Overview

overview

10

Static

static

10

2026-07-29...er.exe

windows10-2004-x64

10

2026-07-29...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    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
    29/07/2026, 22:23

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General

  • Target
    2026-07-29_a627ee10dcc92c0b9dff9d6ca9b91311_elex_rhadamanthys_smoke-loader.exe
  • Size 288KB
  • Sample260729-2a63ssgr9x
  • SHA256 3462cbf48d4f1a4f3e5af623af902421ba98feb1067734c0d14e17c5bb885577
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwarediscoverycosmuransomwarespywareworm

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

    wormcosmu
  • Detects Cosmu payload 5 IoCs

    Cosmu is a worm written in C++.

  • Enumerates connected drives 3 TTPs 10 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 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
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-29_a627ee10dcc92c0b9dff9d6ca9b91311_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-29_a627ee10dcc92c0b9dff9d6ca9b91311_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    PID:4340

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 324KB
        • SHA256 1353620cfa684002c5d2ee356751fce06d51bfae881d3927c9ac82b7fddc75bc
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXE6A1.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCXE6A1.tmp
        • Size 288KB
        • SHA256 38b8e8c145184c87d1783971070ea2d657cb0ece63df7457352db1f77d41b690
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome_proxy.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome_proxy.exe
        • Size 324KB
        • SHA256 6ee9ba18f3ec7f5c87a93082a8e8ad407994da6418b76d32e6767b5eece22e0f
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXE7E3.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCXE7E3.tmp
        • Size 288KB
        • SHA256 2f41fecb4650c75d86738d81fbef1609e7ca3ee554464d2417750bab72b4d60f
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        helper.exe
        • Path C:\Program Files\Mozilla Firefox\uninstall\helper.exe
        • Size 324KB
        • SHA256 75ba0bda89817b93618dacd98f8c8c61013dd6c6004e5ead4dee8faf8288b6f5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download