Analysis

  • max time kernel
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    02/06/2026, 20:50

General

  • Target
    2026-06-02_59c51a078d64f86ea5b1ecf9e53a6a99_elex_upatre_wannacry.exe
  • Size 57KB
  • Sample260602-zmtbcsft2k
  • SHA256 044c595c257bcbc30aa96ea5feb704941d3b6becc53a4f9dd108f3e23e436de5
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detects executables built or packed with MPress PE compressor 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\2026-06-02_59c51a078d64f86ea5b1ecf9e53a6a99_elex_upatre_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-02_59c51a078d64f86ea5b1ecf9e53a6a99_elex_upatre_wannacry.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4144
    • 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:2504

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 57KB
        • SHA256 f4a49eca913339e54f090e552da2d1ba36d5aa196843d10bd1dcf36ff8b51153
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2504-13-0x0000000000400000-0x000000000040C000-memory.dmp

        memory/2504-14-0x0000000000400000-0x000000000040C000-memory.dmp

        memory/4144-0-0x0000000000400000-0x000000000040C000-memory.dmp

        memory/4144-12-0x0000000000400000-0x000000000040C000-memory.dmp