Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
12/03/2024, 01:32
General
- Target 2024-03-12_40bbd6e7653f0baaeff3dcd78aa1d0f3_cryptolocker.exe
- Size 55KB
- Sample240312-bx6sfaeb63
- SHA256 dec4157e1d59642cadcd26c326b28e79c6ccd3d20108d4830eca9f94eb9ae890
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
- Detection of Cryptolocker Samples 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\2024-03-12_40bbd6e7653f0baaeff3dcd78aa1d0f3_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-12_40bbd6e7653f0baaeff3dcd78aa1d0f3_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
asih.exe
memory/2848-0-0x00000000004C0000-0x00000000004C6000-memory.dmp
memory/2848-1-0x00000000004C0000-0x00000000004C6000-memory.dmp
memory/2848-2-0x00000000004E0000-0x00000000004E6000-memory.dmp
memory/4704-17-0x00000000020F0000-0x00000000020F6000-memory.dmp
memory/4704-19-0x0000000000630000-0x0000000000636000-memory.dmp