Extracted

• • Target
    Setup - Retail.exe
  • Size 733.1MB
  • SHA256 39c8373d34c290996bf857a573432f38cd22459cfdb99aff467eddfc7c4394b1
  • MD5 0bd583fce18b67698e82c3c2509980ab
  • SHA1 8e5a8536200ddbf0bdb10849d1b2ef385bc0f27f
  • SHA512 88b9acf595aee7c1dd73eb0f781c9e299a82393480843321571921224324a01153b1a23ba118601ad93f47cfbd06c043d418d669827586ab2801da68540f4cf5
  • SSDEEP 12582912:blaAT6QcC56SGTHTL/lb0SDcoDZF/I2n8ANo1+pEmxO44xOQRQ4wD3IQOdBS7rkT:ZHDcC5vYn/PcoDZP8kfj444FQLbpABUg
  • MD5 SHA1 SHA512 SSDEEP

  Score

  10^/10

  adwarequickbooksdefense_evasiondiscoveryexecutionquasarpersistenceprivilege_escalationransomwarespywaretrojan

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar

  • Quasar family

    quasar

  • Quasar payload

  • Modifies Windows Firewall

    defense_evasion

  • System Binary Proxy Execution: Regsvcs/Regasm

    Abuse Regasm to proxy execution of malicious code.

    defense_evasion

  • Checks computer location settings

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

  • 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.

    persistenceprivilege_escalation

  • Executes dropped EXE

  • Loads dropped DLL

  • Adds Run key to start application

    persistence

  • Checks installed software on the system

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

    discovery

  • Command and Scripting Interpreter: PowerShell

    Using powershell.exe command.

    execution

  • Enumerates connected drives

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

  • Looks up external IP address via web service

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory

  • Suspicious use of SetThreadContext

  behavioral1behavioral2