Overview

overview

10

Static

static

10

2026-04-20...ry.exe

windows10-2004-x64

10

2026-04-20...ry.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    2026-04-20_fe7d8d1191ae566ef7a613279d4ffcff_elex_wannacry
  • Size 2.7MB
  • Sample260420-ss3nnah12x
  • SHA256 3d442ab1a9bd3bf973928ac167f6eec8df3451063c699b509fa32dc069e33504
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
cosmudiscoveryransomwareworm

Malware Config

Targets

    • Target
      2026-04-20_fe7d8d1191ae566ef7a613279d4ffcff_elex_wannacry
    • Size 2.7MB
    • SHA256 3d442ab1a9bd3bf973928ac167f6eec8df3451063c699b509fa32dc069e33504
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    discoverycosmuransomwareworm

    • Detects Cosmu payload

      Cosmu is a worm written in C++.

    • Family: Cosmu

      Cosmu is a Windows worm written in C++.

      wormcosmu
    • Custom signature

      Detects executables packed with eXPressor

    • Renames multiple (1053) files with added filename extension

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

      ransomware
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks