Analysis
- max time kernel
149s - max time network
138s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
06/06/2024, 21:35
General
- Target 2024-06-06_cb7bf86ef245dda0b3b347c2eedf287f_cryptolocker.exe
- Size 60KB
- Sample240606-1fm2fade25
- SHA256 3c4954218eac6a224125c94835bbb28cc952ef0fad93e058c55b732abff3687d
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
- Detection of Cryptolocker Samples 5 IoCs
- UPX dump on OEP (original entry point) 5 IoCs
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 1 IoCs
- UPX packed file 5 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 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-06_cb7bf86ef245dda0b3b347c2eedf287f_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-06_cb7bf86ef245dda0b3b347c2eedf287f_cryptolocker.exe"1⤵
- Loads dropped DLL
- 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/2180-16-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2180-18-0x0000000000210000-0x0000000000216000-memory.dmp
memory/2180-25-0x00000000001D0000-0x00000000001D6000-memory.dmp
memory/2180-26-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2336-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2336-1-0x00000000002D0000-0x00000000002D6000-memory.dmp
memory/2336-2-0x00000000002D0000-0x00000000002D6000-memory.dmp
memory/2336-3-0x0000000000470000-0x0000000000476000-memory.dmp
memory/2336-15-0x0000000000500000-0x0000000000510000-memory.dmp