General

  • Target
    x86_64.elf
  • Size 417KB
  • Sample261014-a9bmdsdy4y
  • SHA256 790a894bb0f9991f03c6a28c0a7edbdf87e3fcd1d799dc008831ceaf28356401
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      x86_64.elf
    • Size 417KB
    • SHA256 790a894bb0f9991f03c6a28c0a7edbdf87e3fcd1d799dc008831ceaf28356401
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects Mirai

    • Family: Mirai

      Mirai is a prevalent Linux malware infecting exposed network devices.

    • Modifies the dynamic linker configuration file

      Malware can modify the configuration file of the dynamic linker to preload malicous libraries with every executed process.

    • Deletes itself

    • 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.

    • Creates/modifies environment variables

      Creating/modifying environment variables is a common persistence mechanism.

    • Deletes log files

      Deletes log files on the system.

    • 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 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