Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    08/07/2026, 09:59

General

  • Target
    2026-07-08_12b6e443b8a68563596f7626493b8a80_cryptolocker_elex.exe
  • Size 46KB
  • Sample260708-l1bftaes2x
  • SHA256 d7210834dd8572e3e6db9ae9b26ca9692b7baad22c636673a8d760d3e8fe17ae
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Custom signature
    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\2026-07-08_12b6e443b8a68563596f7626493b8a80_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-08_12b6e443b8a68563596f7626493b8a80_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:732
    • 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:2960

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 47KB
        • SHA256 2b23230f922959bcbe4c6cbb14c9d66cf356bf907b66c5c49c4742e80ba45a1e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/732-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/732-1-0x00000000021F0000-0x00000000021F6000-memory.dmp

        memory/732-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/732-3-0x0000000003010000-0x0000000003016000-memory.dmp

        memory/2960-17-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/2960-20-0x0000000002590000-0x0000000002596000-memory.dmp

        memory/2960-19-0x0000000008000000-0x000000000800A000-memory.dmp