Analysis
- max time kernel
149s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
10/11/2024, 07:28
General
- Target 2024-11-10_cfaeb2f797174066a4934230113fca1a_cryptolocker.exe
- Size 52KB
- Sample241110-jam1tasdmn
- SHA256 9448545f9b80be96946450b3ae8e54f880bdec2801ad01ebf7d18dbdca516e10
Score
7/10
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- UPX packed file 3 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).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-11-10_cfaeb2f797174066a4934230113fca1a_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-10_cfaeb2f797174066a4934230113fca1a_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\rewok.exe"C:\Users\Admin\AppData\Local\Temp\rewok.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
rewok.exe
memory/1364-18-0x0000000000400000-0x000000000040E000-memory.dmp
memory/1364-27-0x0000000002D60000-0x0000000002D66000-memory.dmp
memory/4216-0-0x0000000000400000-0x000000000040E000-memory.dmp
memory/4216-1-0x00000000021C0000-0x00000000021C6000-memory.dmp
memory/4216-2-0x00000000021C0000-0x00000000021C6000-memory.dmp
memory/4216-3-0x0000000000400000-0x0000000000406000-memory.dmp