Analysis
- max time kernel
149s - max time network
151s - platform
windows7_x64 - resource
win7-20240508-en - resource tags
- submitted
02/06/2024, 23:44
General
- Target 2024-06-02_07d9d9c4f1c3c9709cacee23b3ebff5c_cryptolocker.exe
- Size 24KB
- Sample240602-3rb5esbe2z
- SHA256 e46cdf1a048d94a7086ffc4b7013855fb6f57fe124f66ed952b98a1f5df35a72
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 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\2024-06-02_07d9d9c4f1c3c9709cacee23b3ebff5c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-02_07d9d9c4f1c3c9709cacee23b3ebff5c_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
hasfj.exe
memory/2704-17-0x0000000008000000-0x000000000800E000-memory.dmp
memory/2704-19-0x00000000002B0000-0x00000000002B6000-memory.dmp
memory/2704-26-0x00000000002A0000-0x00000000002A6000-memory.dmp
memory/2704-27-0x0000000008000000-0x000000000800E000-memory.dmp
memory/2944-0-0x0000000008000000-0x000000000800E000-memory.dmp
memory/2944-1-0x00000000005C0000-0x00000000005C6000-memory.dmp
memory/2944-2-0x00000000005E0000-0x00000000005E6000-memory.dmp
memory/2944-9-0x00000000005C0000-0x00000000005C6000-memory.dmp
memory/2944-16-0x0000000008000000-0x000000000800E000-memory.dmp