Overview

overview

10

Static

static

10

2026-10-03...ry.exe

windows10-2004-x64

10

2026-10-03...ry.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    2026-10-03_7689e6c877c2b8bc5a03a85b8f6745c2_amadey_cobalt-strike_coinminer_elex_glassworm_hijackloader_stealc_vidar_wannacry
  • Size 6.4MB
  • Sample261004-lbr29svbrc
  • SHA256 3e4a27b8185331dc8a9b877b3ccc075c5efe05af388914d23dd32a484ac68c5e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
fesberdiscoverypersistenceupxworm

Malware Config

Targets

    • Target
      2026-10-03_7689e6c877c2b8bc5a03a85b8f6745c2_amadey_cobalt-strike_coinminer_elex_glassworm_hijackloader_stealc_vidar_wannacry
    • Size 6.4MB
    • SHA256 3e4a27b8185331dc8a9b877b3ccc075c5efe05af388914d23dd32a484ac68c5e
    • 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

    • Detects executables containing URLs to raw contents of a Github gist

    • Detects executables embedding registry key / value combination indicative of disabling Windows Defen

    • 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