General

  • Target
    mips.elf
  • Size 464KB
  • Sample261012-trgv8sty7k
  • SHA256 98cf37d566a28013cb5a1917466d43a4435f0064cfa995ae70c2f85c516f277f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      mips.elf
    • Size 464KB
    • SHA256 98cf37d566a28013cb5a1917466d43a4435f0064cfa995ae70c2f85c516f277f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects Mirai

    • Family: Mirai

      Mirai is a prevalent Linux malware infecting exposed network devices.

    • Executes dropped EXE

    • Traces itself

      Traces itself to prevent debugging attempts

    • Unexpected DNS network traffic destination

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

    • Creates/modifies Cron job

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

    • Creates/modifies environment variables

      Creating/modifying environment variables is a common persistence mechanism.

    • Deletes log files

      Deletes log files on the system.

    • Modifies init.d

      Adds/modifies system service, likely for persistence.

    • Modifies rc script

      Adding/modifying system rc scripts is a common persistence mechanism.

    • Modifies systemd

      Adds/ modifies systemd service files. Likely to achieve persistence.

    • Write file to user bin folder

    • Writes file to system bin folder

    • Modifies Bash startup script

MITRE ATT&CK Enterprise v16

Tasks