Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    09/05/2026, 08:25

General

  • Target
    2026-05-09_3f68b4eda5bb16378382f1cebcfcebff_cryptolocker_elex.exe
  • Size 69KB
  • Sample260509-kbqc1adv21
  • SHA256 e03905e8195e076af835209de1b712b48f2381fac6e8f4b0467f371af87f0542
  • 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\2026-05-09_3f68b4eda5bb16378382f1cebcfcebff_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-09_3f68b4eda5bb16378382f1cebcfcebff_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4204
    • 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:4000

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 69KB
        • SHA256 a98c6e7c589b5e5ff14e47902bd6535682babb7d4fca1a8c96ab77ade03ca80f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4000-17-0x0000000008000000-0x000000000800E000-memory.dmp

        memory/4000-20-0x0000000002230000-0x0000000002236000-memory.dmp

        memory/4000-19-0x0000000008000000-0x000000000800E000-memory.dmp

        memory/4204-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/4204-1-0x0000000002640000-0x0000000002646000-memory.dmp

        memory/4204-2-0x0000000008000000-0x000000000800E000-memory.dmp

        memory/4204-3-0x0000000002E70000-0x0000000002E76000-memory.dmp