Analysis

  • max time kernel
    124s
  • max time network
    155s
  • platform
    debian-9_mipsel
  • resource
    debian9-mipsel-20240226-en
  • resource tags

    arch:mipselimage:debian9-mipsel-20240226-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem
  • submitted
    21/03/2025, 02:16

General

  • Target

    1ab8a8d49e1854d00ab7b67267eb40c4f96bfbfb5dd80dbed89c0fea0cd226fb.elf

  • Size

    5.6MB

  • MD5

    1bc524efea7982b3b6c8fca7c30286ec

  • SHA1

    83021a81635d966164f19c8bfad1aeafd22f406b

  • SHA256

    1ab8a8d49e1854d00ab7b67267eb40c4f96bfbfb5dd80dbed89c0fea0cd226fb

  • SHA512

    4f5dd02820a316ab77dfb69d42265d4398af846f9b59c64e46de57c9bf05fd8a94208027008e1367641d052321de17c8e6874c722f24aa0e5db84443cd35fe4f

  • SSDEEP

    49152:+RxVVRFMTwGupkYzfgh7rxQ2USaU85Jbq1rQcR6VYv0VF1:

Malware Config

Signatures

  • Kaiji 1 IoCs

    Kaiji payload

  • Kaiji family
  • kaiji_chaosbot 1 IoCs

    Chaos-variant payload

  • Executes dropped EXE 4 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 51 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/1ab8a8d49e1854d00ab7b67267eb40c4f96bfbfb5dd80dbed89c0fea0cd226fb.elf
    /tmp/1ab8a8d49e1854d00ab7b67267eb40c4f96bfbfb5dd80dbed89c0fea0cd226fb.elf
    1⤵
    • Enumerates kernel/hardware configuration
    PID:697
    • /bin/sh
      sh -c "/etc/32678&"
      2⤵
      • Executes dropped EXE
      PID:713
    • /usr/sbin/service
      service crond start
      2⤵
        PID:714
        • /usr/bin/basename
          basename /usr/sbin/service
          3⤵
            PID:721
          • /usr/bin/basename
            basename /usr/sbin/service
            3⤵
              PID:729
            • /bin/systemctl
              systemctl --quiet is-active multi-user.target
              3⤵
              • Enumerates kernel/hardware configuration
              • Reads runtime system information
              PID:732
            • /bin/systemctl
              systemctl list-unit-files --full "--type=socket"
              3⤵
              • Enumerates kernel/hardware configuration
              • Reads runtime system information
              PID:737
            • /bin/sed
              sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
              3⤵
              • Reads runtime system information
              PID:738
            • /bin/systemctl
              systemctl -p Triggers show dbus.socket
              3⤵
              • Enumerates kernel/hardware configuration
              PID:741
            • /bin/systemctl
              systemctl -p Triggers show ssh.socket
              3⤵
              • Enumerates kernel/hardware configuration
              • Reads runtime system information
              PID:745
            • /bin/systemctl
              systemctl -p Triggers show syslog.socket
              3⤵
              • Enumerates kernel/hardware configuration
              • Reads runtime system information
              PID:763
            • /bin/systemctl
              systemctl -p Triggers show systemd-fsckd.socket
              3⤵
              • Enumerates kernel/hardware configuration
              • Reads runtime system information
              PID:764
            • /bin/systemctl
              systemctl -p Triggers show systemd-initctl.socket
              3⤵
              • Enumerates kernel/hardware configuration
              • Reads runtime system information
              PID:765
            • /bin/systemctl
              systemctl -p Triggers show systemd-journald-audit.socket
              3⤵
              • Enumerates kernel/hardware configuration
              PID:767
            • /bin/systemctl
              systemctl -p Triggers show systemd-journald-dev-log.socket
              3⤵
              • Enumerates kernel/hardware configuration
              PID:768
            • /bin/systemctl
              systemctl -p Triggers show systemd-journald.socket
              3⤵
              • Enumerates kernel/hardware configuration
              PID:770
            • /bin/systemctl
              systemctl -p Triggers show systemd-networkd.socket
              3⤵
              • Enumerates kernel/hardware configuration
              • Reads runtime system information
              PID:777
            • /bin/systemctl
              systemctl -p Triggers show systemd-rfkill.socket
              3⤵
              • Enumerates kernel/hardware configuration
              PID:778
            • /bin/systemctl
              systemctl -p Triggers show systemd-udevd-control.socket
              3⤵
              • Enumerates kernel/hardware configuration
              • Reads runtime system information
              PID:781
            • /bin/systemctl
              systemctl -p Triggers show systemd-udevd-kernel.socket
              3⤵
              • Enumerates kernel/hardware configuration
              PID:786
          • /tmp/1ab8a8d49e1854d00ab7b67267eb40c4f96bfbfb5dd80dbed89c0fea0cd226fb.elf
            /tmp/1ab8a8d49e1854d00ab7b67267eb40c4f96bfbfb5dd80dbed89c0fea0cd226fb.elf " "
            2⤵
            • Changes its process name
            • Enumerates kernel/hardware configuration
            PID:715
            • /usr/sbin/update-rc.d
              update-rc.d linux_kill defaults
              3⤵
                PID:727
                • /usr/local/sbin/systemctl
                  systemctl daemon-reload
                  4⤵
                    PID:743
                  • /usr/local/bin/systemctl
                    systemctl daemon-reload
                    4⤵
                      PID:743
                    • /usr/sbin/systemctl
                      systemctl daemon-reload
                      4⤵
                        PID:743
                      • /usr/bin/systemctl
                        systemctl daemon-reload
                        4⤵
                          PID:743
                        • /sbin/systemctl
                          systemctl daemon-reload
                          4⤵
                            PID:743
                          • /bin/systemctl
                            systemctl daemon-reload
                            4⤵
                            • Enumerates kernel/hardware configuration
                            PID:743
                        • /bin/bash
                          bash -c "echo \"*/1 * * * * root /.img \" >> /etc/crontab"
                          3⤵
                          • Creates/modifies Cron job
                          PID:766
                        • /usr/bin/renice
                          renice -20 715
                          3⤵
                            PID:779
                          • /bin/mount
                            mount -o bind /tmp/ /proc/715
                            3⤵
                            • Reads runtime system information
                            PID:780
                          • /usr/sbin/service
                            service cron start
                            3⤵
                              PID:783
                              • /usr/bin/basename
                                basename /usr/sbin/service
                                4⤵
                                  PID:784
                                • /usr/bin/basename
                                  basename /usr/sbin/service
                                  4⤵
                                    PID:785
                                  • /bin/systemctl
                                    systemctl --quiet is-active multi-user.target
                                    4⤵
                                    • Enumerates kernel/hardware configuration
                                    • Reads runtime system information
                                    PID:787
                                  • /bin/systemctl
                                    systemctl list-unit-files --full "--type=socket"
                                    4⤵
                                    • Enumerates kernel/hardware configuration
                                    • Reads runtime system information
                                    PID:789
                                  • /bin/sed
                                    sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
                                    4⤵
                                      PID:790
                                    • /bin/systemctl
                                      systemctl -p Triggers show dbus.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:792
                                    • /bin/systemctl
                                      systemctl -p Triggers show ssh.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:797
                                    • /bin/systemctl
                                      systemctl -p Triggers show syslog.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      PID:801
                                    • /bin/systemctl
                                      systemctl -p Triggers show systemd-fsckd.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:803
                                    • /bin/systemctl
                                      systemctl -p Triggers show systemd-initctl.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:805
                                    • /bin/systemctl
                                      systemctl -p Triggers show systemd-journald-audit.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:806
                                    • /bin/systemctl
                                      systemctl -p Triggers show systemd-journald-dev-log.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:808
                                    • /bin/systemctl
                                      systemctl -p Triggers show systemd-journald.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      PID:809
                                    • /bin/systemctl
                                      systemctl -p Triggers show systemd-networkd.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:811
                                    • /bin/systemctl
                                      systemctl -p Triggers show systemd-rfkill.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:815
                                    • /bin/systemctl
                                      systemctl -p Triggers show systemd-udevd-control.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:821
                                    • /bin/systemctl
                                      systemctl -p Triggers show systemd-udevd-kernel.socket
                                      4⤵
                                      • Enumerates kernel/hardware configuration
                                      • Reads runtime system information
                                      PID:828
                                  • /usr/local/sbin/systemctl
                                    systemctl start cron.service
                                    3⤵
                                      PID:783
                                    • /usr/local/bin/systemctl
                                      systemctl start cron.service
                                      3⤵
                                        PID:783
                                      • /usr/sbin/systemctl
                                        systemctl start cron.service
                                        3⤵
                                          PID:783
                                        • /usr/bin/systemctl
                                          systemctl start cron.service
                                          3⤵
                                            PID:783
                                          • /sbin/systemctl
                                            systemctl start cron.service
                                            3⤵
                                              PID:783
                                            • /bin/systemctl
                                              systemctl start cron.service
                                              3⤵
                                              • Enumerates kernel/hardware configuration
                                              PID:783
                                            • /bin/systemctl
                                              systemctl start crond.service
                                              3⤵
                                              • Enumerates kernel/hardware configuration
                                              • Reads runtime system information
                                              PID:833
                                        • /etc/32678
                                          /etc/32678
                                          1⤵
                                          • Executes dropped EXE
                                          PID:720
                                          • /bin/sleep
                                            sleep 60
                                            2⤵
                                              PID:728
                                            • /etc/id.services.conf
                                              /etc/id.services.conf
                                              2⤵
                                              • Executes dropped EXE
                                              • Enumerates kernel/hardware configuration
                                              PID:810
                                              • /usr/bin/pkill
                                                pkill -9 32678
                                                3⤵
                                                • Reads CPU attributes
                                                • Reads runtime system information
                                                PID:814
                                              • /bin/sh
                                                sh -c "/etc/32678&"
                                                3⤵
                                                • Executes dropped EXE
                                                PID:816
                                              • /usr/sbin/service
                                                service crond start
                                                3⤵
                                                  PID:817
                                                  • /usr/bin/basename
                                                    basename /usr/sbin/service
                                                    4⤵
                                                      PID:820
                                                    • /usr/bin/basename
                                                      basename /usr/sbin/service
                                                      4⤵
                                                        PID:826
                                                      • /bin/systemctl
                                                        systemctl --quiet is-active multi-user.target
                                                        4⤵
                                                        • Enumerates kernel/hardware configuration
                                                        • Reads runtime system information
                                                        PID:827
                                                      • /bin/systemctl
                                                        systemctl list-unit-files --full "--type=socket"
                                                        4⤵
                                                        • Enumerates kernel/hardware configuration
                                                        PID:830
                                                      • /bin/sed
                                                        sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
                                                        4⤵
                                                          PID:831
                                                        • /bin/systemctl
                                                          systemctl -p Triggers show dbus.socket
                                                          4⤵
                                                          • Enumerates kernel/hardware configuration
                                                          PID:832
                                                        • /bin/systemctl
                                                          systemctl -p Triggers show ssh.socket
                                                          4⤵
                                                          • Enumerates kernel/hardware configuration
                                                          PID:834
                                                        • /bin/systemctl
                                                          systemctl -p Triggers show syslog.socket
                                                          4⤵
                                                          • Enumerates kernel/hardware configuration
                                                          • Reads runtime system information
                                                          PID:835
                                                        • /bin/systemctl
                                                          systemctl -p Triggers show systemd-fsckd.socket
                                                          4⤵
                                                          • Enumerates kernel/hardware configuration
                                                          • Reads runtime system information
                                                          PID:836
                                                        • /bin/systemctl
                                                          systemctl -p Triggers show systemd-initctl.socket
                                                          4⤵
                                                          • Enumerates kernel/hardware configuration
                                                          • Reads runtime system information
                                                          PID:838
                                                        • /bin/systemctl
                                                          systemctl -p Triggers show systemd-journald-audit.socket
                                                          4⤵
                                                          • Enumerates kernel/hardware configuration
                                                          PID:839
                                                        • /bin/systemctl
                                                          systemctl -p Triggers show systemd-journald-dev-log.socket
                                                          4⤵
                                                          • Enumerates kernel/hardware configuration
                                                          • Reads runtime system information
                                                          PID:840
                                                        • /bin/systemctl
                                                          systemctl -p Triggers show systemd-journald.socket
                                                          4⤵
                                                          • Enumerates kernel/hardware configuration
                                                          • Reads runtime system information
                                                          PID:841
                                                        • /bin/systemctl
                                                          systemctl -p Triggers show systemd-networkd.socket
                                                          4⤵
                                                          • Enumerates kernel/hardware configuration
                                                          • Reads runtime system information
                                                          PID:842
                                                        • /bin/systemctl
                                                          systemctl -p Triggers show systemd-rfkill.socket
                                                          4⤵
                                                          • Enumerates kernel/hardware configuration
                                                          PID:843
                                                        • /bin/systemctl
                                                          systemctl -p Triggers show systemd-udevd-control.socket
                                                          4⤵
                                                          • Enumerates kernel/hardware configuration
                                                          PID:844
                                                        • /bin/systemctl
                                                          systemctl -p Triggers show systemd-udevd-kernel.socket
                                                          4⤵
                                                          • Enumerates kernel/hardware configuration
                                                          PID:845
                                                      • /etc/id.services.conf
                                                        /etc/id.services.conf " "
                                                        3⤵
                                                        • Enumerates kernel/hardware configuration
                                                        PID:818
                                                  • /usr/local/sbin/systemctl
                                                    systemctl start crond.service
                                                    1⤵
                                                      PID:714
                                                    • /usr/local/bin/systemctl
                                                      systemctl start crond.service
                                                      1⤵
                                                        PID:714
                                                      • /usr/sbin/systemctl
                                                        systemctl start crond.service
                                                        1⤵
                                                          PID:714
                                                        • /usr/bin/systemctl
                                                          systemctl start crond.service
                                                          1⤵
                                                            PID:714
                                                          • /sbin/systemctl
                                                            systemctl start crond.service
                                                            1⤵
                                                              PID:714
                                                            • /bin/systemctl
                                                              systemctl start crond.service
                                                              1⤵
                                                              • Enumerates kernel/hardware configuration
                                                              PID:714
                                                            • /etc/32678
                                                              /etc/32678
                                                              1⤵
                                                                PID:819
                                                                • /bin/sleep
                                                                  sleep 60
                                                                  2⤵
                                                                    PID:825
                                                                • /usr/local/sbin/systemctl
                                                                  systemctl start crond.service
                                                                  1⤵
                                                                    PID:817
                                                                  • /usr/local/bin/systemctl
                                                                    systemctl start crond.service
                                                                    1⤵
                                                                      PID:817
                                                                    • /usr/sbin/systemctl
                                                                      systemctl start crond.service
                                                                      1⤵
                                                                        PID:817
                                                                      • /usr/bin/systemctl
                                                                        systemctl start crond.service
                                                                        1⤵
                                                                          PID:817
                                                                        • /sbin/systemctl
                                                                          systemctl start crond.service
                                                                          1⤵
                                                                            PID:817
                                                                          • /bin/systemctl
                                                                            systemctl start crond.service
                                                                            1⤵
                                                                            • Enumerates kernel/hardware configuration
                                                                            • Reads runtime system information
                                                                            PID:817

                                                                          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

                                                                            1bc524efea7982b3b6c8fca7c30286ec

                                                                            SHA1

                                                                            83021a81635d966164f19c8bfad1aeafd22f406b

                                                                            SHA256

                                                                            1ab8a8d49e1854d00ab7b67267eb40c4f96bfbfb5dd80dbed89c0fea0cd226fb

                                                                            SHA512

                                                                            4f5dd02820a316ab77dfb69d42265d4398af846f9b59c64e46de57c9bf05fd8a94208027008e1367641d052321de17c8e6874c722f24aa0e5db84443cd35fe4f

                                                                          • /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