Extracted

• • Target

    filetest.bat

  • Size

    7.9MB

  • MD5

    f88d18fc65296a1ed460e40a352e3045

  • SHA1

    f6d9d94da2f11d0485ca057a057a06ac492bde8c

  • SHA256

    f3cbb5d82cd929211283435c7dd79e7c853449ad23e7d4895b9fc0427759ba7f

  • SHA512

    f193edd5c475040928e188b756d27ecb2f61ef6a1d7392bdb62e6d5bcdd5c37272849a298e9cc6265b5f67890881971ecf28f93e98edd90f6f536190999ed367

  • SSDEEP

    49152:h4ANZ4/rNl/dichvhGpPK7kMes5mmCq/BWZHtPrBe7XTADqoh6EKQJS2H/WkTb/2:6

  Score

  10^/10

  executionquasarbootkitdefense_evasionpersistencespywaretrojan

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar

  • Quasar family

    quasar

  • Quasar payload

  • 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.

  • Deletes itself

  • 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 SetThreadContext

  behavioral1behavioral2