Overview

overview

9

Static

static

index.i

debian-9-mipsel

9

Analysis

  • max time kernel
    0s
  • max time network
    3s
  • platform
    debian-9_mipsel
  • resource
    debian9-mipsel-20221111-en
  • resource tags

    arch:mipselimage:debian9-mipsel-20221111-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem
  • submitted
    01-02-2023 04:02

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General

  • Target

    index.i

  • Size

    83KB

  • MD5

    b8ed2cb3e9fedec5b164ce84ad5a08d0

  • SHA1

    b45ef9ad0a29b0a402d1613b10c3f6e95686230c

  • SHA256

    d5601202dff3017db238145ff21857415f663031aca9b3d534bec8991b12179a

  • SHA512

    98aa6abf6bc6b27ea2833122c468e436c267ef40c5ecbbd6446174d0859920e7b7bbcec617e12d7aa9e89e0492e5dcf4cf49a6208e7252fd0619047818454a31

  • SSDEEP

    1536:m3LqE6rUQWzVQR7iAGEcUT5PIi7pLqBNs4LOjcwf4nB6XuzGNy+iSc7tNUZM:mOE6PWo1T5bz4LVMXuzVNScWM

Score
9/10

Malware Config

Signatures

  • Modifies the Watchdog daemon 1 TTPs

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

  • Modifies hosts file 1 IoCs

    Adds to hosts file used for mapping hosts to IP addresses.

  • Writes DNS configuration 1 TTPs 1 IoCs

    Writes data to DNS resolver config file.

  • Enumerates active TCP sockets 1 TTPs 1 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

  • Reads system routing table 1 TTPs 1 IoCs

    Gets active network interfaces from /proc virtual filesystem.

  • Reads system network configuration 1 TTPs 3 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • Writes file to tmp directory 3 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/index.i
    /tmp/index.i
    1⤵
    • Reads system routing table
    • Reads system network configuration
    PID:323
  • /bin/sh
    sh -c "iptables -A INPUT -p tcp --destination-port 23 -j DROP"
    1⤵
      PID:325
      • /sbin/iptables
        iptables -A INPUT -p tcp --destination-port 23 -j DROP
        2⤵
          PID:326
      • /bin/sh
        sh -c "iptables -A INPUT -p tcp --destination-port 7547 -j DROP"
        1⤵
          PID:335
          • /sbin/iptables
            iptables -A INPUT -p tcp --destination-port 7547 -j DROP
            2⤵
              PID:336
          • /bin/sh
            sh -c "iptables -A INPUT -p tcp --destination-port 5555 -j DROP"
            1⤵
              PID:337
              • /sbin/iptables
                iptables -A INPUT -p tcp --destination-port 5555 -j DROP
                2⤵
                  PID:338
              • /bin/sh
                sh -c "iptables -A INPUT -p tcp --destination-port 5358 -j DROP"
                1⤵
                  PID:339
                  • /sbin/iptables
                    iptables -A INPUT -p tcp --destination-port 5358 -j DROP
                    2⤵
                      PID:340
                  • /bin/sh
                    sh -c "iptables -D INPUT -j CWMP_CR"
                    1⤵
                      PID:341
                      • /sbin/iptables
                        iptables -D INPUT -j CWMP_CR
                        2⤵
                          PID:342
                      • /bin/sh
                        sh -c "iptables -X CWMP_CR"
                        1⤵
                          PID:343
                          • /sbin/iptables
                            iptables -X CWMP_CR
                            2⤵
                              PID:344
                          • /bin/sh
                            sh -c "iptables -I INPUT -p udp --dport 8019 -j ACCEPT"
                            1⤵
                              PID:345
                              • /sbin/iptables
                                iptables -I INPUT -p udp --dport 8019 -j ACCEPT
                                2⤵
                                  PID:346

                              Network

                              MITRE ATT&CK Enterprise v6

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