Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    31/05/2026, 08:31

General

  • Target
    2026-05-31_3d386b1e9f52a11926004a9a18443d1b_cryptolocker_elex.exe
  • Size 38KB
  • Sample260531-keregae13p
  • SHA256 b9416cf1e5a19223a2aa7fa0b7c477fd604d66f29fac8ddb52686e68148d29ea
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 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\2026-05-31_3d386b1e9f52a11926004a9a18443d1b_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-31_3d386b1e9f52a11926004a9a18443d1b_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2528
    • 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:4784

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        hasfj.exe

        • Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
        • Size 38KB
        • SHA256 31948fa2de54f880c4859cd63dc9a2085d010841aa2745eb507fdeaa6fcec8d4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2528-0-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/2528-1-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/2528-2-0x0000000002310000-0x0000000002316000-memory.dmp

        memory/2528-3-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/2528-4-0x0000000003110000-0x0000000003116000-memory.dmp

        memory/4784-18-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4784-26-0x0000000008000000-0x000000000800A000-memory.dmp