Overview

overview

10

Static

static

10

2026-07-28...ry.exe

windows10-2004-x64

10

2026-07-28...ry.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    2026-07-28_de11ed4b78219a0b7eecf7001ad56616_elex_wannacry
  • Size 61KB
  • Sample260728-1vd23sca76
  • SHA256 14a30d271393f6ba8ceece0ceb298a75c5bb52988fd0748bcac19f37833cf23b
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
cosmudiscoverypersistenceransomwareworm

Malware Config

Targets

    • Target
      2026-07-28_de11ed4b78219a0b7eecf7001ad56616_elex_wannacry
    • Size 61KB
    • SHA256 14a30d271393f6ba8ceece0ceb298a75c5bb52988fd0748bcac19f37833cf23b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    discoverycosmupersistenceransomwareworm

    • Detects Cosmu payload

      Cosmu is a worm written in C++.

    • Family: Cosmu

      Cosmu is a Windows worm written in C++.

      wormcosmu

    • Renames multiple (4913) files with added filename extension

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

      ransomware

    • Sets service image path in registry

      This determines the executable launched when a service starts. It can be used to establish persistence.

      persistence

    • Executes dropped EXE

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks