Analysis
- max time kernel
161s - max time network
167s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
- submitted
18/04/2024, 10:30
General
- Target 2024-04-18_371182bffacf3109cf8be0e4b1e8d77f_cryptolocker.exe
- Size 41KB
- Sample240418-mkad9aad68
- SHA256 e1b3601f3cacc588a31375508dcd51c8d894fd07c76a694b07f5d1cd47b219c0
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\2024-04-18_371182bffacf3109cf8be0e4b1e8d77f_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-18_371182bffacf3109cf8be0e4b1e8d77f_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/984-17-0x0000000003010000-0x0000000003016000-memory.dmp
memory/1092-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/1092-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/1092-2-0x0000000003150000-0x0000000003156000-memory.dmp