Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    debian-9_mips
  • resource
    debian9-mipsbe-20240418-en
  • resource tags

    arch:mipsimage:debian9-mipsbe-20240418-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
  • submitted
    16/04/2025, 18:39

General

  • Target

    linux_mips.elf

  • Size

    2.2MB

  • MD5

    5ec2f6c412ccfcc16781a7f3f37fb474

  • SHA1

    912cb18493577a0b5c64d994f4b6bc05990ae390

  • SHA256

    e58dffab271cd20cb6089017017d8e6c5f68c56c2b1877e8a94bbcdadcd4ef4c

  • SHA512

    ce37675e1ccfd0e7fdf2fe155473d94222ceb28cf8a3c797033617a07e7ce632240bdbb338d7c3aec5131a343d172a4d58a05e2558408e42b3eb80cf1767857f

  • SSDEEP

    24576:sydSxVTKwDLjPgq745GSsm3B6xu2pMVX2gqel9gLcR:5CmUsqelqu

Malware Config

Signatures

  • Kaiji 1 IoCs

    Kaiji payload

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

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

  • Changes its process name 1 IoCs
  • Command and Scripting Interpreter: Unix Shell 1 TTPs 2 IoCs

    Execute scripts via Unix Shell.

  • Enumerates kernel/hardware configuration 1 TTPs 33 IoCs

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

  • Reads runtime system information 64 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:731
    • /tmp/linux_mips.elf
      /tmp/linux_mips.elf " "
      2⤵
      • Changes its process name
      • Enumerates kernel/hardware configuration
      • System Network Configuration Discovery
      PID:737
      • /bin/sh
        /bin/sh -c "/etc/32676&"
        3⤵
        • Executes dropped EXE
        • Command and Scripting Interpreter: Unix Shell
        PID:746
      • /usr/sbin/service
        service crond start
        3⤵
          PID:750
          • /usr/bin/basename
            basename /usr/sbin/service
            4⤵
              PID:751
            • /usr/bin/basename
              basename /usr/sbin/service
              4⤵
                PID:754
              • /bin/systemctl
                systemctl --quiet is-active multi-user.target
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:757
              • /bin/systemctl
                systemctl list-unit-files --full "--type=socket"
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:762
              • /bin/sed
                sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
                4⤵
                • Reads runtime system information
                PID:763
              • /bin/systemctl
                systemctl -p Triggers show dbus.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:769
              • /bin/systemctl
                systemctl -p Triggers show ssh.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:771
              • /bin/systemctl
                systemctl -p Triggers show syslog.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:773
              • /bin/systemctl
                systemctl -p Triggers show systemd-fsckd.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:776
              • /bin/systemctl
                systemctl -p Triggers show systemd-initctl.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:778
              • /bin/systemctl
                systemctl -p Triggers show systemd-journald-audit.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:780
              • /bin/systemctl
                systemctl -p Triggers show systemd-journald-dev-log.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:781
              • /bin/systemctl
                systemctl -p Triggers show systemd-journald.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:783
              • /bin/systemctl
                systemctl -p Triggers show systemd-networkd.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:784
              • /bin/systemctl
                systemctl -p Triggers show systemd-rfkill.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:785
              • /bin/systemctl
                systemctl -p Triggers show systemd-udevd-control.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:786
              • /bin/systemctl
                systemctl -p Triggers show systemd-udevd-kernel.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:787
            • /usr/local/sbin/systemctl
              systemctl start crond.service
              3⤵
                PID:750
              • /usr/local/bin/systemctl
                systemctl start crond.service
                3⤵
                  PID:750
                • /usr/sbin/systemctl
                  systemctl start crond.service
                  3⤵
                    PID:750
                  • /usr/bin/systemctl
                    systemctl start crond.service
                    3⤵
                      PID:750
                    • /sbin/systemctl
                      systemctl start crond.service
                      3⤵
                        PID:750
                      • /bin/systemctl
                        systemctl start crond.service
                        3⤵
                        • Enumerates kernel/hardware configuration
                        • Reads runtime system information
                        PID:750
                      • /bin/sh
                        /bin/sh -c "echo \"*/1 * * * * root /.mod \" >> /etc/crontab"
                        3⤵
                        • Creates/modifies Cron job
                        • Command and Scripting Interpreter: Unix Shell
                        PID:788
                      • /usr/bin/renice
                        renice -20 737
                        3⤵
                          PID:789
                        • /bin/mount
                          mount -o bind /tmp/ /proc/737
                          3⤵
                            PID:790
                          • /usr/sbin/service
                            service cron start
                            3⤵
                              PID:791
                              • /usr/bin/basename
                                basename /usr/sbin/service
                                4⤵
                                  PID:792
                                • /usr/bin/basename
                                  basename /usr/sbin/service
                                  4⤵
                                    PID:793
                                  • /bin/systemctl
                                    systemctl --quiet is-active multi-user.target
                                    4⤵
                                    • Enumerates kernel/hardware configuration
                                    • Reads runtime system information
                                    PID:794
                                  • /bin/systemctl
                                    systemctl list-unit-files --full "--type=socket"
                                    4⤵
                                    • Enumerates kernel/hardware configuration
                                    • Reads runtime system information
                                    PID:796
                                  • /bin/sed
                                    sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
                                    4⤵
                                      PID:797
                                    • /bin/systemctl
                                      systemctl -p Triggers show dbus.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:798
                                    • /bin/systemctl
                                      systemctl -p Triggers show ssh.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:799
                                    • /bin/systemctl
                                      systemctl -p Triggers show syslog.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:800
                                    • /bin/systemctl
                                      systemctl -p Triggers show systemd-fsckd.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      PID:801
                                    • /bin/systemctl
                                      systemctl -p Triggers show systemd-initctl.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:802
                                    • /bin/systemctl
                                      systemctl -p Triggers show systemd-journald-audit.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:803
                                    • /bin/systemctl
                                      systemctl -p Triggers show systemd-journald-dev-log.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:804
                                    • /bin/systemctl
                                      systemctl -p Triggers show systemd-journald.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:805
                                    • /bin/systemctl
                                      systemctl -p Triggers show systemd-networkd.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:806
                                    • /bin/systemctl
                                      systemctl -p Triggers show systemd-rfkill.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:807
                                    • /bin/systemctl
                                      systemctl -p Triggers show systemd-udevd-control.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      PID:808
                                    • /bin/systemctl
                                      systemctl -p Triggers show systemd-udevd-kernel.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:810
                                  • /usr/local/sbin/systemctl
                                    systemctl start cron.service
                                    3⤵
                                      PID:791
                                    • /usr/local/bin/systemctl
                                      systemctl start cron.service
                                      3⤵
                                        PID:791
                                      • /usr/sbin/systemctl
                                        systemctl start cron.service
                                        3⤵
                                          PID:791
                                        • /usr/bin/systemctl
                                          systemctl start cron.service
                                          3⤵
                                            PID:791
                                          • /sbin/systemctl
                                            systemctl start cron.service
                                            3⤵
                                              PID:791
                                            • /bin/systemctl
                                              systemctl start cron.service
                                              3⤵
                                              • Enumerates kernel/hardware configuration
                                              • Reads runtime system information
                                              PID:791
                                            • /bin/systemctl
                                              systemctl start crond.service
                                              3⤵
                                              • Enumerates kernel/hardware configuration
                                              • Reads runtime system information
                                              PID:813
                                        • /etc/32676
                                          /etc/32676
                                          1⤵
                                            PID:748
                                            • /bin/sleep
                                              sleep 60
                                              2⤵
                                                PID:752
                                              • /bin/sleep
                                                sleep 60
                                                2⤵
                                                  PID:883
                                                • /bin/sleep
                                                  sleep 60
                                                  2⤵
                                                    PID:894

                                                Network

                                                MITRE ATT&CK Enterprise v16

                                                Replay Monitor

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                                                Downloads

                                                • /.mod

                                                  Filesize

                                                  34B

                                                  MD5

                                                  f5a3713282e43c200f30342f5ff5e2ea

                                                  SHA1

                                                  2b2ce1a207e2b691a074c6f78f71c4785aae426a

                                                  SHA256

                                                  6ab64e727571458d4884fb2fe82c27c467db0699cb8f648b3f0217c35d2b7511

                                                  SHA512

                                                  5bcb8cd360409147a486755f90e0cdd97183af02ce8de5135b7c6a8a010deb9ef12dcd5ee9a2a8fd2e159347f68e72d6b7fd75e943b4fcd928d7a74b97476013

                                                • /etc/.walk

                                                  Filesize

                                                  41B

                                                  MD5

                                                  2eed6ffd6b20736c6771b584cd90c947

                                                  SHA1

                                                  aa4770157d68a10c43f185f1292935accef7504a

                                                  SHA256

                                                  db831bacf5e5f82cbca4da483f12b4c8cef6b47b19ac4b4ca1061d95a3c53e7c

                                                  SHA512

                                                  4514199e5fc684f4cbd04facb3f1838928c1726ad4084a8a0cfc373fda0633237b22ee36ed2c2f03ca1aa6fb6fd71194b301eeffb4bd7f5c73d0624a443371f5

                                                • /etc/.walk

                                                  Filesize

                                                  90B

                                                  MD5

                                                  54cdd87a2c34172249b99a4f1aae4c60

                                                  SHA1

                                                  f66841716ec38e63bc6ce04302cd82d5d942f5b5

                                                  SHA256

                                                  181fe8e7f0b277e45eddb6d277bb204ffd93d539a02222f34a1595f02aad94f1

                                                  SHA512

                                                  b5f877dae34167191ae4945e0d1db94be9705ecccaed806f5adcc14928dc6be3fceaa0cc04edcbb8127ba8b1a3470c7187a805410dc29e9fddfc5c1cc4a95c13

                                                • /etc/32676

                                                  Filesize

                                                  56B

                                                  MD5

                                                  585f408444cbca746945f0cb63f2c3f0

                                                  SHA1

                                                  0e44bae17174f04514e770ca7fc4bec1007e39cd

                                                  SHA256

                                                  ebb961c647363dfa90f302de378e0e61807b9b792fc86616635a713cca8f4299

                                                  SHA512

                                                  022241dbafad55164701f67ef5b84154e3af97c5dfe77dee7bf8406f2befbd2962bbf4f243432b2f41d6c2376b87fcf551fd6945e03ddb02a5619c2f0f69c596

                                                • /etc/opt.services.cfg

                                                  Filesize

                                                  2.2MB

                                                  MD5

                                                  5ec2f6c412ccfcc16781a7f3f37fb474

                                                  SHA1

                                                  912cb18493577a0b5c64d994f4b6bc05990ae390

                                                  SHA256

                                                  e58dffab271cd20cb6089017017d8e6c5f68c56c2b1877e8a94bbcdadcd4ef4c

                                                  SHA512

                                                  ce37675e1ccfd0e7fdf2fe155473d94222ceb28cf8a3c797033617a07e7ce632240bdbb338d7c3aec5131a343d172a4d58a05e2558408e42b3eb80cf1767857f

                                                • /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