Overview

overview

10

Static

static

10

c858f4e0ba...1f.elf

debian-9-mips

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • 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
    21/03/2025, 04:03

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General

  • Target

    c858f4e0ba6e6af00db0fdff7ddbf58a27d1c1ec57896367e52a1d0b5f09191f.elf

  • Size

    5.6MB

  • MD5

    fbf096212c93ddffb456ab302df8e786

  • SHA1

    2b56a586a7f0596121c70cbb413ea9011f318f88

  • SHA256

    c858f4e0ba6e6af00db0fdff7ddbf58a27d1c1ec57896367e52a1d0b5f09191f

  • SHA512

    bb9c41b580f886806e642e4633e7b357717a8960148c3be9fc87ab08e6a2f8f778402235d01032bc9d64ffbc7a9c32a7ea7c6d34fb0e9d574f81acf569b52bee

  • SSDEEP

    49152:L3qbSw1zUu72RTScFnsKbyRHzPDPs4coYtJkEk2wBIxWyDp/9zUH+zOuUx83ZIqG:jqO0o2jgDQ

Score
10/10
kaijidiscoveryexecutionpersistenceprivilege_escalation

Malware Config

Signatures

  • Kaiji 1 IoCs

    Kaiji payload

  • Kaiji family
    kaiji
  • kaiji_chaosbot 1 IoCs

    Chaos-variant payload

  • Executes dropped EXE 7 IoCs
  • Creates/modifies Cron job 1 TTPs 1 IoCs

    Cron allows running tasks on a schedule, and is commonly used for malware persistence.

    executionpersistenceprivilege_escalation
  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Changes its process name 1 IoCs
  • Reads CPU attributes 1 TTPs 2 IoCs
    discovery
  • Enumerates kernel/hardware configuration 1 TTPs 53 IoCs

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

    discovery
  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

    discovery
  • GoLang User-Agent 1 IoCs

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

Processes

  • /tmp/c858f4e0ba6e6af00db0fdff7ddbf58a27d1c1ec57896367e52a1d0b5f09191f.elf
    /tmp/c858f4e0ba6e6af00db0fdff7ddbf58a27d1c1ec57896367e52a1d0b5f09191f.elf
    1⤵
    • Enumerates kernel/hardware configuration
    PID:709
    • /bin/sh
      sh -c "/etc/32678&"
      2⤵
      • Executes dropped EXE
      PID:724
    • /usr/sbin/service
      service crond start
      2⤵
        PID:725
        • /usr/bin/basename
          basename /usr/sbin/service
          3⤵
            PID:732
          • /usr/bin/basename
            basename /usr/sbin/service
            3⤵
              PID:740
            • /bin/systemctl
              systemctl --quiet is-active multi-user.target
              3⤵
              • Enumerates kernel/hardware configuration
              PID:743
            • /bin/systemctl
              systemctl list-unit-files --full "--type=socket"
              3⤵
              • Enumerates kernel/hardware configuration
              • Reads runtime system information
              PID:748
            • /bin/sed
              sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
              3⤵
                PID:749
              • /bin/systemctl
                systemctl -p Triggers show dbus.socket
                3⤵
                • Enumerates kernel/hardware configuration
                PID:754
              • /bin/systemctl
                systemctl -p Triggers show ssh.socket
                3⤵
                • Enumerates kernel/hardware configuration
                PID:757
              • /bin/systemctl
                systemctl -p Triggers show syslog.socket
                3⤵
                • Enumerates kernel/hardware configuration
                PID:760
              • /bin/systemctl
                systemctl -p Triggers show systemd-fsckd.socket
                3⤵
                • Enumerates kernel/hardware configuration
                PID:778
              • /bin/systemctl
                systemctl -p Triggers show systemd-initctl.socket
                3⤵
                • Enumerates kernel/hardware configuration
                PID:779
              • /bin/systemctl
                systemctl -p Triggers show systemd-journald-audit.socket
                3⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:780
              • /bin/systemctl
                systemctl -p Triggers show systemd-journald-dev-log.socket
                3⤵
                • Enumerates kernel/hardware configuration
                PID:782
              • /bin/systemctl
                systemctl -p Triggers show systemd-journald.socket
                3⤵
                • Enumerates kernel/hardware configuration
                PID:783
              • /bin/systemctl
                systemctl -p Triggers show systemd-networkd.socket
                3⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:789
              • /bin/systemctl
                systemctl -p Triggers show systemd-rfkill.socket
                3⤵
                • Enumerates kernel/hardware configuration
                PID:794
              • /bin/systemctl
                systemctl -p Triggers show systemd-udevd-control.socket
                3⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:795
              • /bin/systemctl
                systemctl -p Triggers show systemd-udevd-kernel.socket
                3⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:798
            • /tmp/c858f4e0ba6e6af00db0fdff7ddbf58a27d1c1ec57896367e52a1d0b5f09191f.elf
              /tmp/c858f4e0ba6e6af00db0fdff7ddbf58a27d1c1ec57896367e52a1d0b5f09191f.elf " "
              2⤵
              • Changes its process name
              • Enumerates kernel/hardware configuration
              PID:727
              • /usr/sbin/update-rc.d
                update-rc.d linux_kill defaults
                3⤵
                  PID:739
                  • /usr/local/sbin/systemctl
                    systemctl daemon-reload
                    4⤵
                      PID:758
                    • /usr/local/bin/systemctl
                      systemctl daemon-reload
                      4⤵
                        PID:758
                      • /usr/sbin/systemctl
                        systemctl daemon-reload
                        4⤵
                          PID:758
                        • /usr/bin/systemctl
                          systemctl daemon-reload
                          4⤵
                            PID:758
                          • /sbin/systemctl
                            systemctl daemon-reload
                            4⤵
                              PID:758
                            • /bin/systemctl
                              systemctl daemon-reload
                              4⤵
                              • Enumerates kernel/hardware configuration
                              • Reads runtime system information
                              PID:758
                          • /bin/bash
                            bash -c "echo \"*/1 * * * * root /.img \" >> /etc/crontab"
                            3⤵
                            • Creates/modifies Cron job
                            PID:781
                          • /usr/bin/renice
                            renice -20 727
                            3⤵
                              PID:784
                            • /bin/mount
                              mount -o bind /tmp/ /proc/727
                              3⤵
                                PID:785
                              • /usr/sbin/service
                                service cron start
                                3⤵
                                  PID:786
                                  • /usr/bin/basename
                                    basename /usr/sbin/service
                                    4⤵
                                      PID:787
                                    • /usr/bin/basename
                                      basename /usr/sbin/service
                                      4⤵
                                        PID:788
                                      • /bin/systemctl
                                        systemctl --quiet is-active multi-user.target
                                        4⤵
                                        • Enumerates kernel/hardware configuration
                                        PID:790
                                      • /bin/systemctl
                                        systemctl list-unit-files --full "--type=socket"
                                        4⤵
                                        • Enumerates kernel/hardware configuration
                                        • Reads runtime system information
                                        PID:792
                                      • /bin/sed
                                        sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
                                        4⤵
                                          PID:793
                                        • /bin/systemctl
                                          systemctl -p Triggers show dbus.socket
                                          4⤵
                                          • Enumerates kernel/hardware configuration
                                          • Reads runtime system information
                                          PID:797
                                        • /bin/systemctl
                                          systemctl -p Triggers show ssh.socket
                                          4⤵
                                          • Enumerates kernel/hardware configuration
                                          PID:799
                                        • /bin/systemctl
                                          systemctl -p Triggers show syslog.socket
                                          4⤵
                                          • Enumerates kernel/hardware configuration
                                          • Reads runtime system information
                                          PID:800
                                        • /bin/systemctl
                                          systemctl -p Triggers show systemd-fsckd.socket
                                          4⤵
                                          • Enumerates kernel/hardware configuration
                                          • Reads runtime system information
                                          PID:801
                                        • /bin/systemctl
                                          systemctl -p Triggers show systemd-initctl.socket
                                          4⤵
                                          • Enumerates kernel/hardware configuration
                                          • Reads runtime system information
                                          PID:802
                                        • /bin/systemctl
                                          systemctl -p Triggers show systemd-journald-audit.socket
                                          4⤵
                                          • Enumerates kernel/hardware configuration
                                          • Reads runtime system information
                                          PID:803
                                        • /bin/systemctl
                                          systemctl -p Triggers show systemd-journald-dev-log.socket
                                          4⤵
                                          • Enumerates kernel/hardware configuration
                                          • Reads runtime system information
                                          PID:804
                                        • /bin/systemctl
                                          systemctl -p Triggers show systemd-journald.socket
                                          4⤵
                                          • Enumerates kernel/hardware configuration
                                          • Reads runtime system information
                                          PID:805
                                        • /bin/systemctl
                                          systemctl -p Triggers show systemd-networkd.socket
                                          4⤵
                                          • Enumerates kernel/hardware configuration
                                          PID:806
                                        • /bin/systemctl
                                          systemctl -p Triggers show systemd-rfkill.socket
                                          4⤵
                                          • Enumerates kernel/hardware configuration
                                          PID:807
                                        • /bin/systemctl
                                          systemctl -p Triggers show systemd-udevd-control.socket
                                          4⤵
                                          • Enumerates kernel/hardware configuration
                                          PID:808
                                        • /bin/systemctl
                                          systemctl -p Triggers show systemd-udevd-kernel.socket
                                          4⤵
                                          • Enumerates kernel/hardware configuration
                                          PID:809
                                      • /usr/local/sbin/systemctl
                                        systemctl start cron.service
                                        3⤵
                                          PID:786
                                        • /usr/local/bin/systemctl
                                          systemctl start cron.service
                                          3⤵
                                            PID:786
                                          • /usr/sbin/systemctl
                                            systemctl start cron.service
                                            3⤵
                                              PID:786
                                            • /usr/bin/systemctl
                                              systemctl start cron.service
                                              3⤵
                                                PID:786
                                              • /sbin/systemctl
                                                systemctl start cron.service
                                                3⤵
                                                  PID:786
                                                • /bin/systemctl
                                                  systemctl start cron.service
                                                  3⤵
                                                  • Enumerates kernel/hardware configuration
                                                  PID:786
                                                • /bin/systemctl
                                                  systemctl start crond.service
                                                  3⤵
                                                  • Enumerates kernel/hardware configuration
                                                  PID:812
                                            • /etc/32678
                                              /etc/32678
                                              1⤵
                                              • Executes dropped EXE
                                              PID:728
                                              • /bin/sleep
                                                sleep 60
                                                2⤵
                                                  PID:737
                                                • /etc/id.services.conf
                                                  /etc/id.services.conf
                                                  2⤵
                                                  • Executes dropped EXE
                                                  • Enumerates kernel/hardware configuration
                                                  PID:859
                                                  • /usr/bin/pkill
                                                    pkill -9 32678
                                                    3⤵
                                                    • Reads CPU attributes
                                                    • Reads runtime system information
                                                    PID:863
                                                  • /bin/sh
                                                    sh -c "/etc/32678&"
                                                    3⤵
                                                    • Executes dropped EXE
                                                    PID:864
                                                  • /usr/sbin/service
                                                    service crond start
                                                    3⤵
                                                      PID:865
                                                      • /usr/bin/basename
                                                        basename /usr/sbin/service
                                                        4⤵
                                                          PID:868
                                                        • /usr/bin/basename
                                                          basename /usr/sbin/service
                                                          4⤵
                                                            PID:873
                                                          • /bin/systemctl
                                                            systemctl --quiet is-active multi-user.target
                                                            4⤵
                                                            • Enumerates kernel/hardware configuration
                                                            PID:874
                                                          • /bin/systemctl
                                                            systemctl list-unit-files --full "--type=socket"
                                                            4⤵
                                                            • Enumerates kernel/hardware configuration
                                                            • Reads runtime system information
                                                            PID:876
                                                          • /bin/sed
                                                            sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
                                                            4⤵
                                                            • Reads runtime system information
                                                            PID:877
                                                          • /bin/systemctl
                                                            systemctl -p Triggers show dbus.socket
                                                            4⤵
                                                            • Enumerates kernel/hardware configuration
                                                            PID:879
                                                          • /bin/systemctl
                                                            systemctl -p Triggers show ssh.socket
                                                            4⤵
                                                            • Enumerates kernel/hardware configuration
                                                            PID:880
                                                          • /bin/systemctl
                                                            systemctl -p Triggers show syslog.socket
                                                            4⤵
                                                            • Enumerates kernel/hardware configuration
                                                            PID:882
                                                          • /bin/systemctl
                                                            systemctl -p Triggers show systemd-fsckd.socket
                                                            4⤵
                                                            • Enumerates kernel/hardware configuration
                                                            • Reads runtime system information
                                                            PID:883
                                                          • /bin/systemctl
                                                            systemctl -p Triggers show systemd-initctl.socket
                                                            4⤵
                                                            • Enumerates kernel/hardware configuration
                                                            PID:884
                                                          • /bin/systemctl
                                                            systemctl -p Triggers show systemd-journald-audit.socket
                                                            4⤵
                                                            • Enumerates kernel/hardware configuration
                                                            PID:885
                                                          • /bin/systemctl
                                                            systemctl -p Triggers show systemd-journald-dev-log.socket
                                                            4⤵
                                                            • Enumerates kernel/hardware configuration
                                                            PID:886
                                                          • /bin/systemctl
                                                            systemctl -p Triggers show systemd-journald.socket
                                                            4⤵
                                                            • Enumerates kernel/hardware configuration
                                                            • Reads runtime system information
                                                            PID:887
                                                          • /bin/systemctl
                                                            systemctl -p Triggers show systemd-networkd.socket
                                                            4⤵
                                                            • Enumerates kernel/hardware configuration
                                                            PID:888
                                                          • /bin/systemctl
                                                            systemctl -p Triggers show systemd-rfkill.socket
                                                            4⤵
                                                            • Enumerates kernel/hardware configuration
                                                            PID:889
                                                          • /bin/systemctl
                                                            systemctl -p Triggers show systemd-udevd-control.socket
                                                            4⤵
                                                            • Enumerates kernel/hardware configuration
                                                            • Reads runtime system information
                                                            PID:890
                                                          • /bin/systemctl
                                                            systemctl -p Triggers show systemd-udevd-kernel.socket
                                                            4⤵
                                                            • Enumerates kernel/hardware configuration
                                                            • Reads runtime system information
                                                            PID:891
                                                        • /etc/id.services.conf
                                                          /etc/id.services.conf " "
                                                          3⤵
                                                          • Enumerates kernel/hardware configuration
                                                          PID:866
                                                    • /usr/local/sbin/systemctl
                                                      systemctl start crond.service
                                                      1⤵
                                                        PID:725
                                                      • /usr/local/bin/systemctl
                                                        systemctl start crond.service
                                                        1⤵
                                                          PID:725
                                                        • /usr/sbin/systemctl
                                                          systemctl start crond.service
                                                          1⤵
                                                            PID:725
                                                          • /usr/bin/systemctl
                                                            systemctl start crond.service
                                                            1⤵
                                                              PID:725
                                                            • /sbin/systemctl
                                                              systemctl start crond.service
                                                              1⤵
                                                                PID:725
                                                              • /bin/systemctl
                                                                systemctl start crond.service
                                                                1⤵
                                                                • Enumerates kernel/hardware configuration
                                                                • Reads runtime system information
                                                                PID:725
                                                              • /etc/32678
                                                                /etc/32678
                                                                1⤵
                                                                • Executes dropped EXE
                                                                PID:867
                                                                • /bin/sleep
                                                                  sleep 60
                                                                  2⤵
                                                                    PID:872
                                                                  • /etc/id.services.conf
                                                                    /etc/id.services.conf
                                                                    2⤵
                                                                    • Executes dropped EXE
                                                                    • Enumerates kernel/hardware configuration
                                                                    PID:898
                                                                    • /usr/bin/pkill
                                                                      pkill -9 32678
                                                                      3⤵
                                                                      • Reads CPU attributes
                                                                      • Reads runtime system information
                                                                      PID:902
                                                                    • /bin/sh
                                                                      sh -c "/etc/32678&"
                                                                      3⤵
                                                                      • Executes dropped EXE
                                                                      PID:903
                                                                    • /usr/sbin/service
                                                                      service crond start
                                                                      3⤵
                                                                        PID:904
                                                                        • /usr/bin/basename
                                                                          basename /usr/sbin/service
                                                                          4⤵
                                                                            PID:910
                                                                          • /usr/bin/basename
                                                                            basename /usr/sbin/service
                                                                            4⤵
                                                                              PID:912
                                                                          • /etc/id.services.conf
                                                                            /etc/id.services.conf " "
                                                                            3⤵
                                                                            • Enumerates kernel/hardware configuration
                                                                            PID:905
                                                                      • /usr/local/sbin/systemctl
                                                                        systemctl start crond.service
                                                                        1⤵
                                                                          PID:865
                                                                        • /usr/local/bin/systemctl
                                                                          systemctl start crond.service
                                                                          1⤵
                                                                            PID:865
                                                                          • /usr/sbin/systemctl
                                                                            systemctl start crond.service
                                                                            1⤵
                                                                              PID:865
                                                                            • /usr/bin/systemctl
                                                                              systemctl start crond.service
                                                                              1⤵
                                                                                PID:865
                                                                              • /sbin/systemctl
                                                                                systemctl start crond.service
                                                                                1⤵
                                                                                  PID:865
                                                                                • /bin/systemctl
                                                                                  systemctl start crond.service
                                                                                  1⤵
                                                                                  • Enumerates kernel/hardware configuration
                                                                                  PID:865
                                                                                • /etc/32678
                                                                                  /etc/32678
                                                                                  1⤵
                                                                                    PID:906
                                                                                    • /bin/sleep
                                                                                      sleep 60
                                                                                      2⤵
                                                                                        PID:911

                                                                                    Network

                                                                                    MITRE ATT&CK Enterprise v15

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                                                                                    Downloads

                                                                                    • /.img
                                                                                      Filesize

                                                                                      33B

                                                                                      MD5

                                                                                      d73d3376908ea075a939e3871ad0fabe

                                                                                      SHA1

                                                                                      320ff65831247ba199515f1b94df26cc8a3e5f76

                                                                                      SHA256

                                                                                      edbdabe30d8236a2c0a4eb89dfd597552130e4c1a4e93f8fe1568920442ad73a

                                                                                      SHA512

                                                                                      57b83fef88620598beb5d65626bf757d0abef242d2d6a01796a61474dedc5095a4a9d0f292b6abb450cad3d4410ab8456253600f58ddb66cfe6d79e1c8415536

                                                                                      Download Submit

                                                                                    • /etc/32678
                                                                                      Filesize

                                                                                      61B

                                                                                      MD5

                                                                                      768eaf287796da19e1cf5e0b2fb1b161

                                                                                      SHA1

                                                                                      6a1ce2ee5ccc86d1f33806feb14547b35290df2a

                                                                                      SHA256

                                                                                      1d22620dfb2a6715e5d745aed5cf841ede0e75e1747f12b9b925a2d346bc7ecb

                                                                                      SHA512

                                                                                      e6af30c9df4f7f47696069511e64ecbc8e841629d692ee4056503df3533fb7a7a74960698826260355e1dba7b6c562482a27a39bb51a4237473ce4b68472d620

                                                                                      Download Submit

                                                                                    • /etc/id.services.conf
                                                                                      Filesize

                                                                                      5.6MB

                                                                                      MD5

                                                                                      fbf096212c93ddffb456ab302df8e786

                                                                                      SHA1

                                                                                      2b56a586a7f0596121c70cbb413ea9011f318f88

                                                                                      SHA256

                                                                                      c858f4e0ba6e6af00db0fdff7ddbf58a27d1c1ec57896367e52a1d0b5f09191f

                                                                                      SHA512

                                                                                      bb9c41b580f886806e642e4633e7b357717a8960148c3be9fc87ab08e6a2f8f778402235d01032bc9d64ffbc7a9c32a7ea7c6d34fb0e9d574f81acf569b52bee

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                                                                                    • /etc/init.d/linux_kill
                                                                                      Filesize

                                                                                      189B

                                                                                      MD5

                                                                                      3909975f7cc0d1121c1819b800069f31

                                                                                      SHA1

                                                                                      3e68de708c2e6c40fab6794afdee3104e5590189

                                                                                      SHA256

                                                                                      6876dac71f13a068afb863d257134275f2edba43b2acaf4924fabf97c079070b

                                                                                      SHA512

                                                                                      50600cceeb03b05f45ae61d890caee9f51ff390b6776930866e527e071d65d08241fc66673fd9b99d62fbc77d3c00fc3de4d7378cbc42f5daba5d83072b0906e

                                                                                      Download Submit

                                                                                    • /etc/profile.d/bash_config.sh
                                                                                      Filesize

                                                                                      37B

                                                                                      MD5

                                                                                      cfb4e51061485fe91169381fbdc1538e

                                                                                      SHA1

                                                                                      9a85b9b766a15b01737a41d680e4593b7a9bde87

                                                                                      SHA256

                                                                                      897f37267d0ceaa2fbdaa09847f5d08e6f8b01a0348a0d666264b0f10acd0c90

                                                                                      SHA512

                                                                                      fb154ec711d2090a7461da4db8ddad2b522649a27e74162ecb203f539b1729430288bc02d78d2071bde9c4bbc005693403a57612ef50277d52f816cb94524216

                                                                                      Download Submit