Overview

overview

8

Static

static

3

HighHappy.exe

windows10-ltsc_2021-x64

8

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General

  • Target
    HighHappy.exe
  • Size 82KB
  • Sample261002-rbpvssbf46
  • SHA256 0f9617c86fd1a744a7185e1060b928cd05ddd63c70633dbe847d5582e60101fe
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
bootkitdefense_evasiondiscoveryexecutionpersistence

Malware Config

Targets

    • Target
      HighHappy.exe
    • Size 82KB
    • SHA256 0f9617c86fd1a744a7185e1060b928cd05ddd63c70633dbe847d5582e60101fe
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    8/10
    bootkitdefense_evasiondiscoveryexecutionpersistence

    • Disables Task Manager via registry modification

      defense_evasion

    • Checks computer location settings

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

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

      defense_evasion

    • 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 v16

Tasks