Analysis
- max time kernel
148s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240704-en - resource tags
- submitted
05/07/2024, 10:42
General
- Target 26dbfd9cc66c92e3a9e52f9d4415f8b9_JaffaCakes118.exe
- Size 158KB
- Sample240705-mr3dlswhql
- SHA256 28048428e9286e582ac974c03c1ba272a0ee43781a95e3536eb6facaeb4555f1
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 3 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 4 IoCs
- UPX packed file 7 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
- Suspicious use of SetThreadContext 2 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 FindShellTrayWindow 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 13 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\26dbfd9cc66c92e3a9e52f9d4415f8b9_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\26dbfd9cc66c92e3a9e52f9d4415f8b9_JaffaCakes118.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\26dbfd9cc66c92e3a9e52f9d4415f8b9_JaffaCakes118.exeC:\Users\Admin\AppData\Local\Temp\26dbfd9cc66c92e3a9e52f9d4415f8b9_JaffaCakes118.exe2⤵
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Windows\mstwain32.exe"C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\26dbfd9cc66c92e3a9e52f9d4415f8b9_JaffaCakes118.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\mstwain32.exeC:\Windows\mstwain32.exe4⤵
- 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
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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/968-22-0x0000000000400000-0x0000000000451000-memory.dmp
memory/968-24-0x00007FF898850000-0x00007FF898A45000-memory.dmp
memory/968-37-0x0000000000750000-0x0000000000758000-memory.dmp
memory/968-18-0x0000000000400000-0x0000000000451000-memory.dmp
memory/968-41-0x00007FF898850000-0x00007FF898A45000-memory.dmp
memory/968-21-0x0000000000400000-0x0000000000451000-memory.dmp
memory/968-25-0x0000000000400000-0x0000000000451000-memory.dmp
memory/968-38-0x00000000030F0000-0x00000000030FE000-memory.dmp
memory/968-35-0x00000000030F0000-0x00000000030FE000-memory.dmp
memory/2476-3-0x0000000000400000-0x0000000000451000-memory.dmp
memory/2476-5-0x00007FF898850000-0x00007FF898A45000-memory.dmp
memory/2476-0-0x0000000000400000-0x0000000000451000-memory.dmp
memory/2476-17-0x00007FF898850000-0x00007FF898A45000-memory.dmp
memory/2476-4-0x0000000000400000-0x0000000000451000-memory.dmp
memory/2944-2-0x0000000010000000-0x000000001002E000-memory.dmp
memory/3840-23-0x0000000010000000-0x000000001002E000-memory.dmp