Overview

overview

10

Static

static

3

SovietVirus.exe

windows10-2004-x64

SovietVirus.exe

windows10-ltsc_2021-x64

Sharing

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General

  • Target
    SovietVirus.com
  • Size 797KB
  • Sample260605-be537aa13k
  • SHA256 d19070c8c3f9cfb4e791fab8be3baf7f000927989b9740591d184511ea04c23e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
donutloaderbootkitdefense_evasionexecutionloaderpersistence

Malware Config

Targets

    • Target
      SovietVirus.com
    • Size 797KB
    • SHA256 d19070c8c3f9cfb4e791fab8be3baf7f000927989b9740591d184511ea04c23e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    bootkitdefense_evasionexecutiondonutloaderloaderpersistence

    • Detects DonutLoader

      loader

    • Family: DonutLoader

      DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

      loaderdonutloader

    • Modifies visibility of hidden/system files in Explorer

      defense_evasion

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • 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