Overview

overview

10

Static

static

10

2026-08-30...ry.exe

windows10-2004-x64

10

2026-08-30...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
    31/08/2026, 00:32

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    2026-08-30_f7875c1824af463f99616a99f4c9c81b_elex_wannacry.exe
  • Size 680KB
  • Sample260831-av334asfla
  • SHA256 31aa29f2782272ecf5dbf12226d6203614b575e4928abf2d1d6b7952d7899052
  • 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++.

  • Detects executables packed with eXPressor 4 IoCs
  • Renames multiple (2165) 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\2026-08-30_f7875c1824af463f99616a99f4c9c81b_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-30_f7875c1824af463f99616a99f4c9c81b_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:996

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        desktop.ini.tmp
        • Path C:\$Recycle.Bin\S-1-5-21-552508041-2681165170-3229858294-1000\desktop.ini.tmp
        • Size 680KB
        • SHA256 106f673ca6c46a9c2cfa9a7bd6792d8e40b1c7162cbbb80a8b65c42f7eccbaa7
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        7-zip.dll.tmp
        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 779KB
        • SHA256 3e3bebd272bd3e794f0936303708b5d81e921501bfa0ec8481fc637da24696ad
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/996-0-0x0000000000400000-0x000000000040A000-memory.dmp
        Download

        memory/996-361-0x0000000000400000-0x000000000040A000-memory.dmp
        Download