Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
25/05/2024, 02:48
General
- Target 2024-05-25_8cc5f2a2e3a048a62afaae63940a9731_cryptolocker.exe
- Size 56KB
- Sample240525-daerjscb53
- SHA256 279c5f465464af312ab7f3f28b60224b0a087775986741c3b66f36d20889e02f
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\2024-05-25_8cc5f2a2e3a048a62afaae63940a9731_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-25_8cc5f2a2e3a048a62afaae63940a9731_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/3952-0-0x00000000005B0000-0x00000000005B6000-memory.dmp
memory/3952-1-0x00000000005B0000-0x00000000005B6000-memory.dmp
memory/3952-2-0x0000000002070000-0x0000000002076000-memory.dmp
memory/4264-17-0x0000000001FF0000-0x0000000001FF6000-memory.dmp
memory/4264-23-0x0000000001FC0000-0x0000000001FC6000-memory.dmp