Overview

overview

10

Static

static

10

2026-09-24...ry.exe

windows10-2004-x64

10

2026-09-24...ry.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    2026-09-24_1e788750ae7bc8fb45f5947e3b3a0a9a_cobalt-strike_elex_vidar_wannacry
  • Size 605KB
  • Sample260925-q58dkatvbw
  • SHA256 ba77e74e3e89367ffd2ce3c4d754c52b5f410a55a920970382148e4f0f452bcd
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
cosmudiscoveryransomwareworm

Malware Config

Targets

    • Target
      2026-09-24_1e788750ae7bc8fb45f5947e3b3a0a9a_cobalt-strike_elex_vidar_wannacry
    • Size 605KB
    • SHA256 ba77e74e3e89367ffd2ce3c4d754c52b5f410a55a920970382148e4f0f452bcd
    • 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

    • Detects executables packed with eXPressor

    • Renames multiple (5132) files with added filename extension

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

      ransomware

    • Executes dropped EXE

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks