Overview

overview

10

Static

static

10

2026-08-13...ry.exe

windows10-2004-x64

10

2026-08-13...ry.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    13/08/2026, 13:02

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General

  • Target
    2026-08-13_629dc16dc3d73c557cafd7ac8c0003b0_elex_wannacry.exe
  • Size 24KB
  • Sample260813-p91nvabb39
  • SHA256 33a6d654657210f25b0eb9de60e812234a2bd4eb59c86eb35da9a5fdd62e7475
  • 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++.

  • Renames multiple (2325) 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\2026-08-13_629dc16dc3d73c557cafd7ac8c0003b0_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-13_629dc16dc3d73c557cafd7ac8c0003b0_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:2868

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        desktop.ini.tmp
        • Path C:\$Recycle.Bin\S-1-5-21-552508041-2681165170-3229858294-1000\desktop.ini.tmp
        • Size 25KB
        • SHA256 fdb2b83715c1413fa2c693f749cd051afc2d4ab87874bd0223253928c9d14ee0
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        7-zip.dll.tmp
        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 123KB
        • SHA256 2f9ef9a9c8bdfa528cef414922ce58603840d86514bc1a1a99f67e6fbde455a2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download