Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
04/11/2026, 20:17
General
- Target 2026-11-03_559a1057fcdb606c52a20e6d92f123b6_cryptolocker_elex.exe
- Size 36KB
- Sample261104-y2ntrazv8m
- SHA256 cdc5f4ad1ed9567e83d6c8150ab1739e75fd285f995e774cf8faa7ade5bc3a83
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
- Executes dropped EXE 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- 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\2026-11-03_559a1057fcdb606c52a20e6d92f123b6_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-11-03_559a1057fcdb606c52a20e6d92f123b6_cryptolocker_elex.exe"1⤵
- 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
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
hasfj.exe
memory/3328-19-0x0000000008000000-0x000000000800A000-memory.dmp
memory/3328-21-0x0000000008000000-0x000000000800A000-memory.dmp
memory/3328-22-0x0000000002280000-0x0000000002286000-memory.dmp
memory/5636-0-0x0000000008000000-0x000000000800A000-memory.dmp
memory/5636-1-0x0000000008004000-0x0000000008005000-memory.dmp
memory/5636-2-0x00000000037E0000-0x00000000037E6000-memory.dmp
memory/5636-3-0x0000000008000000-0x000000000800A000-memory.dmp
memory/5636-4-0x0000000003810000-0x0000000003816000-memory.dmp