Extracted

• • Target

    3d8b7ed35de4a807e9c9b04aaf0f99eb1cd46a9de1970af140ac048d6e2f5367

  • Size

    1.8MB

  • MD5

    820f5bd213f5ff673013f29e6bdc114e

  • SHA1

    62adcd3c613a978648daa640febf4d403fbeffb4

  • SHA256

    3d8b7ed35de4a807e9c9b04aaf0f99eb1cd46a9de1970af140ac048d6e2f5367

  • SHA512

    98825fe6143b108928f3d849533c768495efd120d0cfb70292c9e6e3a553edca74fdb091948c30185a721d72fb994a6d092f0966d5cc18bbdc2d7aaf84754e1d

  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