Extracted

• • Target

    1286f05c8e544ee2a3c1818a28f4f05d9b2c5d802fc413cd210fadeb537437aa

  • Size

    1.7MB

  • MD5

    5052bb8fdec5fed9db55c44c11cfc568

  • SHA1

    a5b781562d536aeb098113257641b704c2d18715

  • SHA256

    1286f05c8e544ee2a3c1818a28f4f05d9b2c5d802fc413cd210fadeb537437aa

  • SHA512

    1cef862fb24e26f37167fe385e47a5c22fc7f2a011315b9a019203ac94e651084d6cf059d0db7f0b1ef7a917cfdad8a3f56bf727a6c6178e0610c261b4a194fa

  Score

  10^/10

  buerevasionloaderpersistence

  • Buer

    Buer is a new modular loader first seen in August 2019.

    loaderbuer

  • Modifies WinLogon for persistence

    persistence

  • Buer Loader

    Detects Buer loader in memory or disk.

    loader

  • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    evasion

  • Executes dropped EXE

  • Checks BIOS information in registry

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

  • Identifies Wine through registry keys

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    evasion

  • Suspicious use of NtSetInformationThreadHideFromDebugger

  behavioral1behavioral2