General

  • Target

    2e12043576f00278e8e1207709477d00c5e750fe42ebbae261302df924fb92fa

  • Size

    1.6MB

  • Sample

    220524-cn1eqscac8

  • MD5

    f0120868b013fa572bad5ceb3d50798d

  • SHA1

    8ccd636f9852a713e9c0aff7f2cfba667ad95247

  • SHA256

    2e12043576f00278e8e1207709477d00c5e750fe42ebbae261302df924fb92fa

  • SHA512

    5c45d2834bfb3a57d98ff85142f4fe9675c8bbcebaf40859cd1e93b81c3a5e429531c71527b9d667ee8a2ad561a98b47980a098c69fbb564fe39b0ef6fda25d6

Malware Config

Extracted

Family

buer

C2

http://loaadik01.pro/

http://loaadik02.pro/

Targets

    • Target

      2e12043576f00278e8e1207709477d00c5e750fe42ebbae261302df924fb92fa

    • Size

      1.6MB

    • MD5

      f0120868b013fa572bad5ceb3d50798d

    • SHA1

      8ccd636f9852a713e9c0aff7f2cfba667ad95247

    • SHA256

      2e12043576f00278e8e1207709477d00c5e750fe42ebbae261302df924fb92fa

    • SHA512

      5c45d2834bfb3a57d98ff85142f4fe9675c8bbcebaf40859cd1e93b81c3a5e429531c71527b9d667ee8a2ad561a98b47980a098c69fbb564fe39b0ef6fda25d6

    • Buer

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

    • Buer Loader

      Detects Buer loader in memory or disk.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Executes dropped EXE

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Adds Run key to start application

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks