Analysis
- max time kernel
150s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
19/04/2026, 04:27
General
- Target 2026-04-19_0a783f39ed809d3388a043ae328c809b_cryptolocker_elex.exe
- Size 40KB
- Sample260419-e3cy4acv2k
- SHA256 4258739a0c573db439ca4e75ae694927b0443240a5885c326903f0f4135af45a
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
- Detection of Cryptolocker Samples 5 IoCs
- Detects executables built or packed with MPress PE compressor 5 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\2026-04-19_0a783f39ed809d3388a043ae328c809b_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-19_0a783f39ed809d3388a043ae328c809b_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
misid.exe
memory/4300-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4300-1-0x0000000000504000-0x0000000000505000-memory.dmp
memory/4300-2-0x00000000006A0000-0x00000000006A6000-memory.dmp
memory/4300-3-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4300-4-0x0000000002070000-0x0000000002076000-memory.dmp
memory/4300-18-0x0000000002820000-0x000000000285B000-memory.dmp
memory/4504-19-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4504-21-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4504-22-0x0000000001FF0000-0x0000000001FF6000-memory.dmp