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
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-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 (220) 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:1920

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        desktop.ini.tmp
        • Path C:\$Recycle.Bin\S-1-5-21-560646293-820748483-2532804640-1000\desktop.ini.tmp
        • Size 8.0MB
        • SHA256 8844977ab9e0b9d2a6d9fdd93e29b99a694b5f8e36a7eed5180f7ac96cc71851
        • 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 bf6f6214e4a28d4256e19a0756d4ad8d2b7eca78f4c9c47ef829358bad0d593e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/1920-0-0x0000000000400000-0x000000000040A000-memory.dmp
        Download

        memory/1920-74-0x0000000000400000-0x000000000040A000-memory.dmp
        Download