Overview

overview

7

Static

static

1

Untitled.i

debian-9-mipsel

7

Resubmissions

31-07-2023 03:09

230731-dnyftacd48 9

31-07-2023 03:07

230731-dmqdtacd46 7

31-07-2023 03:07

230731-dmaclacd45 1

Analysis

  • max time kernel
    61s
  • max time network
    63s
  • platform
    linux_mipsel
  • resource
    debian9-mipsel-en-20211208
  • resource tags

    arch:mipselimage:debian9-mipsel-en-20211208kernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem
  • submitted
    31-07-2023 03:07

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General

  • Target

    Untitled.i

  • Size

    83KB

  • MD5

    b8ed2cb3e9fedec5b164ce84ad5a08d0

  • SHA1

    b45ef9ad0a29b0a402d1613b10c3f6e95686230c

  • SHA256

    d5601202dff3017db238145ff21857415f663031aca9b3d534bec8991b12179a

  • SHA512

    98aa6abf6bc6b27ea2833122c468e436c267ef40c5ecbbd6446174d0859920e7b7bbcec617e12d7aa9e89e0492e5dcf4cf49a6208e7252fd0619047818454a31

  • SSDEEP

    1536:m3LqE6rUQWzVQR7iAGEcUT5PIi7pLqBNs4LOjcwf4nB6XuzGNy+iSc7tNUZM:mOE6PWo1T5bz4LVMXuzVNScWM

Score
7/10

Malware Config

Signatures

  • Changes its process name 1 IoCs
  • Deletes itself 1 IoCs
  • Modifies Watchdog functionality 1 TTPs 2 IoCs

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

  • 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

  • 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 1 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/Untitled.i
    /tmp/Untitled.i
    1⤵
    • Modifies Watchdog functionality
    • Reads system routing table
    • Reads system network configuration
    PID:332
  • /bin/sh
    sh -c "iptables -A INPUT -p tcp --destination-port 23 -j DROP"
    1⤵
    • Changes its process name
    • Deletes itself
    PID:335
    • /sbin/iptables
      iptables -A INPUT -p tcp --destination-port 23 -j DROP
      2⤵
        PID:339
    • /bin/sh
      sh -c "iptables -A INPUT -p tcp --destination-port 7547 -j DROP"
      1⤵
        PID:344
        • /sbin/iptables
          iptables -A INPUT -p tcp --destination-port 7547 -j DROP
          2⤵
            PID:345
        • /bin/sh
          sh -c "iptables -A INPUT -p tcp --destination-port 5555 -j DROP"
          1⤵
            PID:346
            • /sbin/iptables
              iptables -A INPUT -p tcp --destination-port 5555 -j DROP
              2⤵
                PID:347
            • /bin/sh
              sh -c "iptables -A INPUT -p tcp --destination-port 5358 -j DROP"
              1⤵
                PID:348
                • /sbin/iptables
                  iptables -A INPUT -p tcp --destination-port 5358 -j DROP
                  2⤵
                    PID:349
                • /bin/sh
                  sh -c "iptables -D INPUT -j CWMP_CR"
                  1⤵
                    PID:350
                    • /sbin/iptables
                      iptables -D INPUT -j CWMP_CR
                      2⤵
                        PID:351
                    • /bin/sh
                      sh -c "iptables -X CWMP_CR"
                      1⤵
                        PID:352
                        • /sbin/iptables
                          iptables -X CWMP_CR
                          2⤵
                            PID:353
                        • /bin/sh
                          sh -c "iptables -I INPUT -p udp --dport 37714 -j ACCEPT"
                          1⤵
                            PID:354
                            • /sbin/iptables
                              iptables -I INPUT -p udp --dport 37714 -j ACCEPT
                              2⤵
                                PID:355

                            Network

                            MITRE ATT&CK Enterprise v15

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