Analysis
- max time kernel
150s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240709-en - resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system - submitted
16/07/2024, 08:13
Behavioral task
behavioral1
Sample
4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe
Resource
win7-20240708-en
windows7-x64
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe
Resource
win10v2004-20240709-en
windows10-2004-x64
13 signatures
150 seconds
General
- Target 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe
- Size 783KB
- Sample240716-j4prhasfqm
- SHA256 ce2dfdb656b3382fa8f26aa66642996cb21efa5bf8b34e6f8444cc7b9b37ca1b
- MD5 4d7cd9952fbcf9040399543116c937fd
- SHA1 2507272d7740e6616cb1242b90520909bc917655
- SHA512 8542ace5a12e60d6c3845889a46afda57df08de4aae5331ec8ad685d22d7a957468ddc36e4bbdb140c67b84b9b61d6e4e3cac6bba520e08e3b8f5543e093336d
- SSDEEP 12288:IaAchpWsuVTv7ItY8XljyypHP7cOLBev03hlULsmWZ++09ZcKDVs:pAEENIq8XwyVPQclDq/+Wnps
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- 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:\\driver\\winupdate.exe" 4d7cd9952fbcf9040399543116c937fd_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 winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.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-1-5-21-464762018-485119342-1613148473-1000\Control Panel\International\Geo\Nation 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe - Executes dropped EXE 1 IoCs
pid Process 468 winupdate.exe -
resource yara_rule behavioral2/memory/1140-0-0x0000000000400000-0x00000000004C6000-memory.dmp upx behavioral2/files/0x0008000000023441-6.dat upx behavioral2/memory/1140-11-0x0000000000400000-0x00000000004C6000-memory.dmp upx behavioral2/memory/468-13-0x0000000000400000-0x00000000004C6000-memory.dmp upx - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\driver\\winupdate.exe" 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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\VendorIdentifier 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 winupdate.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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier winupdate.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe - Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier winupdate.exe - Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeSecurityPrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeTakeOwnershipPrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeLoadDriverPrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeSystemProfilePrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeSystemtimePrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeProfSingleProcessPrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeIncBasePriorityPrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeCreatePagefilePrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeBackupPrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeRestorePrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeShutdownPrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeDebugPrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeSystemEnvironmentPrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeChangeNotifyPrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeRemoteShutdownPrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeUndockPrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeManageVolumePrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeImpersonatePrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeCreateGlobalPrivilege 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: 33 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: 34 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: 35 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: 36 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe Token: SeIncreaseQuotaPrivilege 468 winupdate.exe Token: SeSecurityPrivilege 468 winupdate.exe Token: SeTakeOwnershipPrivilege 468 winupdate.exe Token: SeLoadDriverPrivilege 468 winupdate.exe Token: SeSystemProfilePrivilege 468 winupdate.exe Token: SeSystemtimePrivilege 468 winupdate.exe Token: SeProfSingleProcessPrivilege 468 winupdate.exe Token: SeIncBasePriorityPrivilege 468 winupdate.exe Token: SeCreatePagefilePrivilege 468 winupdate.exe Token: SeBackupPrivilege 468 winupdate.exe Token: SeRestorePrivilege 468 winupdate.exe Token: SeShutdownPrivilege 468 winupdate.exe Token: SeDebugPrivilege 468 winupdate.exe Token: SeSystemEnvironmentPrivilege 468 winupdate.exe Token: SeChangeNotifyPrivilege 468 winupdate.exe Token: SeRemoteShutdownPrivilege 468 winupdate.exe Token: SeUndockPrivilege 468 winupdate.exe Token: SeManageVolumePrivilege 468 winupdate.exe Token: SeImpersonatePrivilege 468 winupdate.exe Token: SeCreateGlobalPrivilege 468 winupdate.exe Token: 33 468 winupdate.exe Token: 34 468 winupdate.exe Token: 35 468 winupdate.exe Token: 36 468 winupdate.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 468 winupdate.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1140 wrote to memory of 468 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe 86 PID 1140 wrote to memory of 468 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe 86 PID 1140 wrote to memory of 468 1140 4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\4d7cd9952fbcf9040399543116c937fd_JaffaCakes118.exe"1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Checks computer location settings
- Adds Run key to start application
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1140 -
C:\driver\winupdate.exe"C:\driver\winupdate.exe"2⤵
- Checks BIOS information in registry
- Executes dropped EXE
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:468
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\driver\winupdate.exe
- Size 783KB
- SHA256 ce2dfdb656b3382fa8f26aa66642996cb21efa5bf8b34e6f8444cc7b9b37ca1b
- MD5 4d7cd9952fbcf9040399543116c937fd
- SHA1 2507272d7740e6616cb1242b90520909bc917655
- SHA512 8542ace5a12e60d6c3845889a46afda57df08de4aae5331ec8ad685d22d7a957468ddc36e4bbdb140c67b84b9b61d6e4e3cac6bba520e08e3b8f5543e093336d
- SSDEEP 12288:IaAchpWsuVTv7ItY8XljyypHP7cOLBev03hlULsmWZ++09ZcKDVs:pAEENIq8XwyVPQclDq/+Wnps
- MD5 SHA1 SHA512 SSDEEP