Overview

overview

10

Static

static

10

2026-11-04...ry.exe

windows10-2004-x64

10

2026-11-04...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
    05/11/2026, 22:41

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General

  • Target
    2026-11-04_8083a8b6f33c0023f52881b2b3656e82_elex_wannacry.exe
  • Size 40KB
  • Sample261105-2mlmmaes8v
  • SHA256 428740f666fed9c097c62cd18775c8b97a271cb29f9e0790e346ab0ca7a9c3bd
  • 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 4 IoCs

    Cosmu is a worm written in C++.

  • Custom signature
    Detects executables packed with eXPressor 4 IoCs
  • Renames multiple (4161) 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\2026-11-04_8083a8b6f33c0023f52881b2b3656e82_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-11-04_8083a8b6f33c0023f52881b2b3656e82_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:5004

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        desktop.ini.tmp
        • Path C:\$Recycle.Bin\S-1-5-21-53044966-3830981193-2402648431-1000\desktop.ini.tmp
        • Size 41KB
        • SHA256 129815f70fc2424d324a34fed797a35f920c73c0eb3e2be9b53e4abad43370c4
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        7-zip.chm.tmp
        • Path C:\Program Files\7-Zip\7-zip.chm.tmp
        • Size 158KB
        • SHA256 6f2a3c853ec9be7cc6a35d5696838bf27d815c627eeff201527204051fab7799
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/5004-0-0x0000000000400000-0x000000000040A000-memory.dmp
        Download

        memory/5004-620-0x0000000000400000-0x000000000040A000-memory.dmp
        Download