Analysis
- max time kernel
94s - max time network
99s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
03/07/2024, 11:39
General
- Target 2241ddcbf1e7b0e23d256f889ad6e26a_JaffaCakes118.exe
- Size 842KB
- Sample240703-nspdta1brb
- SHA256 8a3291faca87291212c18ef36210f5cba966e96cffac594225a279b956132396
Malware Config
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2241ddcbf1e7b0e23d256f889ad6e26a_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\2241ddcbf1e7b0e23d256f889ad6e26a_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\BFile1.exe"C:\Users\Admin\AppData\Local\Temp\BFile1.exe"2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of SetWindowsHookEx
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2580 -s 7883⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2580 -ip 25801⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
BFile1.exe
memory/2580-28-0x0000000000400000-0x000000000059E000-memory.dmp
memory/2580-26-0x0000000000400000-0x000000000059E000-memory.dmp
memory/2580-24-0x0000000000401000-0x0000000000403000-memory.dmp
memory/2580-20-0x0000000000400000-0x000000000059E000-memory.dmp
memory/4876-3-0x000000001BFE0000-0x000000001C4AE000-memory.dmp
memory/4876-6-0x000000001B940000-0x000000001B948000-memory.dmp
memory/4876-7-0x000000001C720000-0x000000001C76C000-memory.dmp
memory/4876-5-0x00007FFF041B0000-0x00007FFF04B51000-memory.dmp
memory/4876-4-0x000000001C5C0000-0x000000001C65C000-memory.dmp
memory/4876-22-0x00007FFF041B0000-0x00007FFF04B51000-memory.dmp
memory/4876-0-0x00007FFF04465000-0x00007FFF04466000-memory.dmp
memory/4876-2-0x00007FFF041B0000-0x00007FFF04B51000-memory.dmp
memory/4876-1-0x000000001BA60000-0x000000001BB06000-memory.dmp