Overview

overview

6

Static

static

1

avast_free...ne.exe

windows10-2004-x64

6

avast_free...ne.exe

windows11-ltsc_2024-x64

6

Sharing

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General

  • Target
    avast_free_antivirus_setup_online.zip
  • Size 136KB
  • Sample261110-xt5a4aab64
  • SHA256 de9f4f683b4af510f241070e3e352070f606d4566f5da095a9ff2578594e2660
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10
bootkitdefense_evasiondiscoverypersistence

Malware Config

Targets

    • Target
      avast_free_antivirus_setup_online.exe
    • Size 245KB
    • SHA256 6be180ea9a978907b1f39e54a6360404a094d59c21e4ebb1fcb456aef0ff4859
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    6/10
    bootkitdefense_evasiondiscoverypersistence

    • Checks for any installed AV software in registry

    • Downloads MZ/PE file

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks