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
    11/08/2026, 00:54

General

  • Target
    2026-08-10_ce09ef7eb96965b3f7b3b5af41ab31e7_cryptolocker_elex.exe
  • Size 52KB
  • Sample260811-a9fakssdmc
  • SHA256 ff537dbd070d975a66ecbfa7952c6a1ee06d5c489e052fc89a1ed084ca51fba2
  • 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\2026-08-10_ce09ef7eb96965b3f7b3b5af41ab31e7_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-10_ce09ef7eb96965b3f7b3b5af41ab31e7_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4556
    • 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:2136

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 52KB
        • SHA256 a97fda6925529ed05f56277aae7ac6f7aef7c1f9613b21c341405e80e6fb74d1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2136-17-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/2136-19-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/2136-20-0x00000000026C0000-0x00000000026C6000-memory.dmp

        memory/4556-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/4556-1-0x0000000000740000-0x0000000000746000-memory.dmp

        memory/4556-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4556-3-0x0000000003140000-0x0000000003146000-memory.dmp