General

  • Target
    mipsel.elf
  • Size 146KB
  • Sample260806-yr1esszcpg
  • SHA256 982e2e9c616a4ae1113eaf9c39932afb30f8cd2548a404ce33f90fc92c78470a
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      mipsel.elf
    • Size 146KB
    • SHA256 982e2e9c616a4ae1113eaf9c39932afb30f8cd2548a404ce33f90fc92c78470a
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Executes dropped EXE

    • Modifies Watchdog functionality

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

    • Traces itself

      Traces itself to prevent debugging attempts

    • 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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v16

Tasks