Analysis
- max time kernel
148s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
- submitted
03/07/2024, 10:17
General
- Target 21fd45499fe5580bf4e3ee417b66e090_JaffaCakes118.exe
- Size 320KB
- Sample240703-mbebva1hrn
- SHA256 d2bc618f80d81110a0ce9abc8886eb946b2533b30bf5bea5c0ae1b4e915e1ff3
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.
- Deletes itself 1 IoCs
- 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\21fd45499fe5580bf4e3ee417b66e090_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\21fd45499fe5580bf4e3ee417b66e090_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\21fd45499fe5580bf4e3ee417b66e090_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/3152-0-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3152-1-0x0000000000A40000-0x0000000000A41000-memory.dmp
memory/3152-11-0x0000000000400000-0x0000000000453000-memory.dmp
memory/4236-20-0x0000000000560000-0x0000000000561000-memory.dmp
memory/4236-12-0x0000000000400000-0x0000000000453000-memory.dmp
memory/4236-24-0x00000000021E0000-0x00000000021EE000-memory.dmp
memory/4236-27-0x00000000021D0000-0x00000000021D1000-memory.dmp
memory/4236-28-0x0000000000570000-0x0000000000578000-memory.dmp
memory/4236-29-0x00000000021E0000-0x00000000021EE000-memory.dmp
memory/4236-30-0x0000000000400000-0x0000000000453000-memory.dmp