Analysis

  • max time kernel
    0s
  • max time network
    150s
  • platform
    linux_mips
  • resource
    debian9-mipsbe-en-20211208
  • submitted
    25-04-2022 23:05

General

  • Target

    Mozi.miyjihkmr

  • Size

    132KB

  • MD5

    59ce0baba11893f90527fc951ac69912

  • SHA1

    5857a7dd621c4c3ebb0b5a3bec915d409f70d39f

  • SHA256

    4293c1d8574dc87c58360d6bac3daa182f64f7785c9d41da5e0741d2b1817fc7

  • SHA512

    c5b12797b477e5e5964a78766bb40b1c0d9fdfb8eef1f9aee3df451e3441a40c61d325bf400ba51048811b68e1c70a95f15e4166b7a65a4eca0c624864328647

Malware Config

Signatures

  • Contacts a large (5762) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Modifies the Watchdog daemon 1 TTPs

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

  • Writes file to system bin folder 1 TTPs 2 IoCs
  • 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.

  • Modifies init.d 1 TTPs 1 IoCs

    Adds/modifies system service, likely for persistence.

  • Reads system routing table 1 TTPs 1 IoCs

    Gets active network interfaces from /proc virtual filesystem.

  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Reads system network configuration 1 TTPs 3 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

  • Reads runtime system information 2 IoCs

    Reads data from /proc virtual filesystem.

  • Writes file to tmp directory 1 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • ./Mozi.miyjihkmr
    ./Mozi.miyjihkmr
    1⤵
    • Enumerates active TCP sockets
    • Reads system network configuration
    • Reads runtime system information
    PID:320
  • /bin/sh
    sh -c "killall -9 telnetd utelnetd scfgmgr"
    1⤵
      PID:323
    • /bin/sh
      sh -c "iptables -I INPUT -p tcp --destination-port 42983 -j ACCEPT"
      1⤵
        PID:333
        • /sbin/iptables
          iptables -I INPUT -p tcp --destination-port 42983 -j ACCEPT
          2⤵
            PID:334
        • /sbin/iptables
          iptables -I OUTPUT -p tcp --source-port 42983 -j ACCEPT
          1⤵
            PID:340
          • /bin/sh
            sh -c "iptables -I PREROUTING -t nat -p tcp --destination-port 42983 -j ACCEPT"
            1⤵
              PID:341
              • /sbin/iptables
                iptables -I PREROUTING -t nat -p tcp --destination-port 42983 -j ACCEPT
                2⤵
                  PID:342
              • /bin/sh
                sh -c "iptables -I POSTROUTING -t nat -p tcp --source-port 42983 -j ACCEPT"
                1⤵
                  PID:351
                  • /sbin/iptables
                    iptables -I POSTROUTING -t nat -p tcp --source-port 42983 -j ACCEPT
                    2⤵
                      PID:352
                  • /bin/sh
                    sh -c "iptables -I INPUT -p tcp --dport 42983 -j ACCEPT"
                    1⤵
                      PID:353
                      • /sbin/iptables
                        iptables -I INPUT -p tcp --dport 42983 -j ACCEPT
                        2⤵
                          PID:354
                      • /bin/sh
                        sh -c "iptables -I OUTPUT -p tcp --sport 42983 -j ACCEPT"
                        1⤵
                          PID:355
                          • /sbin/iptables
                            iptables -I OUTPUT -p tcp --sport 42983 -j ACCEPT
                            2⤵
                              PID:356
                          • /bin/sh
                            sh -c "iptables -I INPUT -p tcp --destination-port 22 -j DROP"
                            1⤵
                              PID:357
                              • /sbin/iptables
                                iptables -I INPUT -p tcp --destination-port 22 -j DROP
                                2⤵
                                  PID:358
                              • /bin/sh
                                sh -c "iptables -I PREROUTING -t nat -p tcp --dport 42983 -j ACCEPT"
                                1⤵
                                  PID:359
                                  • /sbin/iptables
                                    iptables -I PREROUTING -t nat -p tcp --dport 42983 -j ACCEPT
                                    2⤵
                                      PID:360
                                  • /bin/sh
                                    sh -c "iptables -I INPUT -p tcp --destination-port 23 -j DROP"
                                    1⤵
                                      PID:361
                                      • /sbin/iptables
                                        iptables -I INPUT -p tcp --destination-port 23 -j DROP
                                        2⤵
                                          PID:362
                                      • /bin/sh
                                        sh -c "iptables -I POSTROUTING -t nat -p tcp --sport 42983 -j ACCEPT"
                                        1⤵
                                          PID:363
                                          • /sbin/iptables
                                            iptables -I POSTROUTING -t nat -p tcp --sport 42983 -j ACCEPT
                                            2⤵
                                              PID:364
                                          • /bin/sh
                                            sh -c "iptables -I INPUT -p tcp --destination-port 2323 -j DROP"
                                            1⤵
                                              PID:365
                                              • /sbin/iptables
                                                iptables -I INPUT -p tcp --destination-port 2323 -j DROP
                                                2⤵
                                                  PID:366
                                              • /bin/sh
                                                sh -c "iptables -I OUTPUT -p tcp --source-port 22 -j DROP"
                                                1⤵
                                                  PID:367
                                                  • /sbin/iptables
                                                    iptables -I OUTPUT -p tcp --source-port 22 -j DROP
                                                    2⤵
                                                      PID:368
                                                  • /bin/sh
                                                    sh -c "iptables -I OUTPUT -p tcp --source-port 23 -j DROP"
                                                    1⤵
                                                      PID:369
                                                      • /sbin/iptables
                                                        iptables -I OUTPUT -p tcp --source-port 23 -j DROP
                                                        2⤵
                                                          PID:370
                                                      • /bin/sh
                                                        sh -c "iptables -I OUTPUT -p tcp --source-port 2323 -j DROP"
                                                        1⤵
                                                          PID:371
                                                          • /sbin/iptables
                                                            iptables -I OUTPUT -p tcp --source-port 2323 -j DROP
                                                            2⤵
                                                              PID:372
                                                          • /bin/sh
                                                            sh -c "iptables -I INPUT -p tcp --dport 22 -j DROP"
                                                            1⤵
                                                              PID:373
                                                              • /sbin/iptables
                                                                iptables -I INPUT -p tcp --dport 22 -j DROP
                                                                2⤵
                                                                  PID:374
                                                              • /bin/sh
                                                                sh -c "iptables -I INPUT -p tcp --dport 23 -j DROP"
                                                                1⤵
                                                                  PID:375
                                                                  • /sbin/iptables
                                                                    iptables -I INPUT -p tcp --dport 23 -j DROP
                                                                    2⤵
                                                                      PID:376
                                                                  • /bin/sh
                                                                    sh -c "iptables -I INPUT -p tcp --dport 2323 -j DROP"
                                                                    1⤵
                                                                      PID:377
                                                                      • /sbin/iptables
                                                                        iptables -I INPUT -p tcp --dport 2323 -j DROP
                                                                        2⤵
                                                                          PID:378
                                                                      • /bin/sh
                                                                        sh -c "iptables -I OUTPUT -p tcp --sport 22 -j DROP"
                                                                        1⤵
                                                                          PID:379
                                                                          • /sbin/iptables
                                                                            iptables -I OUTPUT -p tcp --sport 22 -j DROP
                                                                            2⤵
                                                                              PID:380
                                                                          • /bin/sh
                                                                            sh -c "iptables -I OUTPUT -p tcp --sport 23 -j DROP"
                                                                            1⤵
                                                                              PID:381
                                                                              • /sbin/iptables
                                                                                iptables -I OUTPUT -p tcp --sport 23 -j DROP
                                                                                2⤵
                                                                                  PID:382
                                                                              • /bin/sh
                                                                                sh -c "iptables -I OUTPUT -p tcp --sport 2323 -j DROP"
                                                                                1⤵
                                                                                  PID:383
                                                                                  • /sbin/iptables
                                                                                    iptables -I OUTPUT -p tcp --sport 2323 -j DROP
                                                                                    2⤵
                                                                                      PID:384
                                                                                  • /bin/sh
                                                                                    sh -c "iptables -I INPUT -p tcp --destination-port 58000 -j DROP"
                                                                                    1⤵
                                                                                      PID:385
                                                                                      • /sbin/iptables
                                                                                        iptables -I INPUT -p tcp --destination-port 58000 -j DROP
                                                                                        2⤵
                                                                                          PID:386
                                                                                      • /bin/sh
                                                                                        sh -c "iptables -I OUTPUT -p tcp --source-port 58000 -j DROP"
                                                                                        1⤵
                                                                                          PID:387
                                                                                          • /sbin/iptables
                                                                                            iptables -I OUTPUT -p tcp --source-port 58000 -j DROP
                                                                                            2⤵
                                                                                              PID:388
                                                                                          • /bin/sh
                                                                                            sh -c "iptables -I INPUT -p tcp --dport 58000 -j DROP"
                                                                                            1⤵
                                                                                              PID:389
                                                                                              • /sbin/iptables
                                                                                                iptables -I INPUT -p tcp --dport 58000 -j DROP
                                                                                                2⤵
                                                                                                  PID:390
                                                                                              • /bin/sh
                                                                                                sh -c "iptables -I OUTPUT -p tcp --sport 58000 -j DROP"
                                                                                                1⤵
                                                                                                  PID:391
                                                                                                  • /sbin/iptables
                                                                                                    iptables -I OUTPUT -p tcp --sport 58000 -j DROP
                                                                                                    2⤵
                                                                                                      PID:392
                                                                                                  • /bin/sh
                                                                                                    sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer URL \"http://127.0.0.1\""
                                                                                                    1⤵
                                                                                                      PID:393
                                                                                                    • /bin/sh
                                                                                                      sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer ConnectionRequestPassword \"acsMozi\""
                                                                                                      1⤵
                                                                                                        PID:394
                                                                                                      • /bin/sh
                                                                                                        sh -c "iptables -I INPUT -p tcp --destination-port 35000 -j DROP"
                                                                                                        1⤵
                                                                                                          PID:395
                                                                                                          • /sbin/iptables
                                                                                                            iptables -I INPUT -p tcp --destination-port 35000 -j DROP
                                                                                                            2⤵
                                                                                                              PID:396
                                                                                                          • /bin/sh
                                                                                                            sh -c "iptables -I INPUT -p tcp --destination-port 50023 -j DROP"
                                                                                                            1⤵
                                                                                                              PID:397
                                                                                                              • /sbin/iptables
                                                                                                                iptables -I INPUT -p tcp --destination-port 50023 -j DROP
                                                                                                                2⤵
                                                                                                                  PID:398
                                                                                                              • /bin/sh
                                                                                                                sh -c "iptables -I OUTPUT -p tcp --source-port 50023 -j DROP"
                                                                                                                1⤵
                                                                                                                  PID:399
                                                                                                                  • /sbin/iptables
                                                                                                                    iptables -I OUTPUT -p tcp --source-port 50023 -j DROP
                                                                                                                    2⤵
                                                                                                                      PID:400
                                                                                                                  • /bin/sh
                                                                                                                    sh -c "iptables -I OUTPUT -p tcp --source-port 35000 -j DROP"
                                                                                                                    1⤵
                                                                                                                      PID:401
                                                                                                                      • /sbin/iptables
                                                                                                                        iptables -I OUTPUT -p tcp --source-port 35000 -j DROP
                                                                                                                        2⤵
                                                                                                                          PID:402
                                                                                                                      • /bin/sh
                                                                                                                        sh -c "iptables -I INPUT -p tcp --destination-port 7547 -j DROP"
                                                                                                                        1⤵
                                                                                                                          PID:403
                                                                                                                          • /sbin/iptables
                                                                                                                            iptables -I INPUT -p tcp --destination-port 7547 -j DROP
                                                                                                                            2⤵
                                                                                                                              PID:404
                                                                                                                          • /bin/sh
                                                                                                                            sh -c "iptables -I OUTPUT -p tcp --source-port 7547 -j DROP"
                                                                                                                            1⤵
                                                                                                                              PID:405
                                                                                                                              • /sbin/iptables
                                                                                                                                iptables -I OUTPUT -p tcp --source-port 7547 -j DROP
                                                                                                                                2⤵
                                                                                                                                  PID:406
                                                                                                                              • /bin/sh
                                                                                                                                sh -c "iptables -I INPUT -p tcp --dport 35000 -j DROP"
                                                                                                                                1⤵
                                                                                                                                  PID:407
                                                                                                                                  • /sbin/iptables
                                                                                                                                    iptables -I INPUT -p tcp --dport 35000 -j DROP
                                                                                                                                    2⤵
                                                                                                                                      PID:408
                                                                                                                                  • /bin/sh
                                                                                                                                    sh -c "iptables -I INPUT -p tcp --dport 50023 -j DROP"
                                                                                                                                    1⤵
                                                                                                                                      PID:409
                                                                                                                                      • /sbin/iptables
                                                                                                                                        iptables -I INPUT -p tcp --dport 50023 -j DROP
                                                                                                                                        2⤵
                                                                                                                                          PID:410
                                                                                                                                      • /bin/sh
                                                                                                                                        sh -c "iptables -I OUTPUT -p tcp --sport 50023 -j DROP"
                                                                                                                                        1⤵
                                                                                                                                          PID:411
                                                                                                                                          • /sbin/iptables
                                                                                                                                            iptables -I OUTPUT -p tcp --sport 50023 -j DROP
                                                                                                                                            2⤵
                                                                                                                                              PID:412
                                                                                                                                          • /bin/sh
                                                                                                                                            sh -c "iptables -I OUTPUT -p tcp --sport 35000 -j DROP"
                                                                                                                                            1⤵
                                                                                                                                              PID:413
                                                                                                                                              • /sbin/iptables
                                                                                                                                                iptables -I OUTPUT -p tcp --sport 35000 -j DROP
                                                                                                                                                2⤵
                                                                                                                                                  PID:414
                                                                                                                                              • /bin/sh
                                                                                                                                                sh -c "iptables -I INPUT -p tcp --dport 7547 -j DROP"
                                                                                                                                                1⤵
                                                                                                                                                  PID:415
                                                                                                                                                  • /sbin/iptables
                                                                                                                                                    iptables -I INPUT -p tcp --dport 7547 -j DROP
                                                                                                                                                    2⤵
                                                                                                                                                      PID:416
                                                                                                                                                  • /bin/sh
                                                                                                                                                    sh -c "iptables -I OUTPUT -p tcp --sport 7547 -j DROP"
                                                                                                                                                    1⤵
                                                                                                                                                      PID:417
                                                                                                                                                      • /sbin/iptables
                                                                                                                                                        iptables -I OUTPUT -p tcp --sport 7547 -j DROP
                                                                                                                                                        2⤵
                                                                                                                                                          PID:418
                                                                                                                                                      • /bin/sh
                                                                                                                                                        sh -c "iptables -I INPUT -p udp --destination-port 25326 -j ACCEPT"
                                                                                                                                                        1⤵
                                                                                                                                                          PID:419
                                                                                                                                                          • /sbin/iptables
                                                                                                                                                            iptables -I INPUT -p udp --destination-port 25326 -j ACCEPT
                                                                                                                                                            2⤵
                                                                                                                                                              PID:420
                                                                                                                                                          • /bin/sh
                                                                                                                                                            sh -c "iptables -I OUTPUT -p udp --source-port 25326 -j ACCEPT"
                                                                                                                                                            1⤵
                                                                                                                                                              PID:421
                                                                                                                                                              • /sbin/iptables
                                                                                                                                                                iptables -I OUTPUT -p udp --source-port 25326 -j ACCEPT
                                                                                                                                                                2⤵
                                                                                                                                                                  PID:422
                                                                                                                                                              • /bin/sh
                                                                                                                                                                sh -c "iptables -I PREROUTING -t nat -p udp --destination-port 25326 -j ACCEPT"
                                                                                                                                                                1⤵
                                                                                                                                                                  PID:423
                                                                                                                                                                  • /sbin/iptables
                                                                                                                                                                    iptables -I PREROUTING -t nat -p udp --destination-port 25326 -j ACCEPT
                                                                                                                                                                    2⤵
                                                                                                                                                                      PID:424
                                                                                                                                                                  • /bin/sh
                                                                                                                                                                    sh -c "iptables -I POSTROUTING -t nat -p udp --source-port 25326 -j ACCEPT"
                                                                                                                                                                    1⤵
                                                                                                                                                                      PID:425
                                                                                                                                                                      • /sbin/iptables
                                                                                                                                                                        iptables -I POSTROUTING -t nat -p udp --source-port 25326 -j ACCEPT
                                                                                                                                                                        2⤵
                                                                                                                                                                          PID:426
                                                                                                                                                                      • /bin/sh
                                                                                                                                                                        sh -c "iptables -I INPUT -p udp --dport 25326 -j ACCEPT"
                                                                                                                                                                        1⤵
                                                                                                                                                                          PID:427
                                                                                                                                                                          • /sbin/iptables
                                                                                                                                                                            iptables -I INPUT -p udp --dport 25326 -j ACCEPT
                                                                                                                                                                            2⤵
                                                                                                                                                                              PID:428
                                                                                                                                                                          • /bin/sh
                                                                                                                                                                            sh -c "iptables -I OUTPUT -p udp --sport 25326 -j ACCEPT"
                                                                                                                                                                            1⤵
                                                                                                                                                                              PID:429
                                                                                                                                                                              • /sbin/iptables
                                                                                                                                                                                iptables -I OUTPUT -p udp --sport 25326 -j ACCEPT
                                                                                                                                                                                2⤵
                                                                                                                                                                                  PID:430
                                                                                                                                                                              • /bin/sh
                                                                                                                                                                                sh -c "iptables -I PREROUTING -t nat -p udp --dport 25326 -j ACCEPT"
                                                                                                                                                                                1⤵
                                                                                                                                                                                  PID:431
                                                                                                                                                                                  • /sbin/iptables
                                                                                                                                                                                    iptables -I PREROUTING -t nat -p udp --dport 25326 -j ACCEPT
                                                                                                                                                                                    2⤵
                                                                                                                                                                                      PID:432
                                                                                                                                                                                  • /bin/sh
                                                                                                                                                                                    sh -c "iptables -I POSTROUTING -t nat -p udp --sport 25326 -j ACCEPT"
                                                                                                                                                                                    1⤵
                                                                                                                                                                                      PID:433
                                                                                                                                                                                      • /sbin/iptables
                                                                                                                                                                                        iptables -I POSTROUTING -t nat -p udp --sport 25326 -j ACCEPT
                                                                                                                                                                                        2⤵
                                                                                                                                                                                          PID:434

                                                                                                                                                                                      Network

                                                                                                                                                                                      MITRE ATT&CK Matrix ATT&CK v6

                                                                                                                                                                                      Persistence

                                                                                                                                                                                      Hijack Execution Flow

                                                                                                                                                                                      1
                                                                                                                                                                                      T1574

                                                                                                                                                                                      Boot or Logon Autostart Execution

                                                                                                                                                                                      1
                                                                                                                                                                                      T1547

                                                                                                                                                                                      Privilege Escalation

                                                                                                                                                                                      Hijack Execution Flow

                                                                                                                                                                                      1
                                                                                                                                                                                      T1574

                                                                                                                                                                                      Boot or Logon Autostart Execution

                                                                                                                                                                                      1
                                                                                                                                                                                      T1547

                                                                                                                                                                                      Defense Evasion

                                                                                                                                                                                      Impair Defenses

                                                                                                                                                                                      1
                                                                                                                                                                                      T1562

                                                                                                                                                                                      Hijack Execution Flow

                                                                                                                                                                                      1
                                                                                                                                                                                      T1574

                                                                                                                                                                                      Discovery

                                                                                                                                                                                      Network Service Scanning

                                                                                                                                                                                      2
                                                                                                                                                                                      T1046

                                                                                                                                                                                      System Network Connections Discovery

                                                                                                                                                                                      1
                                                                                                                                                                                      T1049

                                                                                                                                                                                      System Network Configuration Discovery

                                                                                                                                                                                      2
                                                                                                                                                                                      T1016

                                                                                                                                                                                      Command and Control

                                                                                                                                                                                      Dynamic Resolution

                                                                                                                                                                                      1
                                                                                                                                                                                      T1568

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