Overview

overview

10

Static

static

1

422c8805c0...79.exe

windows7_x64

10

422c8805c0...79.exe

windows10-2004_x64

10

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General

  • Target

    422c8805c090ca0e7bf7b53ee5c0a2d66c2e1d38ab54797d7c46ce72cf0d5579

  • Size

    395KB

  • Sample

    220415-gebr8sgcen

  • MD5

    21ca840d524b862b43421ce8119ca7a8

  • SHA1

    da7271cd8618d4edb72fa704c82e8b7e53c2e9a8

  • SHA256

    422c8805c090ca0e7bf7b53ee5c0a2d66c2e1d38ab54797d7c46ce72cf0d5579

  • SHA512

    4fcb8916e825193eb38983357dfd7f2b8c979d918257dc4dfc7e7a8f5330274eb4ef747766650affd564b65b3e39c8e876c43ec6a542cfbf47452cb490ccb9ac

Score
10/10
buerloaderpersistence

Malware Config

Targets

    • Target

      422c8805c090ca0e7bf7b53ee5c0a2d66c2e1d38ab54797d7c46ce72cf0d5579

    • Size

      395KB

    • MD5

      21ca840d524b862b43421ce8119ca7a8

    • SHA1

      da7271cd8618d4edb72fa704c82e8b7e53c2e9a8

    • SHA256

      422c8805c090ca0e7bf7b53ee5c0a2d66c2e1d38ab54797d7c46ce72cf0d5579

    • SHA512

      4fcb8916e825193eb38983357dfd7f2b8c979d918257dc4dfc7e7a8f5330274eb4ef747766650affd564b65b3e39c8e876c43ec6a542cfbf47452cb490ccb9ac

    Score
    10/10
    buerloaderpersistence

    • Buer

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

      loaderbuer

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • Deletes itself

    • Loads dropped DLL

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks