Analysis
- max time kernel
147s - max time network
148s - platform
windows7_x64 - resource
win7-20231129-en - resource tags
- submitted
07/06/2024, 15:25
General
- Target 2024-06-07_2f7ce0bf11827f1085c77d2d3d4dd11d_cryptolocker.exe
- Size 54KB
- Sample240607-stq19abd52
- SHA256 43e5219b8c72b30fbf2c050fa09f4e21b00ef24fd2e97a8bacc584c30d5a9e5f
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\2024-06-07_2f7ce0bf11827f1085c77d2d3d4dd11d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-07_2f7ce0bf11827f1085c77d2d3d4dd11d_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/1528-16-0x0000000000500000-0x0000000000510000-memory.dmp
memory/1528-18-0x00000000004A0000-0x00000000004A6000-memory.dmp
memory/1528-25-0x0000000000300000-0x0000000000306000-memory.dmp
memory/1528-26-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2820-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2820-1-0x00000000004A0000-0x00000000004A6000-memory.dmp
memory/2820-2-0x00000000004A0000-0x00000000004A6000-memory.dmp
memory/2820-3-0x00000000005B0000-0x00000000005B6000-memory.dmp
memory/2820-15-0x0000000000500000-0x0000000000510000-memory.dmp