Overview

overview

10

Static

static

10

2026-08-01...ry.exe

windows10-2004-x64

10

2026-08-01...ry.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/08/2026, 00:37

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General

  • Target
    2026-08-01_5fd282fcd6d0c01d508520f973cbecc5_elex_wannacry.exe
  • Size 97KB
  • Sample260802-ayrt8szzcx
  • SHA256 128507cbf11c1d0c448bc0dbee182dbc2275380abe059efd1e51070160506d84
  • 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 (4283) 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\2026-08-01_5fd282fcd6d0c01d508520f973cbecc5_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-01_5fd282fcd6d0c01d508520f973cbecc5_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4452

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 97KB
        • SHA256 1d18a388af5e430ec0b2c8ab71a2347d24df8b3903fb13eac35f4ce433d470e5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        7-zip.dll.tmp
        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 196KB
        • SHA256 6ea27e2bd2edd5e30188df03dc75d109ae103cba9b88b6ad659d98849cbf1bab
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download