Overview

overview

7

Static

static

1

.i

debian-9-mipsel

7

Analysis

  • max time kernel
    53s
  • 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
    31-08-2023 10:50

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General

  • Target

    .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/.i
    /tmp/.i
    1⤵
    • Modifies Watchdog functionality
    • Reads system routing table
    • Reads system network configuration
    PID:335
  • /bin/sh
    sh -c "iptables -A INPUT -p tcp --destination-port 23 -j DROP"
    1⤵
      PID:337
      • /sbin/iptables
        iptables -A INPUT -p tcp --destination-port 23 -j DROP
        2⤵
          PID:338
      • /bin/sh
        sh -c "iptables -A INPUT -p tcp --destination-port 7547 -j DROP"
        1⤵
          PID:346
          • /sbin/iptables
            iptables -A INPUT -p tcp --destination-port 7547 -j DROP
            2⤵
              PID:347
          • /bin/sh
            sh -c "iptables -A INPUT -p tcp --destination-port 5555 -j DROP"
            1⤵
              PID:348
              • /sbin/iptables
                iptables -A INPUT -p tcp --destination-port 5555 -j DROP
                2⤵
                  PID:349
              • /bin/sh
                sh -c "iptables -A INPUT -p tcp --destination-port 5358 -j DROP"
                1⤵
                  PID:350
                  • /sbin/iptables
                    iptables -A INPUT -p tcp --destination-port 5358 -j DROP
                    2⤵
                      PID:351
                  • /bin/sh
                    sh -c "iptables -D INPUT -j CWMP_CR"
                    1⤵
                      PID:352
                      • /sbin/iptables
                        iptables -D INPUT -j CWMP_CR
                        2⤵
                          PID:353
                      • /bin/sh
                        sh -c "iptables -X CWMP_CR"
                        1⤵
                          PID:354
                          • /sbin/iptables
                            iptables -X CWMP_CR
                            2⤵
                              PID:355
                          • /bin/sh
                            sh -c "iptables -I INPUT -p udp --dport 29874 -j ACCEPT"
                            1⤵
                              PID:356
                              • /sbin/iptables
                                iptables -I INPUT -p udp --dport 29874 -j ACCEPT
                                2⤵
                                  PID:357

                              Network

                              MITRE ATT&CK Enterprise v15

                              Replay Monitor

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                              Downloads

                              • memory/335-1-0x00400000-0x0047a5a0-memory.dmp

                                Download