Analysis

  • max time kernel
    149s
  • max time network
    153s
  • 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
    04-11-2024 15:57

General

  • Target

    linux_mips_softfloat.elf

  • Size

    5.6MB

  • MD5

    17fac7ffcec5df4d624a5e46c3ce97d1

  • SHA1

    21c0af1bd2753963f2444b999d646a7ed6f02033

  • SHA256

    85c0c57eed2a9c08b00919203227ba566a1239457b2edf88ea83d82b4b5e551e

  • SHA512

    90026422a550a6f10b6a0b8dac521a2ce4a0f9575f5c177ebf70d71ad1a815aa0aebada2e188207b8dfb6ba10597c4d59c4ff037e7b766bb55144b9a0413bcde

  • SSDEEP

    49152:L3qbSw1zUu72RTScFnsKbyRHzPDPs4coYtJkEk2wBIxWyDp/9zUH+zOuux83ZIqG:jqO0o2pgDQ

Malware Config

Signatures

  • Kaiji 1 IoCs

    Kaiji payload

  • Kaiji family
  • kaiji_chaosbot 1 IoCs

    Chaos-variant payload

  • 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.

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Changes its process name 1 IoCs
  • Reads CPU attributes 1 TTPs 1 IoCs
  • Enumerates kernel/hardware configuration 1 TTPs 16 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.

  • GoLang User-Agent 1 IoCs

    Uses default user-agent string defined by GoLang HTTP packages.

Processes

  • /tmp/linux_mips_softfloat.elf
    /tmp/linux_mips_softfloat.elf
    1⤵
    • Enumerates kernel/hardware configuration
    • System Network Configuration Discovery
    PID:711
    • /bin/sh
      sh -c "/etc/32678&"
      2⤵
        PID:724
        • /etc/32678
          /etc/32678
          3⤵
          • Executes dropped EXE
          PID:728
          • /bin/sleep
            sleep 60
            4⤵
              PID:740
            • /etc/id.services.conf
              /etc/id.services.conf
              4⤵
              • Executes dropped EXE
              • Enumerates kernel/hardware configuration
              PID:788
              • /usr/bin/pkill
                pkill -9 32678
                5⤵
                • Reads CPU attributes
                • Reads runtime system information
                PID:793
              • /bin/sh
                sh -c "/etc/32678&"
                5⤵
                  PID:794
                • /usr/sbin/service
                  service crond start
                  5⤵
                    PID:795
                    • /usr/bin/basename
                      basename /usr/sbin/service
                      6⤵
                        PID:799
                      • /usr/bin/basename
                        basename /usr/sbin/service
                        6⤵
                          PID:804
                        • /bin/systemctl
                          systemctl --quiet is-active multi-user.target
                          6⤵
                          • Enumerates kernel/hardware configuration
                          • Reads runtime system information
                          PID:805
                        • /bin/systemctl
                          systemctl list-unit-files --full "--type=socket"
                          6⤵
                          • Enumerates kernel/hardware configuration
                          PID:807
                        • /bin/sed
                          sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
                          6⤵
                            PID:808
                        • /etc/id.services.conf
                          /etc/id.services.conf " "
                          5⤵
                          • Executes dropped EXE
                          • Enumerates kernel/hardware configuration
                          PID:796
                  • /usr/sbin/service
                    service crond start
                    2⤵
                      PID:726
                      • /usr/bin/basename
                        basename /usr/sbin/service
                        3⤵
                          PID:732
                        • /usr/bin/basename
                          basename /usr/sbin/service
                          3⤵
                            PID:742
                          • /bin/systemctl
                            systemctl --quiet is-active multi-user.target
                            3⤵
                            • Enumerates kernel/hardware configuration
                            • Reads runtime system information
                            PID:744
                          • /bin/systemctl
                            systemctl list-unit-files --full "--type=socket"
                            3⤵
                            • Enumerates kernel/hardware configuration
                            PID:749
                          • /bin/sed
                            sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
                            3⤵
                              PID:750
                          • /tmp/linux_mips_softfloat.elf
                            /tmp/linux_mips_softfloat.elf " "
                            2⤵
                            • Changes its process name
                            • Enumerates kernel/hardware configuration
                            • System Network Configuration Discovery
                            PID:727
                            • /usr/sbin/update-rc.d
                              update-rc.d linux_kill defaults
                              3⤵
                                PID:741
                                • /usr/local/sbin/systemctl
                                  systemctl daemon-reload
                                  4⤵
                                    PID:755
                                  • /usr/local/bin/systemctl
                                    systemctl daemon-reload
                                    4⤵
                                      PID:755
                                    • /usr/sbin/systemctl
                                      systemctl daemon-reload
                                      4⤵
                                        PID:755
                                      • /usr/bin/systemctl
                                        systemctl daemon-reload
                                        4⤵
                                          PID:755
                                        • /sbin/systemctl
                                          systemctl daemon-reload
                                          4⤵
                                            PID:755
                                          • /bin/systemctl
                                            systemctl daemon-reload
                                            4⤵
                                            • Enumerates kernel/hardware configuration
                                            • Reads runtime system information
                                            PID:755
                                        • /bin/bash
                                          bash -c "echo \"*/1 * * * * root /.img \" >> /etc/crontab"
                                          3⤵
                                          • Creates/modifies Cron job
                                          PID:761
                                        • /usr/bin/renice
                                          renice -20 727
                                          3⤵
                                            PID:763
                                          • /bin/mount
                                            mount -o bind /tmp/ /proc/727
                                            3⤵
                                            • Reads runtime system information
                                            PID:764
                                          • /usr/sbin/service
                                            service cron start
                                            3⤵
                                              PID:765
                                              • /usr/bin/basename
                                                basename /usr/sbin/service
                                                4⤵
                                                  PID:766
                                                • /usr/bin/basename
                                                  basename /usr/sbin/service
                                                  4⤵
                                                    PID:767
                                                  • /bin/systemctl
                                                    systemctl --quiet is-active multi-user.target
                                                    4⤵
                                                    • Enumerates kernel/hardware configuration
                                                    • Reads runtime system information
                                                    PID:768
                                                  • /bin/systemctl
                                                    systemctl list-unit-files --full "--type=socket"
                                                    4⤵
                                                    • Enumerates kernel/hardware configuration
                                                    • Reads runtime system information
                                                    PID:770
                                                  • /bin/sed
                                                    sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
                                                    4⤵
                                                      PID:771
                                                  • /usr/local/sbin/systemctl
                                                    systemctl "--job-mode=ignore-dependencies" start cron.service
                                                    3⤵
                                                      PID:765
                                                    • /usr/local/bin/systemctl
                                                      systemctl "--job-mode=ignore-dependencies" start cron.service
                                                      3⤵
                                                        PID:765
                                                      • /usr/sbin/systemctl
                                                        systemctl "--job-mode=ignore-dependencies" start cron.service
                                                        3⤵
                                                          PID:765
                                                        • /usr/bin/systemctl
                                                          systemctl "--job-mode=ignore-dependencies" start cron.service
                                                          3⤵
                                                            PID:765
                                                          • /sbin/systemctl
                                                            systemctl "--job-mode=ignore-dependencies" start cron.service
                                                            3⤵
                                                              PID:765
                                                            • /bin/systemctl
                                                              systemctl "--job-mode=ignore-dependencies" start cron.service
                                                              3⤵
                                                              • Enumerates kernel/hardware configuration
                                                              • Reads runtime system information
                                                              PID:765
                                                            • /bin/systemctl
                                                              systemctl start crond.service
                                                              3⤵
                                                              • Enumerates kernel/hardware configuration
                                                              • Reads runtime system information
                                                              PID:772
                                                        • /usr/local/sbin/systemctl
                                                          systemctl "--job-mode=ignore-dependencies" start crond.service
                                                          1⤵
                                                            PID:726
                                                          • /usr/local/bin/systemctl
                                                            systemctl "--job-mode=ignore-dependencies" start crond.service
                                                            1⤵
                                                              PID:726
                                                            • /usr/sbin/systemctl
                                                              systemctl "--job-mode=ignore-dependencies" start crond.service
                                                              1⤵
                                                                PID:726
                                                              • /usr/bin/systemctl
                                                                systemctl "--job-mode=ignore-dependencies" start crond.service
                                                                1⤵
                                                                  PID:726
                                                                • /sbin/systemctl
                                                                  systemctl "--job-mode=ignore-dependencies" start crond.service
                                                                  1⤵
                                                                    PID:726
                                                                  • /bin/systemctl
                                                                    systemctl "--job-mode=ignore-dependencies" start crond.service
                                                                    1⤵
                                                                    • Enumerates kernel/hardware configuration
                                                                    • Reads runtime system information
                                                                    PID:726
                                                                  • /etc/32678
                                                                    /etc/32678
                                                                    1⤵
                                                                    • Executes dropped EXE
                                                                    PID:797
                                                                    • /bin/sleep
                                                                      sleep 60
                                                                      2⤵
                                                                        PID:803
                                                                      • /etc/id.services.conf
                                                                        /etc/id.services.conf
                                                                        2⤵
                                                                        • Executes dropped EXE
                                                                        • Enumerates kernel/hardware configuration
                                                                        PID:813
                                                                    • /usr/local/sbin/systemctl
                                                                      systemctl "--job-mode=ignore-dependencies" start crond.service
                                                                      1⤵
                                                                        PID:795
                                                                      • /usr/local/bin/systemctl
                                                                        systemctl "--job-mode=ignore-dependencies" start crond.service
                                                                        1⤵
                                                                          PID:795
                                                                        • /usr/sbin/systemctl
                                                                          systemctl "--job-mode=ignore-dependencies" start crond.service
                                                                          1⤵
                                                                            PID:795
                                                                          • /usr/bin/systemctl
                                                                            systemctl "--job-mode=ignore-dependencies" start crond.service
                                                                            1⤵
                                                                              PID:795
                                                                            • /sbin/systemctl
                                                                              systemctl "--job-mode=ignore-dependencies" start crond.service
                                                                              1⤵
                                                                                PID:795
                                                                              • /bin/systemctl
                                                                                systemctl "--job-mode=ignore-dependencies" start crond.service
                                                                                1⤵
                                                                                • Enumerates kernel/hardware configuration
                                                                                • Reads runtime system information
                                                                                PID:795

                                                                              Network

                                                                              MITRE ATT&CK Enterprise v15

                                                                              Replay Monitor

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                                                                              Downloads

                                                                              • /.img

                                                                                Filesize

                                                                                33B

                                                                                MD5

                                                                                d73d3376908ea075a939e3871ad0fabe

                                                                                SHA1

                                                                                320ff65831247ba199515f1b94df26cc8a3e5f76

                                                                                SHA256

                                                                                edbdabe30d8236a2c0a4eb89dfd597552130e4c1a4e93f8fe1568920442ad73a

                                                                                SHA512

                                                                                57b83fef88620598beb5d65626bf757d0abef242d2d6a01796a61474dedc5095a4a9d0f292b6abb450cad3d4410ab8456253600f58ddb66cfe6d79e1c8415536

                                                                              • /etc/32678

                                                                                Filesize

                                                                                61B

                                                                                MD5

                                                                                768eaf287796da19e1cf5e0b2fb1b161

                                                                                SHA1

                                                                                6a1ce2ee5ccc86d1f33806feb14547b35290df2a

                                                                                SHA256

                                                                                1d22620dfb2a6715e5d745aed5cf841ede0e75e1747f12b9b925a2d346bc7ecb

                                                                                SHA512

                                                                                e6af30c9df4f7f47696069511e64ecbc8e841629d692ee4056503df3533fb7a7a74960698826260355e1dba7b6c562482a27a39bb51a4237473ce4b68472d620

                                                                              • /etc/id.services.conf

                                                                                Filesize

                                                                                5.6MB

                                                                                MD5

                                                                                17fac7ffcec5df4d624a5e46c3ce97d1

                                                                                SHA1

                                                                                21c0af1bd2753963f2444b999d646a7ed6f02033

                                                                                SHA256

                                                                                85c0c57eed2a9c08b00919203227ba566a1239457b2edf88ea83d82b4b5e551e

                                                                                SHA512

                                                                                90026422a550a6f10b6a0b8dac521a2ce4a0f9575f5c177ebf70d71ad1a815aa0aebada2e188207b8dfb6ba10597c4d59c4ff037e7b766bb55144b9a0413bcde

                                                                              • /etc/init.d/linux_kill

                                                                                Filesize

                                                                                189B

                                                                                MD5

                                                                                3909975f7cc0d1121c1819b800069f31

                                                                                SHA1

                                                                                3e68de708c2e6c40fab6794afdee3104e5590189

                                                                                SHA256

                                                                                6876dac71f13a068afb863d257134275f2edba43b2acaf4924fabf97c079070b

                                                                                SHA512

                                                                                50600cceeb03b05f45ae61d890caee9f51ff390b6776930866e527e071d65d08241fc66673fd9b99d62fbc77d3c00fc3de4d7378cbc42f5daba5d83072b0906e

                                                                              • /etc/profile.d/bash_config.sh

                                                                                Filesize

                                                                                37B

                                                                                MD5

                                                                                cfb4e51061485fe91169381fbdc1538e

                                                                                SHA1

                                                                                9a85b9b766a15b01737a41d680e4593b7a9bde87

                                                                                SHA256

                                                                                897f37267d0ceaa2fbdaa09847f5d08e6f8b01a0348a0d666264b0f10acd0c90

                                                                                SHA512

                                                                                fb154ec711d2090a7461da4db8ddad2b522649a27e74162ecb203f539b1729430288bc02d78d2071bde9c4bbc005693403a57612ef50277d52f816cb94524216