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

Sharing

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General

  • Target
    2026-11-07_2dd4a9e0f769ebb0e8420716a829a5ba_amadey_cobalt-strike_elex_vidar_wannacry
  • Size 4.1MB
  • Sample261107-s8dpgazsgw
  • SHA256 36fa45af8e28c97fd870d78c256960f9861ddf88aad2f0d355e703dc2813545c
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
fesberdiscoverypersistenceupxworm

Malware Config

Targets

    • Target
      2026-11-07_2dd4a9e0f769ebb0e8420716a829a5ba_amadey_cobalt-strike_elex_vidar_wannacry
    • Size 4.1MB
    • SHA256 36fa45af8e28c97fd870d78c256960f9861ddf88aad2f0d355e703dc2813545c
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    discoveryfesberpersistenceupxworm

    • Detects Fesber payload

    • Family: Fesber

      Fesber is a Windows worm written in Delphi.

      wormfesber

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • Drops file in System32 directory

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks