Extracted

• • Target

    ca334df8e40d7a2977d979ce91cf79c225612b3bd5bada4920d3777cb08bd5db

  • Size

    2.0MB

  • MD5

    2f7f60ef423947bac5628fa46a7762ac

  • SHA1

    dd4d6463e1b4fad95790682604cde103d457d7c3

  • SHA256

    ca334df8e40d7a2977d979ce91cf79c225612b3bd5bada4920d3777cb08bd5db

  • SHA512

    8f867da39f77b30a6d405556389ec897aff4213dbf7ee16faff098c5956cdf810b6c83e59c94a25359b6e49ad4f6552724cf8a2b39383d2cd5fabf1abc032653

  Score

  10^/10

  buerevasionloaderpersistence

  • Buer

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

    loaderbuer

  • 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

  • Adds Run key to start application

    persistence

  • Suspicious use of NtSetInformationThreadHideFromDebugger

  behavioral1behavioral2