Analysis

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

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/08/2026, 04:07

General

  • Target
    2026-08-09_79d1bf4fa40c49b75d7ed991917741bc_cryptolocker_elex.exe
  • Size 46KB
  • Sample260809-eprkbszeja
  • SHA256 bcd1ec6702852630ac12b29f213f1f512903178a2dc8987e63cf6cb71241b8a6
  • 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\2026-08-09_79d1bf4fa40c49b75d7ed991917741bc_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-09_79d1bf4fa40c49b75d7ed991917741bc_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3912
    • 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:4712

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 47KB
        • SHA256 437d99943fd6b4d45885a534494f1c594e22507d15d0b9e48a9c5ea2ba0a3185
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3912-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/3912-1-0x0000000002100000-0x0000000002106000-memory.dmp

        memory/3912-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/3912-3-0x0000000003810000-0x0000000003816000-memory.dmp

        memory/4712-18-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4712-20-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4712-21-0x00000000037F0000-0x00000000037F6000-memory.dmp