General

  • Target
    Portmaster.exe
  • Size 226KB
  • Sample260525-sq511act7l
  • SHA256 0acec441bd5e924c678d740919a076238ea9674e0a40876fc99f7ba814a8c9fe
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • ps1.dropper

    http://evil.xyz/steal.ps1

Targets

    • Target
      Portmaster.exe
    • Size 226KB
    • SHA256 0acec441bd5e924c678d740919a076238ea9674e0a40876fc99f7ba814a8c9fe
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

    • Remote Service Session Hijacking: RDP Hijacking

      Adversaries may hijack a legitimate user's remote desktop session to move laterally within an environment.

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • Disables one or more Microsoft Defender components

      Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

    • Modifies Windows Firewall

    • Disables service(s)

    • Drops startup file

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Writes to the Master Boot Record (MBR)

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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks