Overview

overview

10

Static

static

10

2026-07-28...er.exe

windows10-2004-x64

10

2026-07-28...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    115s
  • 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, 01:04

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General

  • Target
    2026-07-28_6659a6a78fd72cb15ecafc541961bf13_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260729-bfacxa1dkc
  • SHA256 de31adb36b1b318a512037a85616d652e21f401fa1f6d1f23def8c1f7d95885f
  • 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 4 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\2026-07-28_6659a6a78fd72cb15ecafc541961bf13_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-28_6659a6a78fd72cb15ecafc541961bf13_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:2836

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 331KB
        • SHA256 f19c5ebbaf8fb29db11561283ce3a469726deed6c128035cf3655ecf389e1fdb
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX1FE6.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX1FE6.tmp
        • Size 284KB
        • SHA256 fef8a661ff51790ac914f4cc0e80a0e5a7a46f9f6f2b19d374f0c6ebecbb3845
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX2271.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCX2271.tmp
        • Size 284KB
        • SHA256 b21af8b8fa5e2a24dfcc00eafac63df79708e72fef127327231dc00a43bc2060
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        jabswitch.exe
        • Path C:\Program Files\Java\jre-1.8\bin\jabswitch.exe
        • Size 284KB
        • SHA256 d7fb16e66a7c209b311e79223168c733b88110a5677726721a08696c571fcd0f
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download