Analysis
- max time kernel
143s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
12/02/2024, 01:24
General
- Target 2024-02-12_18998f3b953d66826d35fec38ed45914_cryptolocker.exe
- Size 42KB
- Sample240212-bssd9agc62
- SHA256 31f590307d1a95fb33302b3ce5892516bfc5780f79eacc64e58f64cfb7f0b5ae
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\2024-02-12_18998f3b953d66826d35fec38ed45914_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-12_18998f3b953d66826d35fec38ed45914_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/828-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/828-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/828-2-0x0000000000400000-0x0000000000406000-memory.dmp
memory/4620-20-0x0000000002090000-0x0000000002096000-memory.dmp