Analysis

  • max time kernel
    149s
  • max time network
    156s
  • 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
    02-11-2024 03:34

General

  • Target

    linux_mips.elf

  • Size

    2.2MB

  • MD5

    b5a8f29c137a214ffef83b0bc5daad97

  • SHA1

    90fc46188e7bc83a423a3ea8fe0392660f594eb0

  • SHA256

    63bfb2501a4607933ba3bdbbdfeca57a80017215006877b52638fd8ad126788c

  • SHA512

    ed372ee7f59c15b9dbf005f20d660223b23c04a0d3f660efdcfb9fc1bd9a0d5aca836befecc6a155104607883520f8da0ff911534dd330ade448f52c9d52e544

  • SSDEEP

    24576:cdz8hxtvZ8T0p+gpvRYvyVW1Z0+WJ/RVXbwqel9OFI+TcR:TFpW0gqelga+u

Malware Config

Signatures

  • Kaiji 1 IoCs

    Kaiji payload

  • Kaiji family
  • Executes dropped EXE 5 IoCs
  • Creates/modifies Cron job 1 TTPs 1 IoCs

    Cron allows running tasks on a schedule, and is commonly used for malware persistence.

  • Command and Scripting Interpreter: Unix Shell 1 TTPs 2 IoCs

    Execute scripts via Unix Shell.

  • Enumerates kernel/hardware configuration 1 TTPs 13 IoCs

    Reads contents of /sys virtual filesystem to enumerate system information.

  • Reads runtime system information 31 IoCs

    Reads data from /proc virtual filesystem.

  • System Network Configuration Discovery 1 TTPs 2 IoCs

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

Processes

  • /tmp/linux_mips.elf
    /tmp/linux_mips.elf
    1⤵
    • Enumerates kernel/hardware configuration
    • System Network Configuration Discovery
    PID:706
    • /tmp/linux_mips.elf
      /tmp/linux_mips.elf " "
      2⤵
      • Enumerates kernel/hardware configuration
      • System Network Configuration Discovery
      PID:715
      • /bin/sh
        /bin/sh -c "/etc/32676&"
        3⤵
        • Command and Scripting Interpreter: Unix Shell
        PID:723
        • /etc/32676
          /etc/32676
          4⤵
          • Executes dropped EXE
          PID:725
          • /bin/sleep
            sleep 60
            5⤵
              PID:729
            • /etc/opt.services.cfg
              /etc/opt.services.cfg
              5⤵
              • Executes dropped EXE
              • Enumerates kernel/hardware configuration
              PID:833
              • /etc/opt.services.cfg
                /etc/opt.services.cfg " "
                6⤵
                • Executes dropped EXE
                • Enumerates kernel/hardware configuration
                PID:837
            • /bin/sleep
              sleep 60
              5⤵
                PID:838
              • /etc/opt.services.cfg
                /etc/opt.services.cfg
                5⤵
                • Executes dropped EXE
                • Enumerates kernel/hardware configuration
                PID:884
                • /etc/opt.services.cfg
                  /etc/opt.services.cfg " "
                  6⤵
                  • Executes dropped EXE
                  • Enumerates kernel/hardware configuration
                  PID:888
              • /bin/sleep
                sleep 60
                5⤵
                  PID:889
            • /usr/sbin/service
              service crond start
              3⤵
                PID:726
                • /usr/bin/basename
                  basename /usr/sbin/service
                  4⤵
                    PID:728
                  • /usr/bin/basename
                    basename /usr/sbin/service
                    4⤵
                      PID:731
                    • /bin/systemctl
                      systemctl --quiet is-active multi-user.target
                      4⤵
                      • Enumerates kernel/hardware configuration
                      • Reads runtime system information
                      PID:733
                    • /bin/systemctl
                      systemctl list-unit-files --full "--type=socket"
                      4⤵
                      • Enumerates kernel/hardware configuration
                      • Reads runtime system information
                      PID:737
                    • /bin/sed
                      sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
                      4⤵
                      • Reads runtime system information
                      PID:738
                  • /usr/local/sbin/systemctl
                    systemctl "--job-mode=ignore-dependencies" start crond.service
                    3⤵
                      PID:726
                    • /usr/local/bin/systemctl
                      systemctl "--job-mode=ignore-dependencies" start crond.service
                      3⤵
                        PID:726
                      • /usr/sbin/systemctl
                        systemctl "--job-mode=ignore-dependencies" start crond.service
                        3⤵
                          PID:726
                        • /usr/bin/systemctl
                          systemctl "--job-mode=ignore-dependencies" start crond.service
                          3⤵
                            PID:726
                          • /sbin/systemctl
                            systemctl "--job-mode=ignore-dependencies" start crond.service
                            3⤵
                              PID:726
                            • /bin/systemctl
                              systemctl "--job-mode=ignore-dependencies" start crond.service
                              3⤵
                              • Enumerates kernel/hardware configuration
                              • Reads runtime system information
                              PID:726
                            • /bin/sh
                              /bin/sh -c "echo \"*/1 * * * * root /.mod \" >> /etc/crontab"
                              3⤵
                              • Creates/modifies Cron job
                              • Command and Scripting Interpreter: Unix Shell
                              PID:745
                            • /usr/bin/renice
                              renice -20 715
                              3⤵
                                PID:749
                              • /bin/mount
                                mount -o bind /tmp/ /proc/715
                                3⤵
                                • Reads runtime system information
                                PID:751
                              • /usr/sbin/service
                                service cron start
                                3⤵
                                  PID:753
                                  • /usr/bin/basename
                                    basename /usr/sbin/service
                                    4⤵
                                      PID:754
                                    • /usr/bin/basename
                                      basename /usr/sbin/service
                                      4⤵
                                        PID:755
                                      • /bin/systemctl
                                        systemctl --quiet is-active multi-user.target
                                        4⤵
                                        • Enumerates kernel/hardware configuration
                                        • Reads runtime system information
                                        PID:756
                                      • /bin/sed
                                        sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
                                        4⤵
                                        • Reads runtime system information
                                        PID:760
                                      • /bin/systemctl
                                        systemctl list-unit-files --full "--type=socket"
                                        4⤵
                                        • Enumerates kernel/hardware configuration
                                        • Reads runtime system information
                                        PID:759
                                    • /usr/local/sbin/systemctl
                                      systemctl "--job-mode=ignore-dependencies" start cron.service
                                      3⤵
                                        PID:753
                                      • /usr/local/bin/systemctl
                                        systemctl "--job-mode=ignore-dependencies" start cron.service
                                        3⤵
                                          PID:753
                                        • /usr/sbin/systemctl
                                          systemctl "--job-mode=ignore-dependencies" start cron.service
                                          3⤵
                                            PID:753
                                          • /usr/bin/systemctl
                                            systemctl "--job-mode=ignore-dependencies" start cron.service
                                            3⤵
                                              PID:753
                                            • /sbin/systemctl
                                              systemctl "--job-mode=ignore-dependencies" start cron.service
                                              3⤵
                                                PID:753
                                              • /bin/systemctl
                                                systemctl "--job-mode=ignore-dependencies" start cron.service
                                                3⤵
                                                • Enumerates kernel/hardware configuration
                                                • Reads runtime system information
                                                PID:753
                                              • /bin/systemctl
                                                systemctl start crond.service
                                                3⤵
                                                • Enumerates kernel/hardware configuration
                                                • Reads runtime system information
                                                PID:761

                                          Network

                                          MITRE ATT&CK Enterprise v15

                                          Replay Monitor

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                                          Downloads

                                          • /.mod

                                            Filesize

                                            34B

                                            MD5

                                            f5a3713282e43c200f30342f5ff5e2ea

                                            SHA1

                                            2b2ce1a207e2b691a074c6f78f71c4785aae426a

                                            SHA256

                                            6ab64e727571458d4884fb2fe82c27c467db0699cb8f648b3f0217c35d2b7511

                                            SHA512

                                            5bcb8cd360409147a486755f90e0cdd97183af02ce8de5135b7c6a8a010deb9ef12dcd5ee9a2a8fd2e159347f68e72d6b7fd75e943b4fcd928d7a74b97476013

                                          • /etc/.walk

                                            Filesize

                                            41B

                                            MD5

                                            969c8cca63e0a222c5e57f44b34a0924

                                            SHA1

                                            ab4c40d0cacdd15edc895bbbe54c5ae57e2e8f9f

                                            SHA256

                                            7c55d9d92ed75324ce414dc67a4a66ef31c9de0f3e51667034254b10f4281ccd

                                            SHA512

                                            29fbda92565de3f7fc8143e59603f5af508e3ff0303905100ee61f9e56aa0df2468db1bad5e563869b6368854989cbb0858859946bc59cf81f40260ba388e8f8

                                          • /etc/.walk

                                            Filesize

                                            90B

                                            MD5

                                            6440d7093429aa4d47f92fbf5922e640

                                            SHA1

                                            8d5b0ea134206bd7cd62bc509b0e9bdf77bcbba9

                                            SHA256

                                            3fdfe2279dfd5cb2168a74af4251de8818609bcd2c9dddbceeaf2d70ae5a762c

                                            SHA512

                                            d294d5292c36c0632f20c7830102ea7e07e0930473b62c664d8d8916be6bcd0480588f29257d3b7233c5b74413e6e2de5f2d87729a80283f41fdfe9956211ac9

                                          • /etc/32676

                                            Filesize

                                            61B

                                            MD5

                                            47684525bfdf26f49fd1cf742b17c015

                                            SHA1

                                            c4ab14ba22420ff9acadfc698a38d0cd99e9fbfa

                                            SHA256

                                            b7ce294613dd2c237a4a50548bfcd5c14d166107f2d2e965499bc78695300d5b

                                            SHA512

                                            948f9c519ae9afe1c821c5d58da2e584e50356dabef597ccd408853a9038560b9fb1c5894900e2725b48977ffd49d18a439436bb4946e2164ac9fcf2a8637621

                                          • /etc/opt.services.cfg

                                            Filesize

                                            2.2MB

                                            MD5

                                            b5a8f29c137a214ffef83b0bc5daad97

                                            SHA1

                                            90fc46188e7bc83a423a3ea8fe0392660f594eb0

                                            SHA256

                                            63bfb2501a4607933ba3bdbbdfeca57a80017215006877b52638fd8ad126788c

                                            SHA512

                                            ed372ee7f59c15b9dbf005f20d660223b23c04a0d3f660efdcfb9fc1bd9a0d5aca836befecc6a155104607883520f8da0ff911534dd330ade448f52c9d52e544

                                          • /etc/profile.d/gateway.sh

                                            Filesize

                                            915B

                                            MD5

                                            217d1865cb2770d7650ead8960539181

                                            SHA1

                                            5f0f39bd441fa71c36306386d8a81f59480d4e53

                                            SHA256

                                            fff6d267ac34e86916b0f08ff177c854a20f9353ecd1c3d0250c18fd0b375fa3

                                            SHA512

                                            f3442829f25e60dc17504619798da502922ea3ab2d92355316e67bd236423e28ed0af8f3d2270b52fe3e7108f5280ea113ec9a03cc1abdc8d6360ecece455d31

                                          • /usr/bin/include/find

                                            Filesize

                                            240KB

                                            MD5

                                            97b5c6c1b307114efc38193175a343c3

                                            SHA1

                                            24015d4f95c6878ea5027c134eddebb7126b610f

                                            SHA256

                                            b1a89f313023b476fc826d8fac689679504e61ae8e650681fb966e810ed34970

                                            SHA512

                                            e5359f3e082f54f5cfd7afa7771d8724d161d48d09372f203bdca222a47a63919fdfb76b6db7fb8ff61e92f8fd04fdec962e94331ff12705cf53ce5e23d33180