Resubmissions

15/04/2024, 11:31

240415-nmzycsff4y10

10/04/2024, 04:57

240410-fljwradc8610

10/04/2024, 04:57

240410-flcsfadc8210

10/04/2024, 04:57

240410-flb6xadc7810

10/04/2024, 04:57

240410-flbkdadc7710

19/12/2023, 13:06

231219-qcfg3sadbq10

General

  • Target
    2d3ba7dd14b9a579b2626fa5baee19bd
  • Size 209KB
  • Sample240410-flcsfadc82
  • SHA256 42a191ee4f9593db8f514cce85ad8b9d6533bc71983a9529e7a5d68764d21679
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • systembc

C2
  • yan0212.com:4039

  • yan0212.net:4039

Targets

    • Target
      2d3ba7dd14b9a579b2626fa5baee19bd
    • Size 209KB
    • SHA256 42a191ee4f9593db8f514cce85ad8b9d6533bc71983a9529e7a5d68764d21679
    • MD5 SHA1 SHA512 SSDEEP
    • SystemBC

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

    • Contacts a large (710) amount of remote hosts

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

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • 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.

MITRE ATT&CK Enterprise v15

Tasks