Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
20/04/2026, 14:02
General
- Target 2026-04-20_bfc673e59967023fb7cbacf10843338a_cryptolocker_elex.exe
- Size 42KB
- Sample260420-rb7evacv9m
- SHA256 207fe08caa600ae2d62b8afcc9bb068c1bc1ce16c7d83e1803df7dc76f980a77
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 4 IoCs
- 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 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-20_bfc673e59967023fb7cbacf10843338a_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-20_bfc673e59967023fb7cbacf10843338a_cryptolocker_elex.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 v16
Replay Monitor
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Downloads
hasfj.exe
memory/4336-0-0x0000000008004000-0x0000000008005000-memory.dmp
memory/4336-1-0x0000000003120000-0x0000000003126000-memory.dmp
memory/4336-2-0x0000000008000000-0x000000000800A000-memory.dmp
memory/4336-3-0x00000000033D0000-0x00000000033D6000-memory.dmp
memory/4336-17-0x0000000002070000-0x00000000022F1000-memory.dmp
memory/5944-18-0x0000000008000000-0x000000000800A000-memory.dmp
memory/5944-20-0x0000000002810000-0x0000000002816000-memory.dmp
memory/5944-26-0x0000000008000000-0x000000000800A000-memory.dmp
memory/5944-27-0x0000000001F20000-0x00000000021A1000-memory.dmp
memory/5944-33-0x0000000001F20000-0x00000000021A1000-memory.dmp
memory/5944-39-0x0000000001F20000-0x00000000021A1000-memory.dmp