Analysis

  • max time kernel
    154s
  • max time network
    168s
  • platform
    debian-12_mipsel
  • resource
    debian12-mipsel-20240221-en
  • resource tags

    arch:mipselimage:debian12-mipsel-20240221-enkernel:6.1.0-17-4kc-maltalocale:en-usos:debian-12-mipselsystem
  • submitted
    05-11-2024 03:23

General

  • Target

    63e389a3d5251cbeaaab08d5d0cad2b49226eb0764652c64d3f663f7ad8a393f.elf

  • Size

    5.6MB

  • MD5

    a588866d01919ba373464c54536b57a8

  • SHA1

    1bff6f7edc7522ad35563b7998cb85bf7df09baf

  • SHA256

    63e389a3d5251cbeaaab08d5d0cad2b49226eb0764652c64d3f663f7ad8a393f

  • SHA512

    f9743b778aa1fc11b7b95939ab613335b40c5cfbd45f640811af0cc55d22f18bb0a9f90fddbfc91efbfd4b67803d143962cd1a578b59fb0b827d68b405c06cfc

  • SSDEEP

    98304:yC91hAFxvW6WGVqq7g3JDCg76dAuE8iW5ay5mIOX+aaNcc8pNkxXkz8xBs3K4HUj:yC91hAFxvW6WGVqq7g3JDCg76dAuE8iQ

Malware Config

Signatures

  • Executes dropped EXE 5 IoCs
  • Modifies Watchdog functionality 1 TTPs 2 IoCs

    Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Modifies init.d 2 TTPs 1 IoCs

    Adds/modifies system service, likely for persistence.

  • Modifies systemd 2 TTPs 1 IoCs

    Adds/ modifies systemd service files. Likely to achieve persistence.

  • Reads CPU attributes 1 TTPs 1 IoCs
  • Enumerates kernel/hardware configuration 1 TTPs 6 IoCs

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

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • GoLang User-Agent 1 IoCs

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

Processes

  • /tmp/63e389a3d5251cbeaaab08d5d0cad2b49226eb0764652c64d3f663f7ad8a393f.elf
    /tmp/63e389a3d5251cbeaaab08d5d0cad2b49226eb0764652c64d3f663f7ad8a393f.elf
    1⤵
    • Enumerates kernel/hardware configuration
    PID:741
    • /usr/bin/sh
      sh -c "/etc/32678&"
      2⤵
        PID:763
      • /usr/sbin/service
        service crond start
        2⤵
          PID:764
          • /usr/bin/basename
            basename /usr/sbin/service
            3⤵
              PID:768
            • /usr/bin/basename
              basename /usr/sbin/service
              3⤵
                PID:776
              • /usr/bin/systemctl
                systemctl list-unit-files --full "--type=socket"
                3⤵
                  PID:779
                • /usr/bin/sed
                  sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
                  3⤵
                    PID:780
                • /tmp/63e389a3d5251cbeaaab08d5d0cad2b49226eb0764652c64d3f663f7ad8a393f.elf
                  /tmp/63e389a3d5251cbeaaab08d5d0cad2b49226eb0764652c64d3f663f7ad8a393f.elf " "
                  2⤵
                  • Modifies Watchdog functionality
                  • Modifies init.d
                  • Modifies systemd
                  • Enumerates kernel/hardware configuration
                  • Reads runtime system information
                  PID:766
                  • /usr/sbin/update-rc.d
                    update-rc.d linux_kill defaults
                    3⤵
                      PID:789
                      • /usr/local/sbin/systemctl
                        systemctl daemon-reload
                        4⤵
                          PID:803
                        • /usr/local/bin/systemctl
                          systemctl daemon-reload
                          4⤵
                            PID:803
                          • /usr/sbin/systemctl
                            systemctl daemon-reload
                            4⤵
                              PID:803
                            • /usr/bin/systemctl
                              systemctl daemon-reload
                              4⤵
                                PID:803
                            • /usr/bin/sh
                              sh -c "cd /boot;systemctl daemon-reload;systemctl enable linux.service;systemctl start linux.service;journalctl -xe --no-pager"
                              3⤵
                                PID:830
                                • /usr/bin/systemctl
                                  systemctl daemon-reload
                                  4⤵
                                    PID:831
                                  • /usr/bin/systemctl
                                    systemctl enable linux.service
                                    4⤵
                                    • Reads runtime system information
                                    PID:862
                            • /etc/32678
                              /etc/32678
                              1⤵
                              • Executes dropped EXE
                              PID:767
                              • /usr/bin/sleep
                                sleep 60
                                2⤵
                                  PID:774
                                • /etc/id.services.conf
                                  /etc/id.services.conf
                                  2⤵
                                  • Executes dropped EXE
                                  • Enumerates kernel/hardware configuration
                                  PID:825
                                  • /usr/bin/pkill
                                    pkill -9 32678
                                    3⤵
                                    • Reads CPU attributes
                                    • Enumerates kernel/hardware configuration
                                    • Reads runtime system information
                                    PID:829
                                  • /usr/bin/sh
                                    sh -c "/etc/32678&"
                                    3⤵
                                      PID:832
                                    • /usr/sbin/service
                                      service crond start
                                      3⤵
                                        PID:833
                                        • /usr/bin/basename
                                          basename /usr/sbin/service
                                          4⤵
                                            PID:836
                                          • /usr/bin/basename
                                            basename /usr/sbin/service
                                            4⤵
                                              PID:838
                                            • /usr/bin/systemctl
                                              systemctl list-unit-files --full "--type=socket"
                                              4⤵
                                                PID:842
                                              • /usr/bin/sed
                                                sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
                                                4⤵
                                                  PID:843
                                              • /etc/id.services.conf
                                                /etc/id.services.conf " "
                                                3⤵
                                                • Executes dropped EXE
                                                • Enumerates kernel/hardware configuration
                                                PID:834
                                          • /usr/local/sbin/systemctl
                                            systemctl start crond.service
                                            1⤵
                                              PID:764
                                            • /usr/local/bin/systemctl
                                              systemctl start crond.service
                                              1⤵
                                                PID:764
                                              • /usr/sbin/systemctl
                                                systemctl start crond.service
                                                1⤵
                                                  PID:764
                                                • /usr/bin/systemctl
                                                  systemctl start crond.service
                                                  1⤵
                                                    PID:764
                                                  • /etc/32678
                                                    /etc/32678
                                                    1⤵
                                                    • Executes dropped EXE
                                                    PID:835
                                                    • /usr/bin/sleep
                                                      sleep 60
                                                      2⤵
                                                        PID:837
                                                      • /etc/id.services.conf
                                                        /etc/id.services.conf
                                                        2⤵
                                                        • Executes dropped EXE
                                                        • Enumerates kernel/hardware configuration
                                                        PID:877
                                                    • /usr/local/sbin/systemctl
                                                      systemctl start crond.service
                                                      1⤵
                                                        PID:833
                                                      • /usr/local/bin/systemctl
                                                        systemctl start crond.service
                                                        1⤵
                                                          PID:833
                                                        • /usr/sbin/systemctl
                                                          systemctl start crond.service
                                                          1⤵
                                                            PID:833
                                                          • /usr/bin/systemctl
                                                            systemctl start crond.service
                                                            1⤵
                                                            • Reads runtime system information
                                                            PID:833

                                                          Network

                                                          MITRE ATT&CK Enterprise v15

                                                          Replay Monitor

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                                                          Downloads

                                                          • /etc/32678

                                                            Filesize

                                                            61B

                                                            MD5

                                                            768eaf287796da19e1cf5e0b2fb1b161

                                                            SHA1

                                                            6a1ce2ee5ccc86d1f33806feb14547b35290df2a

                                                            SHA256

                                                            1d22620dfb2a6715e5d745aed5cf841ede0e75e1747f12b9b925a2d346bc7ecb

                                                            SHA512

                                                            e6af30c9df4f7f47696069511e64ecbc8e841629d692ee4056503df3533fb7a7a74960698826260355e1dba7b6c562482a27a39bb51a4237473ce4b68472d620

                                                          • /etc/init.d/linux_kill

                                                            Filesize

                                                            189B

                                                            MD5

                                                            3909975f7cc0d1121c1819b800069f31

                                                            SHA1

                                                            3e68de708c2e6c40fab6794afdee3104e5590189

                                                            SHA256

                                                            6876dac71f13a068afb863d257134275f2edba43b2acaf4924fabf97c079070b

                                                            SHA512

                                                            50600cceeb03b05f45ae61d890caee9f51ff390b6776930866e527e071d65d08241fc66673fd9b99d62fbc77d3c00fc3de4d7378cbc42f5daba5d83072b0906e