Overview

overview

10

Static

static

10

2026-08-07...er.exe

windows10-2004-x64

10

2026-08-07...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/08/2026, 01:01

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General

  • Target
    2026-08-07_86bdc6e1b79dee6035bd18bcfe1fa56d_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260808-bde6dawhra
  • SHA256 7e79a8b77566569b213de40128bf2e8eba72bdb554543bfb0ca911f97654c988
  • 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 6 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\2026-08-07_86bdc6e1b79dee6035bd18bcfe1fa56d_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-07_86bdc6e1b79dee6035bd18bcfe1fa56d_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:4788

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 334KB
        • SHA256 91580980d5b47c39ee112ceb3e26ece0b672dbda4c4e4bfcf59868c8cec183f4
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX4AE3.tmp
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX4AE3.tmp
        • Size 284KB
        • SHA256 49af4252b3a44fdb0ff12cd3cdf50c8bfeda8c1f4d387e1e240b7adf35facbe8
        • 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 3efdde41bb71c2f537c4c5be3194c7fe99f8953253c252d9ee9da94a85707ffc
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX49D4.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX49D4.tmp
        • Size 336KB
        • SHA256 08566621eb3b7d85cf450bff63cc3f4db64094399a45e6dac22f0e90b8dae1bc
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 336KB
        • SHA256 c7c2c8ee21649a60a4bc3420b3ee3db097a8de5956fdc7c210206e2f24438dd2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        jabswitch.exe
        • Path C:\Program Files\Java\jre-1.8\bin\jabswitch.exe
        • Size 284KB
        • SHA256 d23b21381c0b83a830e44924b0f0adcb8a62ae391586f03023a275790e5bc4f1
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download