Analysis
- max time kernel
149s - max time network
154s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
08/06/2024, 13:52
General
- Target 2024-06-08_9d616e44180b515b9455c3b75b2d83e6_cryptolocker.exe
- Size 39KB
- Sample240608-q6v5macb71
- SHA256 47d3627084d07b4f3c2569762b278600c8cd6cc2c67b7c675962528de0ebe95b
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\2024-06-08_9d616e44180b515b9455c3b75b2d83e6_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-08_9d616e44180b515b9455c3b75b2d83e6_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/2240-0-0x0000000000500000-0x000000000050F000-memory.dmp
memory/2240-1-0x0000000000240000-0x0000000000246000-memory.dmp
memory/2240-2-0x00000000002F0000-0x00000000002F6000-memory.dmp
memory/2240-9-0x0000000000240000-0x0000000000246000-memory.dmp
memory/2240-15-0x0000000000500000-0x000000000050F000-memory.dmp
memory/2540-18-0x0000000000270000-0x0000000000276000-memory.dmp
memory/2540-25-0x0000000000500000-0x000000000050F000-memory.dmp