Overview

overview

10

Static

static

10

3448066.bin

debian-9-armhf

10

Analysis

  • max time kernel
    149s
  • max time network
    98s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20240611-en
  • resource tags

    arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    04/04/2025, 13:35

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    3448066.bin

  • Size

    5.0MB

  • MD5

    b7eb8e66f765a5c0a8d0ddf3ff763c3e

  • SHA1

    e89f22db7c6295ef3a18ae316066e23f857c1f2b

  • SHA256

    b8194ca3dd994e7e7a699328b57613c848c6a5704d4ffac44c94c2612c8c4d8e

  • SHA512

    cd4282de026e45a42fbc7c209d23dc4e75e3cfbbbf97accdff49c84686aa86bfb51524d69640c7a667985c3c0f0b7d02f39f943ba99c3fd4d0b1fdfa35cbe3b9

  • SSDEEP

    49152:Dx+8QIc65Q5pjPhDWact/rzwS0sELVI1:Dxd5c6k5D/

Score
10/10
kaijidefense_evasiondiscoveryexecutionpersistenceprivilege_escalation

Malware Config

Extracted

Family

kaiji

C2

196.251.85.22:50000

Signatures

  • Kaiji 1 IoCs

    Kaiji payload

  • Kaiji family
    kaiji
  • 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.

    defense_evasion
  • Creates/modifies Cron job 1 TTPs 1 IoCs

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

    executionpersistenceprivilege_escalation
  • Creates/modifies environment variables 1 TTPs 3 IoCs

    Creating/modifying environment variables is a common persistence mechanism.

    persistenceprivilege_escalationdefense_evasion
  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Modifies init.d 2 TTPs 17 IoCs

    Adds/modifies system service, likely for persistence.

    persistence
  • Write file to user bin folder 2 IoCs
    persistence
  • Modifies Bash startup script 2 TTPs 3 IoCs
    persistence
  • Command and Scripting Interpreter: Unix Shell 1 TTPs 2 IoCs

    Execute scripts via Unix Shell.

    execution
  • Enumerates kernel/hardware configuration 1 TTPs 37 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

Processes

  • /tmp/3448066.bin
    /tmp/3448066.bin
    1⤵
    • Enumerates kernel/hardware configuration
    PID:668
    • /tmp/3448066.bin
      /tmp/3448066.bin " "
      2⤵
      • Modifies Watchdog functionality
      • Creates/modifies environment variables
      • Modifies init.d
      • Write file to user bin folder
      • Modifies Bash startup script
      • Enumerates kernel/hardware configuration
      • Reads runtime system information
      PID:678
      • /bin/sh
        /bin/sh -c "/etc/32675&"
        3⤵
        • Executes dropped EXE
        • Command and Scripting Interpreter: Unix Shell
        PID:696
      • /usr/sbin/service
        service crond start
        3⤵
          PID:699
          • /usr/bin/basename
            basename /usr/sbin/service
            4⤵
              PID:702
            • /usr/bin/basename
              basename /usr/sbin/service
              4⤵
                PID:704
              • /bin/systemctl
                systemctl --quiet is-active multi-user.target
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:706
              • /bin/sed
                sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
                4⤵
                • Reads runtime system information
                PID:710
              • /bin/systemctl
                systemctl list-unit-files --full "--type=socket"
                4⤵
                • Enumerates kernel/hardware configuration
                PID:709
              • /bin/systemctl
                systemctl -p Triggers show dbus.socket
                4⤵
                • Enumerates kernel/hardware configuration
                PID:715
              • /bin/systemctl
                systemctl -p Triggers show ssh.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:717
              • /bin/systemctl
                systemctl -p Triggers show syslog.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:719
              • /bin/systemctl
                systemctl -p Triggers show systemd-fsckd.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:720
              • /bin/systemctl
                systemctl -p Triggers show systemd-initctl.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:721
              • /bin/systemctl
                systemctl -p Triggers show systemd-journald-audit.socket
                4⤵
                • Enumerates kernel/hardware configuration
                PID:722
              • /bin/systemctl
                systemctl -p Triggers show systemd-journald-dev-log.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:723
              • /bin/systemctl
                systemctl -p Triggers show systemd-journald.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:724
              • /bin/systemctl
                systemctl -p Triggers show systemd-networkd.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:725
              • /bin/systemctl
                systemctl -p Triggers show systemd-rfkill.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:726
              • /bin/systemctl
                systemctl -p Triggers show systemd-udevd-control.socket
                4⤵
                • Enumerates kernel/hardware configuration
                • Reads runtime system information
                PID:727
              • /bin/systemctl
                systemctl -p Triggers show systemd-udevd-kernel.socket
                4⤵
                • Enumerates kernel/hardware configuration
                PID:728
            • /usr/local/sbin/systemctl
              systemctl start crond.service
              3⤵
                PID:699
              • /usr/local/bin/systemctl
                systemctl start crond.service
                3⤵
                  PID:699
                • /usr/sbin/systemctl
                  systemctl start crond.service
                  3⤵
                    PID:699
                  • /usr/bin/systemctl
                    systemctl start crond.service
                    3⤵
                      PID:699
                    • /sbin/systemctl
                      systemctl start crond.service
                      3⤵
                        PID:699
                      • /bin/systemctl
                        systemctl start crond.service
                        3⤵
                        • Enumerates kernel/hardware configuration
                        • Reads runtime system information
                        PID:699
                      • /bin/sh
                        /bin/sh -c "echo \"*/1 * * * * root /.mod \" >> /etc/crontab"
                        3⤵
                        • Creates/modifies Cron job
                        • Command and Scripting Interpreter: Unix Shell
                        PID:735
                      • /usr/bin/renice
                        renice -20 678
                        3⤵
                          PID:746
                        • /bin/mount
                          mount -o bind /tmp/ /proc/678
                          3⤵
                            PID:747
                          • /usr/sbin/service
                            service cron start
                            3⤵
                              PID:748
                              • /usr/bin/basename
                                basename /usr/sbin/service
                                4⤵
                                  PID:749
                                • /usr/bin/basename
                                  basename /usr/sbin/service
                                  4⤵
                                    PID:750
                                  • /bin/systemctl
                                    systemctl --quiet is-active multi-user.target
                                    4⤵
                                    • Enumerates kernel/hardware configuration
                                    • Reads runtime system information
                                    PID:751
                                  • /bin/sed
                                    sed -ne "s/\\.socket\\s*[a-z]*\\s*\$/.socket/p"
                                    4⤵
                                    • Reads runtime system information
                                    PID:754
                                  • /bin/systemctl
                                    systemctl list-unit-files --full "--type=socket"
                                    4⤵
                                    • Enumerates kernel/hardware configuration
                                    • Reads runtime system information
                                    PID:753
                                  • /bin/systemctl
                                    systemctl -p Triggers show dbus.socket
                                    4⤵
                                    • Enumerates kernel/hardware configuration
                                    PID:759
                                  • /bin/systemctl
                                    systemctl -p Triggers show ssh.socket
                                    4⤵
                                    • Enumerates kernel/hardware configuration
                                    • Reads runtime system information
                                    PID:760
                                  • /bin/systemctl
                                    systemctl -p Triggers show syslog.socket
                                    4⤵
                                    • Enumerates kernel/hardware configuration
                                    • Reads runtime system information
                                    PID:761
                                  • /bin/systemctl
                                    systemctl -p Triggers show systemd-fsckd.socket
                                    4⤵
                                    • Enumerates kernel/hardware configuration
                                    • Reads runtime system information
                                    PID:762
                                  • /bin/systemctl
                                    systemctl -p Triggers show systemd-initctl.socket
                                    4⤵
                                    • Enumerates kernel/hardware configuration
                                    • Reads runtime system information
                                    PID:763
                                  • /bin/systemctl
                                    systemctl -p Triggers show systemd-journald-audit.socket
                                    4⤵
                                    • Enumerates kernel/hardware configuration
                                    • Reads runtime system information
                                    PID:764
                                  • /bin/systemctl
                                    systemctl -p Triggers show systemd-journald-dev-log.socket
                                    4⤵
                                    • Enumerates kernel/hardware configuration
                                    • Reads runtime system information
                                    PID:765
                                  • /bin/systemctl
                                    systemctl -p Triggers show systemd-journald.socket
                                    4⤵
                                    • Enumerates kernel/hardware configuration
                                    PID:766
                                  • /bin/systemctl
                                    systemctl -p Triggers show systemd-networkd.socket
                                    4⤵
                                    • Enumerates kernel/hardware configuration
                                    • Reads runtime system information
                                    PID:767
                                  • /bin/systemctl
                                    systemctl -p Triggers show systemd-rfkill.socket
                                    4⤵
                                    • Enumerates kernel/hardware configuration
                                    • Reads runtime system information
                                    PID:768
                                  • /bin/systemctl
                                    systemctl -p Triggers show systemd-udevd-control.socket
                                    4⤵
                                    • Enumerates kernel/hardware configuration
                                    PID:769
                                  • /bin/systemctl
                                    systemctl -p Triggers show systemd-udevd-kernel.socket
                                    4⤵
                                    • Enumerates kernel/hardware configuration
                                    PID:770
                                • /usr/local/sbin/systemctl
                                  systemctl start cron.service
                                  3⤵
                                    PID:748
                                  • /usr/local/bin/systemctl
                                    systemctl start cron.service
                                    3⤵
                                      PID:748
                                    • /usr/sbin/systemctl
                                      systemctl start cron.service
                                      3⤵
                                        PID:748
                                      • /usr/bin/systemctl
                                        systemctl start cron.service
                                        3⤵
                                          PID:748
                                        • /sbin/systemctl
                                          systemctl start cron.service
                                          3⤵
                                            PID:748
                                          • /bin/systemctl
                                            systemctl start cron.service
                                            3⤵
                                            • Enumerates kernel/hardware configuration
                                            • Reads runtime system information
                                            PID:748
                                          • /bin/systemctl
                                            systemctl start crond.service
                                            3⤵
                                            • Enumerates kernel/hardware configuration
                                            PID:771
                                      • /etc/32675
                                        /etc/32675
                                        1⤵
                                        • Executes dropped EXE
                                        PID:698
                                        • /bin/sleep
                                          sleep 60
                                          2⤵
                                            PID:701
                                          • /etc/opt.services.cfg
                                            /etc/opt.services.cfg
                                            2⤵
                                            • Executes dropped EXE
                                            • Enumerates kernel/hardware configuration
                                            PID:852
                                            • /etc/opt.services.cfg
                                              /etc/opt.services.cfg " "
                                              3⤵
                                              • Enumerates kernel/hardware configuration
                                              PID:856
                                          • /bin/sleep
                                            sleep 60
                                            2⤵
                                              PID:857
                                            • /etc/opt.services.cfg
                                              /etc/opt.services.cfg
                                              2⤵
                                              • Executes dropped EXE
                                              • Enumerates kernel/hardware configuration
                                              PID:884
                                              • /etc/opt.services.cfg
                                                /etc/opt.services.cfg " "
                                                3⤵
                                                • Enumerates kernel/hardware configuration
                                                PID:888
                                            • /bin/sleep
                                              sleep 60
                                              2⤵
                                                PID:889

                                            Network

                                            MITRE ATT&CK Enterprise v15

                                            Reconnaissance

                                            Resource Development

                                            Initial Access

                                            Execution

                                            Command and Scripting Interpreter

                                            1
                                            T1059

                                            Unix Shell

                                            1
                                            T1059.004

                                            Scheduled Task/Job

                                            1
                                            T1053

                                            Cron

                                            1
                                            T1053.003

                                            Persistence

                                            Boot or Logon Autostart Execution

                                            2
                                            T1547

                                            Boot or Logon Initialization Scripts

                                            1
                                            T1037

                                            RC Scripts

                                            1
                                            T1037.004

                                            Event Triggered Execution

                                            1
                                            T1546

                                            Unix Shell Configuration Modification

                                            1
                                            T1546.004

                                            Hijack Execution Flow

                                            1
                                            T1574

                                            Path Interception by PATH Environment Variable

                                            1
                                            T1574.007

                                            Scheduled Task/Job

                                            1
                                            T1053

                                            Cron

                                            1
                                            T1053.003

                                            Privilege Escalation

                                            Boot or Logon Autostart Execution

                                            2
                                            T1547

                                            Boot or Logon Initialization Scripts

                                            1
                                            T1037

                                            RC Scripts

                                            1
                                            T1037.004

                                            Event Triggered Execution

                                            1
                                            T1546

                                            Unix Shell Configuration Modification

                                            1
                                            T1546.004

                                            Hijack Execution Flow

                                            1
                                            T1574

                                            Path Interception by PATH Environment Variable

                                            1
                                            T1574.007

                                            Scheduled Task/Job

                                            1
                                            T1053

                                            Cron

                                            1
                                            T1053.003

                                            Defense Evasion

                                            Hijack Execution Flow

                                            1
                                            T1574

                                            Path Interception by PATH Environment Variable

                                            1
                                            T1574.007

                                            Impair Defenses

                                            1
                                            T1562

                                            Credential Access

                                            Discovery

                                            System Information Discovery

                                            1
                                            T1082

                                            Lateral Movement

                                            Collection

                                            Command and Control

                                            Exfiltration

                                            Impact

                                            Replay Monitor

                                            Loading Replay Monitor...

                                            Downloads

                                            • /.mod
                                              Filesize

                                              34B

                                              MD5

                                              f5a3713282e43c200f30342f5ff5e2ea

                                              SHA1

                                              2b2ce1a207e2b691a074c6f78f71c4785aae426a

                                              SHA256

                                              6ab64e727571458d4884fb2fe82c27c467db0699cb8f648b3f0217c35d2b7511

                                              SHA512

                                              5bcb8cd360409147a486755f90e0cdd97183af02ce8de5135b7c6a8a010deb9ef12dcd5ee9a2a8fd2e159347f68e72d6b7fd75e943b4fcd928d7a74b97476013

                                              Download Submit

                                            • /etc/.walk
                                              Filesize

                                              41B

                                              MD5

                                              6c2da4bad0bfe61eaa69e5e0c4f2e17a

                                              SHA1

                                              e32668ae82538e76f288121378d67851fb59f844

                                              SHA256

                                              a09a2e6c2fe080962fa3918203a00c40512d888f84046f5326391f8553757822

                                              SHA512

                                              22f9c2a48659d99d8b8228b5fa0628ca29df6a2d67b4f4542ab3450a2ac8e59558923dbc60198b7d4786ea3a0e34acbbf21f6e228915d02c8e6dc25a8eb8eb22

                                              Download Submit

                                            • /etc/.walk
                                              Filesize

                                              90B

                                              MD5

                                              f806d33ca1edeca414716a56a63479b5

                                              SHA1

                                              d9ba45e8f6b02d4d613cc7b9ec5fa9009e9b5883

                                              SHA256

                                              492a842592f810b9572293af1ceaa6ffab24eb2cd242b057b2f88a1ab8c8bec1

                                              SHA512

                                              e71d3d540fd18376b660df37feccca85982f54aef62dc245b0b469f0b65fcdb9c513a0d68e2a13681385932834b535936f82b9a469cd730165266d8f90d2c5e5

                                              Download Submit

                                            • /etc/32675
                                              Filesize

                                              61B

                                              MD5

                                              47684525bfdf26f49fd1cf742b17c015

                                              SHA1

                                              c4ab14ba22420ff9acadfc698a38d0cd99e9fbfa

                                              SHA256

                                              b7ce294613dd2c237a4a50548bfcd5c14d166107f2d2e965499bc78695300d5b

                                              SHA512

                                              948f9c519ae9afe1c821c5d58da2e584e50356dabef597ccd408853a9038560b9fb1c5894900e2725b48977ffd49d18a439436bb4946e2164ac9fcf2a8637621

                                              Download Submit

                                            • /etc/opt.services.cfg
                                              Filesize

                                              5.0MB

                                              MD5

                                              b7eb8e66f765a5c0a8d0ddf3ff763c3e

                                              SHA1

                                              e89f22db7c6295ef3a18ae316066e23f857c1f2b

                                              SHA256

                                              b8194ca3dd994e7e7a699328b57613c848c6a5704d4ffac44c94c2612c8c4d8e

                                              SHA512

                                              cd4282de026e45a42fbc7c209d23dc4e75e3cfbbbf97accdff49c84686aa86bfb51524d69640c7a667985c3c0f0b7d02f39f943ba99c3fd4d0b1fdfa35cbe3b9

                                              Download Submit

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

                                              912B

                                              MD5

                                              c17dc38f36b7847e77655d793c48cae1

                                              SHA1

                                              dc86e1c7ce2d71ecbbeaa45b3c9bb9855964da4f

                                              SHA256

                                              ed65c57eb7977e578e0379442c7ee10fc35b0bc7ff816aae7660dd540db7c1b8

                                              SHA512

                                              d9548a14dcae1c6cb84e94bfd7d60185e725cacb60b8ec170bcff3eb814b70cd78aa27bc293a003d28d80ff2aed55f1f3bcae3c0c204b4412d6c2fb25d4c3b19

                                              Download Submit

                                            • /usr/bin/include/find
                                              Filesize

                                              134KB

                                              MD5

                                              138a27d6fe52fa1132760a4fa48922e0

                                              SHA1

                                              e0250e4d7bf33a5a1064344224148b889cb15138

                                              SHA256

                                              81a10dad907b23521461bd3fc83c2cedb2218933a328d9a05e3c9f6a9a1d42aa

                                              SHA512

                                              ee0078afad63fc2aaffdebb7127d1c7d4459287fee75358f57c82d397c39b7bf64338fb6996dfb1747cd9a896d714b3c76f0948727be91550f1affa1c0298a9e

                                              Download Submit