Analysis

  • max time kernel
    11946s
  • max time network
    168s
  • platform
    linux_mipsel
  • resource
    debian9-mipsel-en-20211208
  • submitted
    25-04-2022 23:04

General

  • Target

    Mozi.mioqhjebs

  • Size

    134KB

  • MD5

    d253b6fc961673435c0e034675f43cf6

  • SHA1

    0594b9aa72a54bbf69d99fee3d0ba75dd9f06e72

  • SHA256

    798725bcb7292e8b41279521dde20eea17c119e8a37c39dea098091a210f611c

  • SHA512

    6ad42f065811e4667246d97d64331528806f7ddf71be60606733e3fe6bffcab8aae4351cc4ebd08dbbf0d03cb90f3af91e20ab3cd94ebdb593915bf5693e83d3

Malware Config

Signatures

  • Contacts a large (6227) 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.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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.mioqhjebs
    ./Mozi.mioqhjebs
    1⤵
    • Enumerates active TCP sockets
    • Reads system network configuration
    • Reads runtime system information
    PID:325
  • /bin/sh
    sh -c "killall -9 telnetd utelnetd scfgmgr"
    1⤵
      PID:328
    • /bin/sh
      sh -c "iptables -I INPUT -p tcp --destination-port 33011 -j ACCEPT"
      1⤵
        PID:339
        • /sbin/iptables
          iptables -I INPUT -p tcp --destination-port 33011 -j ACCEPT
          2⤵
            PID:340
        • /bin/sh
          sh -c "iptables -I OUTPUT -p tcp --source-port 33011 -j ACCEPT"
          1⤵
            PID:345
            • /sbin/iptables
              iptables -I OUTPUT -p tcp --source-port 33011 -j ACCEPT
              2⤵
                PID:346
            • /bin/sh
              sh -c "iptables -I PREROUTING -t nat -p tcp --destination-port 33011 -j ACCEPT"
              1⤵
                PID:347
                • /sbin/iptables
                  iptables -I PREROUTING -t nat -p tcp --destination-port 33011 -j ACCEPT
                  2⤵
                    PID:348
                • /bin/sh
                  sh -c "iptables -I POSTROUTING -t nat -p tcp --source-port 33011 -j ACCEPT"
                  1⤵
                    PID:357
                    • /sbin/iptables
                      iptables -I POSTROUTING -t nat -p tcp --source-port 33011 -j ACCEPT
                      2⤵
                        PID:358
                    • /bin/sh
                      sh -c "iptables -I INPUT -p tcp --destination-port 22 -j DROP"
                      1⤵
                        PID:359
                        • /sbin/iptables
                          iptables -I INPUT -p tcp --destination-port 22 -j DROP
                          2⤵
                            PID:361
                        • /bin/sh
                          sh -c "iptables -I INPUT -p tcp --dport 33011 -j ACCEPT"
                          1⤵
                            PID:360
                            • /sbin/iptables
                              iptables -I INPUT -p tcp --dport 33011 -j ACCEPT
                              2⤵
                                PID:362
                            • /bin/sh
                              sh -c "iptables -I INPUT -p tcp --destination-port 23 -j DROP"
                              1⤵
                                PID:363
                                • /sbin/iptables
                                  iptables -I INPUT -p tcp --destination-port 23 -j DROP
                                  2⤵
                                    PID:365
                                • /bin/sh
                                  sh -c "iptables -I OUTPUT -p tcp --sport 33011 -j ACCEPT"
                                  1⤵
                                    PID:364
                                    • /sbin/iptables
                                      iptables -I OUTPUT -p tcp --sport 33011 -j ACCEPT
                                      2⤵
                                        PID:366
                                    • /bin/sh
                                      sh -c "iptables -I INPUT -p tcp --destination-port 2323 -j DROP"
                                      1⤵
                                        PID:368
                                        • /sbin/iptables
                                          iptables -I INPUT -p tcp --destination-port 2323 -j DROP
                                          2⤵
                                            PID:370
                                        • /bin/sh
                                          sh -c "iptables -I PREROUTING -t nat -p tcp --dport 33011 -j ACCEPT"
                                          1⤵
                                            PID:369
                                            • /sbin/iptables
                                              iptables -I PREROUTING -t nat -p tcp --dport 33011 -j ACCEPT
                                              2⤵
                                                PID:371
                                            • /bin/sh
                                              sh -c "iptables -I OUTPUT -p tcp --source-port 22 -j DROP"
                                              1⤵
                                                PID:372
                                                • /sbin/iptables
                                                  iptables -I OUTPUT -p tcp --source-port 22 -j DROP
                                                  2⤵
                                                    PID:374
                                                • /bin/sh
                                                  sh -c "iptables -I POSTROUTING -t nat -p tcp --sport 33011 -j ACCEPT"
                                                  1⤵
                                                    PID:373
                                                    • /sbin/iptables
                                                      iptables -I POSTROUTING -t nat -p tcp --sport 33011 -j ACCEPT
                                                      2⤵
                                                        PID:375
                                                    • /bin/sh
                                                      sh -c "iptables -I OUTPUT -p tcp --source-port 23 -j DROP"
                                                      1⤵
                                                        PID:376
                                                        • /sbin/iptables
                                                          iptables -I OUTPUT -p tcp --source-port 23 -j DROP
                                                          2⤵
                                                            PID:377
                                                        • /bin/sh
                                                          sh -c "iptables -I OUTPUT -p tcp --source-port 2323 -j DROP"
                                                          1⤵
                                                            PID:378
                                                            • /sbin/iptables
                                                              iptables -I OUTPUT -p tcp --source-port 2323 -j DROP
                                                              2⤵
                                                                PID:379
                                                            • /bin/sh
                                                              sh -c "iptables -I INPUT -p tcp --dport 22 -j DROP"
                                                              1⤵
                                                                PID:380
                                                                • /sbin/iptables
                                                                  iptables -I INPUT -p tcp --dport 22 -j DROP
                                                                  2⤵
                                                                    PID:381
                                                                • /bin/sh
                                                                  sh -c "iptables -I INPUT -p tcp --dport 23 -j DROP"
                                                                  1⤵
                                                                    PID:382
                                                                    • /sbin/iptables
                                                                      iptables -I INPUT -p tcp --dport 23 -j DROP
                                                                      2⤵
                                                                        PID:383
                                                                    • /bin/sh
                                                                      sh -c "iptables -I INPUT -p tcp --dport 2323 -j DROP"
                                                                      1⤵
                                                                        PID:384
                                                                        • /sbin/iptables
                                                                          iptables -I INPUT -p tcp --dport 2323 -j DROP
                                                                          2⤵
                                                                            PID:385
                                                                        • /bin/sh
                                                                          sh -c "iptables -I OUTPUT -p tcp --sport 22 -j DROP"
                                                                          1⤵
                                                                            PID:386
                                                                            • /sbin/iptables
                                                                              iptables -I OUTPUT -p tcp --sport 22 -j DROP
                                                                              2⤵
                                                                                PID:387
                                                                            • /bin/sh
                                                                              sh -c "iptables -I OUTPUT -p tcp --sport 23 -j DROP"
                                                                              1⤵
                                                                                PID:388
                                                                                • /sbin/iptables
                                                                                  iptables -I OUTPUT -p tcp --sport 23 -j DROP
                                                                                  2⤵
                                                                                    PID:390
                                                                                • /bin/sh
                                                                                  sh -c "iptables -I OUTPUT -p tcp --sport 2323 -j DROP"
                                                                                  1⤵
                                                                                    PID:391
                                                                                    • /sbin/iptables
                                                                                      iptables -I OUTPUT -p tcp --sport 2323 -j DROP
                                                                                      2⤵
                                                                                        PID:392
                                                                                    • /bin/sh
                                                                                      sh -c "iptables -I INPUT -p tcp --destination-port 58000 -j DROP"
                                                                                      1⤵
                                                                                        PID:393
                                                                                        • /sbin/iptables
                                                                                          iptables -I INPUT -p tcp --destination-port 58000 -j DROP
                                                                                          2⤵
                                                                                            PID:394
                                                                                        • /bin/sh
                                                                                          sh -c "iptables -I OUTPUT -p tcp --source-port 58000 -j DROP"
                                                                                          1⤵
                                                                                            PID:395
                                                                                            • /sbin/iptables
                                                                                              iptables -I OUTPUT -p tcp --source-port 58000 -j DROP
                                                                                              2⤵
                                                                                                PID:396
                                                                                            • /bin/sh
                                                                                              sh -c "iptables -I INPUT -p tcp --dport 58000 -j DROP"
                                                                                              1⤵
                                                                                                PID:397
                                                                                                • /sbin/iptables
                                                                                                  iptables -I INPUT -p tcp --dport 58000 -j DROP
                                                                                                  2⤵
                                                                                                    PID:398
                                                                                                • /bin/sh
                                                                                                  sh -c "iptables -I OUTPUT -p tcp --sport 58000 -j DROP"
                                                                                                  1⤵
                                                                                                    PID:399
                                                                                                    • /sbin/iptables
                                                                                                      iptables -I OUTPUT -p tcp --sport 58000 -j DROP
                                                                                                      2⤵
                                                                                                        PID:400
                                                                                                    • /bin/sh
                                                                                                      sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer URL \"http://127.0.0.1\""
                                                                                                      1⤵
                                                                                                        PID:401
                                                                                                      • /bin/sh
                                                                                                        sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer ConnectionRequestPassword \"acsMozi\""
                                                                                                        1⤵
                                                                                                          PID:402
                                                                                                        • /bin/sh
                                                                                                          sh -c "iptables -I INPUT -p tcp --destination-port 35000 -j DROP"
                                                                                                          1⤵
                                                                                                            PID:403
                                                                                                            • /sbin/iptables
                                                                                                              iptables -I INPUT -p tcp --destination-port 35000 -j DROP
                                                                                                              2⤵
                                                                                                                PID:404
                                                                                                            • /bin/sh
                                                                                                              sh -c "iptables -I INPUT -p tcp --destination-port 50023 -j DROP"
                                                                                                              1⤵
                                                                                                                PID:405
                                                                                                                • /sbin/iptables
                                                                                                                  iptables -I INPUT -p tcp --destination-port 50023 -j DROP
                                                                                                                  2⤵
                                                                                                                    PID:406
                                                                                                                • /bin/sh
                                                                                                                  sh -c "iptables -I OUTPUT -p tcp --source-port 50023 -j DROP"
                                                                                                                  1⤵
                                                                                                                    PID:407
                                                                                                                    • /sbin/iptables
                                                                                                                      iptables -I OUTPUT -p tcp --source-port 50023 -j DROP
                                                                                                                      2⤵
                                                                                                                        PID:408
                                                                                                                    • /bin/sh
                                                                                                                      sh -c "iptables -I OUTPUT -p tcp --source-port 35000 -j DROP"
                                                                                                                      1⤵
                                                                                                                        PID:409
                                                                                                                        • /sbin/iptables
                                                                                                                          iptables -I OUTPUT -p tcp --source-port 35000 -j DROP
                                                                                                                          2⤵
                                                                                                                            PID:410
                                                                                                                        • /bin/sh
                                                                                                                          sh -c "iptables -I INPUT -p tcp --destination-port 7547 -j DROP"
                                                                                                                          1⤵
                                                                                                                            PID:411
                                                                                                                            • /sbin/iptables
                                                                                                                              iptables -I INPUT -p tcp --destination-port 7547 -j DROP
                                                                                                                              2⤵
                                                                                                                                PID:412
                                                                                                                            • /bin/sh
                                                                                                                              sh -c "iptables -I OUTPUT -p tcp --source-port 7547 -j DROP"
                                                                                                                              1⤵
                                                                                                                                PID:413
                                                                                                                                • /sbin/iptables
                                                                                                                                  iptables -I OUTPUT -p tcp --source-port 7547 -j DROP
                                                                                                                                  2⤵
                                                                                                                                    PID:414
                                                                                                                                • /bin/sh
                                                                                                                                  sh -c "iptables -I INPUT -p tcp --dport 35000 -j DROP"
                                                                                                                                  1⤵
                                                                                                                                    PID:415
                                                                                                                                    • /sbin/iptables
                                                                                                                                      iptables -I INPUT -p tcp --dport 35000 -j DROP
                                                                                                                                      2⤵
                                                                                                                                        PID:416
                                                                                                                                    • /bin/sh
                                                                                                                                      sh -c "iptables -I INPUT -p tcp --dport 50023 -j DROP"
                                                                                                                                      1⤵
                                                                                                                                        PID:417
                                                                                                                                        • /sbin/iptables
                                                                                                                                          iptables -I INPUT -p tcp --dport 50023 -j DROP
                                                                                                                                          2⤵
                                                                                                                                            PID:418
                                                                                                                                        • /bin/sh
                                                                                                                                          sh -c "iptables -I OUTPUT -p tcp --sport 50023 -j DROP"
                                                                                                                                          1⤵
                                                                                                                                            PID:419
                                                                                                                                            • /sbin/iptables
                                                                                                                                              iptables -I OUTPUT -p tcp --sport 50023 -j DROP
                                                                                                                                              2⤵
                                                                                                                                                PID:420
                                                                                                                                            • /bin/sh
                                                                                                                                              sh -c "iptables -I OUTPUT -p tcp --sport 35000 -j DROP"
                                                                                                                                              1⤵
                                                                                                                                                PID:421
                                                                                                                                                • /sbin/iptables
                                                                                                                                                  iptables -I OUTPUT -p tcp --sport 35000 -j DROP
                                                                                                                                                  2⤵
                                                                                                                                                    PID:422
                                                                                                                                                • /bin/sh
                                                                                                                                                  sh -c "iptables -I INPUT -p tcp --dport 7547 -j DROP"
                                                                                                                                                  1⤵
                                                                                                                                                    PID:423
                                                                                                                                                    • /sbin/iptables
                                                                                                                                                      iptables -I INPUT -p tcp --dport 7547 -j DROP
                                                                                                                                                      2⤵
                                                                                                                                                        PID:424
                                                                                                                                                    • /bin/sh
                                                                                                                                                      sh -c "iptables -I OUTPUT -p tcp --sport 7547 -j DROP"
                                                                                                                                                      1⤵
                                                                                                                                                        PID:425
                                                                                                                                                        • /sbin/iptables
                                                                                                                                                          iptables -I OUTPUT -p tcp --sport 7547 -j DROP
                                                                                                                                                          2⤵
                                                                                                                                                            PID:426
                                                                                                                                                        • /bin/sh
                                                                                                                                                          sh -c "iptables -I INPUT -p udp --destination-port 11211 -j ACCEPT"
                                                                                                                                                          1⤵
                                                                                                                                                            PID:427
                                                                                                                                                            • /sbin/iptables
                                                                                                                                                              iptables -I INPUT -p udp --destination-port 11211 -j ACCEPT
                                                                                                                                                              2⤵
                                                                                                                                                                PID:428
                                                                                                                                                            • /bin/sh
                                                                                                                                                              sh -c "iptables -I OUTPUT -p udp --source-port 11211 -j ACCEPT"
                                                                                                                                                              1⤵
                                                                                                                                                                PID:429
                                                                                                                                                                • /sbin/iptables
                                                                                                                                                                  iptables -I OUTPUT -p udp --source-port 11211 -j ACCEPT
                                                                                                                                                                  2⤵
                                                                                                                                                                    PID:430
                                                                                                                                                                • /bin/sh
                                                                                                                                                                  sh -c "iptables -I PREROUTING -t nat -p udp --destination-port 11211 -j ACCEPT"
                                                                                                                                                                  1⤵
                                                                                                                                                                    PID:431
                                                                                                                                                                    • /sbin/iptables
                                                                                                                                                                      iptables -I PREROUTING -t nat -p udp --destination-port 11211 -j ACCEPT
                                                                                                                                                                      2⤵
                                                                                                                                                                        PID:432
                                                                                                                                                                    • /bin/sh
                                                                                                                                                                      sh -c "iptables -I POSTROUTING -t nat -p udp --source-port 11211 -j ACCEPT"
                                                                                                                                                                      1⤵
                                                                                                                                                                        PID:433
                                                                                                                                                                        • /sbin/iptables
                                                                                                                                                                          iptables -I POSTROUTING -t nat -p udp --source-port 11211 -j ACCEPT
                                                                                                                                                                          2⤵
                                                                                                                                                                            PID:434
                                                                                                                                                                        • /bin/sh
                                                                                                                                                                          sh -c "iptables -I INPUT -p udp --dport 11211 -j ACCEPT"
                                                                                                                                                                          1⤵
                                                                                                                                                                            PID:435
                                                                                                                                                                            • /sbin/iptables
                                                                                                                                                                              iptables -I INPUT -p udp --dport 11211 -j ACCEPT
                                                                                                                                                                              2⤵
                                                                                                                                                                                PID:436
                                                                                                                                                                            • /bin/sh
                                                                                                                                                                              sh -c "iptables -I OUTPUT -p udp --sport 11211 -j ACCEPT"
                                                                                                                                                                              1⤵
                                                                                                                                                                                PID:437
                                                                                                                                                                                • /sbin/iptables
                                                                                                                                                                                  iptables -I OUTPUT -p udp --sport 11211 -j ACCEPT
                                                                                                                                                                                  2⤵
                                                                                                                                                                                    PID:438
                                                                                                                                                                                • /bin/sh
                                                                                                                                                                                  sh -c "iptables -I PREROUTING -t nat -p udp --dport 11211 -j ACCEPT"
                                                                                                                                                                                  1⤵
                                                                                                                                                                                    PID:439
                                                                                                                                                                                    • /sbin/iptables
                                                                                                                                                                                      iptables -I PREROUTING -t nat -p udp --dport 11211 -j ACCEPT
                                                                                                                                                                                      2⤵
                                                                                                                                                                                        PID:440
                                                                                                                                                                                    • /bin/sh
                                                                                                                                                                                      sh -c "iptables -I POSTROUTING -t nat -p udp --sport 11211 -j ACCEPT"
                                                                                                                                                                                      1⤵
                                                                                                                                                                                        PID:441
                                                                                                                                                                                        • /sbin/iptables
                                                                                                                                                                                          iptables -I POSTROUTING -t nat -p udp --sport 11211 -j ACCEPT
                                                                                                                                                                                          2⤵
                                                                                                                                                                                            PID:442

                                                                                                                                                                                        Network

                                                                                                                                                                                        MITRE ATT&CK Enterprise v6

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