Overview

overview

10

Static

static

10

2026-07-27...ry.exe

windows10-2004-x64

10

2026-07-27...ry.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    126s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/07/2026, 17:31

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General

  • Target
    2026-07-27_5f6ba7c723dc86c5b7ba9d3f71138958_elex_wannacry.exe
  • Size 11.5MB
  • Sample260727-v35bcaxfpb
  • SHA256 29bcd1ff19055c68870fe7cc4e715f62a73c994ea35cf5200f99273e9290ffea
  • 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\2026-07-27_5f6ba7c723dc86c5b7ba9d3f71138958_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-27_5f6ba7c723dc86c5b7ba9d3f71138958_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:6000

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        desktop.ini.tmp
        • Path C:\$Recycle.Bin\S-1-5-21-1738198120-2966725515-3980530802-1000\desktop.ini.tmp
        • Size 11.5MB
        • SHA256 0b3cd211015d40bc8cbd489ad0e8e2910e4fc647d67c89eb93dae139903b17c2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        7-zip.dll.tmp
        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 11.6MB
        • SHA256 d004a5e3b689eaadaec5c5eb4e758ed255c101ebba655e084570c37f7f419cfc
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/6000-0-0x0000000000400000-0x000000000040A000-memory.dmp
        Download

        memory/6000-35-0x0000000000400000-0x000000000040A000-memory.dmp
        Download