Analysis
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max time kernel
145s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
20/07/2024, 02:11
Behavioral task
behavioral1
Sample
5ea2e23927363d8b4f61ab07a7edc9ab_JaffaCakes118.dll
Resource
win7-20240708-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
5ea2e23927363d8b4f61ab07a7edc9ab_JaffaCakes118.dll
Resource
win10v2004-20240709-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
5ea2e23927363d8b4f61ab07a7edc9ab_JaffaCakes118.dll
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Size
86KB
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MD5
5ea2e23927363d8b4f61ab07a7edc9ab
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SHA1
d755189f50bcf8ad2d19454614f0f1eb84f32759
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SHA256
3477dce4df8766189100726f05ad616220031339d933c2477ec0355e67a6efc2
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SHA512
9f38e82b9b4803c5ed9d0509a4cf714dfdc46f5cc1ac817912d46663bb4271b4bd4f077bd9c3fce6bccca1040e968027c4f1df292943a449f5732991b06d42f5
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SSDEEP
1536:bZcTwAgx+oWH6dOYsgCRs6rFHwSqkC0/uHkIn1WYQdlgi2FEGQL9nouy8+:t57WSygMjF/JRfhout+
Score
8/10
Malware Config
Signatures
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Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\dsadcbiu\Parameters\ServiceDll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5ea2e23927363d8b4f61ab07a7edc9ab_JaffaCakes118.dll" regsvr32.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\dsadcbiu\ImagePath = "%SystemRoot%\\System32\\svchost.exe -k netsvcs" regsvr32.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\SystemBiosVersion rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion rundll32.exe -
resource yara_rule behavioral1/memory/2896-0-0x00000000001D0000-0x0000000000213000-memory.dmp upx behavioral1/memory/2888-15-0x00000000001F0000-0x0000000000233000-memory.dmp upx behavioral1/memory/2888-14-0x00000000001F0000-0x0000000000233000-memory.dmp upx behavioral1/memory/2888-13-0x00000000001F0000-0x0000000000233000-memory.dmp upx behavioral1/memory/2888-12-0x00000000001F0000-0x0000000000233000-memory.dmp upx behavioral1/memory/2896-16-0x00000000001D0000-0x0000000000213000-memory.dmp upx behavioral1/memory/2896-18-0x00000000001D0000-0x0000000000213000-memory.dmp upx behavioral1/memory/2888-20-0x00000000001F0000-0x0000000000233000-memory.dmp upx behavioral1/memory/2888-21-0x00000000001F0000-0x0000000000233000-memory.dmp upx behavioral1/memory/2888-22-0x00000000001F0000-0x0000000000233000-memory.dmp upx behavioral1/memory/2888-23-0x00000000001F0000-0x0000000000233000-memory.dmp upx behavioral1/memory/2888-24-0x00000000001F0000-0x0000000000233000-memory.dmp upx behavioral1/memory/2888-25-0x00000000001F0000-0x0000000000233000-memory.dmp upx behavioral1/memory/2888-27-0x00000000001F0000-0x0000000000233000-memory.dmp upx behavioral1/memory/2888-29-0x00000000001F0000-0x0000000000233000-memory.dmp upx -
Installs/modifies Browser Helper Object 2 TTPs 1 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{72AAF887-F325-4488-85DF-E66D9C41BAAD} regsvr32.exe -
Modifies registry class 15 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72AAF887-F325-4488-85DF-E66D9C41BAAD}\ regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72AAF887-F325-4488-85DF-E66D9C41BAAD}\InprocServer32\ = "c:\\users\\admin\\appdata\\local\\temp\\5ea2e23927363d8b4f61ab07a7edc9ab_jaffacakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Gpmefawn\ regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Gpmefawn\CLSID\ = "{72AAF887-F325-4488-85DF-E66D9C41BAAD}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72AAF887-F325-4488-85DF-E66D9C41BAAD}\ProgID\ = "Gpmefawn" regsvr32.exe Key created \Registry\Machine\SOFTWARE\Classes\Wow6432Node\CLSID\{72AAF887-F325-4488-85DF-E66D9C41BAAD}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72AAF887-F325-4488-85DF-E66D9C41BAAD}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \Registry\Machine\SOFTWARE\Classes\Gpmefawn regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72AAF887-F325-4488-85DF-E66D9C41BAAD}\Version = "1" regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72AAF887-F325-4488-85DF-E66D9C41BAAD}\Version = "6" rundll32.exe Key created \Registry\Machine\SOFTWARE\Classes\Wow6432Node\CLSID\{72AAF887-F325-4488-85DF-E66D9C41BAAD} regsvr32.exe Key created \Registry\Machine\SOFTWARE\Classes\Wow6432Node\CLSID\{72AAF887-F325-4488-85DF-E66D9C41BAAD}\ProgID regsvr32.exe Key created \Registry\Machine\SOFTWARE\Classes\Wow6432Node\CLSID\{72AAF887-F325-4488-85DF-E66D9C41BAAD}\ rundll32.exe Key created \Registry\Machine\SOFTWARE\Classes\Gpmefawn\CLSID regsvr32.exe Key created \Registry\Machine\SOFTWARE\Classes\Wow6432Node\CLSID\{72AAF887-F325-4488-85DF-E66D9C41BAAD}\ regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 48 IoCs
pid Process 2896 regsvr32.exe 2896 regsvr32.exe 2896 regsvr32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe 2888 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
description pid Process Token: SeDebugPrivilege 2896 regsvr32.exe Token: SeDebugPrivilege 2888 rundll32.exe Token: SeBackupPrivilege 2676 vssvc.exe Token: SeRestorePrivilege 2676 vssvc.exe Token: SeAuditPrivilege 2676 vssvc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2888 rundll32.exe -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 2892 wrote to memory of 2896 2892 regsvr32.exe 30 PID 2892 wrote to memory of 2896 2892 regsvr32.exe 30 PID 2892 wrote to memory of 2896 2892 regsvr32.exe 30 PID 2892 wrote to memory of 2896 2892 regsvr32.exe 30 PID 2892 wrote to memory of 2896 2892 regsvr32.exe 30 PID 2892 wrote to memory of 2896 2892 regsvr32.exe 30 PID 2892 wrote to memory of 2896 2892 regsvr32.exe 30 PID 2896 wrote to memory of 2888 2896 regsvr32.exe 31 PID 2896 wrote to memory of 2888 2896 regsvr32.exe 31 PID 2896 wrote to memory of 2888 2896 regsvr32.exe 31 PID 2896 wrote to memory of 2888 2896 regsvr32.exe 31 PID 2896 wrote to memory of 2888 2896 regsvr32.exe 31 PID 2896 wrote to memory of 2888 2896 regsvr32.exe 31 PID 2896 wrote to memory of 2888 2896 regsvr32.exe 31 PID 2896 wrote to memory of 2636 2896 regsvr32.exe 32 PID 2896 wrote to memory of 2636 2896 regsvr32.exe 32 PID 2896 wrote to memory of 2636 2896 regsvr32.exe 32 PID 2896 wrote to memory of 2636 2896 regsvr32.exe 32 -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\5ea2e23927363d8b4f61ab07a7edc9ab_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2892 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\5ea2e23927363d8b4f61ab07a7edc9ab_JaffaCakes118.dll2⤵
- Server Software Component: Terminal Services DLL
- Sets service image path in registry
- Installs/modifies Browser Helper Object
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2896 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\5ea2e23927363d8b4f61ab07a7edc9ab_JaffaCakes118.dll",DllMain -3⤵
- Checks BIOS information in registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2888
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C:\Windows\SysWOW64\at.exeC:\Windows\system32\at.exe 17:48:00 /every:Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday "C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\5ea2e23927363d8b4f61ab07a7edc9ab_JaffaCakes118.dll",DllMain -3⤵PID:2636
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2676