General

  • Target
    ohshit.sh
  • Size 3KB
  • Sample260731-pn4hlstakf
  • SHA256 2891f71eabf60c4554d5d2b6bcecde6a6cc7f507952e8fa1edbcefe9f7df88f0
  • MD5 SHA1 SHA512 TLSH

Malware Config

Extracted

Family
  • mirai

Botnet
  • LZRD

C2
  • 103.161.17.92

Extracted

Family
  • mirai

Botnet
  • LZRD

C2
  • 103.161.17.92

Targets

    • Target
      ohshit.sh
    • Size 3KB
    • SHA256 2891f71eabf60c4554d5d2b6bcecde6a6cc7f507952e8fa1edbcefe9f7df88f0
    • MD5 SHA1 SHA512 TLSH
    • Family: Mirai

      Mirai is a prevalent Linux malware infecting exposed network devices.

    • File and Directory Permissions Modification

      Adversaries may modify file or directory permissions to evade defenses.

    • Deletes system logs

      Deletes log file which contains global system messages. Adversaries may delete system logs to minimize their footprint.

    • 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.

    • Deletes log files

      Deletes log files on the system.

    • 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.

    • Writes file to system bin folder

    • UPX packed file

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

MITRE ATT&CK Enterprise v16

Tasks