Analysis
- max time kernel
147s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
26/04/2024, 19:02
General
- Target 017288399fe5574490d80bcaccacde13_JaffaCakes118.exe
- Size 270KB
- Sample240426-xp1gcaba4s
- SHA256 587267ea57e78d1b1d313b8730ae3c66d20bb40bb4d5f68453b9b071e3ac2592
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\017288399fe5574490d80bcaccacde13_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\017288399fe5574490d80bcaccacde13_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\017288399fe5574490d80bcaccacde13_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/4624-8-0x0000000000400000-0x000000000044B000-memory.dmp
memory/4964-28-0x0000000000400000-0x000000000044B000-memory.dmp
memory/4964-37-0x0000000000400000-0x000000000044B000-memory.dmp
memory/4964-24-0x0000000002F90000-0x0000000002F91000-memory.dmp
memory/4964-25-0x0000000000400000-0x000000000044B000-memory.dmp
memory/4964-26-0x0000000000630000-0x0000000000638000-memory.dmp
memory/4964-27-0x00000000030E0000-0x00000000030EE000-memory.dmp
memory/4964-17-0x0000000000620000-0x0000000000621000-memory.dmp
memory/4964-31-0x0000000000400000-0x000000000044B000-memory.dmp
memory/4964-34-0x0000000000400000-0x000000000044B000-memory.dmp
memory/4964-21-0x00000000030E0000-0x00000000030EE000-memory.dmp
memory/4964-40-0x0000000000400000-0x000000000044B000-memory.dmp
memory/4964-43-0x0000000000400000-0x000000000044B000-memory.dmp
memory/4964-46-0x0000000000400000-0x000000000044B000-memory.dmp
memory/4964-49-0x0000000000400000-0x000000000044B000-memory.dmp
memory/4964-52-0x0000000000400000-0x000000000044B000-memory.dmp
memory/4964-55-0x0000000000400000-0x000000000044B000-memory.dmp
memory/4964-58-0x0000000000400000-0x000000000044B000-memory.dmp
memory/4964-61-0x0000000000400000-0x000000000044B000-memory.dmp
memory/4964-64-0x0000000000400000-0x000000000044B000-memory.dmp