General

  • Target
    kaizen.arm7.elf
  • Size 246KB
  • Sample260827-l3ftbasfmg
  • SHA256 4f7c33e36a86daeecc7f465caae0492c7da4bf697eaf38e1bc11dc9c15cec142
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • mirai

Botnet
  • OMNI

Targets

    • Target
      kaizen.arm7.elf
    • Size 246KB
    • SHA256 4f7c33e36a86daeecc7f465caae0492c7da4bf697eaf38e1bc11dc9c15cec142
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Family: Mirai

      Mirai is a prevalent Linux malware infecting exposed network devices.

    • Contacts a large (1049103) amount of remote hosts

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

    • Creates a large amount of network flows

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

    • Deletes itself

    • Modifies Watchdog functionality

      Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.

    • Creates/modifies Cron job

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

    • Enumerates active TCP sockets

      Gets active TCP sockets from /proc virtual filesystem.

    • Modifies rc script

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

    • Write file to user bin folder

MITRE ATT&CK Enterprise v16

Tasks