Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    05/09/2026, 11:57

General

  • Target
    2026-09-04_49463200f60e5bf69b83711a953ce492_cryptolocker_elex.exe
  • Size 41KB
  • Sample260905-n4y3dsdf49
  • SHA256 507378d865f5271fbf8a5f53e3f9db43537c80593b9ab75146eb58b874bc6d2b
  • 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\2026-09-04_49463200f60e5bf69b83711a953ce492_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-04_49463200f60e5bf69b83711a953ce492_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4788
    • 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:5368

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 a1b17c715178ca7370923e8258b9e5cadb4e96eae7e7dc95fe3be33883fb0d37
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4788-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/4788-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

        memory/4788-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4788-3-0x0000000003150000-0x0000000003156000-memory.dmp

        memory/5368-17-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/5368-20-0x0000000002090000-0x0000000002096000-memory.dmp

        memory/5368-19-0x0000000008000000-0x000000000800A000-memory.dmp