Extracted

• • Target

    d1d93897a3378eb32b943ef3010f9af53246cb90e125668d080a28ec676b332f

  • Size

    2.0MB

  • MD5

    e841f039dd3583e617ffe376df63b87c

  • SHA1

    d8d998f26b3b73a0631824d1336a25f6f14b7e84

  • SHA256

    d1d93897a3378eb32b943ef3010f9af53246cb90e125668d080a28ec676b332f

  • SHA512

    7b9e80d8d0c614476f81a1cdfa4a341e39e25dc75708a6c18c695e27afe965eb931055e9cd66d730d53e5a9d0665c5d0f2ed0e438f6c1b03190608a6de2f6380

  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