Overview

overview

10

Static

static

10

2026-07-06...er.exe

windows10-2004-x64

10

2026-07-06...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    122s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/07/2026, 01:21

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General

  • Target
    2026-07-06_b8b5a8da79c4fa6a566310747c0c27cb_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260707-bqt53afs21
  • SHA256 5b987c91a1983b80646949709f4102d6cb4904394f6d46271db15569d7fb6766
  • 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\2026-07-06_b8b5a8da79c4fa6a566310747c0c27cb_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-06_b8b5a8da79c4fa6a566310747c0c27cb_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:960

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 321KB
        • SHA256 72ccd8354d6dfdc1bcadec0246385f40e5074d0cdb343de2a358a78a4fec3fd5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        setup.exe
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe
        • Size 1.5MB
        • SHA256 1d7c786f3bd5f21e0c7bb4a780cb579cd505417f13d70e940655d8ddc1c33ef5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXD3D9.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCXD3D9.tmp
        • Size 284KB
        • SHA256 7b5860e6407f31f55071c3d014027e3c6a0bfc9282db2b81a17712b98058a712
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        appletviewer.exe
        • Path C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe
        • Size 284KB
        • SHA256 bcba0bd4aa457d2693e545e0f35aabad230bac35c93d9be1311d6f446a075ee8
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download