Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    19/09/2026, 16:56

General

  • Target
    2026-09-19_2087126bfa06d2382ee3222d5d38d3d2_cryptolocker_elex.exe
  • Size 48KB
  • Sample260919-vf3h8stdja
  • SHA256 4c40be8accd0d876bac7d9599dc20d035051066350da65d94f0d61a008bf71b2
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection 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\2026-09-19_2087126bfa06d2382ee3222d5d38d3d2_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-19_2087126bfa06d2382ee3222d5d38d3d2_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1712
    • 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
      PID:4448

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        hasfj.exe

        • Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
        • Size 49KB
        • SHA256 84ff97cdd1e6517b773169a29d4fa501b6417c827f4f631f76389f94a246d555
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1712-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/1712-1-0x0000000000640000-0x0000000000646000-memory.dmp

        memory/1712-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/1712-3-0x0000000003140000-0x0000000003146000-memory.dmp

        memory/4448-17-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4448-19-0x0000000008000000-0x000000000800A000-memory.dmp