Analysis

  • max time kernel
    150s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    14/10/2026, 15:00

General

  • Target
    2026-10-14_a92183cc3abed2734070b355ce67bb98_elex_wannacry.exe
  • Size 592KB
  • Sample261014-sdmc5aew8x
  • SHA256 75e142f2664cedfc9cfaac5e6d89d5df26142a471f1cfee5eeafe7bd7af6bbb8
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • Detects Cosmu payload 4 IoCs

    Cosmu is a worm written in C++.

  • Detects executables packed with eXPressor 4 IoCs
  • Renames multiple (3009) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Drops file in Program Files directory 64 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-10-14_a92183cc3abed2734070b355ce67bb98_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-14_a92183cc3abed2734070b355ce67bb98_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:696

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        desktop.ini.tmp

        • Path C:\$Recycle.Bin\S-1-5-21-2091445952-3649787497-104050984-1000\desktop.ini.tmp
        • Size 592KB
        • SHA256 924fef854ad76d4bab53c26482df127933f0c791dee3a0c5b42ad9e706cee330
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7-zip.chm.tmp

        • Path C:\Program Files\7-Zip\7-zip.chm.tmp
        • Size 709KB
        • SHA256 98334c4d233e4bbca48f96943e8c875e439fc162746c4b9cce5036d8b0bab0de
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/696-0-0x0000000000400000-0x000000000040A000-memory.dmp

        memory/696-620-0x0000000000400000-0x000000000040A000-memory.dmp