Overview

overview

8

Static

static

3

MBR2.exe

windows10-2004-x64

MBR2.exe

windows11-ltsc_2024-x64

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General

  • Target
    MBR2.exe
  • Size 205KB
  • Sample260703-zy2rwacv3n
  • SHA256 c22e2419f04fe03a92255a139ca8814697962e86d191a1d4171788fd0c903f68
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
bootkitdefense_evasiondiscoverypersistence

Malware Config

Targets

    • Target
      MBR2.exe
    • Size 205KB
    • SHA256 c22e2419f04fe03a92255a139ca8814697962e86d191a1d4171788fd0c903f68
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    8/10
    bootkitdefense_evasiondiscoverypersistence

    • Disables Task Manager via registry modification

      defense_evasion

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Writes to the Master Boot Record (MBR)

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

      bootkitpersistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks