General

  • Target
    sever1078.x86.elf
  • Size 455KB
  • Sample260920-e7skcabp7v
  • SHA256 80828752354b3a770b7c63f46006334fc705c718d40cf3e1df1dc5a4f0fdf043
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • mirai

C2
  • bigbigvol.qd.je

Targets

    • Target
      sever1078.x86.elf
    • Size 455KB
    • SHA256 80828752354b3a770b7c63f46006334fc705c718d40cf3e1df1dc5a4f0fdf043
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Family: Mirai

      Mirai is a prevalent Linux malware infecting exposed network devices.

    • Contacts a large (23370) 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.

    • Executes dropped EXE

    • 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.

    • Enumerates running processes

      Discovers information about currently running processes on the system

    • Modifies systemd

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

    • Writes file to system bin folder

MITRE ATT&CK Enterprise v16

Tasks