General

  • Target
    xlzyktus
  • Size 549KB
  • Sample230512-ndvx2scg88
  • SHA256 311c93575efd4eeeb9c6674d0ab8de263b72a8fb060d04450daccc78ec095151
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xorddos

C2
  • www.imagetw0.com:889

  • www.myserv012.com:889

  • http://qq.com/lib.asp

Attributes
  • crc_polynomial

    CDB88320

xor.plain

Targets

    • Target
      xlzyktus
    • Size 549KB
    • SHA256 311c93575efd4eeeb9c6674d0ab8de263b72a8fb060d04450daccc78ec095151
    • MD5 SHA1 SHA512 SSDEEP
    • XorDDoS

      Botnet and downloader malware targeting Linux-based operating systems and IoT devices.

    • XorDDoS payload

    • Writes file to system bin folder

    • Creates/modifies Cron job

      Cron allows running tasks on a schedule, and is commonly used for malware persistence.

    • Deletes itself

    • Enumerates active TCP sockets

      Gets active TCP sockets from /proc virtual filesystem.

    • Executes dropped EXE

    • Modifies init.d

      Adds/modifies system service, likely for persistence.

    • Unexpected DNS network traffic destination

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

    • Writes file to shm directory

      Malware can drop malicious files in the shm directory which will run directly from RAM.

    • Reads system network configuration

      Uses contents of /proc filesystem to enumerate network settings.

    • Reads runtime system information

      Reads data from /proc virtual filesystem.

    • Writes file to tmp directory

      Malware often drops required files in the /tmp directory.

MITRE ATT&CK Enterprise v6

Tasks