Analysis
- max time kernel
150s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
08/03/2024, 20:11
General
- Target 2024-03-08_2f4fde435ab3989498b1da032c4e6115_cryptolocker.exe
- Size 387KB
- Sample240308-yynpksfb47
- SHA256 644f380be34849e40b8856477f5b1911bb8dfe5a90d51157966c9dc6138d8b33
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\2024-03-08_2f4fde435ab3989498b1da032c4e6115_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-08_2f4fde435ab3989498b1da032c4e6115_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/876-0-0x0000000002120000-0x0000000002126000-memory.dmp
memory/876-1-0x0000000002120000-0x0000000002126000-memory.dmp
memory/876-2-0x0000000003010000-0x0000000003016000-memory.dmp
memory/2452-23-0x00000000020A0000-0x00000000020A6000-memory.dmp