Analysis
- max time kernel
148s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
- submitted
21/06/2024, 14:35
General
- Target 0c51f0ffaa5f24dc870866bb2e623db5_JaffaCakes118.exe
- Size 270KB
- Sample240621-ryadmatfla
- SHA256 2a66f3124e40f456379a6411e590a4fefe419369b2a72512c3cde208c6557024
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
- UPX packed file 18 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\0c51f0ffaa5f24dc870866bb2e623db5_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\0c51f0ffaa5f24dc870866bb2e623db5_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\0c51f0ffaa5f24dc870866bb2e623db5_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/440-31-0x0000000000400000-0x000000000049F000-memory.dmp
memory/440-35-0x0000000000400000-0x000000000049F000-memory.dmp
memory/440-20-0x0000000002120000-0x0000000002121000-memory.dmp
memory/440-24-0x00000000022F0000-0x00000000022FE000-memory.dmp
memory/440-68-0x0000000000400000-0x000000000049F000-memory.dmp
memory/440-27-0x00000000022E0000-0x00000000022E1000-memory.dmp
memory/440-28-0x0000000000400000-0x000000000049F000-memory.dmp
memory/440-29-0x0000000002170000-0x0000000002178000-memory.dmp
memory/440-30-0x00000000022F0000-0x00000000022FE000-memory.dmp
memory/440-65-0x0000000000400000-0x000000000049F000-memory.dmp
memory/440-32-0x0000000000400000-0x000000000049F000-memory.dmp
memory/440-62-0x0000000000400000-0x000000000049F000-memory.dmp
memory/440-38-0x0000000000400000-0x000000000049F000-memory.dmp
memory/440-41-0x0000000000400000-0x000000000049F000-memory.dmp
memory/440-44-0x0000000000400000-0x000000000049F000-memory.dmp
memory/440-47-0x0000000000400000-0x000000000049F000-memory.dmp
memory/440-50-0x0000000000400000-0x000000000049F000-memory.dmp
memory/440-53-0x0000000000400000-0x000000000049F000-memory.dmp
memory/440-56-0x0000000000400000-0x000000000049F000-memory.dmp
memory/440-59-0x0000000000400000-0x000000000049F000-memory.dmp
memory/4028-11-0x0000000000400000-0x000000000049F000-memory.dmp
memory/4028-0-0x0000000000400000-0x000000000049F000-memory.dmp
memory/4028-1-0x0000000002220000-0x0000000002221000-memory.dmp