000058A000-memory.dmp themida -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe" JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe 2556 winupdate.exe -
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 2 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 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.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.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.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 opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.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_90daf928ceabe45ad2a9aaded817da31.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_Classes\Local Settings explorer.exe Key created \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell explorer.exe Key created \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff explorer.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe 2556 winupdate.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2972 explorer.exe -
Suspicious use of AdjustPrivilegeToken 58 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeSecurityPrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeTakeOwnershipPrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeLoadDriverPrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeSystemProfilePrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeSystemtimePrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeProfSingleProcessPrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeIncBasePriorityPrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeCreatePagefilePrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeBackupPrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeRestorePrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeShutdownPrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeDebugPrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeSystemEnvironmentPrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeChangeNotifyPrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeRemoteShutdownPrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeUndockPrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeManageVolumePrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeImpersonatePrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeCreateGlobalPrivilege 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: 33 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: 34 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: 35 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe Token: SeIncreaseQuotaPrivilege 2556 winupdate.exe Token: SeSecurityPrivilege 2556 winupdate.exe Token: SeTakeOwnershipPrivilege 2556 winupdate.exe Token: SeLoadDriverPrivilege 2556 winupdate.exe Token: SeSystemProfilePrivilege 2556 winupdate.exe Token: SeSystemtimePrivilege 2556 winupdate.exe Token: SeProfSingleProcessPrivilege 2556 winupdate.exe Token: SeIncBasePriorityPrivilege 2556 winupdate.exe Token: SeCreatePagefilePrivilege 2556 winupdate.exe Token: SeBackupPrivilege 2556 winupdate.exe Token: SeRestorePrivilege 2556 winupdate.exe Token: SeShutdownPrivilege 2556 winupdate.exe Token: SeDebugPrivilege 2556 winupdate.exe Token: SeSystemEnvironmentPrivilege 2556 winupdate.exe Token: SeChangeNotifyPrivilege 2556 winupdate.exe Token: SeRemoteShutdownPrivilege 2556 winupdate.exe Token: SeUndockPrivilege 2556 winupdate.exe Token: SeManageVolumePrivilege 2556 winupdate.exe Token: SeImpersonatePrivilege 2556 winupdate.exe Token: SeCreateGlobalPrivilege 2556 winupdate.exe Token: 33 2556 winupdate.exe Token: 34 2556 winupdate.exe Token: 35 2556 winupdate.exe Token: SeShutdownPrivilege 2972 explorer.exe Token: SeShutdownPrivilege 2972 explorer.exe Token: SeShutdownPrivilege 2972 explorer.exe Token: SeShutdownPrivilege 2972 explorer.exe Token: SeShutdownPrivilege 2972 explorer.exe Token: SeShutdownPrivilege 2972 explorer.exe Token: SeShutdownPrivilege 2972 explorer.exe Token: SeShutdownPrivilege 2972 explorer.exe Token: SeShutdownPrivilege 2972 explorer.exe Token: SeShutdownPrivilege 2972 explorer.exe Token: SeShutdownPrivilege 2972 explorer.exe Token: SeShutdownPrivilege 2972 explorer.exe -
Suspicious use of FindShellTrayWindow 25 IoCs
pid Process 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe -
Suspicious use of SendNotifyMessage 16 IoCs
pid Process 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe 2972 explorer.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2384 wrote to memory of 2844 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe 30 PID 2384 wrote to memory of 2844 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe 30 PID 2384 wrote to memory of 2844 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe 30 PID 2384 wrote to memory of 2844 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe 30 PID 2384 wrote to memory of 2556 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe 31 PID 2384 wrote to memory of 2556 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe 31 PID 2384 wrote to memory of 2556 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe 31 PID 2384 wrote to memory of 2556 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe 31 PID 2384 wrote to memory of 2556 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe 31 PID 2384 wrote to memory of 2556 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe 31 PID 2384 wrote to memory of 2556 2384 JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe 31 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_90daf928ceabe45ad2a9aaded817da31.exe"1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2384 -
C:\Windows\SysWOW64\explorer.exe"C:\Windows\SysWOW64\explorer.exe"2⤵PID:2844
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C:\Windupdt\winupdate.exe"C:\Windupdt\winupdate.exe"2⤵
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2556
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C:\Windows\explorer.exeexplorer.exe1⤵
- Boot or Logon Autostart Execution: Active Setup
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2972
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
3Active Setup
1Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
3Active Setup
1Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.5MB
MD590daf928ceabe45ad2a9aaded817da31
SHA1d669f57b51672a1191b2fdf634414c2f3714f1bc
SHA2560725a2881b4533002e5e3ed20a6db2fd6cd610fb10cacd1d3152ee611652615d
SHA51230159904cfbf39e20791ab5c04b27f5852c63f9da435233815418ade73d58874bda8a9f107bd4c238d889802d954c345e68f9ed86e7670774ac1b74ecb18c354