Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
- submitted
04/07/2024, 08:28
General
- Target 2546ffb96cf0a1110f044f78fc00af45_JaffaCakes118.exe
- Size 326KB
- Sample240704-kc625ssdmn
- SHA256 e7d7ff85299977c2c3426f5b9dd08f88c19810b1865b392579dda3fcddbafcbd
Malware Config
Signatures
- ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
- UAC bypass 3 TTPs 1 IoCs
- ModiLoader Second Stage 5 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 4 IoCs
- UPX packed file 5 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks whether UAC is enabled 1 TTPs 3 IoCs
- Drops file in Windows directory 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
- System policy modification 1 TTPs 1 IoCs
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\2546ffb96cf0a1110f044f78fc00af45_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\2546ffb96cf0a1110f044f78fc00af45_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\mstwain32.exe"C:\Windows\mstwain32.exe"2⤵
- UAC bypass
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- System policy modification
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
cmsetac.dll
mstwain32.exe
ntdtcstp.dll
memory/1276-19-0x0000000000830000-0x0000000000831000-memory.dmp
memory/1276-9-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1276-23-0x00000000023B0000-0x00000000023BE000-memory.dmp
memory/1276-26-0x0000000002360000-0x0000000002361000-memory.dmp
memory/1276-27-0x0000000002130000-0x0000000002138000-memory.dmp
memory/1276-28-0x00000000023B0000-0x00000000023BE000-memory.dmp
memory/1276-31-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3408-11-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3408-0-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3408-1-0x00000000005F0000-0x00000000005F1000-memory.dmp