Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
10/06/2024, 21:45
General
- Target 2024-06-10_f934fae6bfbb6268566f86cd9b38e5ec_cryptolocker.exe
- Size 95KB
- Sample240610-1l3dbasdkp
- SHA256 2c571c3a1e8a8d5e005c8f2e58124ecb37aa4e10449898c5a4e44a84088476eb
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
- Detection of Cryptolocker Samples 4 IoCs
- UPX dump on OEP (original entry point) 4 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 4 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-10_f934fae6bfbb6268566f86cd9b38e5ec_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-10_f934fae6bfbb6268566f86cd9b38e5ec_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
misid.exe
memory/116-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/116-9-0x0000000000620000-0x0000000000626000-memory.dmp
memory/116-2-0x0000000000750000-0x0000000000756000-memory.dmp
memory/116-1-0x0000000000620000-0x0000000000626000-memory.dmp
memory/116-16-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2636-25-0x0000000000520000-0x0000000000526000-memory.dmp
memory/2636-19-0x00000000006C0000-0x00000000006C6000-memory.dmp
memory/2636-26-0x0000000000500000-0x0000000000510000-memory.dmp