Analysis

  • max time kernel
    84s
  • max time network
    123s
  • platform
    debian-12_armhf
  • resource
    debian12-armhf-20260513-en
  • resource tags

    arch:armhfimage:debian12-armhf-20260513-enkernel:6.1.0-17-armmp-lpaelocale:en-usos:debian-12-armhfsystem
  • submitted
    22/07/2026, 06:37

General

  • Target
    pty10
  • Size 782KB
  • Sample260722-hdlfqaxtbv
  • SHA256 bfab96ba9cc070006e1cd2b793ff14b896ac468002284253eeb36a514b532205
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Kaiten,Tsunami

    Linux-based IoT botnet which is controlled through IRC and normally used to carry out DDoS attacks.

  • Detects Kaiten/Tsunami Payload 1 IoCs
  • Creates/modifies Cron job 1 TTPs 5 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

  • Indicator Removal: Timestomp 1 TTPs 10 IoCs

    Adversaries may remove indicators of compromise from the host to evade detection.

  • UPX packed file 1 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Changes its process name 1 IoCs
  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • Writes file to shm directory 1 IoCs

    Malware can drop malicious files in the shm directory which will run directly from RAM.

  • Writes file to tmp directory 1 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/pty10
    /tmp/pty10
    1⤵
    • Changes its process name
    • Writes file to tmp directory
    PID:783
    • /bin/sh
      sh -c "pidof -x strace > /dev/null"
      2⤵
        PID:790
        • /usr/bin/pidof
          pidof -x strace
          3⤵
          • Reads runtime system information
          PID:796
      • /bin/sh
        sh -c "pidof -x tcpdump > /dev/null"
        2⤵
          PID:802
          • /usr/bin/pidof
            pidof -x tcpdump
            3⤵
            • Reads runtime system information
            PID:803
        • /bin/sh
          sh -c "cat /etc/inittab | grep -v \"/tmp/pty10\" > /etc/inittab2"
          2⤵
            PID:806
            • /usr/bin/cat
              cat /etc/inittab
              3⤵
                PID:809
              • /usr/bin/grep
                grep -v /tmp/pty10
                3⤵
                  PID:813
              • /bin/sh
                sh -c "crontab -r"
                2⤵
                  PID:807
                  • /usr/bin/crontab
                    crontab -r
                    3⤵
                      PID:810
                  • /bin/sh
                    sh -c "crontab -l | grep /tmp/pty10 | grep -v \"no cron\" || (crontab -l ; echo \"* * * * * /tmp/pty10 > /dev/null 2>&1 &\") | crontab -"
                    2⤵
                      PID:808
                      • /usr/bin/grep
                        grep /tmp/pty10
                        3⤵
                          PID:812
                        • /usr/bin/crontab
                          crontab -l
                          3⤵
                            PID:811
                          • /usr/bin/grep
                            grep -v "no cron"
                            3⤵
                              PID:814
                            • /usr/bin/crontab
                              crontab -
                              3⤵
                              • Creates/modifies Cron job
                              PID:817
                            • /usr/bin/crontab
                              crontab -l
                              3⤵
                                PID:818
                            • /bin/sh
                              sh -c "echo \"0:2345:respawn:/tmp/pty10\" >> /etc/inittab2"
                              2⤵
                                PID:815
                              • /bin/sh
                                sh -c "cat /etc/inittab2 > /etc/inittab"
                                2⤵
                                  PID:819
                                  • /usr/bin/cat
                                    cat /etc/inittab2
                                    3⤵
                                      PID:820
                                  • /bin/sh
                                    sh -c "rm -rf /etc/inittab2"
                                    2⤵
                                      PID:821
                                      • /usr/bin/rm
                                        rm -rf /etc/inittab2
                                        3⤵
                                          PID:822
                                      • /bin/sh
                                        sh -c "touch -acmr /bin/ls /etc/inittab"
                                        2⤵
                                        • Indicator Removal: Timestomp
                                        PID:823
                                        • /usr/bin/touch
                                          touch -acmr /bin/ls /etc/inittab
                                          3⤵
                                          • Indicator Removal: Timestomp
                                          PID:824
                                      • /bin/sh
                                        sh -c "cp -f /tmp/pty10 /dev/shm/pty10"
                                        2⤵
                                          PID:829
                                          • /usr/bin/cp
                                            cp -f /tmp/pty10 /dev/shm/pty10
                                            3⤵
                                            • Writes file to shm directory
                                            PID:830
                                        • /bin/sh
                                          sh -c "/bin/uname -n"
                                          2⤵
                                            PID:828
                                            • /bin/uname
                                              /bin/uname -n
                                              3⤵
                                                PID:831
                                            • /bin/sh
                                              sh -c "cat /etc/inittab | grep -v \"/dev/shm/pty10\" > /etc/inittab2"
                                              2⤵
                                                PID:835
                                                • /usr/bin/cat
                                                  cat /etc/inittab
                                                  3⤵
                                                    PID:837
                                                  • /usr/bin/grep
                                                    grep -v /dev/shm/pty10
                                                    3⤵
                                                      PID:838
                                                  • /bin/sh
                                                    sh -c "crontab -l | grep /dev/shm/pty10 | grep -v \"no cron\" || (crontab -l ; echo \"* * * * * /dev/shm/pty10 > /dev/null 2>&1 &\") | crontab -"
                                                    2⤵
                                                      PID:836
                                                      • /usr/bin/crontab
                                                        crontab -l
                                                        3⤵
                                                          PID:839
                                                        • /usr/bin/grep
                                                          grep /dev/shm/pty10
                                                          3⤵
                                                            PID:840
                                                          • /usr/bin/grep
                                                            grep -v "no cron"
                                                            3⤵
                                                              PID:841
                                                            • /usr/bin/crontab
                                                              crontab -
                                                              3⤵
                                                              • Creates/modifies Cron job
                                                              PID:844
                                                            • /usr/bin/crontab
                                                              crontab -l
                                                              3⤵
                                                                PID:845
                                                            • /bin/sh
                                                              sh -c "echo \"0:2345:respawn:/dev/shm/pty10\" >> /etc/inittab2"
                                                              2⤵
                                                                PID:842
                                                              • /bin/sh
                                                                sh -c "cat /etc/inittab2 > /etc/inittab"
                                                                2⤵
                                                                  PID:846
                                                                  • /usr/bin/cat
                                                                    cat /etc/inittab2
                                                                    3⤵
                                                                      PID:847
                                                                  • /bin/sh
                                                                    sh -c "rm -rf /etc/inittab2"
                                                                    2⤵
                                                                      PID:848
                                                                      • /usr/bin/rm
                                                                        rm -rf /etc/inittab2
                                                                        3⤵
                                                                          PID:849
                                                                      • /bin/sh
                                                                        sh -c "touch -acmr /bin/ls /etc/inittab"
                                                                        2⤵
                                                                        • Indicator Removal: Timestomp
                                                                        PID:850
                                                                        • /usr/bin/touch
                                                                          touch -acmr /bin/ls /etc/inittab
                                                                          3⤵
                                                                          • Indicator Removal: Timestomp
                                                                          PID:851
                                                                      • /bin/sh
                                                                        sh -c "cp -f /tmp/pty10 /var/tmp/pty10"
                                                                        2⤵
                                                                          PID:852
                                                                          • /usr/bin/cp
                                                                            cp -f /tmp/pty10 /var/tmp/pty10
                                                                            3⤵
                                                                              PID:853
                                                                          • /bin/sh
                                                                            sh -c "cat /etc/inittab | grep -v \"/var/tmp/pty10\" > /etc/inittab2"
                                                                            2⤵
                                                                              PID:855
                                                                              • /usr/bin/cat
                                                                                cat /etc/inittab
                                                                                3⤵
                                                                                  PID:857
                                                                                • /usr/bin/grep
                                                                                  grep -v /var/tmp/pty10
                                                                                  3⤵
                                                                                    PID:858
                                                                                • /bin/sh
                                                                                  sh -c "crontab -l | grep /var/tmp/pty10 | grep -v \"no cron\" || (crontab -l ; echo \"* * * * * /var/tmp/pty10 > /dev/null 2>&1 &\") | crontab -"
                                                                                  2⤵
                                                                                    PID:856
                                                                                    • /usr/bin/crontab
                                                                                      crontab -l
                                                                                      3⤵
                                                                                        PID:859
                                                                                      • /usr/bin/grep
                                                                                        grep -v "no cron"
                                                                                        3⤵
                                                                                        • Reads runtime system information
                                                                                        PID:861
                                                                                      • /usr/bin/grep
                                                                                        grep /var/tmp/pty10
                                                                                        3⤵
                                                                                          PID:860
                                                                                        • /usr/bin/crontab
                                                                                          crontab -
                                                                                          3⤵
                                                                                          • Creates/modifies Cron job
                                                                                          PID:864
                                                                                        • /usr/bin/crontab
                                                                                          crontab -l
                                                                                          3⤵
                                                                                            PID:865
                                                                                        • /bin/sh
                                                                                          sh -c "echo \"0:2345:respawn:/var/tmp/pty10\" >> /etc/inittab2"
                                                                                          2⤵
                                                                                            PID:862
                                                                                          • /bin/sh
                                                                                            sh -c "cat /etc/inittab2 > /etc/inittab"
                                                                                            2⤵
                                                                                              PID:866
                                                                                              • /usr/bin/cat
                                                                                                cat /etc/inittab2
                                                                                                3⤵
                                                                                                  PID:867
                                                                                              • /bin/sh
                                                                                                sh -c "rm -rf /etc/inittab2"
                                                                                                2⤵
                                                                                                  PID:868
                                                                                                  • /usr/bin/rm
                                                                                                    rm -rf /etc/inittab2
                                                                                                    3⤵
                                                                                                      PID:869
                                                                                                  • /bin/sh
                                                                                                    sh -c "touch -acmr /bin/ls /etc/inittab"
                                                                                                    2⤵
                                                                                                    • Indicator Removal: Timestomp
                                                                                                    PID:870
                                                                                                    • /usr/bin/touch
                                                                                                      touch -acmr /bin/ls /etc/inittab
                                                                                                      3⤵
                                                                                                      • Indicator Removal: Timestomp
                                                                                                      PID:871
                                                                                                  • /bin/sh
                                                                                                    sh -c "cp -f /tmp/pty10 /var/lock/pty10"
                                                                                                    2⤵
                                                                                                      PID:872
                                                                                                      • /usr/bin/cp
                                                                                                        cp -f /tmp/pty10 /var/lock/pty10
                                                                                                        3⤵
                                                                                                          PID:873
                                                                                                      • /bin/sh
                                                                                                        sh -c "cat /etc/inittab | grep -v \"/var/lock/pty10\" > /etc/inittab2"
                                                                                                        2⤵
                                                                                                          PID:875
                                                                                                          • /usr/bin/cat
                                                                                                            cat /etc/inittab
                                                                                                            3⤵
                                                                                                              PID:877
                                                                                                            • /usr/bin/grep
                                                                                                              grep -v /var/lock/pty10
                                                                                                              3⤵
                                                                                                                PID:878
                                                                                                            • /bin/sh
                                                                                                              sh -c "crontab -l | grep /var/lock/pty10 | grep -v \"no cron\" || (crontab -l ; echo \"* * * * * /var/lock/pty10 > /dev/null 2>&1 &\") | crontab -"
                                                                                                              2⤵
                                                                                                                PID:876
                                                                                                                • /usr/bin/crontab
                                                                                                                  crontab -l
                                                                                                                  3⤵
                                                                                                                    PID:879
                                                                                                                  • /usr/bin/grep
                                                                                                                    grep /var/lock/pty10
                                                                                                                    3⤵
                                                                                                                      PID:880
                                                                                                                    • /usr/bin/grep
                                                                                                                      grep -v "no cron"
                                                                                                                      3⤵
                                                                                                                        PID:881
                                                                                                                      • /usr/bin/crontab
                                                                                                                        crontab -
                                                                                                                        3⤵
                                                                                                                        • Creates/modifies Cron job
                                                                                                                        PID:884
                                                                                                                      • /usr/bin/crontab
                                                                                                                        crontab -l
                                                                                                                        3⤵
                                                                                                                          PID:885
                                                                                                                      • /bin/sh
                                                                                                                        sh -c "echo \"0:2345:respawn:/var/lock/pty10\" >> /etc/inittab2"
                                                                                                                        2⤵
                                                                                                                          PID:882
                                                                                                                        • /bin/sh
                                                                                                                          sh -c "cat /etc/inittab2 > /etc/inittab"
                                                                                                                          2⤵
                                                                                                                            PID:886
                                                                                                                            • /usr/bin/cat
                                                                                                                              cat /etc/inittab2
                                                                                                                              3⤵
                                                                                                                                PID:887
                                                                                                                            • /bin/sh
                                                                                                                              sh -c "rm -rf /etc/inittab2"
                                                                                                                              2⤵
                                                                                                                                PID:888
                                                                                                                                • /usr/bin/rm
                                                                                                                                  rm -rf /etc/inittab2
                                                                                                                                  3⤵
                                                                                                                                    PID:889
                                                                                                                                • /bin/sh
                                                                                                                                  sh -c "touch -acmr /bin/ls /etc/inittab"
                                                                                                                                  2⤵
                                                                                                                                  • Indicator Removal: Timestomp
                                                                                                                                  PID:890
                                                                                                                                  • /usr/bin/touch
                                                                                                                                    touch -acmr /bin/ls /etc/inittab
                                                                                                                                    3⤵
                                                                                                                                    • Indicator Removal: Timestomp
                                                                                                                                    PID:891
                                                                                                                                • /bin/sh
                                                                                                                                  sh -c "cp -f /tmp/pty10 /var/run/pty10"
                                                                                                                                  2⤵
                                                                                                                                    PID:892
                                                                                                                                    • /usr/bin/cp
                                                                                                                                      cp -f /tmp/pty10 /var/run/pty10
                                                                                                                                      3⤵
                                                                                                                                        PID:893
                                                                                                                                    • /bin/sh
                                                                                                                                      sh -c "cat /etc/inittab | grep -v \"/var/run/pty10\" > /etc/inittab2"
                                                                                                                                      2⤵
                                                                                                                                        PID:895
                                                                                                                                        • /usr/bin/cat
                                                                                                                                          cat /etc/inittab
                                                                                                                                          3⤵
                                                                                                                                            PID:897
                                                                                                                                          • /usr/bin/grep
                                                                                                                                            grep -v /var/run/pty10
                                                                                                                                            3⤵
                                                                                                                                            • Reads runtime system information
                                                                                                                                            PID:898
                                                                                                                                        • /bin/sh
                                                                                                                                          sh -c "crontab -l | grep /var/run/pty10 | grep -v \"no cron\" || (crontab -l ; echo \"* * * * * /var/run/pty10 > /dev/null 2>&1 &\") | crontab -"
                                                                                                                                          2⤵
                                                                                                                                            PID:896
                                                                                                                                            • /usr/bin/crontab
                                                                                                                                              crontab -l
                                                                                                                                              3⤵
                                                                                                                                                PID:899
                                                                                                                                              • /usr/bin/grep
                                                                                                                                                grep /var/run/pty10
                                                                                                                                                3⤵
                                                                                                                                                • Reads runtime system information
                                                                                                                                                PID:900
                                                                                                                                              • /usr/bin/grep
                                                                                                                                                grep -v "no cron"
                                                                                                                                                3⤵
                                                                                                                                                  PID:901
                                                                                                                                                • /usr/bin/crontab
                                                                                                                                                  crontab -l
                                                                                                                                                  3⤵
                                                                                                                                                    PID:905
                                                                                                                                                  • /usr/bin/crontab
                                                                                                                                                    crontab -
                                                                                                                                                    3⤵
                                                                                                                                                    • Creates/modifies Cron job
                                                                                                                                                    PID:904
                                                                                                                                                • /bin/sh
                                                                                                                                                  sh -c "echo \"0:2345:respawn:/var/run/pty10\" >> /etc/inittab2"
                                                                                                                                                  2⤵
                                                                                                                                                    PID:902
                                                                                                                                                  • /bin/sh
                                                                                                                                                    sh -c "cat /etc/inittab2 > /etc/inittab"
                                                                                                                                                    2⤵
                                                                                                                                                      PID:906
                                                                                                                                                      • /usr/bin/cat
                                                                                                                                                        cat /etc/inittab2
                                                                                                                                                        3⤵
                                                                                                                                                          PID:907
                                                                                                                                                      • /bin/sh
                                                                                                                                                        sh -c "rm -rf /etc/inittab2"
                                                                                                                                                        2⤵
                                                                                                                                                          PID:908
                                                                                                                                                          • /usr/bin/rm
                                                                                                                                                            rm -rf /etc/inittab2
                                                                                                                                                            3⤵
                                                                                                                                                              PID:909
                                                                                                                                                          • /bin/sh
                                                                                                                                                            sh -c "touch -acmr /bin/ls /etc/inittab"
                                                                                                                                                            2⤵
                                                                                                                                                            • Indicator Removal: Timestomp
                                                                                                                                                            PID:910
                                                                                                                                                            • /usr/bin/touch
                                                                                                                                                              touch -acmr /bin/ls /etc/inittab
                                                                                                                                                              3⤵
                                                                                                                                                              • Indicator Removal: Timestomp
                                                                                                                                                              PID:911

                                                                                                                                                        Network

                                                                                                                                                              MITRE ATT&CK Enterprise v16

                                                                                                                                                              Replay Monitor

                                                                                                                                                              Loading Replay Monitor...

                                                                                                                                                              Downloads

                                                                                                                                                              pty10

                                                                                                                                                              • Path /dev/shm/pty10
                                                                                                                                                              • Size 782KB
                                                                                                                                                              • SHA256 bfab96ba9cc070006e1cd2b793ff14b896ac468002284253eeb36a514b532205
                                                                                                                                                              • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                                                                                                              inittab2

                                                                                                                                                              • Path /etc/inittab2
                                                                                                                                                              • Size 147B
                                                                                                                                                              • SHA256 8b96259f4ab0c092701259e8fc6f004ad38c74281faea62926b40a8d33c08558
                                                                                                                                                              • MD5 SHA1 SHA512 TLSH

                                                                                                                                                              inittab2

                                                                                                                                                              • Path /etc/inittab2
                                                                                                                                                              • Size 26B
                                                                                                                                                              • SHA256 f24f3e30df8aad9492bae5d3a0c3e3a223a30e2269a88ad788e29343bd6093db
                                                                                                                                                              • MD5 SHA1 SHA512

                                                                                                                                                              inittab2

                                                                                                                                                              • Path /etc/inittab2
                                                                                                                                                              • Size 56B
                                                                                                                                                              • SHA256 48ef014ece85962934660a812d4613935ab385fa83fdaa5eb13500be7b40c87a
                                                                                                                                                              • MD5 SHA1 SHA512 TLSH

                                                                                                                                                              tmp.FUCADs

                                                                                                                                                              • Path /var/spool/cron/crontabs/tmp.FUCADs
                                                                                                                                                              • Size 303B
                                                                                                                                                              • SHA256 8b8aa9348b449bb408d88c351907dfc0164159929b388bf09b457c1ca67e16b6
                                                                                                                                                              • MD5 SHA1 SHA512 TLSH

                                                                                                                                                              tmp.bx8cW2

                                                                                                                                                              • Path /var/spool/cron/crontabs/tmp.bx8cW2
                                                                                                                                                              • Size 259B
                                                                                                                                                              • SHA256 5c89c96c81129449673482824f899657ca746eef1311bbc537c4da577b03ee00
                                                                                                                                                              • MD5 SHA1 SHA512 TLSH

                                                                                                                                                              tmp.dknIzO

                                                                                                                                                              • Path /var/spool/cron/crontabs/tmp.dknIzO
                                                                                                                                                              • Size 215B
                                                                                                                                                              • SHA256 811aa3fe8e55bdcf852551258959daafb65b8f89de7e89e91468f0b8445d764f
                                                                                                                                                              • MD5 SHA1 SHA512 TLSH

                                                                                                                                                              tmp.fn56Y4

                                                                                                                                                              • Path /var/spool/cron/crontabs/tmp.fn56Y4
                                                                                                                                                              • Size 392B
                                                                                                                                                              • SHA256 ae05df81846f5be3d4879bdb6a1150171929bf264c4e47bddeb5bfc4558ba1d2
                                                                                                                                                              • MD5 SHA1 SHA512 TLSH

                                                                                                                                                              tmp.zFS3y2

                                                                                                                                                              • Path /var/spool/cron/crontabs/tmp.zFS3y2
                                                                                                                                                              • Size 348B
                                                                                                                                                              • SHA256 b46e4e8e26879d8085ffca0995e19db7572ee4a5781fdbe3dd06144f0585a30d
                                                                                                                                                              • MD5 SHA1 SHA512 TLSH