Overview

overview

10

Static

static

10

2026-10-29...ry.exe

windows10-2004-x64

10

2026-10-29...ry.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    29/10/2026, 16:58

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General

  • Target
    2026-10-29_1680f96c35033ed804b49ba081cd35f3_elex_wannacry.exe
  • Size 8.0MB
  • Sample261029-vgxpda1vcv
  • SHA256 8198989ddaf398b06068832491508e489af75a877d4963643d25bba8c7c06b92
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
discoverycosmuransomwareworm

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

    wormcosmu
  • Detects Cosmu payload 2 IoCs

    Cosmu is a worm written in C++.

  • Detects executables packed with eXPressor 4 IoCs
  • Renames multiple (293) files with added filename extension

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

    ransomware
  • 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.

    discovery

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-10-29_1680f96c35033ed804b49ba081cd35f3_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-29_1680f96c35033ed804b49ba081cd35f3_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4876

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        desktop.ini.tmp
        • Path C:\$Recycle.Bin\S-1-5-21-2091445952-3649787497-104050984-1000\desktop.ini.tmp
        • Size 8.0MB
        • SHA256 34ddb053613aa5ffc59d975358c0f3747bfe007b977fe85610c419b72677267a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        7-zip.chm.tmp
        • Path C:\Program Files\7-Zip\7-zip.chm.tmp
        • Size 8.1MB
        • SHA256 9a97d32e7dd8b0c6c89afb891af6c885c68c885bd2b577a19d31e6aa08eb6e06
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/4876-0-0x0000000000400000-0x000000000040A000-memory.dmp
        Download

        memory/4876-111-0x0000000000400000-0x000000000040A000-memory.dmp
        Download