Analysis
- max time kernel
148s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
06/05/2024, 16:25
General
- Target 1d5e6f06b05e39f726439c058ff11ebf_JaffaCakes118.exe
- Size 270KB
- Sample240506-txd2jadc59
- SHA256 70668c180217f0354ad3da0b852948423b4217cbc8f3cffb986430bd5e5d910c
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 16 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Deletes itself 1 IoCs
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 4 IoCs
- 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\1d5e6f06b05e39f726439c058ff11ebf_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\1d5e6f06b05e39f726439c058ff11ebf_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" \melt "C:\Users\Admin\AppData\Local\Temp\1d5e6f06b05e39f726439c058ff11ebf_JaffaCakes118.exe"2⤵
- UAC bypass
- Deletes itself
- 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/2736-32-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2736-38-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2736-65-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2736-22-0x0000000002A20000-0x0000000002A2E000-memory.dmp
memory/2736-25-0x00000000028D0000-0x00000000028D1000-memory.dmp
memory/2736-26-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2736-28-0x0000000002A20000-0x0000000002A2E000-memory.dmp
memory/2736-27-0x0000000002130000-0x0000000002138000-memory.dmp
memory/2736-29-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2736-62-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2736-35-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2736-18-0x00000000020D0000-0x00000000020D1000-memory.dmp
memory/2736-41-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2736-44-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2736-47-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2736-50-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2736-53-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2736-56-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2736-59-0x0000000000400000-0x000000000044B000-memory.dmp
memory/4200-0-0x00000000021D0000-0x00000000021D1000-memory.dmp
memory/4200-10-0x0000000000400000-0x000000000044B000-memory.dmp