Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
28/06/2024, 00:51
General
- Target 182eeb2500c27dcff8d14c5dab88b6c2_JaffaCakes118.exe
- Size 270KB
- Sample240628-a7wjsasakh
- SHA256 99fb79bb47e14cbb2ac44af8e5b33b64f9f90ff479831fb4a4f5f372b6329143
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\182eeb2500c27dcff8d14c5dab88b6c2_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\182eeb2500c27dcff8d14c5dab88b6c2_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\182eeb2500c27dcff8d14c5dab88b6c2_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
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4240,i,18168883380598738769,14202261231630113808,262144 --variations-seed-version --mojo-platform-channel-handle=4064 /prefetch:81⤵
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/2856-10-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2856-0-0x0000000000A20000-0x0000000000A21000-memory.dmp
memory/3888-32-0x0000000000400000-0x000000000044B000-memory.dmp
memory/3888-38-0x0000000000400000-0x000000000044B000-memory.dmp
memory/3888-25-0x0000000002240000-0x0000000002241000-memory.dmp
memory/3888-26-0x0000000000400000-0x000000000044B000-memory.dmp
memory/3888-28-0x0000000002250000-0x000000000225E000-memory.dmp
memory/3888-27-0x00000000005F0000-0x00000000005F8000-memory.dmp
memory/3888-29-0x0000000000400000-0x000000000044B000-memory.dmp
memory/3888-18-0x00000000005E0000-0x00000000005E1000-memory.dmp
memory/3888-35-0x0000000000400000-0x000000000044B000-memory.dmp
memory/3888-22-0x0000000002250000-0x000000000225E000-memory.dmp
memory/3888-41-0x0000000000400000-0x000000000044B000-memory.dmp
memory/3888-44-0x0000000000400000-0x000000000044B000-memory.dmp
memory/3888-47-0x0000000000400000-0x000000000044B000-memory.dmp
memory/3888-50-0x0000000000400000-0x000000000044B000-memory.dmp
memory/3888-53-0x0000000000400000-0x000000000044B000-memory.dmp
memory/3888-56-0x0000000000400000-0x000000000044B000-memory.dmp
memory/3888-59-0x0000000000400000-0x000000000044B000-memory.dmp
memory/3888-62-0x0000000000400000-0x000000000044B000-memory.dmp
memory/3888-65-0x0000000000400000-0x000000000044B000-memory.dmp