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
    17/07/2026, 14:50

General

  • Target
    2026-07-17_d01a176b19b105ee8eeb97d89082e927_cryptolocker_elex.exe
  • Size 4.6MB
  • Sample260717-r7k7gshv21
  • SHA256 fde3ac65cd5584208498e3208b47cacf44e852571f47c5a346e0a34980a59d24
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detects executables built or packed with MPress PE compressor 1 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\2026-07-17_d01a176b19b105ee8eeb97d89082e927_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-17_d01a176b19b105ee8eeb97d89082e927_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4728
    • 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:1056

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 4.6MB
        • SHA256 dba065131867aaa5fe9f255d8e96e11424bd436f488cda16fb2c433ad188c390
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1056-17-0x0000000008000000-0x0000000008022000-memory.dmp

        memory/1056-25-0x0000000008000000-0x0000000008022000-memory.dmp

        memory/1056-19-0x0000000003010000-0x0000000003016000-memory.dmp

        memory/4728-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/4728-1-0x0000000002250000-0x0000000002256000-memory.dmp

        memory/4728-2-0x0000000008000000-0x0000000008022000-memory.dmp

        memory/4728-3-0x0000000003150000-0x0000000003156000-memory.dmp