Analysis
- max time kernel
148s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
10/06/2024, 21:37
General
- Target 2024-06-10_a21c08c3ea498909e478defc9461c09d_cryptolocker.exe
- Size 80KB
- Sample240610-1gkmps1eph
- SHA256 cf7267048f58fa1be4bdcd8524efb028a1d5bf8cb85a311d553544a212b7de8c
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
- Detection of Cryptolocker Samples 4 IoCs
- UPX dump on OEP (original entry point) 4 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 4 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\2024-06-10_a21c08c3ea498909e478defc9461c09d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-10_a21c08c3ea498909e478defc9461c09d_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/2344-19-0x00000000006D0000-0x00000000006D6000-memory.dmp
memory/2344-25-0x00000000006B0000-0x00000000006B6000-memory.dmp
memory/2344-26-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2844-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2844-1-0x0000000000630000-0x0000000000636000-memory.dmp
memory/2844-2-0x0000000000760000-0x0000000000766000-memory.dmp
memory/2844-9-0x0000000000630000-0x0000000000636000-memory.dmp
memory/2844-16-0x0000000000500000-0x0000000000510000-memory.dmp