Analysis
- max time kernel
148s - max time network
149s - platform
windows7_x64 - resource
win7-20231129-en - resource tags
- submitted
25/05/2024, 02:34
General
- Target 2024-05-25_30d6b602758c18b0275f026bc40f146c_cryptolocker.exe
- Size 95KB
- Sample240525-c2gjsabg39
- SHA256 9c337cc5f31f5eab541cb6d6b1a7f6591559f8eeb28a51171b00dc552f9734e1
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\2024-05-25_30d6b602758c18b0275f026bc40f146c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-25_30d6b602758c18b0275f026bc40f146c_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/2656-16-0x0000000000500000-0x000000000050F000-memory.dmp
memory/2656-25-0x0000000000500000-0x000000000050F000-memory.dmp
memory/3004-0-0x0000000000240000-0x0000000000246000-memory.dmp
memory/3004-1-0x0000000000280000-0x0000000000286000-memory.dmp
memory/3004-9-0x0000000000240000-0x0000000000246000-memory.dmp
memory/3004-8-0x0000000000500000-0x000000000050F000-memory.dmp