Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    27/08/2026, 03:35

General

  • Target
    2026-08-26_ef20375e7d4ddf837435187c759ebde3_elex_wannacry.exe
  • Size 45KB
  • Sample260827-d5s8esdk6v
  • SHA256 39df9cf03ea33d73d2e2d189a4a07b1baf510542695df6e3f66c70c48f286b22
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Custom signature
    Detects executables built or packed with MPress PE compressor 5 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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\2026-08-26_ef20375e7d4ddf837435187c759ebde3_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-26_ef20375e7d4ddf837435187c759ebde3_elex_wannacry.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2316
    • C:\Users\Admin\AppData\Local\Temp\update_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\update_pdf.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2500

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        update_pdf.exe

        • Path C:\Users\Admin\AppData\Local\Temp\update_pdf.exe
        • Size 45KB
        • SHA256 ae305093512c28e58a8f370847e4c823971d5226c490f75733c04c9f1a82151a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2316-0-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/2316-10-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/2500-9-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/2500-12-0x0000000000400000-0x000000000040B000-memory.dmp