Analysis

  • max time kernel
    136s
  • max time network
    144s
  • platform
    debian-9_mips
  • resource
    debian9-mipsbe-20240611-en
  • resource tags

    arch:mipsimage:debian9-mipsbe-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
  • submitted
    20/01/2025, 13:51

General

  • Target

    b5cf68c7cb5bb2d21d60bf6654926f61566d95bfd7c9f9e182d032f1da5b4605

  • Size

    132KB

  • MD5

    a73ddd6ec22462db955439f665cad4e6

  • SHA1

    ac6962542a4b23ac13bddff22f8df9aeb702ef12

  • SHA256

    b5cf68c7cb5bb2d21d60bf6654926f61566d95bfd7c9f9e182d032f1da5b4605

  • SHA512

    92a52f68a7324c4d5876e1f7e2cb87d14b8604b057ceee2e537815568faa96abf576a22111c5c976eff72ab9015f1261b2331d4b4d711f4e62c8eb403c2377aa

  • SSDEEP

    3072:2glZ3FtCKXhkmHtZ9TEKzjfj/WMngyIfsJ0F7xPtoM:2IIKXhZtL7jOTyIG87Xl

Malware Config

Signatures

  • Contacts a large (9746) amount of remote hosts 1 TTPs

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

  • Patched UPX-packed file 1 IoCs

    Sample is packed with UPX but required header fields are zeroed out to prevent unpacking with the default UPX tool.

  • Modifies Watchdog functionality 1 TTPs 2 IoCs

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

  • Creates a large amount of network flows 1 TTPs

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

  • Enumerates active TCP sockets 1 TTPs 1 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Modifies init.d 2 TTPs 4 IoCs

    Adds/modifies system service, likely for persistence.

  • Reads system routing table 1 TTPs 1 IoCs

    Gets active network interfaces from /proc virtual filesystem.

  • Writes file to system bin folder 2 IoCs
  • UPX packed file 1 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Changes its process name 1 IoCs
  • Reads system network configuration 1 TTPs 3 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • System Network Configuration Discovery 1 TTPs 22 IoCs

    Adversaries may gather information about the network configuration of a system.

  • Writes file to tmp directory 2 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/b5cf68c7cb5bb2d21d60bf6654926f61566d95bfd7c9f9e182d032f1da5b4605
    /tmp/b5cf68c7cb5bb2d21d60bf6654926f61566d95bfd7c9f9e182d032f1da5b4605
    1⤵
    • Modifies Watchdog functionality
    • Enumerates active TCP sockets
    • Modifies init.d
    • Reads system routing table
    • Writes file to system bin folder
    • Changes its process name
    • Reads system network configuration
    • Reads runtime system information
    • Writes file to tmp directory
    PID:712
    • /bin/sh
      sh -c "killall -9 telnetd utelnetd scfgmgr"
      2⤵
        PID:716
        • /usr/bin/killall
          killall -9 telnetd utelnetd scfgmgr
          3⤵
          • Reads runtime system information
          PID:718
      • /bin/sh
        sh -c "iptables -I INPUT -p tcp --destination-port 59739 -j ACCEPT"
        2⤵
          PID:750
          • /sbin/iptables
            iptables -I INPUT -p tcp --destination-port 59739 -j ACCEPT
            3⤵
              PID:751
          • /bin/sh
            sh -c "iptables -I OUTPUT -p tcp --source-port 59739 -j ACCEPT"
            2⤵
            • System Network Configuration Discovery
            PID:754
            • /sbin/iptables
              iptables -I OUTPUT -p tcp --source-port 59739 -j ACCEPT
              3⤵
                PID:757
            • /bin/sh
              sh -c "iptables -I PREROUTING -t nat -p tcp --destination-port 59739 -j ACCEPT"
              2⤵
                PID:758
                • /sbin/iptables
                  iptables -I PREROUTING -t nat -p tcp --destination-port 59739 -j ACCEPT
                  3⤵
                    PID:759
                • /bin/sh
                  sh -c "iptables -I POSTROUTING -t nat -p tcp --source-port 59739 -j ACCEPT"
                  2⤵
                  • System Network Configuration Discovery
                  PID:765
                  • /sbin/iptables
                    iptables -I POSTROUTING -t nat -p tcp --source-port 59739 -j ACCEPT
                    3⤵
                      PID:768
                  • /bin/sh
                    sh -c "iptables -I INPUT -p tcp --destination-port 22 -j DROP"
                    2⤵
                      PID:766
                      • /sbin/iptables
                        iptables -I INPUT -p tcp --destination-port 22 -j DROP
                        3⤵
                          PID:767
                      • /bin/sh
                        sh -c "iptables -I INPUT -p tcp --destination-port 23 -j DROP"
                        2⤵
                          PID:769
                          • /sbin/iptables
                            iptables -I INPUT -p tcp --destination-port 23 -j DROP
                            3⤵
                              PID:771
                          • /bin/sh
                            sh -c "iptables -I INPUT -p tcp --dport 59739 -j ACCEPT"
                            2⤵
                              PID:770
                              • /sbin/iptables
                                iptables -I INPUT -p tcp --dport 59739 -j ACCEPT
                                3⤵
                                  PID:772
                              • /bin/sh
                                sh -c "iptables -I INPUT -p tcp --destination-port 2323 -j DROP"
                                2⤵
                                  PID:773
                                  • /sbin/iptables
                                    iptables -I INPUT -p tcp --destination-port 2323 -j DROP
                                    3⤵
                                      PID:774
                                  • /bin/sh
                                    sh -c "iptables -I OUTPUT -p tcp --sport 59739 -j ACCEPT"
                                    2⤵
                                    • System Network Configuration Discovery
                                    PID:775
                                    • /sbin/iptables
                                      iptables -I OUTPUT -p tcp --sport 59739 -j ACCEPT
                                      3⤵
                                        PID:776
                                    • /bin/sh
                                      sh -c "iptables -I PREROUTING -t nat -p tcp --dport 59739 -j ACCEPT"
                                      2⤵
                                        PID:777
                                        • /sbin/iptables
                                          iptables -I PREROUTING -t nat -p tcp --dport 59739 -j ACCEPT
                                          3⤵
                                            PID:778
                                        • /bin/sh
                                          sh -c "iptables -I POSTROUTING -t nat -p tcp --sport 59739 -j ACCEPT"
                                          2⤵
                                          • System Network Configuration Discovery
                                          PID:779
                                          • /sbin/iptables
                                            iptables -I POSTROUTING -t nat -p tcp --sport 59739 -j ACCEPT
                                            3⤵
                                              PID:780
                                          • /bin/sh
                                            sh -c "iptables -I OUTPUT -p tcp --source-port 22 -j DROP"
                                            2⤵
                                            • System Network Configuration Discovery
                                            PID:781
                                            • /sbin/iptables
                                              iptables -I OUTPUT -p tcp --source-port 22 -j DROP
                                              3⤵
                                                PID:782
                                            • /bin/sh
                                              sh -c "iptables -I OUTPUT -p tcp --source-port 23 -j DROP"
                                              2⤵
                                              • System Network Configuration Discovery
                                              PID:786
                                              • /sbin/iptables
                                                iptables -I OUTPUT -p tcp --source-port 23 -j DROP
                                                3⤵
                                                  PID:787
                                              • /bin/sh
                                                sh -c "iptables -I OUTPUT -p tcp --source-port 2323 -j DROP"
                                                2⤵
                                                • System Network Configuration Discovery
                                                PID:788
                                                • /sbin/iptables
                                                  iptables -I OUTPUT -p tcp --source-port 2323 -j DROP
                                                  3⤵
                                                    PID:789
                                                • /bin/sh
                                                  sh -c "iptables -I INPUT -p tcp --dport 22 -j DROP"
                                                  2⤵
                                                    PID:790
                                                    • /sbin/iptables
                                                      iptables -I INPUT -p tcp --dport 22 -j DROP
                                                      3⤵
                                                        PID:792
                                                    • /bin/sh
                                                      sh -c "iptables -I INPUT -p tcp --dport 23 -j DROP"
                                                      2⤵
                                                        PID:794
                                                        • /sbin/iptables
                                                          iptables -I INPUT -p tcp --dport 23 -j DROP
                                                          3⤵
                                                            PID:795
                                                        • /bin/sh
                                                          sh -c "iptables -I INPUT -p tcp --dport 2323 -j DROP"
                                                          2⤵
                                                            PID:796
                                                            • /sbin/iptables
                                                              iptables -I INPUT -p tcp --dport 2323 -j DROP
                                                              3⤵
                                                                PID:797
                                                            • /bin/sh
                                                              sh -c "iptables -I OUTPUT -p tcp --sport 22 -j DROP"
                                                              2⤵
                                                              • System Network Configuration Discovery
                                                              PID:799
                                                              • /sbin/iptables
                                                                iptables -I OUTPUT -p tcp --sport 22 -j DROP
                                                                3⤵
                                                                  PID:800
                                                              • /bin/sh
                                                                sh -c "iptables -I OUTPUT -p tcp --sport 23 -j DROP"
                                                                2⤵
                                                                • System Network Configuration Discovery
                                                                PID:802
                                                                • /sbin/iptables
                                                                  iptables -I OUTPUT -p tcp --sport 23 -j DROP
                                                                  3⤵
                                                                    PID:803
                                                                • /bin/sh
                                                                  sh -c "iptables -I OUTPUT -p tcp --sport 2323 -j DROP"
                                                                  2⤵
                                                                  • System Network Configuration Discovery
                                                                  PID:804
                                                                  • /sbin/iptables
                                                                    iptables -I OUTPUT -p tcp --sport 2323 -j DROP
                                                                    3⤵
                                                                      PID:805
                                                                  • /bin/sh
                                                                    sh -c "iptables -I INPUT -p tcp --destination-port 58000 -j DROP"
                                                                    2⤵
                                                                      PID:808
                                                                      • /sbin/iptables
                                                                        iptables -I INPUT -p tcp --destination-port 58000 -j DROP
                                                                        3⤵
                                                                          PID:809
                                                                      • /bin/sh
                                                                        sh -c "iptables -I OUTPUT -p tcp --source-port 58000 -j DROP"
                                                                        2⤵
                                                                        • System Network Configuration Discovery
                                                                        PID:810
                                                                        • /sbin/iptables
                                                                          iptables -I OUTPUT -p tcp --source-port 58000 -j DROP
                                                                          3⤵
                                                                            PID:811
                                                                        • /bin/sh
                                                                          sh -c "iptables -I INPUT -p tcp --dport 58000 -j DROP"
                                                                          2⤵
                                                                            PID:813
                                                                            • /sbin/iptables
                                                                              iptables -I INPUT -p tcp --dport 58000 -j DROP
                                                                              3⤵
                                                                                PID:814
                                                                            • /bin/sh
                                                                              sh -c "iptables -I OUTPUT -p tcp --sport 58000 -j DROP"
                                                                              2⤵
                                                                              • System Network Configuration Discovery
                                                                              PID:816
                                                                              • /sbin/iptables
                                                                                iptables -I OUTPUT -p tcp --sport 58000 -j DROP
                                                                                3⤵
                                                                                  PID:817
                                                                              • /bin/sh
                                                                                sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer URL \"http://127.0.0.1\""
                                                                                2⤵
                                                                                  PID:818
                                                                                • /bin/sh
                                                                                  sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer ConnectionRequestPassword \"acsMozi\""
                                                                                  2⤵
                                                                                    PID:820
                                                                                  • /bin/sh
                                                                                    sh -c "iptables -I INPUT -p tcp --destination-port 35000 -j DROP"
                                                                                    2⤵
                                                                                      PID:821
                                                                                      • /sbin/iptables
                                                                                        iptables -I INPUT -p tcp --destination-port 35000 -j DROP
                                                                                        3⤵
                                                                                          PID:823
                                                                                      • /bin/sh
                                                                                        sh -c "iptables -I INPUT -p tcp --destination-port 50023 -j DROP"
                                                                                        2⤵
                                                                                          PID:824
                                                                                          • /sbin/iptables
                                                                                            iptables -I INPUT -p tcp --destination-port 50023 -j DROP
                                                                                            3⤵
                                                                                              PID:825
                                                                                          • /bin/sh
                                                                                            sh -c "iptables -I OUTPUT -p tcp --source-port 50023 -j DROP"
                                                                                            2⤵
                                                                                            • System Network Configuration Discovery
                                                                                            PID:827
                                                                                            • /sbin/iptables
                                                                                              iptables -I OUTPUT -p tcp --source-port 50023 -j DROP
                                                                                              3⤵
                                                                                                PID:828
                                                                                            • /bin/sh
                                                                                              sh -c "iptables -I OUTPUT -p tcp --source-port 35000 -j DROP"
                                                                                              2⤵
                                                                                              • System Network Configuration Discovery
                                                                                              PID:830
                                                                                              • /sbin/iptables
                                                                                                iptables -I OUTPUT -p tcp --source-port 35000 -j DROP
                                                                                                3⤵
                                                                                                  PID:831
                                                                                              • /bin/sh
                                                                                                sh -c "iptables -I INPUT -p tcp --destination-port 7547 -j DROP"
                                                                                                2⤵
                                                                                                  PID:832
                                                                                                  • /sbin/iptables
                                                                                                    iptables -I INPUT -p tcp --destination-port 7547 -j DROP
                                                                                                    3⤵
                                                                                                      PID:833
                                                                                                  • /bin/sh
                                                                                                    sh -c "iptables -I OUTPUT -p tcp --source-port 7547 -j DROP"
                                                                                                    2⤵
                                                                                                    • System Network Configuration Discovery
                                                                                                    PID:835
                                                                                                    • /sbin/iptables
                                                                                                      iptables -I OUTPUT -p tcp --source-port 7547 -j DROP
                                                                                                      3⤵
                                                                                                        PID:837
                                                                                                    • /bin/sh
                                                                                                      sh -c "iptables -I INPUT -p tcp --dport 35000 -j DROP"
                                                                                                      2⤵
                                                                                                        PID:838
                                                                                                        • /sbin/iptables
                                                                                                          iptables -I INPUT -p tcp --dport 35000 -j DROP
                                                                                                          3⤵
                                                                                                            PID:839
                                                                                                        • /bin/sh
                                                                                                          sh -c "iptables -I INPUT -p tcp --dport 50023 -j DROP"
                                                                                                          2⤵
                                                                                                            PID:840
                                                                                                            • /sbin/iptables
                                                                                                              iptables -I INPUT -p tcp --dport 50023 -j DROP
                                                                                                              3⤵
                                                                                                                PID:842
                                                                                                            • /bin/sh
                                                                                                              sh -c "iptables -I OUTPUT -p tcp --sport 50023 -j DROP"
                                                                                                              2⤵
                                                                                                              • System Network Configuration Discovery
                                                                                                              PID:844
                                                                                                              • /sbin/iptables
                                                                                                                iptables -I OUTPUT -p tcp --sport 50023 -j DROP
                                                                                                                3⤵
                                                                                                                  PID:845
                                                                                                              • /bin/sh
                                                                                                                sh -c "iptables -I OUTPUT -p tcp --sport 35000 -j DROP"
                                                                                                                2⤵
                                                                                                                • System Network Configuration Discovery
                                                                                                                PID:846
                                                                                                                • /sbin/iptables
                                                                                                                  iptables -I OUTPUT -p tcp --sport 35000 -j DROP
                                                                                                                  3⤵
                                                                                                                    PID:847
                                                                                                                • /bin/sh
                                                                                                                  sh -c "iptables -I INPUT -p tcp --dport 7547 -j DROP"
                                                                                                                  2⤵
                                                                                                                    PID:849
                                                                                                                    • /sbin/iptables
                                                                                                                      iptables -I INPUT -p tcp --dport 7547 -j DROP
                                                                                                                      3⤵
                                                                                                                        PID:851
                                                                                                                    • /bin/sh
                                                                                                                      sh -c "iptables -I OUTPUT -p tcp --sport 7547 -j DROP"
                                                                                                                      2⤵
                                                                                                                      • System Network Configuration Discovery
                                                                                                                      PID:852
                                                                                                                      • /sbin/iptables
                                                                                                                        iptables -I OUTPUT -p tcp --sport 7547 -j DROP
                                                                                                                        3⤵
                                                                                                                          PID:853
                                                                                                                      • /bin/sh
                                                                                                                        sh -c "iptables -I INPUT -p udp --destination-port 62317 -j ACCEPT"
                                                                                                                        2⤵
                                                                                                                          PID:876
                                                                                                                          • /sbin/iptables
                                                                                                                            iptables -I INPUT -p udp --destination-port 62317 -j ACCEPT
                                                                                                                            3⤵
                                                                                                                              PID:878
                                                                                                                          • /bin/sh
                                                                                                                            sh -c "iptables -I OUTPUT -p udp --source-port 62317 -j ACCEPT"
                                                                                                                            2⤵
                                                                                                                            • System Network Configuration Discovery
                                                                                                                            PID:881
                                                                                                                            • /sbin/iptables
                                                                                                                              iptables -I OUTPUT -p udp --source-port 62317 -j ACCEPT
                                                                                                                              3⤵
                                                                                                                                PID:882
                                                                                                                            • /bin/sh
                                                                                                                              sh -c "iptables -I PREROUTING -t nat -p udp --destination-port 62317 -j ACCEPT"
                                                                                                                              2⤵
                                                                                                                                PID:883
                                                                                                                                • /sbin/iptables
                                                                                                                                  iptables -I PREROUTING -t nat -p udp --destination-port 62317 -j ACCEPT
                                                                                                                                  3⤵
                                                                                                                                    PID:884
                                                                                                                                • /bin/sh
                                                                                                                                  sh -c "iptables -I POSTROUTING -t nat -p udp --source-port 62317 -j ACCEPT"
                                                                                                                                  2⤵
                                                                                                                                  • System Network Configuration Discovery
                                                                                                                                  PID:886
                                                                                                                                  • /sbin/iptables
                                                                                                                                    iptables -I POSTROUTING -t nat -p udp --source-port 62317 -j ACCEPT
                                                                                                                                    3⤵
                                                                                                                                      PID:887
                                                                                                                                  • /bin/sh
                                                                                                                                    sh -c "iptables -I INPUT -p udp --dport 62317 -j ACCEPT"
                                                                                                                                    2⤵
                                                                                                                                      PID:888
                                                                                                                                      • /sbin/iptables
                                                                                                                                        iptables -I INPUT -p udp --dport 62317 -j ACCEPT
                                                                                                                                        3⤵
                                                                                                                                          PID:889
                                                                                                                                      • /bin/sh
                                                                                                                                        sh -c "iptables -I OUTPUT -p udp --sport 62317 -j ACCEPT"
                                                                                                                                        2⤵
                                                                                                                                        • System Network Configuration Discovery
                                                                                                                                        PID:890
                                                                                                                                        • /sbin/iptables
                                                                                                                                          iptables -I OUTPUT -p udp --sport 62317 -j ACCEPT
                                                                                                                                          3⤵
                                                                                                                                            PID:891
                                                                                                                                        • /bin/sh
                                                                                                                                          sh -c "iptables -I PREROUTING -t nat -p udp --dport 62317 -j ACCEPT"
                                                                                                                                          2⤵
                                                                                                                                            PID:892
                                                                                                                                            • /sbin/iptables
                                                                                                                                              iptables -I PREROUTING -t nat -p udp --dport 62317 -j ACCEPT
                                                                                                                                              3⤵
                                                                                                                                                PID:893
                                                                                                                                            • /bin/sh
                                                                                                                                              sh -c "iptables -I POSTROUTING -t nat -p udp --sport 62317 -j ACCEPT"
                                                                                                                                              2⤵
                                                                                                                                              • System Network Configuration Discovery
                                                                                                                                              PID:894
                                                                                                                                              • /sbin/iptables
                                                                                                                                                iptables -I POSTROUTING -t nat -p udp --sport 62317 -j ACCEPT
                                                                                                                                                3⤵
                                                                                                                                                  PID:896

                                                                                                                                            Network

                                                                                                                                            MITRE ATT&CK Enterprise v15

                                                                                                                                            Replay Monitor

                                                                                                                                            Loading Replay Monitor...

                                                                                                                                            Downloads

                                                                                                                                            • /etc/rcS.d/S95baby.sh

                                                                                                                                              Filesize

                                                                                                                                              25B

                                                                                                                                              MD5

                                                                                                                                              1b3235ba10fc04836c941d3d27301956

                                                                                                                                              SHA1

                                                                                                                                              8909655763143702430b8c58b3ae3b04cfd3a29c

                                                                                                                                              SHA256

                                                                                                                                              01ba1fb41632594997a41d0c3a911ae5b3034d566ebb991ef76ad76e6f9e283a

                                                                                                                                              SHA512

                                                                                                                                              98bdb5c266222ccbd63b6f80c87e501c8033dc53b0513d300b8da50e39a207a0b69f8cd3ecc4a128dec340a1186779fedd1049c9b0a70e90d2cb3ae6ebfa4c4d

                                                                                                                                            • /tmp/.config

                                                                                                                                              Filesize

                                                                                                                                              147B

                                                                                                                                              MD5

                                                                                                                                              b8a8f466da2abb274b5da8a184d10172

                                                                                                                                              SHA1

                                                                                                                                              2444c38c3462702bf815cf4e37100214824b76e6

                                                                                                                                              SHA256

                                                                                                                                              74c9b3a712c3e883f3d0181d64bb83d4aa02f1619615f4f584441e4ae4de0936

                                                                                                                                              SHA512

                                                                                                                                              33dfaaae402915c324acb901a94deac1c6f4b2773bdd9fc5e61fed5fd848570a699abcf3f178f8c2b2bdf527dd10a40edaefbe43b94f6e2f1d8e69ebd681768f

                                                                                                                                            • /usr/networks

                                                                                                                                              Filesize

                                                                                                                                              132KB

                                                                                                                                              MD5

                                                                                                                                              a73ddd6ec22462db955439f665cad4e6

                                                                                                                                              SHA1

                                                                                                                                              ac6962542a4b23ac13bddff22f8df9aeb702ef12

                                                                                                                                              SHA256

                                                                                                                                              b5cf68c7cb5bb2d21d60bf6654926f61566d95bfd7c9f9e182d032f1da5b4605

                                                                                                                                              SHA512

                                                                                                                                              92a52f68a7324c4d5876e1f7e2cb87d14b8604b057ceee2e537815568faa96abf576a22111c5c976eff72ab9015f1261b2331d4b4d711f4e62c8eb403c2377aa