Analysis
- max time kernel
150s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
26/05/2024, 03:45
General
- Target 2024-05-26_80f35efc007509d21c04d8ab7b5012c1_cryptolocker.exe
- Size 48KB
- Sample240526-ea2fzsdf8v
- SHA256 39787df4d238b97249bc58ca74185b2178f48a038102dfe9b91d60950755c4f3
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\2024-05-26_80f35efc007509d21c04d8ab7b5012c1_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-26_80f35efc007509d21c04d8ab7b5012c1_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/1316-0-0x00000000005A0000-0x00000000005A6000-memory.dmp
memory/1316-2-0x00000000005C0000-0x00000000005C6000-memory.dmp
memory/1316-1-0x00000000005A0000-0x00000000005A6000-memory.dmp