Analysis

  • max time kernel
    149s
  • max time network
    124s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/10/2026, 23:27

General

  • Target
    2026-10-21_65f55269058a58649c7d3d0f8bd7f9a4_elex_upatre_wannacry.exe
  • Size 53KB
  • Sample261022-3fe2yabg52
  • SHA256 74b83a7dd1a3ec6a5ffa105cacb96a7623c310b904ec97453514a24cecd12e90
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detects executables built or packed with MPress PE compressor 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\2026-10-21_65f55269058a58649c7d3d0f8bd7f9a4_elex_upatre_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-21_65f55269058a58649c7d3d0f8bd7f9a4_elex_upatre_wannacry.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Users\Admin\AppData\Local\Temp\btkba.exe
      "C:\Users\Admin\AppData\Local\Temp\btkba.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3236

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        btkba.exe

        • Path C:\Users\Admin\AppData\Local\Temp\btkba.exe
        • Size 53KB
        • SHA256 9bebc02cc9b9cb9c67d7b57fdb5b6c5eadbe2f0bdb567980b0ebf4afd45c3ed9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2004-0-0x0000000000400000-0x000000000040C000-memory.dmp

        memory/2004-10-0x0000000000400000-0x000000000040C000-memory.dmp

        memory/3236-11-0x0000000000400000-0x000000000040C000-memory.dmp