Overview

overview

10

Static

static

10

2026-08-20...ry.exe

windows10-2004-x64

10

2026-08-20...ry.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/08/2026, 23:07

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General

  • Target
    2026-08-20_ed7f034419ab6aa49eeff5e48856a1e1_coinminer_elex_wannacry.exe
  • Size 100KB
  • Sample260820-23129azzgz
  • SHA256 f0f06cd6a1b2d652264c1a528097eaa1b2b814d7ace124a128a09a080a0787f3
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
discoverycosmuransomwareupxworm

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++.

  • Renames multiple (4129) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • UPX dump on OEP (original entry point) 4 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Drops file in Program Files directory 64 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-20_ed7f034419ab6aa49eeff5e48856a1e1_coinminer_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-20_ed7f034419ab6aa49eeff5e48856a1e1_coinminer_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:3116

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        desktop.ini.tmp
        • Path C:\$Recycle.Bin\S-1-5-21-1738198120-2966725515-3980530802-1000\desktop.ini.tmp
        • Size 100KB
        • SHA256 3c0f13c2dc0702b651ee4d01797a295eaedbe7cb5821c7224a3e3757b6597c85
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        7-zip.dll.tmp
        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 199KB
        • SHA256 3d75d6b35d7d9294ed7459dfdcd813dcbc799681cb3099bd49a42799a00373f7
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/3116-0-0x0000000000400000-0x000000000040B000-memory.dmp
        Download

        memory/3116-531-0x0000000000400000-0x000000000040B000-memory.dmp
        Download