Analysis

  • max time kernel
    153s
  • max time network
    165s
  • 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
    01-11-2024 05:19

General

  • Target

    be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf

  • Size

    5.6MB

  • MD5

    5f7d6a8f455e8f7c990ef1541efc6199

  • SHA1

    b25948840f5fa898cacc888074010bf77a8843cd

  • SHA256

    be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41

  • SHA512

    ae3b3a70f9c1e5de164b534393e5cea48258a8c5ef43a0b9f22bb6caff483d6b2a0dfdfe933fc7a7e8ec15209994809aa620326d8b6bb30ea98ccf93bccd1079

  • SSDEEP

    98304:yC91hAFxvW6WGVqq7g3JDCg76dAuE8iW5ay5mIOX+aaNcc8pNkxXkz8xBs3K4HUO:yC91hAFxvW6WGVqq7g3JDCg76dAuE8ip

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/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf
    /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf
    1⤵
    • Enumerates kernel/hardware configuration
    PID:742
    • /usr/bin/sh
      sh -c "/etc/32678&"
      2⤵
        PID:766
      • /usr/sbin/service
        service crond start
        2⤵
          PID:767
          • /usr/bin/basename
            basename /usr/sbin/service
            3⤵
              PID:772
            • /usr/bin/basename
              basename /usr/sbin/service
              3⤵
                PID:779
              • /usr/bin/systemctl
                systemctl list-unit-files --full "--type=socket"
                3⤵
                  PID:782
                • /usr/bin/sed
                  sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
                  3⤵
                    PID:783
                • /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf
                  /tmp/be95b29da48e169996c492b3c95f55c8af679136df3adaabd24a5d67d3c2af41.elf " "
                  2⤵
                  • Modifies Watchdog functionality
                  • Modifies init.d
                  • Modifies systemd
                  • Enumerates kernel/hardware configuration
                  • Reads runtime system information
                  PID:768
                  • /usr/sbin/update-rc.d
                    update-rc.d linux_kill defaults
                    3⤵
                      PID:793
                      • /usr/local/sbin/systemctl
                        systemctl daemon-reload
                        4⤵
                          PID:804
                        • /usr/local/bin/systemctl
                          systemctl daemon-reload
                          4⤵
                            PID:804
                          • /usr/sbin/systemctl
                            systemctl daemon-reload
                            4⤵
                              PID:804
                            • /usr/bin/systemctl
                              systemctl daemon-reload
                              4⤵
                                PID:804
                            • /usr/bin/sh
                              sh -c "cd /boot;systemctl daemon-reload;systemctl enable linux.service;systemctl start linux.service;journalctl -xe --no-pager"
                              3⤵
                                PID:835
                                • /usr/bin/systemctl
                                  systemctl daemon-reload
                                  4⤵
                                    PID:836
                                  • /usr/bin/systemctl
                                    systemctl enable linux.service
                                    4⤵
                                      PID:865
                              • /etc/32678
                                /etc/32678
                                1⤵
                                • Executes dropped EXE
                                PID:771
                                • /usr/bin/sleep
                                  sleep 60
                                  2⤵
                                    PID:776
                                  • /etc/id.services.conf
                                    /etc/id.services.conf
                                    2⤵
                                    • Executes dropped EXE
                                    • Enumerates kernel/hardware configuration
                                    PID:831
                                    • /usr/bin/pkill
                                      pkill -9 32678
                                      3⤵
                                      • Reads CPU attributes
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:837
                                    • /usr/bin/sh
                                      sh -c "/etc/32678&"
                                      3⤵
                                        PID:838
                                      • /usr/sbin/service
                                        service crond start
                                        3⤵
                                          PID:839
                                          • /usr/bin/basename
                                            basename /usr/sbin/service
                                            4⤵
                                              PID:842
                                            • /usr/bin/basename
                                              basename /usr/sbin/service
                                              4⤵
                                                PID:859
                                              • /usr/bin/systemctl
                                                systemctl list-unit-files --full "--type=socket"
                                                4⤵
                                                  PID:861
                                                • /usr/bin/sed
                                                  sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
                                                  4⤵
                                                    PID:862
                                                • /etc/id.services.conf
                                                  /etc/id.services.conf " "
                                                  3⤵
                                                  • Executes dropped EXE
                                                  • Enumerates kernel/hardware configuration
                                                  PID:840
                                            • /usr/local/sbin/systemctl
                                              systemctl start crond.service
                                              1⤵
                                                PID:767
                                              • /usr/local/bin/systemctl
                                                systemctl start crond.service
                                                1⤵
                                                  PID:767
                                                • /usr/sbin/systemctl
                                                  systemctl start crond.service
                                                  1⤵
                                                    PID:767
                                                  • /usr/bin/systemctl
                                                    systemctl start crond.service
                                                    1⤵
                                                      PID:767
                                                    • /etc/32678
                                                      /etc/32678
                                                      1⤵
                                                      • Executes dropped EXE
                                                      PID:841
                                                      • /usr/bin/sleep
                                                        sleep 60
                                                        2⤵
                                                          PID:857
                                                        • /etc/id.services.conf
                                                          /etc/id.services.conf
                                                          2⤵
                                                          • Executes dropped EXE
                                                          • Enumerates kernel/hardware configuration
                                                          PID:881
                                                      • /usr/local/sbin/systemctl
                                                        systemctl start crond.service
                                                        1⤵
                                                          PID:839
                                                        • /usr/local/bin/systemctl
                                                          systemctl start crond.service
                                                          1⤵
                                                            PID:839
                                                          • /usr/sbin/systemctl
                                                            systemctl start crond.service
                                                            1⤵
                                                              PID:839
                                                            • /usr/bin/systemctl
                                                              systemctl start crond.service
                                                              1⤵
                                                                PID:839

                                                              Network

                                                              MITRE ATT&CK Enterprise v15

                                                              Replay Monitor

                                                              Loading Replay Monitor...

                                                              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