Analysis
- max time kernel
150s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
02/06/2024, 22:25
General
- Target 2024-06-02_6c4ac46916d32700e41fb9bc73e9418c_cryptolocker.exe
- Size 44KB
- Sample240602-2b5alaac79
- SHA256 9e55b49f7a5d313f08f4e1c395dba8a7aea35f73ba800b4a4c8f297532081708
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_6c4ac46916d32700e41fb9bc73e9418c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-02_6c4ac46916d32700e41fb9bc73e9418c_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
lossy.exe
memory/2156-18-0x0000000008000000-0x000000000800A000-memory.dmp
memory/2156-26-0x00000000006A0000-0x00000000006A6000-memory.dmp
memory/2156-20-0x00000000006C0000-0x00000000006C6000-memory.dmp
memory/2156-27-0x0000000008000000-0x000000000800A000-memory.dmp
memory/4636-0-0x0000000008000000-0x000000000800A000-memory.dmp
memory/4636-1-0x0000000002040000-0x0000000002046000-memory.dmp
memory/4636-2-0x0000000002060000-0x0000000002066000-memory.dmp
memory/4636-9-0x0000000002040000-0x0000000002046000-memory.dmp
memory/4636-17-0x0000000008000000-0x000000000800A000-memory.dmp