Overview

overview

10

Static

static

10

2026-06-28...er.exe

windows10-2004-x64

10

2026-06-28...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    28/06/2026, 23:15

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General

  • Target
    2026-06-28_3b405bf150b23f3a6a67d49f25c019d8_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260628-28tkcsgs5s
  • SHA256 3ea84e062168fa99ac8ff41af01d42eca5bcf9cebaed99ae0ef9d2dc1326f7d4
  • 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 7 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\2026-06-28_3b405bf150b23f3a6a67d49f25c019d8_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-28_3b405bf150b23f3a6a67d49f25c019d8_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:2712

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 333KB
        • SHA256 798c22ac22f7ecc243b24beb1b7e344cdcd2dfaca800fd71976488bdd69f1581
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome_pwa_launcher.exe
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.exe
        • Size 1.5MB
        • SHA256 e047ad7e858790147f9953069785d0e7e5e6454df9d110fc08c6567469cda038
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX98E3.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX98E3.tmp
        • Size 284KB
        • SHA256 298d420af7febe888a83c09da2a1f16f12809c212e2868ace892dc286f53710e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 308KB
        • SHA256 8fa85b8babe20de23a106f18a8c1a7e910e9cd01eb9a139cd81cf4380d7db5c2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX9A26.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCX9A26.tmp
        • Size 284KB
        • SHA256 8f01684339c61e8408fed9d83691a36b37b7733114b731b34f9753138c256af2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        appletviewer.exe
        • Path C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe
        • Size 284KB
        • SHA256 1fe7d1928508ec583832a0f830b820c2a559c1eef2d6ce32a99b494f2a4536e6
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        helper.exe
        • Path C:\Program Files\Mozilla Firefox\uninstall\helper.exe
        • Size 333KB
        • SHA256 2574ec822fbfb4b423b606d6ac294f8ef4f765d3e0f3a9075503d0999e0c3d21
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download