Overview

overview

6

Static

static

1

avast_free...ne.exe

windows11-21h2-x64

6

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General

  • Target
    avast_free_antivirus_setup_online.exe
  • Size 243KB
  • Sample241015-tbs9bsshqc
  • SHA256 b625fd9059386774f2952b00c679590b0b6c628e58da1fa6ed65b1a6d8026439
  • MD5 SHA1 SHA512 SSDEEP
Score
6/10
bootkitdiscoverypersistence

Malware Config

Targets

    • Target
      avast_free_antivirus_setup_online.exe
    • Size 243KB
    • SHA256 b625fd9059386774f2952b00c679590b0b6c628e58da1fa6ed65b1a6d8026439
    • MD5 SHA1 SHA512 SSDEEP
    Score
    6/10
    bootkitdiscoverypersistence

    • 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
    behavioral1

MITRE ATT&CK Enterprise v15

Tasks