Overview

overview

10

Static

static

10

2026-06-05...ry.exe

windows10-2004-x64

10

2026-06-05...ry.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    2026-06-05_4113fdce76a9dff6bd1bf96d8fd4a7c6_cobalt-strike_elex_vidar_wannacry
  • Size 82KB
  • Sample260605-2ds1caew2t
  • SHA256 18c79d4cc4e547c8a5dd6d40ce3ac631528bb8c88626f9be11d9105b5a632014
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
cosmudiscoveryransomwareworm

Malware Config

Targets

    • Target
      2026-06-05_4113fdce76a9dff6bd1bf96d8fd4a7c6_cobalt-strike_elex_vidar_wannacry
    • Size 82KB
    • SHA256 18c79d4cc4e547c8a5dd6d40ce3ac631528bb8c88626f9be11d9105b5a632014
    • 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 (5133) 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