Analysis
- max time kernel
62s - max time network
51s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
10/06/2024, 21:53
General
- Target 4d1e5f808b9e90b9b7ac9e32b4e11b2ef223745fa707aa4c34f60e3bd72ae42a.exe
- Size 134KB
- Sample240610-1rlmrasaqd
- SHA256 4d1e5f808b9e90b9b7ac9e32b4e11b2ef223745fa707aa4c34f60e3bd72ae42a
Score
9/10
Malware Config
Signatures
- UPX dump on OEP (original entry point) 6 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- UPX packed file 6 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Adds Run key to start application 2 TTPs 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\4d1e5f808b9e90b9b7ac9e32b4e11b2ef223745fa707aa4c34f60e3bd72ae42a.exe"C:\Users\Admin\AppData\Local\Temp\4d1e5f808b9e90b9b7ac9e32b4e11b2ef223745fa707aa4c34f60e3bd72ae42a.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
-
C:\ProgramData\Update\wuauclt.exe"C:\ProgramData\Update\wuauclt.exe" /run2⤵
- Executes dropped EXE
-
-
C:\windows\SysWOW64\cmd.exe"C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\4d1e5f808b9e90b9b7ac9e32b4e11b2ef223745fa707aa4c34f60e3bd72ae42a.exe" >> NUL2⤵
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
wuauclt.exe
memory/3112-0-0x00000000009B0000-0x00000000009D8000-memory.dmp
memory/3112-6-0x00000000009B0000-0x00000000009D8000-memory.dmp
memory/3112-8-0x00000000009B0000-0x00000000009D8000-memory.dmp
memory/3528-4-0x0000000000DD0000-0x0000000000DF8000-memory.dmp
memory/3528-7-0x0000000000DD0000-0x0000000000DF8000-memory.dmp