Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    debian-12_armhf
  • resource
    debian12-armhf-20260127-en
  • resource tags

    arch:armhfimage:debian12-armhf-20260127-enkernel:6.1.0-17-armmp-lpaelocale:en-usos:debian-12-armhfsystem
  • submitted
    27/07/2026, 00:28

General

  • Target
    pty10
  • Size 782KB
  • Sample260727-asmnbstcnd
  • SHA256 57d91bb5b6e0da0e6e7bfff3bd03b20a711e3d09cc1b19316a671bd63351b8a9
  • 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:786
    • /bin/sh
      sh -c "pidof -x strace > /dev/null"
      2⤵
        PID:795
        • /usr/bin/pidof
          pidof -x strace
          3⤵
          • Reads runtime system information
          PID:799
      • /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:807
            • /usr/bin/cat
              cat /etc/inittab
              3⤵
                PID:811
              • /usr/bin/grep
                grep -v /tmp/pty10
                3⤵
                  PID:812
              • /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:809
                  • /usr/bin/crontab
                    crontab -l
                    3⤵
                      PID:814
                    • /usr/bin/grep
                      grep /tmp/pty10
                      3⤵
                        PID:815
                      • /usr/bin/grep
                        grep -v "no cron"
                        3⤵
                          PID:816
                        • /usr/bin/crontab
                          crontab -
                          3⤵
                          • Creates/modifies Cron job
                          PID:819
                        • /usr/bin/crontab
                          crontab -l
                          3⤵
                            PID:820
                        • /bin/sh
                          sh -c "crontab -r"
                          2⤵
                            PID:810
                            • /usr/bin/crontab
                              crontab -r
                              3⤵
                                PID:813
                            • /bin/sh
                              sh -c "echo \"0:2345:respawn:/tmp/pty10\" >> /etc/inittab2"
                              2⤵
                                PID:817
                              • /bin/sh
                                sh -c "cat /etc/inittab2 > /etc/inittab"
                                2⤵
                                  PID:821
                                  • /usr/bin/cat
                                    cat /etc/inittab2
                                    3⤵
                                      PID:822
                                  • /bin/sh
                                    sh -c "rm -rf /etc/inittab2"
                                    2⤵
                                      PID:823
                                      • /usr/bin/rm
                                        rm -rf /etc/inittab2
                                        3⤵
                                          PID:824
                                      • /bin/sh
                                        sh -c "touch -acmr /bin/ls /etc/inittab"
                                        2⤵
                                        • Indicator Removal: Timestomp
                                        PID:825
                                        • /usr/bin/touch
                                          touch -acmr /bin/ls /etc/inittab
                                          3⤵
                                          • Indicator Removal: Timestomp
                                          PID:826
                                      • /bin/sh
                                        sh -c "/bin/uname -n"
                                        2⤵
                                          PID:829
                                          • /bin/uname
                                            /bin/uname -n
                                            3⤵
                                              PID:832
                                          • /bin/sh
                                            sh -c "cp -f /tmp/pty10 /dev/shm/pty10"
                                            2⤵
                                              PID:830
                                              • /usr/bin/cp
                                                cp -f /tmp/pty10 /dev/shm/pty10
                                                3⤵
                                                • Writes file to shm directory
                                                PID:831
                                            • /bin/sh
                                              sh -c "cat /etc/inittab | grep -v \"/dev/shm/pty10\" > /etc/inittab2"
                                              2⤵
                                                PID:834
                                                • /usr/bin/cat
                                                  cat /etc/inittab
                                                  3⤵
                                                    PID:836
                                                  • /usr/bin/grep
                                                    grep -v /dev/shm/pty10
                                                    3⤵
                                                    • Reads runtime system information
                                                    PID:837
                                                • /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:835
                                                    • /usr/bin/crontab
                                                      crontab -l
                                                      3⤵
                                                        PID:838
                                                      • /usr/bin/grep
                                                        grep /dev/shm/pty10
                                                        3⤵
                                                        • Reads runtime system information
                                                        PID:839
                                                      • /usr/bin/grep
                                                        grep -v "no cron"
                                                        3⤵
                                                          PID:840
                                                        • /usr/bin/crontab
                                                          crontab -
                                                          3⤵
                                                          • Creates/modifies Cron job
                                                          PID:843
                                                        • /usr/bin/crontab
                                                          crontab -l
                                                          3⤵
                                                            PID:844
                                                        • /bin/sh
                                                          sh -c "echo \"0:2345:respawn:/dev/shm/pty10\" >> /etc/inittab2"
                                                          2⤵
                                                            PID:841
                                                          • /bin/sh
                                                            sh -c "cat /etc/inittab2 > /etc/inittab"
                                                            2⤵
                                                              PID:845
                                                              • /usr/bin/cat
                                                                cat /etc/inittab2
                                                                3⤵
                                                                  PID:846
                                                              • /bin/sh
                                                                sh -c "rm -rf /etc/inittab2"
                                                                2⤵
                                                                  PID:847
                                                                  • /usr/bin/rm
                                                                    rm -rf /etc/inittab2
                                                                    3⤵
                                                                      PID:848
                                                                  • /bin/sh
                                                                    sh -c "touch -acmr /bin/ls /etc/inittab"
                                                                    2⤵
                                                                    • Indicator Removal: Timestomp
                                                                    PID:849
                                                                    • /usr/bin/touch
                                                                      touch -acmr /bin/ls /etc/inittab
                                                                      3⤵
                                                                      • Indicator Removal: Timestomp
                                                                      PID:850
                                                                  • /bin/sh
                                                                    sh -c "cp -f /tmp/pty10 /var/tmp/pty10"
                                                                    2⤵
                                                                      PID:851
                                                                      • /usr/bin/cp
                                                                        cp -f /tmp/pty10 /var/tmp/pty10
                                                                        3⤵
                                                                          PID:852
                                                                      • /bin/sh
                                                                        sh -c "cat /etc/inittab | grep -v \"/var/tmp/pty10\" > /etc/inittab2"
                                                                        2⤵
                                                                          PID:854
                                                                          • /usr/bin/cat
                                                                            cat /etc/inittab
                                                                            3⤵
                                                                              PID:856
                                                                            • /usr/bin/grep
                                                                              grep -v /var/tmp/pty10
                                                                              3⤵
                                                                                PID:857
                                                                            • /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:855
                                                                                • /usr/bin/crontab
                                                                                  crontab -l
                                                                                  3⤵
                                                                                    PID:858
                                                                                  • /usr/bin/grep
                                                                                    grep /var/tmp/pty10
                                                                                    3⤵
                                                                                    • Reads runtime system information
                                                                                    PID:859
                                                                                  • /usr/bin/grep
                                                                                    grep -v "no cron"
                                                                                    3⤵
                                                                                      PID:860
                                                                                    • /usr/bin/crontab
                                                                                      crontab -
                                                                                      3⤵
                                                                                      • Creates/modifies Cron job
                                                                                      PID:863
                                                                                    • /usr/bin/crontab
                                                                                      crontab -l
                                                                                      3⤵
                                                                                        PID:864
                                                                                    • /bin/sh
                                                                                      sh -c "echo \"0:2345:respawn:/var/tmp/pty10\" >> /etc/inittab2"
                                                                                      2⤵
                                                                                        PID:861
                                                                                      • /bin/sh
                                                                                        sh -c "cat /etc/inittab2 > /etc/inittab"
                                                                                        2⤵
                                                                                          PID:865
                                                                                          • /usr/bin/cat
                                                                                            cat /etc/inittab2
                                                                                            3⤵
                                                                                              PID:866
                                                                                          • /bin/sh
                                                                                            sh -c "rm -rf /etc/inittab2"
                                                                                            2⤵
                                                                                              PID:867
                                                                                              • /usr/bin/rm
                                                                                                rm -rf /etc/inittab2
                                                                                                3⤵
                                                                                                  PID:868
                                                                                              • /bin/sh
                                                                                                sh -c "touch -acmr /bin/ls /etc/inittab"
                                                                                                2⤵
                                                                                                • Indicator Removal: Timestomp
                                                                                                PID:869
                                                                                                • /usr/bin/touch
                                                                                                  touch -acmr /bin/ls /etc/inittab
                                                                                                  3⤵
                                                                                                  • Indicator Removal: Timestomp
                                                                                                  PID:870
                                                                                              • /bin/sh
                                                                                                sh -c "cp -f /tmp/pty10 /var/lock/pty10"
                                                                                                2⤵
                                                                                                  PID:871
                                                                                                  • /usr/bin/cp
                                                                                                    cp -f /tmp/pty10 /var/lock/pty10
                                                                                                    3⤵
                                                                                                      PID:872
                                                                                                  • /bin/sh
                                                                                                    sh -c "cat /etc/inittab | grep -v \"/var/lock/pty10\" > /etc/inittab2"
                                                                                                    2⤵
                                                                                                      PID:874
                                                                                                      • /usr/bin/cat
                                                                                                        cat /etc/inittab
                                                                                                        3⤵
                                                                                                          PID:876
                                                                                                        • /usr/bin/grep
                                                                                                          grep -v /var/lock/pty10
                                                                                                          3⤵
                                                                                                            PID:877
                                                                                                        • /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:875
                                                                                                            • /usr/bin/crontab
                                                                                                              crontab -l
                                                                                                              3⤵
                                                                                                                PID:878
                                                                                                              • /usr/bin/grep
                                                                                                                grep /var/lock/pty10
                                                                                                                3⤵
                                                                                                                  PID:879
                                                                                                                • /usr/bin/grep
                                                                                                                  grep -v "no cron"
                                                                                                                  3⤵
                                                                                                                    PID:880
                                                                                                                  • /usr/bin/crontab
                                                                                                                    crontab -
                                                                                                                    3⤵
                                                                                                                    • Creates/modifies Cron job
                                                                                                                    PID:883
                                                                                                                  • /usr/bin/crontab
                                                                                                                    crontab -l
                                                                                                                    3⤵
                                                                                                                      PID:884
                                                                                                                  • /bin/sh
                                                                                                                    sh -c "echo \"0:2345:respawn:/var/lock/pty10\" >> /etc/inittab2"
                                                                                                                    2⤵
                                                                                                                      PID:881
                                                                                                                    • /bin/sh
                                                                                                                      sh -c "cat /etc/inittab2 > /etc/inittab"
                                                                                                                      2⤵
                                                                                                                        PID:885
                                                                                                                        • /usr/bin/cat
                                                                                                                          cat /etc/inittab2
                                                                                                                          3⤵
                                                                                                                            PID:886
                                                                                                                        • /bin/sh
                                                                                                                          sh -c "rm -rf /etc/inittab2"
                                                                                                                          2⤵
                                                                                                                            PID:887
                                                                                                                            • /usr/bin/rm
                                                                                                                              rm -rf /etc/inittab2
                                                                                                                              3⤵
                                                                                                                                PID:888
                                                                                                                            • /bin/sh
                                                                                                                              sh -c "touch -acmr /bin/ls /etc/inittab"
                                                                                                                              2⤵
                                                                                                                              • Indicator Removal: Timestomp
                                                                                                                              PID:889
                                                                                                                              • /usr/bin/touch
                                                                                                                                touch -acmr /bin/ls /etc/inittab
                                                                                                                                3⤵
                                                                                                                                • Indicator Removal: Timestomp
                                                                                                                                PID:890
                                                                                                                            • /bin/sh
                                                                                                                              sh -c "cp -f /tmp/pty10 /var/run/pty10"
                                                                                                                              2⤵
                                                                                                                                PID:891
                                                                                                                                • /usr/bin/cp
                                                                                                                                  cp -f /tmp/pty10 /var/run/pty10
                                                                                                                                  3⤵
                                                                                                                                    PID:892
                                                                                                                                • /bin/sh
                                                                                                                                  sh -c "cat /etc/inittab | grep -v \"/var/run/pty10\" > /etc/inittab2"
                                                                                                                                  2⤵
                                                                                                                                    PID:894
                                                                                                                                    • /usr/bin/cat
                                                                                                                                      cat /etc/inittab
                                                                                                                                      3⤵
                                                                                                                                        PID:896
                                                                                                                                      • /usr/bin/grep
                                                                                                                                        grep -v /var/run/pty10
                                                                                                                                        3⤵
                                                                                                                                          PID:897
                                                                                                                                      • /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:895
                                                                                                                                          • /usr/bin/crontab
                                                                                                                                            crontab -l
                                                                                                                                            3⤵
                                                                                                                                              PID:898
                                                                                                                                            • /usr/bin/grep
                                                                                                                                              grep /var/run/pty10
                                                                                                                                              3⤵
                                                                                                                                              • Reads runtime system information
                                                                                                                                              PID:899
                                                                                                                                            • /usr/bin/grep
                                                                                                                                              grep -v "no cron"
                                                                                                                                              3⤵
                                                                                                                                              • Reads runtime system information
                                                                                                                                              PID:900
                                                                                                                                            • /usr/bin/crontab
                                                                                                                                              crontab -
                                                                                                                                              3⤵
                                                                                                                                              • Creates/modifies Cron job
                                                                                                                                              PID:903
                                                                                                                                            • /usr/bin/crontab
                                                                                                                                              crontab -l
                                                                                                                                              3⤵
                                                                                                                                                PID:904
                                                                                                                                            • /bin/sh
                                                                                                                                              sh -c "echo \"0:2345:respawn:/var/run/pty10\" >> /etc/inittab2"
                                                                                                                                              2⤵
                                                                                                                                                PID:901
                                                                                                                                              • /bin/sh
                                                                                                                                                sh -c "cat /etc/inittab2 > /etc/inittab"
                                                                                                                                                2⤵
                                                                                                                                                  PID:905
                                                                                                                                                  • /usr/bin/cat
                                                                                                                                                    cat /etc/inittab2
                                                                                                                                                    3⤵
                                                                                                                                                      PID:906
                                                                                                                                                  • /bin/sh
                                                                                                                                                    sh -c "rm -rf /etc/inittab2"
                                                                                                                                                    2⤵
                                                                                                                                                      PID:907
                                                                                                                                                      • /usr/bin/rm
                                                                                                                                                        rm -rf /etc/inittab2
                                                                                                                                                        3⤵
                                                                                                                                                          PID:908
                                                                                                                                                      • /bin/sh
                                                                                                                                                        sh -c "touch -acmr /bin/ls /etc/inittab"
                                                                                                                                                        2⤵
                                                                                                                                                        • Indicator Removal: Timestomp
                                                                                                                                                        PID:909
                                                                                                                                                        • /usr/bin/touch
                                                                                                                                                          touch -acmr /bin/ls /etc/inittab
                                                                                                                                                          3⤵
                                                                                                                                                          • Indicator Removal: Timestomp
                                                                                                                                                          PID:910

                                                                                                                                                    Network

                                                                                                                                                          MITRE ATT&CK Enterprise v16

                                                                                                                                                          Replay Monitor

                                                                                                                                                          Loading Replay Monitor...

                                                                                                                                                          Downloads

                                                                                                                                                          pty10

                                                                                                                                                          • Path /dev/shm/pty10
                                                                                                                                                          • Size 782KB
                                                                                                                                                          • SHA256 57d91bb5b6e0da0e6e7bfff3bd03b20a711e3d09cc1b19316a671bd63351b8a9
                                                                                                                                                          • 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.9VNZWG

                                                                                                                                                          • Path /var/spool/cron/crontabs/tmp.9VNZWG
                                                                                                                                                          • Size 215B
                                                                                                                                                          • SHA256 6bd8b95b44d382c1f742627301986323521b7aa41562656a7a405e5a03b9d1eb
                                                                                                                                                          • MD5 SHA1 SHA512 TLSH

                                                                                                                                                          tmp.PPPJDF

                                                                                                                                                          • Path /var/spool/cron/crontabs/tmp.PPPJDF
                                                                                                                                                          • Size 348B
                                                                                                                                                          • SHA256 deeaefab6eec992f884fe7b99d76a31188d18adbaae6319104efbb858804f11d
                                                                                                                                                          • MD5 SHA1 SHA512 TLSH

                                                                                                                                                          tmp.R0UTJm

                                                                                                                                                          • Path /var/spool/cron/crontabs/tmp.R0UTJm
                                                                                                                                                          • Size 303B
                                                                                                                                                          • SHA256 ca1a77d1ff4df6b1ad64f5c451e3d15bc4844adb37cbfcfa1b0184ff97e11a5e
                                                                                                                                                          • MD5 SHA1 SHA512 TLSH

                                                                                                                                                          tmp.rFI3Js

                                                                                                                                                          • Path /var/spool/cron/crontabs/tmp.rFI3Js
                                                                                                                                                          • Size 392B
                                                                                                                                                          • SHA256 66ec6cace00bc6bddeead0b693a1c10d16b07d2afae31af2e549e9beb86bcbff
                                                                                                                                                          • MD5 SHA1 SHA512 TLSH

                                                                                                                                                          tmp.t2DpxZ

                                                                                                                                                          • Path /var/spool/cron/crontabs/tmp.t2DpxZ
                                                                                                                                                          • Size 259B
                                                                                                                                                          • SHA256 ab96b8e8ee6a696586f680d2a35d42691dc90e748bdfb2f242ebd7b86bb1bae5
                                                                                                                                                          • MD5 SHA1 SHA512 TLSH