Overview

overview

10

Static

static

10

2026-08-02...d_.exe

windows10-2004-x64

10

2026-08-02...d_.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    2026-08-02_59f9dfffd96bf95057db32e8d9474d2a_amadey_cobalt-strike_elex_glassworm_hijackloader_icedid_luca-stealer_njrat_remcos_smoke-loader_stop_vidar
  • Size 11.6MB
  • Sample260802-w5kv6aeb24
  • SHA256 25b982cc7ce0fb045b9d944e3c447abbc15596d771b414f9e6eb272b3b935816
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
fesberdiscoverypersistencepyinstallerupxworm

Malware Config

Targets

    • Target
      2026-08-02_59f9dfffd96bf95057db32e8d9474d2a_amadey_cobalt-strike_elex_glassworm_hijackloader_icedid_luca-stealer_njrat_remcos_smoke-loader_stop_vidar
    • Size 11.6MB
    • SHA256 25b982cc7ce0fb045b9d944e3c447abbc15596d771b414f9e6eb272b3b935816
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    discoveryfesberpersistencepyinstallerupxworm

    • Detects Fesber payload

    • Family: Fesber

      Fesber is a Windows worm written in Delphi.

      wormfesber

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • Loads dropped DLL

    • 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