Analysis

  • max time kernel
    925s
  • max time network
    981s
  • platform
    debian-9_mipsel
  • resource
    debian9-mipsel-20240611-en
  • resource tags

    arch:mipselimage:debian9-mipsel-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem
  • submitted
    04-10-2024 20:51

General

  • Target

    f6c97b1e2ed02578ca1066c8235ba4f991e645f89012406c639dbccc6582eec8

  • Size

    134KB

  • MD5

    3849f30b51a5c49e8d1546960cc206c7

  • SHA1

    61c74136534b826059c63221a2373dc0613a47b7

  • SHA256

    f6c97b1e2ed02578ca1066c8235ba4f991e645f89012406c639dbccc6582eec8

  • SHA512

    43d79293d1fbf716111c27e50df95a0860a0d706079625fa2b8a6b57c5ee06fa7b5b6b8c0acae33714a2181686426728513c990534e44b6f03a05dde0629ab86

  • SSDEEP

    3072:biMYFJvw6Yh0b1gKobtCGCmCRlrisfrYm:fYFJvwe1gKCYVl2szN

Malware Config

Signatures

  • Contacts a large (73883) amount of remote hosts 1 TTPs

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

  • Creates a large amount of network flows 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.

  • 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/f6c97b1e2ed02578ca1066c8235ba4f991e645f89012406c639dbccc6582eec8
    /tmp/f6c97b1e2ed02578ca1066c8235ba4f991e645f89012406c639dbccc6582eec8
    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:707
    • /bin/sh
      sh -c "killall -9 telnetd utelnetd scfgmgr"
      2⤵
        PID:711
        • /usr/bin/killall
          killall -9 telnetd utelnetd scfgmgr
          3⤵
          • Reads runtime system information
          PID:713
      • /bin/sh
        sh -c "iptables -I INPUT -p tcp --destination-port 45877 -j ACCEPT"
        2⤵
          PID:817
          • /sbin/iptables
            iptables -I INPUT -p tcp --destination-port 45877 -j ACCEPT
            3⤵
              PID:822
          • /bin/sh
            sh -c "iptables -I INPUT -p tcp --destination-port 22 -j DROP"
            2⤵
              PID:821
              • /sbin/iptables
                iptables -I INPUT -p tcp --destination-port 22 -j DROP
                3⤵
                  PID:823
              • /bin/sh
                sh -c "iptables -I INPUT -p tcp --destination-port 23 -j DROP"
                2⤵
                  PID:826
                  • /sbin/iptables
                    iptables -I INPUT -p tcp --destination-port 23 -j DROP
                    3⤵
                      PID:829
                  • /bin/sh
                    sh -c "iptables -I INPUT -p tcp --destination-port 2323 -j DROP"
                    2⤵
                      PID:830
                      • /sbin/iptables
                        iptables -I INPUT -p tcp --destination-port 2323 -j DROP
                        3⤵
                          PID:831
                      • /bin/sh
                        sh -c "iptables -I OUTPUT -p tcp --source-port 22 -j DROP"
                        2⤵
                        • System Network Configuration Discovery
                        PID:832
                        • /sbin/iptables
                          iptables -I OUTPUT -p tcp --source-port 22 -j DROP
                          3⤵
                            PID:833
                        • /bin/sh
                          sh -c "iptables -I OUTPUT -p tcp --source-port 45877 -j ACCEPT"
                          2⤵
                          • System Network Configuration Discovery
                          PID:834
                          • /sbin/iptables
                            iptables -I OUTPUT -p tcp --source-port 45877 -j ACCEPT
                            3⤵
                              PID:836
                          • /bin/sh
                            sh -c "iptables -I OUTPUT -p tcp --source-port 23 -j DROP"
                            2⤵
                            • System Network Configuration Discovery
                            PID:835
                            • /sbin/iptables
                              iptables -I OUTPUT -p tcp --source-port 23 -j DROP
                              3⤵
                                PID:837
                            • /bin/sh
                              sh -c "iptables -I PREROUTING -t nat -p tcp --destination-port 45877 -j ACCEPT"
                              2⤵
                                PID:838
                                • /sbin/iptables
                                  iptables -I PREROUTING -t nat -p tcp --destination-port 45877 -j ACCEPT
                                  3⤵
                                    PID:840
                                • /bin/sh
                                  sh -c "iptables -I OUTPUT -p tcp --source-port 2323 -j DROP"
                                  2⤵
                                  • System Network Configuration Discovery
                                  PID:839
                                  • /sbin/iptables
                                    iptables -I OUTPUT -p tcp --source-port 2323 -j DROP
                                    3⤵
                                      PID:841
                                  • /bin/sh
                                    sh -c "iptables -I POSTROUTING -t nat -p tcp --source-port 45877 -j ACCEPT"
                                    2⤵
                                    • System Network Configuration Discovery
                                    PID:847
                                    • /sbin/iptables
                                      iptables -I POSTROUTING -t nat -p tcp --source-port 45877 -j ACCEPT
                                      3⤵
                                        PID:851
                                    • /bin/sh
                                      sh -c "iptables -I INPUT -p tcp --dport 45877 -j ACCEPT"
                                      2⤵
                                        PID:852
                                        • /sbin/iptables
                                          iptables -I INPUT -p tcp --dport 45877 -j ACCEPT
                                          3⤵
                                            PID:853
                                        • /bin/sh
                                          sh -c "iptables -I OUTPUT -p tcp --sport 45877 -j ACCEPT"
                                          2⤵
                                          • System Network Configuration Discovery
                                          PID:854
                                          • /sbin/iptables
                                            iptables -I OUTPUT -p tcp --sport 45877 -j ACCEPT
                                            3⤵
                                              PID:855
                                          • /bin/sh
                                            sh -c "iptables -I INPUT -p tcp --dport 22 -j DROP"
                                            2⤵
                                              PID:856
                                              • /sbin/iptables
                                                iptables -I INPUT -p tcp --dport 22 -j DROP
                                                3⤵
                                                  PID:857
                                              • /bin/sh
                                                sh -c "iptables -I INPUT -p tcp --dport 23 -j DROP"
                                                2⤵
                                                  PID:858
                                                  • /sbin/iptables
                                                    iptables -I INPUT -p tcp --dport 23 -j DROP
                                                    3⤵
                                                      PID:859
                                                  • /bin/sh
                                                    sh -c "iptables -I INPUT -p tcp --dport 2323 -j DROP"
                                                    2⤵
                                                      PID:860
                                                      • /sbin/iptables
                                                        iptables -I INPUT -p tcp --dport 2323 -j DROP
                                                        3⤵
                                                          PID:861
                                                      • /bin/sh
                                                        sh -c "iptables -I OUTPUT -p tcp --sport 22 -j DROP"
                                                        2⤵
                                                        • System Network Configuration Discovery
                                                        PID:862
                                                        • /sbin/iptables
                                                          iptables -I OUTPUT -p tcp --sport 22 -j DROP
                                                          3⤵
                                                            PID:863
                                                        • /bin/sh
                                                          sh -c "iptables -I PREROUTING -t nat -p tcp --dport 45877 -j ACCEPT"
                                                          2⤵
                                                            PID:864
                                                            • /sbin/iptables
                                                              iptables -I PREROUTING -t nat -p tcp --dport 45877 -j ACCEPT
                                                              3⤵
                                                                PID:865
                                                            • /bin/sh
                                                              sh -c "iptables -I OUTPUT -p tcp --sport 23 -j DROP"
                                                              2⤵
                                                              • System Network Configuration Discovery
                                                              PID:866
                                                              • /sbin/iptables
                                                                iptables -I OUTPUT -p tcp --sport 23 -j DROP
                                                                3⤵
                                                                  PID:867
                                                              • /bin/sh
                                                                sh -c "iptables -I POSTROUTING -t nat -p tcp --sport 45877 -j ACCEPT"
                                                                2⤵
                                                                • System Network Configuration Discovery
                                                                PID:868
                                                                • /sbin/iptables
                                                                  iptables -I POSTROUTING -t nat -p tcp --sport 45877 -j ACCEPT
                                                                  3⤵
                                                                    PID:869
                                                                • /bin/sh
                                                                  sh -c "iptables -I OUTPUT -p tcp --sport 2323 -j DROP"
                                                                  2⤵
                                                                  • System Network Configuration Discovery
                                                                  PID:870
                                                                  • /sbin/iptables
                                                                    iptables -I OUTPUT -p tcp --sport 2323 -j DROP
                                                                    3⤵
                                                                      PID:871
                                                                  • /bin/sh
                                                                    sh -c "iptables -I INPUT -p tcp --destination-port 58000 -j DROP"
                                                                    2⤵
                                                                      PID:872
                                                                      • /sbin/iptables
                                                                        iptables -I INPUT -p tcp --destination-port 58000 -j DROP
                                                                        3⤵
                                                                          PID:873
                                                                      • /bin/sh
                                                                        sh -c "iptables -I OUTPUT -p tcp --source-port 58000 -j DROP"
                                                                        2⤵
                                                                        • System Network Configuration Discovery
                                                                        PID:874
                                                                        • /sbin/iptables
                                                                          iptables -I OUTPUT -p tcp --source-port 58000 -j DROP
                                                                          3⤵
                                                                            PID:875
                                                                        • /bin/sh
                                                                          sh -c "iptables -I INPUT -p tcp --dport 58000 -j DROP"
                                                                          2⤵
                                                                            PID:876
                                                                            • /sbin/iptables
                                                                              iptables -I INPUT -p tcp --dport 58000 -j DROP
                                                                              3⤵
                                                                                PID:877
                                                                            • /bin/sh
                                                                              sh -c "iptables -I OUTPUT -p tcp --sport 58000 -j DROP"
                                                                              2⤵
                                                                              • System Network Configuration Discovery
                                                                              PID:878
                                                                              • /sbin/iptables
                                                                                iptables -I OUTPUT -p tcp --sport 58000 -j DROP
                                                                                3⤵
                                                                                  PID:879
                                                                              • /bin/sh
                                                                                sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer URL \"http://127.0.0.1\""
                                                                                2⤵
                                                                                  PID:880
                                                                                • /bin/sh
                                                                                  sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer ConnectionRequestPassword \"acsMozi\""
                                                                                  2⤵
                                                                                    PID:881
                                                                                  • /bin/sh
                                                                                    sh -c "iptables -I INPUT -p tcp --destination-port 35000 -j DROP"
                                                                                    2⤵
                                                                                      PID:882
                                                                                      • /sbin/iptables
                                                                                        iptables -I INPUT -p tcp --destination-port 35000 -j DROP
                                                                                        3⤵
                                                                                          PID:883
                                                                                      • /bin/sh
                                                                                        sh -c "iptables -I INPUT -p tcp --destination-port 50023 -j DROP"
                                                                                        2⤵
                                                                                          PID:884
                                                                                          • /sbin/iptables
                                                                                            iptables -I INPUT -p tcp --destination-port 50023 -j DROP
                                                                                            3⤵
                                                                                              PID:885
                                                                                          • /bin/sh
                                                                                            sh -c "iptables -I OUTPUT -p tcp --source-port 50023 -j DROP"
                                                                                            2⤵
                                                                                            • System Network Configuration Discovery
                                                                                            PID:886
                                                                                            • /sbin/iptables
                                                                                              iptables -I OUTPUT -p tcp --source-port 50023 -j DROP
                                                                                              3⤵
                                                                                                PID:887
                                                                                            • /bin/sh
                                                                                              sh -c "iptables -I OUTPUT -p tcp --source-port 35000 -j DROP"
                                                                                              2⤵
                                                                                              • System Network Configuration Discovery
                                                                                              PID:888
                                                                                              • /sbin/iptables
                                                                                                iptables -I OUTPUT -p tcp --source-port 35000 -j DROP
                                                                                                3⤵
                                                                                                  PID:889
                                                                                              • /bin/sh
                                                                                                sh -c "iptables -I INPUT -p tcp --destination-port 7547 -j DROP"
                                                                                                2⤵
                                                                                                  PID:890
                                                                                                  • /sbin/iptables
                                                                                                    iptables -I INPUT -p tcp --destination-port 7547 -j DROP
                                                                                                    3⤵
                                                                                                      PID:891
                                                                                                  • /bin/sh
                                                                                                    sh -c "iptables -I OUTPUT -p tcp --source-port 7547 -j DROP"
                                                                                                    2⤵
                                                                                                    • System Network Configuration Discovery
                                                                                                    PID:892
                                                                                                    • /sbin/iptables
                                                                                                      iptables -I OUTPUT -p tcp --source-port 7547 -j DROP
                                                                                                      3⤵
                                                                                                        PID:893
                                                                                                    • /bin/sh
                                                                                                      sh -c "iptables -I INPUT -p tcp --dport 35000 -j DROP"
                                                                                                      2⤵
                                                                                                        PID:894
                                                                                                        • /sbin/iptables
                                                                                                          iptables -I INPUT -p tcp --dport 35000 -j DROP
                                                                                                          3⤵
                                                                                                            PID:895
                                                                                                        • /bin/sh
                                                                                                          sh -c "iptables -I INPUT -p tcp --dport 50023 -j DROP"
                                                                                                          2⤵
                                                                                                            PID:896
                                                                                                            • /sbin/iptables
                                                                                                              iptables -I INPUT -p tcp --dport 50023 -j DROP
                                                                                                              3⤵
                                                                                                                PID:897
                                                                                                            • /bin/sh
                                                                                                              sh -c "iptables -I OUTPUT -p tcp --sport 50023 -j DROP"
                                                                                                              2⤵
                                                                                                              • System Network Configuration Discovery
                                                                                                              PID:898
                                                                                                              • /sbin/iptables
                                                                                                                iptables -I OUTPUT -p tcp --sport 50023 -j DROP
                                                                                                                3⤵
                                                                                                                  PID:899
                                                                                                              • /bin/sh
                                                                                                                sh -c "iptables -I OUTPUT -p tcp --sport 35000 -j DROP"
                                                                                                                2⤵
                                                                                                                • System Network Configuration Discovery
                                                                                                                PID:900
                                                                                                                • /sbin/iptables
                                                                                                                  iptables -I OUTPUT -p tcp --sport 35000 -j DROP
                                                                                                                  3⤵
                                                                                                                    PID:901
                                                                                                                • /bin/sh
                                                                                                                  sh -c "iptables -I INPUT -p tcp --dport 7547 -j DROP"
                                                                                                                  2⤵
                                                                                                                    PID:902
                                                                                                                    • /sbin/iptables
                                                                                                                      iptables -I INPUT -p tcp --dport 7547 -j DROP
                                                                                                                      3⤵
                                                                                                                        PID:903
                                                                                                                    • /bin/sh
                                                                                                                      sh -c "iptables -I OUTPUT -p tcp --sport 7547 -j DROP"
                                                                                                                      2⤵
                                                                                                                      • System Network Configuration Discovery
                                                                                                                      PID:904
                                                                                                                      • /sbin/iptables
                                                                                                                        iptables -I OUTPUT -p tcp --sport 7547 -j DROP
                                                                                                                        3⤵
                                                                                                                          PID:905
                                                                                                                      • /bin/sh
                                                                                                                        sh -c "iptables -I INPUT -p udp --destination-port 8082 -j ACCEPT"
                                                                                                                        2⤵
                                                                                                                          PID:907
                                                                                                                          • /sbin/iptables
                                                                                                                            iptables -I INPUT -p udp --destination-port 8082 -j ACCEPT
                                                                                                                            3⤵
                                                                                                                              PID:908
                                                                                                                          • /bin/sh
                                                                                                                            sh -c "iptables -I OUTPUT -p udp --source-port 8082 -j ACCEPT"
                                                                                                                            2⤵
                                                                                                                            • System Network Configuration Discovery
                                                                                                                            PID:909
                                                                                                                            • /sbin/iptables
                                                                                                                              iptables -I OUTPUT -p udp --source-port 8082 -j ACCEPT
                                                                                                                              3⤵
                                                                                                                                PID:910
                                                                                                                            • /bin/sh
                                                                                                                              sh -c "iptables -I PREROUTING -t nat -p udp --destination-port 8082 -j ACCEPT"
                                                                                                                              2⤵
                                                                                                                                PID:911
                                                                                                                                • /sbin/iptables
                                                                                                                                  iptables -I PREROUTING -t nat -p udp --destination-port 8082 -j ACCEPT
                                                                                                                                  3⤵
                                                                                                                                    PID:912
                                                                                                                                • /bin/sh
                                                                                                                                  sh -c "iptables -I POSTROUTING -t nat -p udp --source-port 8082 -j ACCEPT"
                                                                                                                                  2⤵
                                                                                                                                  • System Network Configuration Discovery
                                                                                                                                  PID:913
                                                                                                                                  • /sbin/iptables
                                                                                                                                    iptables -I POSTROUTING -t nat -p udp --source-port 8082 -j ACCEPT
                                                                                                                                    3⤵
                                                                                                                                      PID:915
                                                                                                                                  • /bin/sh
                                                                                                                                    sh -c "iptables -I INPUT -p udp --dport 8082 -j ACCEPT"
                                                                                                                                    2⤵
                                                                                                                                      PID:916
                                                                                                                                      • /sbin/iptables
                                                                                                                                        iptables -I INPUT -p udp --dport 8082 -j ACCEPT
                                                                                                                                        3⤵
                                                                                                                                          PID:917
                                                                                                                                      • /bin/sh
                                                                                                                                        sh -c "iptables -I OUTPUT -p udp --sport 8082 -j ACCEPT"
                                                                                                                                        2⤵
                                                                                                                                        • System Network Configuration Discovery
                                                                                                                                        PID:918
                                                                                                                                        • /sbin/iptables
                                                                                                                                          iptables -I OUTPUT -p udp --sport 8082 -j ACCEPT
                                                                                                                                          3⤵
                                                                                                                                            PID:919
                                                                                                                                        • /bin/sh
                                                                                                                                          sh -c "iptables -I PREROUTING -t nat -p udp --dport 8082 -j ACCEPT"
                                                                                                                                          2⤵
                                                                                                                                            PID:920
                                                                                                                                            • /sbin/iptables
                                                                                                                                              iptables -I PREROUTING -t nat -p udp --dport 8082 -j ACCEPT
                                                                                                                                              3⤵
                                                                                                                                                PID:921
                                                                                                                                            • /bin/sh
                                                                                                                                              sh -c "iptables -I POSTROUTING -t nat -p udp --sport 8082 -j ACCEPT"
                                                                                                                                              2⤵
                                                                                                                                              • System Network Configuration Discovery
                                                                                                                                              PID:922
                                                                                                                                              • /sbin/iptables
                                                                                                                                                iptables -I POSTROUTING -t nat -p udp --sport 8082 -j ACCEPT
                                                                                                                                                3⤵
                                                                                                                                                  PID:923

                                                                                                                                            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

                                                                                                                                              140B

                                                                                                                                              MD5

                                                                                                                                              457412db2275c971a2f32aef0c05f0ef

                                                                                                                                              SHA1

                                                                                                                                              81634d651b7bd25434966cb91dd5f1f1683ae363

                                                                                                                                              SHA256

                                                                                                                                              348a557ecef7585e315fa04bea4a179b715c795993ca331fbaf3677c79e0be5e

                                                                                                                                              SHA512

                                                                                                                                              4bf11f480c43a51666b8ddb335c59159c142299995ef5aad0cabe266e9652482f3032759150d6c467494ac10e7210976a935b61642cb214a438be016a7244a2c

                                                                                                                                            • /tmp/.config

                                                                                                                                              Filesize

                                                                                                                                              150B

                                                                                                                                              MD5

                                                                                                                                              83a8690fccbe0604585559ef1a9f8fe3

                                                                                                                                              SHA1

                                                                                                                                              62beaaf0e86e517e8e6da059ba063eb58958a205

                                                                                                                                              SHA256

                                                                                                                                              f53d6155f670e52be7bca53f09e798661c23fb39178da2460928fe1ce9a80f7d

                                                                                                                                              SHA512

                                                                                                                                              9f1780a7c868018d295933a585f0a82799dd6cdba6b3d22f38c77baf3dc44ed5df4955d6c338a3c92892f4159bde2040c96530a1a1bbb61376186c932ed268bb

                                                                                                                                            • /usr/networks

                                                                                                                                              Filesize

                                                                                                                                              134KB

                                                                                                                                              MD5

                                                                                                                                              3849f30b51a5c49e8d1546960cc206c7

                                                                                                                                              SHA1

                                                                                                                                              61c74136534b826059c63221a2373dc0613a47b7

                                                                                                                                              SHA256

                                                                                                                                              f6c97b1e2ed02578ca1066c8235ba4f991e645f89012406c639dbccc6582eec8

                                                                                                                                              SHA512

                                                                                                                                              43d79293d1fbf716111c27e50df95a0860a0d706079625fa2b8a6b57c5ee06fa7b5b6b8c0acae33714a2181686426728513c990534e44b6f03a05dde0629ab86

                                                                                                                                            • memory/707-1-0x00400000-0x004c2f18-memory.dmp