Analysis
- max time kernel
148s - max time network
148s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
12/06/2024, 15:33
General
- Target 2024-06-12_e4eb63de14f56983b365b68199cf2c4c_cryptolocker.exe
- Size 92KB
- Sample240612-sy76bstfpr
- SHA256 b8c87dea9554b06b87fd88d9d5f23f0dfc41368132cc2140054d75a16aa9d01d
Malware Config
Signatures
- Detection of CryptoLocker Variants 6 IoCs
- Detection of Cryptolocker Samples 6 IoCs
- UPX dump on OEP (original entry point) 6 IoCs
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 1 IoCs
- UPX packed file 6 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\2024-06-12_e4eb63de14f56983b365b68199cf2c4c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-12_e4eb63de14f56983b365b68199cf2c4c_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/284-19-0x0000000000500000-0x000000000050F000-memory.dmp
memory/284-27-0x0000000000240000-0x0000000000246000-memory.dmp
memory/284-20-0x0000000000300000-0x0000000000306000-memory.dmp
memory/284-28-0x0000000000500000-0x000000000050F000-memory.dmp
memory/2944-0-0x00000000002D0000-0x00000000002D6000-memory.dmp
memory/2944-1-0x0000000000500000-0x000000000050F000-memory.dmp
memory/2944-3-0x0000000000350000-0x0000000000356000-memory.dmp
memory/2944-9-0x00000000002D0000-0x00000000002D6000-memory.dmp
memory/2944-13-0x0000000002270000-0x000000000227F000-memory.dmp
memory/2944-17-0x0000000000500000-0x000000000050F000-memory.dmp