Overview

overview

10

Static

static

10

2026-08-12...er.exe

windows10-2004-x64

10

2026-08-12...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    132s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    12/08/2026, 22:13

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General

  • Target
    2026-08-12_90ecf85fd7705d10f3374064e893740c_elex_rhadamanthys_smoke-loader.exe
  • Size 1.5MB
  • Sample260812-143f2atxcv
  • SHA256 1063f6bd7f654dfd2a592973912c7e75b29cdfa48a7ec7fa48be65bda8370c48
  • 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 3 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\2026-08-12_90ecf85fd7705d10f3374064e893740c_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-12_90ecf85fd7705d10f3374064e893740c_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:3556

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 336KB
        • SHA256 2f5ce17f284f2c40380416952e01ac2ce62d4bc9ec1aa3b5e06c784991bc31bf
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX4177.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX4177.tmp
        • Size 284KB
        • SHA256 c394cba855e9b17bed43f6cf32b8d36c3341cbea527f3f428c9395469bce31fc
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX42CA.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCX42CA.tmp
        • Size 284KB
        • SHA256 74a5780b6dec6bacf290a5c07b15f417b3a62206ed44cbab8f33298013a256ba
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download