Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/09/2026, 02:52

General

  • Target
    2026-09-08_c58b3d9e9b824723326f232953195d3b_elex_upatre_wannacry.exe
  • Size 53KB
  • Sample260910-dc5qraxsd1
  • SHA256 fc1da5b190900f29c4c04de9150b258f9824d93ce583cd4e5767eb5d0aa2f904
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 4 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\2026-09-08_c58b3d9e9b824723326f232953195d3b_elex_upatre_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-08_c58b3d9e9b824723326f232953195d3b_elex_upatre_wannacry.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5356
    • C:\Users\Admin\AppData\Local\Temp\fmujp.exe
      "C:\Users\Admin\AppData\Local\Temp\fmujp.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4356

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        fmujp.exe

        • Path C:\Users\Admin\AppData\Local\Temp\fmujp.exe
        • Size 53KB
        • SHA256 4e66c75c6bdeee32f1ef3e46cf00528813e28e7b317360129d34e68fc15c9d3b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4356-11-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/5356-0-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/5356-10-0x0000000000400000-0x000000000040F000-memory.dmp