Resubmissions

22-11-2022 06:53

221122-hnvgdagf3v 10

22-11-2022 05:33

221122-f8tpgabe75 10

General

  • Target

    ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de

  • Size

    799.1MB

  • Sample

    221122-hnvgdagf3v

  • MD5

    c92f10574719f64de71f15142e927922

  • SHA1

    bc1c5d3a8481f8fda448c55d821da9b2f55fed66

  • SHA256

    ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de

  • SHA512

    b0a51feeb6053602eb56a354b25e1ef7d39856e1daa648a8186546476b7f67358c4c40978035fbf246df00323587cfc309506a60a1e5354a86ac6f8c81db87d6

  • SSDEEP

    98304:NjtiC2lkD5L18CJVE0CGTtHdxpXP3UDSMOKS6gqiLZFIfbdSK3m:VtP58CrZf3iVrS6gqCZFcxD2

Malware Config

Extracted

Family

systembc

C2

212.8.244.5:4001

192.168.1.149:4001

Targets

    • Target

      ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de

    • Size

      799.1MB

    • MD5

      c92f10574719f64de71f15142e927922

    • SHA1

      bc1c5d3a8481f8fda448c55d821da9b2f55fed66

    • SHA256

      ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de

    • SHA512

      b0a51feeb6053602eb56a354b25e1ef7d39856e1daa648a8186546476b7f67358c4c40978035fbf246df00323587cfc309506a60a1e5354a86ac6f8c81db87d6

    • SSDEEP

      98304:NjtiC2lkD5L18CJVE0CGTtHdxpXP3UDSMOKS6gqiLZFIfbdSK3m:VtP58CrZf3iVrS6gqCZFcxD2

    • Modifies WinLogon for persistence

    • SystemBC

      SystemBC is a proxy and remote administration tool first seen in 2019.

    • 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.

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks