Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
11/06/2024, 02:38
General
- Target 2024-06-11_ca25ec5fea514cd5a675260cf88895d5_cryptolocker.exe
- Size 56KB
- Sample240611-c4vt7a1dlf
- SHA256 68a0a74c2775ab6bd86097dfc695608d41cc85d566e4328f9ad1b6076e4b8bce
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 3 IoCs
- UPX dump on OEP (original entry point) 3 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- 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\2024-06-11_ca25ec5fea514cd5a675260cf88895d5_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-11_ca25ec5fea514cd5a675260cf88895d5_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\gewos.exe"C:\Users\Admin\AppData\Local\Temp\gewos.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
gewos.exe
memory/3380-0-0x0000000000400000-0x000000000040E000-memory.dmp
memory/3380-1-0x00000000020A0000-0x00000000020A6000-memory.dmp
memory/3380-2-0x0000000000400000-0x0000000000406000-memory.dmp
memory/3380-9-0x00000000020A0000-0x00000000020A6000-memory.dmp
memory/4316-17-0x0000000000400000-0x000000000040E000-memory.dmp
memory/4316-27-0x00000000004E0000-0x00000000004E6000-memory.dmp