Overview

overview

9

Static

static

5377

linux_mips

9

Resubmissions

09/10/2021, 06:22

211009-g4zklafbcj9

07/10/2021, 13:06

211007-qcjvhacdd79

07/10/2021, 12:37

211007-pthhbscfar1

03/10/2021, 12:52

211003-p32bssfdf59

01/10/2021, 09:38

211001-lmftdabden9

30/09/2021, 14:37

210930-ry4mgahhf39

24/09/2021, 10:09

210924-l64dsagef71

24/09/2021, 08:47

210924-kpzhtsgddq9

24/09/2021, 07:54

210924-jr1y1agcfj1

23/09/2021, 18:15

210923-wv15dsfab99

Analysis

  • max time kernel
    26623s
  • max time network
    2693s
  • platform
    linux_mips
  • resource
    debian9-mipsbe
  • submitted
    23/09/2021, 18:15

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General

  • Target
    5377
  • Size 83KB
  • Sample210923-wv15dsfab9
  • SHA256 020f1fa6072108c79ed6f553f4f8b08e157bf17f9c260a76353300230fed09f0
  • MD5 SHA1 SHA512
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 2 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • ./5377
    ./5377
    1⤵
      PID:327
    • /bin/sh
      sh -c "iptables -A INPUT -p tcp --destination-port 23 -j DROP"
      1⤵
        PID:335
        • /sbin/iptables
          iptables -A INPUT -p tcp --destination-port 23 -j DROP
          2⤵
            PID:336
        • /bin/sh
          sh -c "iptables -A INPUT -p tcp --destination-port 7547 -j DROP"
          1⤵
            PID:341
            • /sbin/iptables
              iptables -A INPUT -p tcp --destination-port 7547 -j DROP
              2⤵
                PID:342
            • /bin/sh
              sh -c "iptables -A INPUT -p tcp --destination-port 5555 -j DROP"
              1⤵
                PID:343
                • /sbin/iptables
                  iptables -A INPUT -p tcp --destination-port 5555 -j DROP
                  2⤵
                    PID:344
                • /bin/sh
                  sh -c "iptables -A INPUT -p tcp --destination-port 5358 -j DROP"
                  1⤵
                    PID:345
                    • /sbin/iptables
                      iptables -A INPUT -p tcp --destination-port 5358 -j DROP
                      2⤵
                        PID:346
                    • /bin/sh
                      sh -c "iptables -D INPUT -j CWMP_CR"
                      1⤵
                        PID:347
                        • /sbin/iptables
                          iptables -D INPUT -j CWMP_CR
                          2⤵
                            PID:348
                        • /bin/sh
                          sh -c "iptables -X CWMP_CR"
                          1⤵
                            PID:349
                            • /sbin/iptables
                              iptables -X CWMP_CR
                              2⤵
                                PID:350
                            • /bin/sh
                              sh -c "iptables -I INPUT -p udp --dport 61391 -j ACCEPT"
                              1⤵
                                PID:351
                                • /sbin/iptables
                                  iptables -I INPUT -p udp --dport 61391 -j ACCEPT
                                  2⤵
                                    PID:352

                                Network

                                      MITRE ATT&CK Enterprise v6

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