Overview

overview

10

Static

static

10

2026-10-21...er.exe

windows10-2004-x64

10

2026-10-21...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    137s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/10/2026, 23:07

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General

  • Target
    2026-10-21_686284284b49213f13ce5937ae73ed77_elex_rhadamanthys_smoke-loader.exe
  • Size 1.5MB
  • Sample261022-24cfaags2z
  • SHA256 175d9587890e1a2789ae54012bc957d95362746ac04a9f127fc8ef983550c16a
  • 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\2026-10-21_686284284b49213f13ce5937ae73ed77_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-21_686284284b49213f13ce5937ae73ed77_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:4624

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 325KB
        • SHA256 737b3e5406ffffd0b07870e64fdcb85d3f071f119a33e4371224917a63002d51
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX447A.tmp
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX447A.tmp
        • Size 284KB
        • SHA256 ebee8e1f66898aee8e3f2107fc097f0c8e5e6006f964dcce22c08cd4041bf855
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX447B.tmp
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX447B.tmp
        • Size 284KB
        • SHA256 be8d4496fc112df855371082f84e5552ddf6f41058725522bd9bc7b454865af3
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX4270.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX4270.tmp
        • Size 284KB
        • SHA256 b8e3d6ce093b9d4ea9ef2708de3be456b2800d9274e15c89186fc491a40e001a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download