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
    150s
  • max time network
    126s
  • 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, 01:11

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General

  • Target
    2026-08-04_26bca71554129a0ea3a707330a141184_elex_rhadamanthys_smoke-loader.exe
  • Size 1.4MB
  • Sample260805-bj5cfssxcx
  • SHA256 a502ce74dd7fb299c2d3916b0604789028eb2ecd2cf1b87c497fd1a289590f5e
  • 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\2026-08-04_26bca71554129a0ea3a707330a141184_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-04_26bca71554129a0ea3a707330a141184_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:3548

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 324KB
        • SHA256 677dff33a6d20f7f0c6250362f355f513e34845f4888c280624e67644a914bd4
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX20D0.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX20D0.tmp
        • Size 284KB
        • SHA256 2dbf6e65c4bad51d9ad819d2175420d75f90c6047e5163ba8df32465ce30dad4
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX2213.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCX2213.tmp
        • Size 284KB
        • SHA256 e0dc9f5499d3ec39ad7f3a3714573b047069c387fe2e214737e22b3afd429d33
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        appletviewer.exe
        • Path C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe
        • Size 284KB
        • SHA256 2165349d33c20fef6c3c4f5b39ff303ec9b9f4720b4249496472ab8a01082c34
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download