General

  • Target

    1b1f3cf5a07eda43fab214b026b2431baec1cf9632d3c0017e8555e87cd0f676

  • Size

    1.6MB

  • Sample

    220523-3vttmsdchn

  • MD5

    1518649e83f4c956ce199824aab84edd

  • SHA1

    22e1c529f39cef4ea6e266323fb4a0d620be9cd1

  • SHA256

    1b1f3cf5a07eda43fab214b026b2431baec1cf9632d3c0017e8555e87cd0f676

  • SHA512

    595f4ebb9a78672e29b42429b8cf31055f3af2393640aa41ae2766947406005a82267eba33c99ad8f7b5c71bc4a3cf10d890981c27cbffb2f9893e2c08147ed2

Score
10/10

Malware Config

Extracted

Family

buer

C2

https://loddd01.info/

https://loddd02.info/

Targets

    • Target

      1b1f3cf5a07eda43fab214b026b2431baec1cf9632d3c0017e8555e87cd0f676

    • Size

      1.6MB

    • MD5

      1518649e83f4c956ce199824aab84edd

    • SHA1

      22e1c529f39cef4ea6e266323fb4a0d620be9cd1

    • SHA256

      1b1f3cf5a07eda43fab214b026b2431baec1cf9632d3c0017e8555e87cd0f676

    • SHA512

      595f4ebb9a78672e29b42429b8cf31055f3af2393640aa41ae2766947406005a82267eba33c99ad8f7b5c71bc4a3cf10d890981c27cbffb2f9893e2c08147ed2

    Score
    10/10
    • 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks