Analysis

  • max time kernel
    151s
  • max time network
    157s
  • 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 04:09

General

  • Target

    b0d15ae15ddea91eba49906e03e65787613fcad8b190190dfde9f3cf62ee2be3.elf

  • Size

    5.6MB

  • MD5

    367d36e768c7cb7d7945cdf3c7a76d37

  • SHA1

    80940b9725f9194cc347e5efe987673f40c229a4

  • SHA256

    b0d15ae15ddea91eba49906e03e65787613fcad8b190190dfde9f3cf62ee2be3

  • SHA512

    19b4dcfd599d5969fcf483628b56d395553777b3c3d6c0ed965c05752e4128bce8522a7aacfcd8459e9e992fa0a900c39c8d08fd860d360aec0138b217d0dfa5

  • SSDEEP

    49152:+RxVVRFMTwIupkYzfgh7rxQ2USaU85Jbq1rQcR6VYv0VF1:

Malware Config

Signatures

  • Executes dropped EXE 1 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.

  • Enumerates kernel/hardware configuration 1 TTPs 2 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/b0d15ae15ddea91eba49906e03e65787613fcad8b190190dfde9f3cf62ee2be3.elf
    /tmp/b0d15ae15ddea91eba49906e03e65787613fcad8b190190dfde9f3cf62ee2be3.elf
    1⤵
    • Enumerates kernel/hardware configuration
    PID:745
    • /usr/bin/sh
      sh -c "/etc/32678&"
      2⤵
        PID:765
      • /usr/sbin/service
        service crond start
        2⤵
          PID:766
          • /usr/bin/basename
            basename /usr/sbin/service
            3⤵
              PID:771
            • /usr/bin/basename
              basename /usr/sbin/service
              3⤵
                PID:778
              • /usr/bin/sed
                sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
                3⤵
                  PID:782
                • /usr/bin/systemctl
                  systemctl list-unit-files --full "--type=socket"
                  3⤵
                    PID:781
                • /tmp/b0d15ae15ddea91eba49906e03e65787613fcad8b190190dfde9f3cf62ee2be3.elf
                  /tmp/b0d15ae15ddea91eba49906e03e65787613fcad8b190190dfde9f3cf62ee2be3.elf " "
                  2⤵
                  • Modifies Watchdog functionality
                  • Modifies init.d
                  • Modifies systemd
                  • Enumerates kernel/hardware configuration
                  • Reads runtime system information
                  PID:767
                  • /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⤵
                              • Reads runtime system information
                              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:827
                              • /usr/bin/systemctl
                                systemctl daemon-reload
                                4⤵
                                • Reads runtime system information
                                PID:828
                              • /usr/bin/systemctl
                                systemctl enable linux.service
                                4⤵
                                  PID:846
                                • /usr/bin/systemctl
                                  systemctl start linux.service
                                  4⤵
                                  • Reads runtime system information
                                  PID:862
                                • /usr/bin/journalctl
                                  journalctl -xe --no-pager
                                  4⤵
                                  • Reads runtime system information
                                  PID:874
                              • /usr/bin/sh
                                sh -c "cd /boot;ausearch -c 'System.img.conf' --raw | audit2allow -M my-Systemimgconf;semodule -X 300 -i my-Systemimgconf.pp"
                                3⤵
                                  PID:880
                                  • /usr/sbin/ausearch
                                    ausearch -c System.img.conf --raw
                                    4⤵
                                    • Reads runtime system information
                                    PID:881
                                  • /usr/bin/audit2allow
                                    audit2allow -M my-Systemimgconf
                                    4⤵
                                      PID:882
                              • /etc/32678
                                /etc/32678
                                1⤵
                                • Executes dropped EXE
                                PID:770
                                • /usr/bin/sleep
                                  sleep 60
                                  2⤵
                                    PID:775
                                • /usr/local/sbin/systemctl
                                  systemctl start crond.service
                                  1⤵
                                    PID:766
                                  • /usr/local/bin/systemctl
                                    systemctl start crond.service
                                    1⤵
                                      PID:766
                                    • /usr/sbin/systemctl
                                      systemctl start crond.service
                                      1⤵
                                        PID:766
                                      • /usr/bin/systemctl
                                        systemctl start crond.service
                                        1⤵
                                        • Reads runtime system information
                                        PID:766

                                      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

                                      • /usr/lib/systemd/system/linux.service

                                        Filesize

                                        207B

                                        MD5

                                        d80ccc7ced99538f22336f2ec0249087

                                        SHA1

                                        be4de9f604e065b53076a3d7ba702fe98c6b8746

                                        SHA256

                                        0dc3e8552c3e6217e0dc7fd440c7ba4c9cd6e676ce2561e4f71949d2783ae968

                                        SHA512

                                        d798e6516571fcd03bdffbd5405f320fb23422ceb563901658efa4101b4568eabc27730f40c0bcf6dde5509f01ba6965dd61f64675dad695924f1dea1746e6de