Extracted

• • Target

    6d4500bced3441879c63efbdc73e4742e111f011627343b8f3f607101668ac5c

  • Size

    1.7MB

  • MD5

    32855c905d8fc616ee5feb354820ba97

  • SHA1

    92178e3e2294a39588571e165393b18e1867ab5b

  • SHA256

    6d4500bced3441879c63efbdc73e4742e111f011627343b8f3f607101668ac5c

  • SHA512

    eee2b54bf408286784f4b9c8be49035227238cc7a804a4c60edd42b480a6527b0a217fa354cbe588e059c8c3a1dde9f2afd5d3b0f6fbbea107d08d1a6e1c3ca9

  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.

  • Deletes itself

  • Identifies Wine through registry keys

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

    evasion

  • Loads dropped DLL

  • Suspicious use of NtSetInformationThreadHideFromDebugger

  behavioral1behavioral2