Resubmissions

18/04/2024, 11:46

240418-nxbcraca3410

18/04/2024, 11:45

240418-nw8a4adb7110

18/04/2024, 11:45

240418-nw7pkadb7x10

18/04/2024, 11:45

240418-nw2tbabh9710

18/04/2024, 11:45

240418-nw17sabh9610

18/04/2024, 10:00

240418-l12m1ahg8410

General

  • Target
    06063b690db71cc96cc36b528e7a8fa599046491f976e94615392975b96b0d77
  • Size 192KB
  • Sample240418-nw8a4adb71
  • SHA256 06063b690db71cc96cc36b528e7a8fa599046491f976e94615392975b96b0d77
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • systembc

C2
  • 172.104.63.157:4001

Targets

    • Target
      06063b690db71cc96cc36b528e7a8fa599046491f976e94615392975b96b0d77
    • Size 192KB
    • SHA256 06063b690db71cc96cc36b528e7a8fa599046491f976e94615392975b96b0d77
    • MD5 SHA1 SHA512 SSDEEP
    • SystemBC

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

    • Contacts a large (652) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

    • 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.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Uses Tor communications

      Malware can proxy its traffic through Tor for more anonymity.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    • Target
      $PLUGINSDIR/System.dll
    • Size 11KB
    • SHA256 6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10

MITRE ATT&CK Enterprise v15

Tasks