General

  • Target
    Gmail-Creator.zip
  • Size 171.5MB
  • Sample260813-qwa2ps1dmc
  • SHA256 1559773211fce9294d4aca99d50f8537d30c3748d7ca15f859d1e8b74e373211
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Language
  • ps1

Source
URLs
  • exe.dropper

    https://dl.google.com/tag/s/dl/chrome/install/beta/googlechromebetastandaloneenterprise64.msi

Extracted

Language
  • ps1

Source
URLs
  • exe.dropper

    https://dl.google.com/tag/s/dl/chrome/install/googlechromestandaloneenterprise64.msi

Targets

    • Target
      Gmail-Creator.zip
    • Size 171.5MB
    • SHA256 1559773211fce9294d4aca99d50f8537d30c3748d7ca15f859d1e8b74e373211
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Clears Windows event logs

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Downloads MZ/PE file

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Indicator Removal: Clear Persistence

      Clear artifacts associated with previously established persistence like scheduletasks on a host.

MITRE ATT&CK Enterprise v16

Tasks