Analysis
- max time kernel
153s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
11/10/2022, 09:05
General
- Target b6a8911484152044252648f97ff074e23dafedfe706edf5ad3ca0b5a7beb2514.exe
- Size 108KB
- Sample221011-k2flgsfcg5
- SHA256 b6a8911484152044252648f97ff074e23dafedfe706edf5ad3ca0b5a7beb2514
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 4 IoCs
- Executes dropped EXE 1 IoCs
- UPX packed file 7 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 4 IoCs
- Adds Run key to start application 2 TTPs 2 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). Likely ransomware behaviour.
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
- System policy modification 1 TTPs 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b6a8911484152044252648f97ff074e23dafedfe706edf5ad3ca0b5a7beb2514.exe"C:\Users\Admin\AppData\Local\Temp\b6a8911484152044252648f97ff074e23dafedfe706edf5ad3ca0b5a7beb2514.exe"1⤵
- 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"2⤵
- 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
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
cmsetac.dll
cmsetac.dll
mstwain32.exe
mstwain32.exe
ntdtcstp.dll
ntdtcstp.dll
memory/3568-132-0x0000000000400000-0x0000000000450000-memory.dmp
memory/3568-137-0x0000000000400000-0x0000000000450000-memory.dmp
memory/3568-133-0x0000000000400000-0x0000000000450000-memory.dmp
memory/4968-142-0x0000000003080000-0x000000000308E000-memory.dmp
memory/4968-143-0x0000000000400000-0x0000000000450000-memory.dmp
memory/4968-144-0x0000000000400000-0x0000000000450000-memory.dmp