Analysis
- max time kernel
150s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
02/06/2024, 23:09
General
- Target 2024-06-02_5b05b179fbc39ae636e3186687ebc46d_cryptolocker.exe
- Size 44KB
- Sample240602-25h98aae2v
- SHA256 da2292a4414b522ea769a560959d23130b04ffc22e50f8a4f2ad2d766260654f
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 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\2024-06-02_5b05b179fbc39ae636e3186687ebc46d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-02_5b05b179fbc39ae636e3186687ebc46d_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
hasfj.exe
memory/116-17-0x0000000008000000-0x000000000800D000-memory.dmp
memory/116-20-0x0000000003150000-0x0000000003156000-memory.dmp
memory/116-26-0x0000000008000000-0x000000000800D000-memory.dmp
memory/1416-0-0x0000000008000000-0x000000000800D000-memory.dmp
memory/1416-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/1416-2-0x0000000003050000-0x0000000003056000-memory.dmp
memory/1416-9-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/1416-18-0x0000000008000000-0x000000000800D000-memory.dmp