Analysis
- max time kernel
148s - max time network
148s - platform
windows7_x64 - resource
win7-20240508-en - resource tags
- submitted
09/06/2024, 07:28
General
- Target 2024-06-09_7220786c39dfd9eb9005e11d2dbd68fa_cryptolocker.exe
- Size 78KB
- Sample240609-jaygjsgc92
- SHA256 9bd57e9bfb23884ff1cb95f5a91890fa163fae40c9f7adf14799a49c6773c047
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\2024-06-09_7220786c39dfd9eb9005e11d2dbd68fa_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-09_7220786c39dfd9eb9005e11d2dbd68fa_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
Loading Replay Monitor...
Downloads
asih.exe
memory/1976-0-0x00000000002C0000-0x00000000002C6000-memory.dmp
memory/1976-9-0x00000000002C0000-0x00000000002C6000-memory.dmp
memory/1976-8-0x0000000000500000-0x0000000000510000-memory.dmp
memory/1976-1-0x0000000000600000-0x0000000000606000-memory.dmp
memory/2980-15-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2980-17-0x00000000004E0000-0x00000000004E6000-memory.dmp
memory/2980-24-0x0000000000250000-0x0000000000256000-memory.dmp
memory/2980-25-0x0000000000500000-0x0000000000510000-memory.dmp