Overview

overview

10

Static

static

10

2026-10-17...er.exe

windows10-2004-x64

10

2026-10-17...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    124s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    18/10/2026, 02:47

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General

  • Target
    2026-10-17_e8252a170a3cc97a8e1e4c187837e64a_elex_rhadamanthys_smoke-loader.exe
  • Size 333KB
  • Sample261018-c91bvsgw91
  • SHA256 c924ddb745fa0adb380a4b79139b367fc4247f1a6a64a6ef622f72c637a7c123
  • 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\2026-10-17_e8252a170a3cc97a8e1e4c187837e64a_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-17_e8252a170a3cc97a8e1e4c187837e64a_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:2868

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 337KB
        • SHA256 14edf1b1c80a95b8d8abdd721bb44297517ab7ea0e005c08933f75083941bef0
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXFB9A.tmp
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCXFB9A.tmp
        • Size 288KB
        • SHA256 7bf566c241922276200bce39fb550ccecfc4b5c08a3f272067496d9985a76878
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXFBAB.tmp
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCXFBAB.tmp
        • Size 288KB
        • SHA256 d3cd0b17b39b5c35e2fb0f5e0c6afd477f4afe0e93999fda8aa1e62168bdf3fa
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXFAB9.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCXFAB9.tmp
        • Size 288KB
        • SHA256 54261b59b671350d3a00f270d60593b20e54c8b3d7f906bbcc3f49e9ea9a0b14
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download