Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/08/2026, 04:42

General

  • Target
    2026-08-05_acf28453be7326cc211c527116c56d4e_cryptolocker_elex.exe
  • Size 52KB
  • Sample260805-fb3acaycld
  • SHA256 6eb6557dfa80cc3f38993d4d0ca2ae580faec831440c34fbd2b22fe4fa709c1d
  • 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\2026-08-05_acf28453be7326cc211c527116c56d4e_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-05_acf28453be7326cc211c527116c56d4e_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4144
    • 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:2076

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 7aee14a0e747088b7636523acbb7f1652e5a15b6f6099a73c4a13fdf7614b2f9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2076-18-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/2076-20-0x0000000002290000-0x0000000002296000-memory.dmp

        memory/2076-26-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4144-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/4144-1-0x00000000037E0000-0x00000000037E6000-memory.dmp

        memory/4144-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4144-3-0x0000000003810000-0x0000000003816000-memory.dmp