Analysis
- max time kernel
147s - max time network
149s - platform
windows7_x64 - resource
win7-20240508-en - resource tags
- submitted
13/06/2024, 09:25
General
- Target 2024-06-13_cfa038a9c0d6d7060e809b99bd30f778_cryptolocker.exe
- Size 40KB
- Sample240613-ld3lsasfrc
- SHA256 fd3022968d1abef2fceb469732ccf395727a86443569228ff45edb82b1843e0b
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\2024-06-13_cfa038a9c0d6d7060e809b99bd30f778_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-13_cfa038a9c0d6d7060e809b99bd30f778_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/1244-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/1244-1-0x00000000002C0000-0x00000000002C6000-memory.dmp
memory/1244-2-0x00000000004C0000-0x00000000004C6000-memory.dmp
memory/1244-9-0x00000000002C0000-0x00000000002C6000-memory.dmp
memory/1244-16-0x0000000000500000-0x0000000000510000-memory.dmp
memory/1496-17-0x0000000000500000-0x0000000000510000-memory.dmp
memory/1496-19-0x0000000000340000-0x0000000000346000-memory.dmp
memory/1496-26-0x0000000000240000-0x0000000000246000-memory.dmp
memory/1496-27-0x0000000000500000-0x0000000000510000-memory.dmp