Overview

overview

10

Static

static

10

2026-11-01...er.exe

windows10-2004-x64

10

2026-11-01...er.exe

windows11-ltsc_2024-x64

10

Analysis

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

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/11/2026, 03:46

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General

  • Target
    2026-11-01_ef9f9c4a8cb7713d6ddc0c974cb9e4fa_elex_rhadamanthys_smoke-loader.exe
  • Size 1.4MB
  • Sample261102-ebs61ast8n
  • SHA256 dcf03a62ca1f7b7d5ae45b53a7c830fd1ba5a335915f1b73af990b68bd1086ea
  • 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\2026-11-01_ef9f9c4a8cb7713d6ddc0c974cb9e4fa_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-11-01_ef9f9c4a8cb7713d6ddc0c974cb9e4fa_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:2520

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 336KB
        • SHA256 6534565ce31abe7d549fb7a679d81fcf83faeecebacfbd0b7e0ca42e0b434b5b
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX4B9E.tmp
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX4B9E.tmp
        • Size 288KB
        • SHA256 6f188d3d5480410308c5cafe543e136a7cf4a5f75e5feae0895e20101c49d839
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX4B9F.tmp
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX4B9F.tmp
        • Size 288KB
        • SHA256 fc72344a3fb7096a6d204f2b320f4d046e9fc76e61826cda274ff267f95bfeb5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX4A60.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX4A60.tmp
        • Size 288KB
        • SHA256 db87c23ff3d5d33cd06758aaa6932f54524162c0c97c2ce165e2d3e05fa8f5f8
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 1.5MB
        • SHA256 515241ce5b353098529af3249c5d32c5beee16773fa19a6271be19671fd7a8f1
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download