Overview

overview

10

Static

static

10

2026-08-04...er.exe

windows10-2004-x64

10

2026-08-04...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    141s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/08/2026, 00:05

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    2026-08-04_ef2cde83df6163049dc5add74f8e6374_elex_rhadamanthys_smoke-loader.exe
  • Size 292KB
  • Sample260805-adflgaaf53
  • SHA256 01d4833e42bd158a4946d03034185679c3b1cc5eaeced25727cf2d274a5e46bf
  • 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\2026-08-04_ef2cde83df6163049dc5add74f8e6374_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-04_ef2cde83df6163049dc5add74f8e6374_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:1004

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 329KB
        • SHA256 1d6326983b409900c71e6b855e5e4d2f2655086f83081ca0b04fe6fea1493eca
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrmstp.exe
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe
        • Size 1.5MB
        • SHA256 af2d4219cc340deddf84384893a715d8d3b775a9f8b4d2673180b4002df7fee8
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX6B18.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX6B18.tmp
        • Size 284KB
        • SHA256 2dbf6e65c4bad51d9ad819d2175420d75f90c6047e5163ba8df32465ce30dad4
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX6CC8.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCX6CC8.tmp
        • Size 284KB
        • SHA256 e0dc9f5499d3ec39ad7f3a3714573b047069c387fe2e214737e22b3afd429d33
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        helper.exe
        • Path C:\Program Files\Mozilla Firefox\uninstall\helper.exe
        • Size 353KB
        • SHA256 5e0d2033792295634a729692ff65ecf8cb626009048e5bb0daa4b2401d8d4dfa
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download