Analysis
- max time kernel
148s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
01/06/2024, 18:25
General
- Target 2024-06-01_420d54ff31a7ef2e05ff4e0b643173db_cryptolocker.exe
- Size 45KB
- Sample240601-w2ws9aah9w
- SHA256 35d9637bd9b44fcaedc53e7f72f1289741bd266e04c0c29b95aa389a05cfaa5f
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- 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\2024-06-01_420d54ff31a7ef2e05ff4e0b643173db_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-01_420d54ff31a7ef2e05ff4e0b643173db_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\rewok.exe"C:\Users\Admin\AppData\Local\Temp\rewok.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
rewok.exe
memory/2788-0-0x0000000002250000-0x0000000002256000-memory.dmp
memory/2788-1-0x0000000000400000-0x0000000000406000-memory.dmp
memory/2788-8-0x0000000002250000-0x0000000002256000-memory.dmp
memory/4956-25-0x0000000002200000-0x0000000002206000-memory.dmp