Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/08/2026, 11:41

General

  • Target
    2026-08-20_a4028e493d3a58934eadeac493eb9603_cryptolocker_elex.exe
  • Size 36KB
  • Sample260820-ntv8rawcng
  • SHA256 997de6f62efceee7dcd108ccac2676e88b00c409bb676e650d354133106120a4
  • 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\2026-08-20_a4028e493d3a58934eadeac493eb9603_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-20_a4028e493d3a58934eadeac493eb9603_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4644
    • 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:940

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        hasfj.exe

        • Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
        • Size 36KB
        • SHA256 429ebd66e69df116012e5c510444631d904a846a3af3541ed5179a5f4e5ccbb2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/940-18-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/940-26-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/940-20-0x0000000003810000-0x0000000003816000-memory.dmp

        memory/4644-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/4644-1-0x0000000002290000-0x0000000002296000-memory.dmp

        memory/4644-2-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/4644-3-0x00000000022C0000-0x00000000022C6000-memory.dmp