Analysis
- max time kernel
149s - max time network
153s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
03/06/2024, 10:37
General
- Target 2024-06-03_ba2e782b8801fda49829b5f193889754_cryptolocker.exe
- Size 96KB
- Sample240603-mpa7cabe9x
- SHA256 7404efe2e88ae8fe3741ff4895644767abb89afa2ca0bd14f96644a54a2a620e
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\2024-06-03_ba2e782b8801fda49829b5f193889754_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-03_ba2e782b8801fda49829b5f193889754_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/2560-24-0x0000000000420000-0x0000000000426000-memory.dmp
memory/2560-18-0x0000000000450000-0x0000000000456000-memory.dmp
memory/2560-26-0x0000000000500000-0x000000000050F000-memory.dmp
memory/3008-0-0x0000000000500000-0x000000000050F000-memory.dmp
memory/3008-1-0x00000000003B0000-0x00000000003B6000-memory.dmp
memory/3008-2-0x00000000003E0000-0x00000000003E6000-memory.dmp
memory/3008-9-0x00000000003B0000-0x00000000003B6000-memory.dmp
memory/3008-16-0x0000000000500000-0x000000000050F000-memory.dmp