Analysis

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

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    04/07/2026, 04:23

General

  • Target
    2026-07-04_59ae5d7118172d209e362ad06bd70435_cryptolocker_elex.exe
  • Size 40KB
  • Sample260704-ezyfmaa121
  • SHA256 148a6165a82bd5f39427c2644a0561b167eb406c60bdfc3075ba0aa3df554d6e
  • 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\2026-07-04_59ae5d7118172d209e362ad06bd70435_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-04_59ae5d7118172d209e362ad06bd70435_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2684
    • 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:416

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 41KB
        • SHA256 1662e9358a543d6b156d12bfed0cc3748f9f0f330e27cced27aae43bf20ab451
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/416-17-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/416-19-0x0000000003140000-0x0000000003146000-memory.dmp

        memory/416-25-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/2684-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/2684-1-0x00000000007A0000-0x00000000007A6000-memory.dmp

        memory/2684-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/2684-3-0x00000000022E0000-0x00000000022E6000-memory.dmp