Analysis
- max time kernel
147s - max time network
148s - platform
windows7_x64 - resource
win7-20240508-en - resource tags
- submitted
10/06/2024, 04:45
General
- Target 2024-06-10_6feb3aa6ae0b59d82ef8b243abb27ab8_cryptolocker.exe
- Size 39KB
- Sample240610-fdjwsach82
- SHA256 e66f8276d0074e1a2ac207ae40018a337177880c8d002f35f534c1d102d6adfd
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
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 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 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-10_6feb3aa6ae0b59d82ef8b243abb27ab8_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-10_6feb3aa6ae0b59d82ef8b243abb27ab8_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/1608-0-0x0000000000260000-0x0000000000266000-memory.dmp
memory/1608-1-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/1608-8-0x0000000000500000-0x0000000000510000-memory.dmp
memory/1608-9-0x0000000000260000-0x0000000000266000-memory.dmp
memory/2232-16-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2232-18-0x0000000000340000-0x0000000000346000-memory.dmp
memory/2232-25-0x00000000002C0000-0x00000000002C6000-memory.dmp
memory/2232-26-0x0000000000500000-0x0000000000510000-memory.dmp