Extracted

• • Target

    Updater.bat

  • Size

    7.4MB

  • MD5

    817e65c6426d73b7f6fb6e86af91a870

  • SHA1

    930959dd7f5458df58d4861dd284aed7ef1c1656

  • SHA256

    94be9a2558718c11cb45dfcce1fdd1b55481a2059c7b88f81b28b596d51c46af

  • SHA512

    bde32dc00e89aae044b369827e01594f6eacf7f769cdadb8ef8bf0a5a84be03d576496cb644bfbb162e1a005c06e131819f9d065346f39d0d9f8f2ddfeb1f852

  • SSDEEP

    49152:z7XktsXaNQeRrnttyKsPDAxE42w/RLY1Z+GUaodePdybSGwMqErW2pGkHGymBslY:1

  Score

  10^/10

  executionquasarbootkitdefense_evasionpersistencespywaretrojan

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar

  • Quasar family

    quasar

  • Quasar payload

  • Suspicious use of NtCreateProcessExOtherParentProcess

  • Suspicious use of NtCreateUserProcessOtherParentProcess

  • Blocklisted process makes network request

  • Command and Scripting Interpreter: PowerShell

    Run Powershell and hide display window.

    execution

  • Sets service image path in registry

    persistence

  • Checks BIOS information in registry

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE

  • Indicator Removal: Clear Windows Event Logs

    Clear Windows Event Logs to hide the activity of an intrusion.

    defense_evasion

  • Enumerates connected drives

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

  • Writes to the Master Boot Record (MBR)

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

    bootkitpersistence

  • Drops file in System32 directory

  • Suspicious use of NtSetInformationThreadHideFromDebugger

  • Suspicious use of SetThreadContext

  behavioral1behavioral2