Overview

overview

10

Static

static

10

2026-11-07...ry.exe

windows10-2004-x64

10

2026-11-07...ry.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    128s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/11/2026, 17:06

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General

  • Target
    2026-11-07_0e713cf33615c2db1f796c8972d8ae5b_cobalt-strike_elex_wannacry.exe
  • Size 5.7MB
  • Sample261107-vmdhpay18q
  • SHA256 f5ca5755704476b4250807c41800ac2881b6fc229d922189e62f0001e187c8d3
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
discoverycosmuransomwareworm

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

    wormcosmu
  • Detects Cosmu payload 2 IoCs

    Cosmu is a worm written in C++.

  • Renames multiple (296) files with added filename extension

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

    ransomware
  • 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\2026-11-07_0e713cf33615c2db1f796c8972d8ae5b_cobalt-strike_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-11-07_0e713cf33615c2db1f796c8972d8ae5b_cobalt-strike_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:5684

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        desktop.ini.tmp
        • Path C:\$Recycle.Bin\S-1-5-21-1262770251-41185387-1005173349-1000\desktop.ini.tmp
        • Size 5.7MB
        • SHA256 09ed0622d5d1f6b5702f235f91a2f36d12335dc074efb295562169b2396a1ff2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        7-zip.chm.tmp
        • Path C:\Program Files\7-Zip\7-zip.chm.tmp
        • Size 5.8MB
        • SHA256 dbed45ab4110c1e80824d801a76dc97535c9f288d79d4d0242eca6034b1252e9
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download