Analysis
- max time kernel
150s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
25/05/2024, 02:48
General
- Target 2024-05-25_8dfd1649614284d1bc3ad6f79a4dd1b6_cryptolocker.exe
- Size 43KB
- Sample240525-dakb2acb57
- SHA256 9090cc5df9d1ccfb7609b5bba4d218d6cc5d6d06e54579b3bb38e41722e18dd8
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 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_8dfd1649614284d1bc3ad6f79a4dd1b6_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-25_8dfd1649614284d1bc3ad6f79a4dd1b6_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/216-0-0x0000000008000000-0x000000000800D000-memory.dmp
memory/216-1-0x0000000002210000-0x0000000002216000-memory.dmp
memory/216-9-0x0000000002210000-0x0000000002216000-memory.dmp
memory/216-2-0x0000000003010000-0x0000000003016000-memory.dmp
memory/216-18-0x0000000008000000-0x000000000800D000-memory.dmp
memory/1112-17-0x0000000008000000-0x000000000800D000-memory.dmp
memory/1112-26-0x0000000002D60000-0x0000000002D66000-memory.dmp
memory/1112-27-0x0000000008000000-0x000000000800D000-memory.dmp