Analysis
- max time kernel
149s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
03/06/2024, 11:44
General
- Target 2024-06-03_c21f0096b4c036a307e0f0cd591da82b_cryptolocker.exe
- Size 45KB
- Sample240603-nv9grsdc7v
- SHA256 c1a60bff16786d6c8ed15fe85a2fe4d707ce29f52738384f89d5d20251ef5f29
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\2024-06-03_c21f0096b4c036a307e0f0cd591da82b_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-03_c21f0096b4c036a307e0f0cd591da82b_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/944-25-0x00000000020D0000-0x00000000020D6000-memory.dmp
memory/2544-0-0x00000000021D0000-0x00000000021D6000-memory.dmp
memory/2544-8-0x00000000021D0000-0x00000000021D6000-memory.dmp
memory/2544-1-0x0000000000400000-0x0000000000406000-memory.dmp