Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    22/05/2026, 09:51

General

  • Target
    2026-05-22_45980f3a8184733455de8f5cfd696c65_cryptolocker_elex.exe
  • Size 44KB
  • Sample260522-lvlplabt7s
  • SHA256 a3a90074b481e1e47d0f5ae91732f82fc28f20b730a5da1dd3613ced042555b6
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • 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\2026-05-22_45980f3a8184733455de8f5cfd696c65_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-22_45980f3a8184733455de8f5cfd696c65_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4492
    • 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:944

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        hasfj.exe

        • Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
        • Size 44KB
        • SHA256 725560359075e04573cf8f01426fe71933f2d52402feb22a6ab0ab4c16d93356
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/944-17-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/944-25-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4492-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/4492-1-0x0000000002310000-0x0000000002316000-memory.dmp

        memory/4492-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4492-3-0x0000000003110000-0x0000000003116000-memory.dmp