Analysis
- max time kernel
150s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
05/09/2024, 12:27
General
- Target 2024-09-05_4771f7ceb61f6b7a486b8cd9cd4d8efa_cryptolocker.exe
- Size 35KB
- Sample240905-pm82ps1gkh
- SHA256 a2e8ebfe7f31df30c6c8827762c4e0309ce5e235ef4c3c4645ccfffe50275e16
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
- 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\2024-09-05_4771f7ceb61f6b7a486b8cd9cd4d8efa_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-05_4771f7ceb61f6b7a486b8cd9cd4d8efa_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
hasfj.exe
memory/4700-19-0x0000000003010000-0x0000000003016000-memory.dmp
memory/4700-25-0x0000000002D60000-0x0000000002D66000-memory.dmp
memory/4700-26-0x0000000008000000-0x000000000800A000-memory.dmp
memory/5048-0-0x0000000008000000-0x000000000800A000-memory.dmp
memory/5048-1-0x0000000000740000-0x0000000000746000-memory.dmp
memory/5048-2-0x0000000000740000-0x0000000000746000-memory.dmp
memory/5048-3-0x0000000002280000-0x0000000002286000-memory.dmp
memory/5048-17-0x0000000008000000-0x000000000800A000-memory.dmp