General

  • Target

    bb3095d5b8b59d58ff10d4202d77713c9e76e78a048fc378b4c1aed9e3e1ab27

  • Size

    4.4MB

  • Sample

    240620-2477yswdlm

  • MD5

    5b16619b3b35341918d658ce2aa8c2b5

  • SHA1

    17b5642fdd851cade939d743748179f5f80cbc83

  • SHA256

    bb3095d5b8b59d58ff10d4202d77713c9e76e78a048fc378b4c1aed9e3e1ab27

  • SHA512

    a5775f3ca64f594db2dd98d0881f3f7dd72049edd320d499b471b30d817f65159af86bea1923d86821b80b76cd47f0d245c225b556583f7481634b88c705d8ad

  • SSDEEP

    98304:m4wBmwG8fGIGKIU6bMjY9jlUXOvyfTVZ9rko:fKImIU6eYLUrVko

Malware Config

Extracted

Family

socks5systemz

C2

bukivfv.com

http://bukivfv.com/search/?q=67e28dd86f5ff42d4509ac187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f87fd14c0ec94

bubsudj.com

http://bubsudj.com/search/?q=67e28dd8655bf57a4609f84c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa48e8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff718c2ea959b32

Targets

    • Target

      bb3095d5b8b59d58ff10d4202d77713c9e76e78a048fc378b4c1aed9e3e1ab27

    • Size

      4.4MB

    • MD5

      5b16619b3b35341918d658ce2aa8c2b5

    • SHA1

      17b5642fdd851cade939d743748179f5f80cbc83

    • SHA256

      bb3095d5b8b59d58ff10d4202d77713c9e76e78a048fc378b4c1aed9e3e1ab27

    • SHA512

      a5775f3ca64f594db2dd98d0881f3f7dd72049edd320d499b471b30d817f65159af86bea1923d86821b80b76cd47f0d245c225b556583f7481634b88c705d8ad

    • SSDEEP

      98304:m4wBmwG8fGIGKIU6bMjY9jlUXOvyfTVZ9rko:fKImIU6eYLUrVko

    • Detect Socks5Systemz Payload

    • Socks5Systemz

      Socks5Systemz is a botnet written in C++.

    • Executes dropped EXE

    • Loads dropped DLL

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

MITRE ATT&CK Enterprise v15

Tasks