Extracted

• • Target

    144af4b3b008e90a5b4bdfb4f815d95d2fb6a4f01b380964d7f7e744fa9935a6

  • Size

    1.8MB

  • MD5

    cbac76c9c5eaac7aff3356d11473d5c8

  • SHA1

    b297106cab96d0a91b06137a5d4c3a3ba7d0bcd6

  • SHA256

    144af4b3b008e90a5b4bdfb4f815d95d2fb6a4f01b380964d7f7e744fa9935a6

  • SHA512

    fd114f7c3d7b1544c9f941c3864d6e91e7d6401c763f55b7d0b434e09458f8e14259ffe7b5a1d56b3375d3ab3fc2c066fb1d904bbc01fb8030790654e92a7871

  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