Analysis
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max time kernel
150s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
15-12-2024 14:19
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe
Resource
win7-20240903-en
windows7-x64
14 signatures
150 seconds
General
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Target
f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe
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Size
824KB
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MD5
f4630b61a73be4dd2a06cb1daf852ad5
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SHA1
2a0d4498c6116f71babdec9b12e66da8e15a7061
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SHA256
9ccd55fbd0fbf72e74d9c4a293a84e91a764cb11835774a32cf7432e1ad58df7
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SHA512
4e3ecd60f7546e97382738a7b4253f015a8aef3492357f0b8b7fc76a69d6f32fab348eda98c9f3a9644a17aaea025564a6e87d27cd419c7dfe857d21918599a7
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SSDEEP
24576:1nuXyIyxS+2UT5G6vDj4Vl1H8Pgrg4yzv2j:1uCzfw8gVLH8PgWE
Malware Config
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:\\Windows\\system32\\Windupdt\\winupdate.exe" f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.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 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate explorer.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windows\\system32\\Windupdt\\winupdate.exe" f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe -
Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\Windupdt\winupdate.exe f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe File opened for modification C:\Windows\SysWOW64\Windupdt\winupdate.exe f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe File opened for modification C:\Windows\SysWOW64\Windupdt\ f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 1568 set thread context of 2288 1568 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe 30 PID 2288 set thread context of 2436 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe 31 PID 2436 set thread context of 2620 2436 explorer.exe 32 -
resource yara_rule behavioral1/memory/2288-5-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2288-4-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2288-10-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2288-8-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2288-11-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2288-12-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2288-14-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2288-13-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2288-27-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2620-40-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2620-38-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2620-37-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2620-41-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2620-42-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2620-45-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2620-44-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2620-43-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2620-46-0x0000000000400000-0x00000000004B5000-memory.dmp upx -
System Location Discovery: System Language Discovery 1 TTPs 4 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 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.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 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 explorer.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 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 opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier explorer.exe -
Suspicious use of AdjustPrivilegeToken 46 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeSecurityPrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeTakeOwnershipPrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeLoadDriverPrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeSystemProfilePrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeSystemtimePrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeProfSingleProcessPrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeIncBasePriorityPrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeCreatePagefilePrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeBackupPrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeRestorePrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeShutdownPrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeDebugPrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeSystemEnvironmentPrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeChangeNotifyPrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeRemoteShutdownPrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeUndockPrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeManageVolumePrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeImpersonatePrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeCreateGlobalPrivilege 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: 33 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: 34 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: 35 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe Token: SeIncreaseQuotaPrivilege 2620 explorer.exe Token: SeSecurityPrivilege 2620 explorer.exe Token: SeTakeOwnershipPrivilege 2620 explorer.exe Token: SeLoadDriverPrivilege 2620 explorer.exe Token: SeSystemProfilePrivilege 2620 explorer.exe Token: SeSystemtimePrivilege 2620 explorer.exe Token: SeProfSingleProcessPrivilege 2620 explorer.exe Token: SeIncBasePriorityPrivilege 2620 explorer.exe Token: SeCreatePagefilePrivilege 2620 explorer.exe Token: SeBackupPrivilege 2620 explorer.exe Token: SeRestorePrivilege 2620 explorer.exe Token: SeShutdownPrivilege 2620 explorer.exe Token: SeDebugPrivilege 2620 explorer.exe Token: SeSystemEnvironmentPrivilege 2620 explorer.exe Token: SeChangeNotifyPrivilege 2620 explorer.exe Token: SeRemoteShutdownPrivilege 2620 explorer.exe Token: SeUndockPrivilege 2620 explorer.exe Token: SeManageVolumePrivilege 2620 explorer.exe Token: SeImpersonatePrivilege 2620 explorer.exe Token: SeCreateGlobalPrivilege 2620 explorer.exe Token: 33 2620 explorer.exe Token: 34 2620 explorer.exe Token: 35 2620 explorer.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1568 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe 2436 explorer.exe 2620 explorer.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 1568 wrote to memory of 2288 1568 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe 30 PID 1568 wrote to memory of 2288 1568 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe 30 PID 1568 wrote to memory of 2288 1568 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe 30 PID 1568 wrote to memory of 2288 1568 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe 30 PID 1568 wrote to memory of 2288 1568 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe 30 PID 1568 wrote to memory of 2288 1568 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe 30 PID 1568 wrote to memory of 2288 1568 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe 30 PID 1568 wrote to memory of 2288 1568 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe 30 PID 1568 wrote to memory of 2288 1568 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe 30 PID 2288 wrote to memory of 2436 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe 31 PID 2288 wrote to memory of 2436 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe 31 PID 2288 wrote to memory of 2436 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe 31 PID 2288 wrote to memory of 2436 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe 31 PID 2288 wrote to memory of 2436 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe 31 PID 2288 wrote to memory of 2436 2288 f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe 31 PID 2436 wrote to memory of 2620 2436 explorer.exe 32 PID 2436 wrote to memory of 2620 2436 explorer.exe 32 PID 2436 wrote to memory of 2620 2436 explorer.exe 32 PID 2436 wrote to memory of 2620 2436 explorer.exe 32 PID 2436 wrote to memory of 2620 2436 explorer.exe 32 PID 2436 wrote to memory of 2620 2436 explorer.exe 32 PID 2436 wrote to memory of 2620 2436 explorer.exe 32 PID 2436 wrote to memory of 2620 2436 explorer.exe 32 PID 2436 wrote to memory of 2620 2436 explorer.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1568 -
C:\Users\Admin\AppData\Local\Temp\f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exeC:\Users\Admin\AppData\Local\Temp\f4630b61a73be4dd2a06cb1daf852ad5_JaffaCakes118.exe2⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Adds Run key to start application
- Drops file in System32 directory
- 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:2288 -
C:\Windows\SysWOW64\explorer.exe"C:\Windows\SysWOW64\explorer.exe"3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2436 -
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe4⤵
- 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
- Suspicious use of SetWindowsHookEx
PID:2620
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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
1