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Analysis

  • max time kernel
    299s
  • max time network
    286s
  • platform
    ubuntu-18.04_amd64
  • resource
    ubuntu1804-amd64-20240226-en
  • resource tags

    arch:amd64arch:i386image:ubuntu1804-amd64-20240226-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
  • submitted
    01/03/2024, 15:32

General

  • Target

    b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c

  • Size

    1.2MB

  • MD5

    274a2caa2427a5cbdd52a7eb0dd5860d

  • SHA1

    8fcfea93ae7049c5f1a7679199d9f7f72deb5940

  • SHA256

    b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c

  • SHA512

    38fccb019474b23bcc060f87c9707aab5ff721fc398df8fe8bebd681b7962584347b58800602e210b3a42e94262072d5592eae79e44ea57478fb23fb4c4f9645

  • SSDEEP

    24576:e845rGHu6gVJKG75oFpA0VWeX4Q2y1q2rJp0:745vRVJKGtSA0VWeonu9p0

Malware Config

Signatures

  • MrBlack Trojan

    IoT botnet which infects routers to be used for DDoS attacks.

  • MrBlack trojan 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Checks CPU configuration 1 TTPs 1 IoCs

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

  • Modifies init.d 1 TTPs 2 IoCs

    Adds/modifies system service, likely for persistence.

  • Reads system routing table 1 TTPs 1 IoCs

    Gets active network interfaces from /proc virtual filesystem.

  • Write file to user bin folder 1 TTPs 9 IoCs
  • Writes file to system bin folder 1 TTPs 2 IoCs
  • Reads system network configuration 1 TTPs 3 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

  • Reads runtime system information 23 IoCs

    Reads data from /proc virtual filesystem.

  • Writes file to tmp directory 5 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c
    /tmp/b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c
    1⤵
      PID:1591
    • /bin/sh
      sh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc1.d/S97DbSecuritySpt"
      1⤵
        PID:1606
        • /bin/ln
          ln -s /etc/init.d/DbSecuritySpt /etc/rc1.d/S97DbSecuritySpt
          2⤵
            PID:1607
        • /bin/sh
          sh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc2.d/S97DbSecuritySpt"
          1⤵
            PID:1608
            • /bin/ln
              ln -s /etc/init.d/DbSecuritySpt /etc/rc2.d/S97DbSecuritySpt
              2⤵
                PID:1609
            • /bin/sh
              sh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc3.d/S97DbSecuritySpt"
              1⤵
                PID:1610
                • /bin/ln
                  ln -s /etc/init.d/DbSecuritySpt /etc/rc3.d/S97DbSecuritySpt
                  2⤵
                    PID:1611
                • /bin/sh
                  sh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc4.d/S97DbSecuritySpt"
                  1⤵
                    PID:1612
                    • /bin/ln
                      ln -s /etc/init.d/DbSecuritySpt /etc/rc4.d/S97DbSecuritySpt
                      2⤵
                        PID:1613
                    • /bin/sh
                      sh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc5.d/S97DbSecuritySpt"
                      1⤵
                        PID:1614
                        • /bin/ln
                          ln -s /etc/init.d/DbSecuritySpt /etc/rc5.d/S97DbSecuritySpt
                          2⤵
                            PID:1615
                        • /bin/sh
                          sh -c "mkdir -p /usr/bin/bsd-port"
                          1⤵
                            PID:1616
                            • /bin/mkdir
                              mkdir -p /usr/bin/bsd-port
                              2⤵
                              • Reads runtime system information
                              PID:1617
                          • /bin/sh
                            sh -c "mkdir -p /usr/bin/bsd-port"
                            1⤵
                              PID:1618
                              • /bin/mkdir
                                mkdir -p /usr/bin/bsd-port
                                2⤵
                                • Reads runtime system information
                                PID:1619
                            • /bin/sh
                              sh -c "cp -f /tmp/b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c /usr/bin/bsd-port/getty"
                              1⤵
                                PID:1620
                                • /bin/cp
                                  cp -f /tmp/b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c /usr/bin/bsd-port/getty
                                  2⤵
                                  • Write file to user bin folder
                                  • Reads runtime system information
                                  PID:1621
                              • /bin/sh
                                sh -c /usr/bin/bsd-port/getty
                                1⤵
                                  PID:1623
                                  • /usr/bin/bsd-port/getty
                                    /usr/bin/bsd-port/getty
                                    2⤵
                                    • Executes dropped EXE
                                    PID:1624
                                • /bin/sh
                                  sh -c "mkdir -p /usr/bin"
                                  1⤵
                                    PID:1626
                                    • /bin/mkdir
                                      mkdir -p /usr/bin
                                      2⤵
                                      • Reads runtime system information
                                      PID:1627
                                  • /bin/sh
                                    sh -c "mkdir -p /usr/bin"
                                    1⤵
                                      PID:1628
                                      • /bin/mkdir
                                        mkdir -p /usr/bin
                                        2⤵
                                        • Reads runtime system information
                                        PID:1629
                                    • /bin/sh
                                      sh -c "cp -f /tmp/b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c /usr/bin/.sshd"
                                      1⤵
                                        PID:1630
                                        • /bin/cp
                                          cp -f /tmp/b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c /usr/bin/.sshd
                                          2⤵
                                          • Write file to user bin folder
                                          • Reads runtime system information
                                          PID:1631
                                      • /bin/sh
                                        sh -c "ln -s /etc/init.d/selinux /etc/rc1.d/S99selinux"
                                        1⤵
                                          PID:1632
                                          • /bin/ln
                                            ln -s /etc/init.d/selinux /etc/rc1.d/S99selinux
                                            2⤵
                                              PID:1633
                                          • /bin/sh
                                            sh -c "ln -s /etc/init.d/selinux /etc/rc2.d/S99selinux"
                                            1⤵
                                              PID:1634
                                              • /bin/ln
                                                ln -s /etc/init.d/selinux /etc/rc2.d/S99selinux
                                                2⤵
                                                  PID:1635
                                              • /bin/sh
                                                sh -c "ln -s /etc/init.d/selinux /etc/rc3.d/S99selinux"
                                                1⤵
                                                  PID:1636
                                                  • /bin/ln
                                                    ln -s /etc/init.d/selinux /etc/rc3.d/S99selinux
                                                    2⤵
                                                      PID:1637
                                                  • /bin/sh
                                                    sh -c "ln -s /etc/init.d/selinux /etc/rc4.d/S99selinux"
                                                    1⤵
                                                      PID:1638
                                                      • /bin/ln
                                                        ln -s /etc/init.d/selinux /etc/rc4.d/S99selinux
                                                        2⤵
                                                          PID:1639
                                                      • /bin/sh
                                                        sh -c "ln -s /etc/init.d/selinux /etc/rc5.d/S99selinux"
                                                        1⤵
                                                          PID:1640
                                                          • /bin/ln
                                                            ln -s /etc/init.d/selinux /etc/rc5.d/S99selinux
                                                            2⤵
                                                              PID:1641
                                                          • /bin/sh
                                                            sh -c "mkdir -p /usr/bin/dpkgd"
                                                            1⤵
                                                              PID:1642
                                                              • /bin/mkdir
                                                                mkdir -p /usr/bin/dpkgd
                                                                2⤵
                                                                • Reads runtime system information
                                                                PID:1643
                                                            • /bin/sh
                                                              sh -c "cp -f /bin/ps /usr/bin/dpkgd/ps"
                                                              1⤵
                                                                PID:1644
                                                                • /bin/cp
                                                                  cp -f /bin/ps /usr/bin/dpkgd/ps
                                                                  2⤵
                                                                  • Write file to user bin folder
                                                                  • Reads runtime system information
                                                                  PID:1645
                                                              • /bin/sh
                                                                sh -c "mkdir -p /bin"
                                                                1⤵
                                                                  PID:1646
                                                                  • /bin/mkdir
                                                                    mkdir -p /bin
                                                                    2⤵
                                                                    • Reads runtime system information
                                                                    PID:1647
                                                                • /bin/sh
                                                                  sh -c "mkdir -p /bin"
                                                                  1⤵
                                                                    PID:1648
                                                                    • /bin/mkdir
                                                                      mkdir -p /bin
                                                                      2⤵
                                                                      • Reads runtime system information
                                                                      PID:1649
                                                                  • /bin/sh
                                                                    sh -c "cp -f /usr/bin/bsd-port/getty /bin/ps"
                                                                    1⤵
                                                                      PID:1650
                                                                      • /bin/cp
                                                                        cp -f /usr/bin/bsd-port/getty /bin/ps
                                                                        2⤵
                                                                        • Writes file to system bin folder
                                                                        • Reads runtime system information
                                                                        PID:1651
                                                                    • /bin/sh
                                                                      sh -c /usr/bin/.sshd
                                                                      1⤵
                                                                        PID:1653
                                                                        • /usr/bin/.sshd
                                                                          /usr/bin/.sshd
                                                                          2⤵
                                                                          • Executes dropped EXE
                                                                          PID:1654
                                                                      • /bin/sh
                                                                        sh -c "chmod 0755 /bin/ps"
                                                                        1⤵
                                                                          PID:1655
                                                                          • /bin/chmod
                                                                            chmod 0755 /bin/ps
                                                                            2⤵
                                                                              PID:1656
                                                                          • /bin/sh
                                                                            sh -c "cp -f /bin/ss /usr/bin/dpkgd/ss"
                                                                            1⤵
                                                                              PID:1657
                                                                              • /bin/cp
                                                                                cp -f /bin/ss /usr/bin/dpkgd/ss
                                                                                2⤵
                                                                                • Write file to user bin folder
                                                                                • Reads runtime system information
                                                                                PID:1658
                                                                            • /bin/sh
                                                                              sh -c "mkdir -p /bin"
                                                                              1⤵
                                                                                PID:1659
                                                                                • /bin/mkdir
                                                                                  mkdir -p /bin
                                                                                  2⤵
                                                                                  • Reads runtime system information
                                                                                  PID:1660
                                                                              • /bin/sh
                                                                                sh -c "mkdir -p /bin"
                                                                                1⤵
                                                                                  PID:1661
                                                                                  • /bin/mkdir
                                                                                    mkdir -p /bin
                                                                                    2⤵
                                                                                    • Reads runtime system information
                                                                                    PID:1662
                                                                                • /bin/sh
                                                                                  sh -c "cp -f /usr/bin/bsd-port/getty /bin/ss"
                                                                                  1⤵
                                                                                    PID:1663
                                                                                    • /bin/cp
                                                                                      cp -f /usr/bin/bsd-port/getty /bin/ss
                                                                                      2⤵
                                                                                      • Writes file to system bin folder
                                                                                      • Reads runtime system information
                                                                                      PID:1664
                                                                                  • /bin/sh
                                                                                    sh -c "chmod 0755 /bin/ss"
                                                                                    1⤵
                                                                                      PID:1665
                                                                                      • /bin/chmod
                                                                                        chmod 0755 /bin/ss
                                                                                        2⤵
                                                                                          PID:1666
                                                                                      • /bin/sh
                                                                                        sh -c "cp -f /usr/bin/lsof /usr/bin/dpkgd/lsof"
                                                                                        1⤵
                                                                                          PID:1667
                                                                                          • /bin/cp
                                                                                            cp -f /usr/bin/lsof /usr/bin/dpkgd/lsof
                                                                                            2⤵
                                                                                            • Write file to user bin folder
                                                                                            • Reads runtime system information
                                                                                            PID:1668
                                                                                        • /bin/sh
                                                                                          sh -c "mkdir -p /usr/bin"
                                                                                          1⤵
                                                                                            PID:1669
                                                                                            • /bin/mkdir
                                                                                              mkdir -p /usr/bin
                                                                                              2⤵
                                                                                              • Reads runtime system information
                                                                                              PID:1670
                                                                                          • /bin/sh
                                                                                            sh -c "mkdir -p /usr/bin"
                                                                                            1⤵
                                                                                              PID:1671
                                                                                              • /bin/mkdir
                                                                                                mkdir -p /usr/bin
                                                                                                2⤵
                                                                                                • Reads runtime system information
                                                                                                PID:1672
                                                                                            • /bin/sh
                                                                                              sh -c "cp -f /usr/bin/bsd-port/getty /usr/bin/lsof"
                                                                                              1⤵
                                                                                                PID:1673
                                                                                                • /bin/cp
                                                                                                  cp -f /usr/bin/bsd-port/getty /usr/bin/lsof
                                                                                                  2⤵
                                                                                                  • Write file to user bin folder
                                                                                                  • Reads runtime system information
                                                                                                  PID:1674
                                                                                              • /bin/sh
                                                                                                sh -c "chmod 0755 /usr/bin/lsof"
                                                                                                1⤵
                                                                                                  PID:1675
                                                                                                  • /bin/chmod
                                                                                                    chmod 0755 /usr/bin/lsof
                                                                                                    2⤵
                                                                                                      PID:1676
                                                                                                  • /bin/sh
                                                                                                    sh -c "insmod /usr/bin/bsd-port/xpacket.ko"
                                                                                                    1⤵
                                                                                                      PID:1679
                                                                                                      • /sbin/insmod
                                                                                                        insmod /usr/bin/bsd-port/xpacket.ko
                                                                                                        2⤵
                                                                                                        • Reads runtime system information
                                                                                                        PID:1680
                                                                                                    • /bin/sh
                                                                                                      sh -c "insmod /tmp/xpacket.ko"
                                                                                                      1⤵
                                                                                                        PID:1686
                                                                                                        • /sbin/insmod
                                                                                                          insmod /tmp/xpacket.ko
                                                                                                          2⤵
                                                                                                          • Reads runtime system information
                                                                                                          PID:1687

                                                                                                      Network

                                                                                                      MITRE ATT&CK Enterprise v15

                                                                                                      Replay Monitor

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                                                                                                      Downloads

                                                                                                      • /etc/init.d/DbSecuritySpt

                                                                                                        Filesize

                                                                                                        82B

                                                                                                        MD5

                                                                                                        746d8ff7117cc8d09091fa46ea4b80ea

                                                                                                        SHA1

                                                                                                        e239f4c06613fae7b5ccd82acadb888143b9c7db

                                                                                                        SHA256

                                                                                                        5fc747949b36010a1f20f27258e86a69a5e4cc9288cf75dd5c0d966d306612de

                                                                                                        SHA512

                                                                                                        5a9e7f95b68f6eb2ae1aba7ecd540cc4c87b46e44b88631a52bdc6df149bd832b2f95513eb915cb2ecfa1a55c75bf6013375e7ce1ae500f763b8421c59586fa9

                                                                                                      • /etc/init.d/selinux

                                                                                                        Filesize

                                                                                                        36B

                                                                                                        MD5

                                                                                                        993cc15058142d96c3daf7852c3d5ee8

                                                                                                        SHA1

                                                                                                        0950b8b391b04dd3895ea33cd3141543ebd2525d

                                                                                                        SHA256

                                                                                                        8171d077918611803d93088409f220c66fae1c670b297e1aa5d8cbd548ce9208

                                                                                                        SHA512

                                                                                                        0c4256c00a3710f97e92581b552682b36b62afc35fe72622c491323c618c19ea62611ac04ccafc3dfcde2254a2ebbd93b69b66795b16e36332293bed83adb928

                                                                                                      • /tmp/gates.lod

                                                                                                        Filesize

                                                                                                        4B

                                                                                                        MD5

                                                                                                        d72fbbccd9fe64c3a14f85d225a046f4

                                                                                                        SHA1

                                                                                                        348e495881ef4526fe8e38dba4ceaa49b829b8b2

                                                                                                        SHA256

                                                                                                        8cca04ee02b8915f60a6b72c1faf19923aa12aafb5af89bc4bfd403dc60a836b

                                                                                                        SHA512

                                                                                                        02107aa7dc8942af948b790560f406445e172eff5c838b73d0eb8d86e3021ff4bcbb310a5f3290b3ff6e46170cd36e2df76fc373b47e3b8e9f219c6f6e22d85f

                                                                                                      • /tmp/moni.lod

                                                                                                        Filesize

                                                                                                        4B

                                                                                                        MD5

                                                                                                        08e6bea8e90ba87af3c9554d94db6579

                                                                                                        SHA1

                                                                                                        f6c851b89dddaf2314c44b0b0fd3f7f70784fcbb

                                                                                                        SHA256

                                                                                                        88b82308d570d71f02c5aa6a14ffe29a7ffbe14969a63094eb19e8e34256d9bf

                                                                                                        SHA512

                                                                                                        1771fa59c930ca0a37335569539bce0e096a772b0413eb5a34894e536360c633a6df469e76393765013adda49dd394e67b9f2a17f529c8c684d2ce447343f085

                                                                                                      • /tmp/notify.file

                                                                                                        Filesize

                                                                                                        69B

                                                                                                        MD5

                                                                                                        fbf50da8f95867cb9eed5e13ad2184bc

                                                                                                        SHA1

                                                                                                        6a4adee971ee5f17ea885f898ecd76c41b688be1

                                                                                                        SHA256

                                                                                                        81f37bab27933f1cc914e717c76675b7934fd1df6eeba58def0ea84f5e7e9869

                                                                                                        SHA512

                                                                                                        8215f903baffb324357e96084cc5c7a2a2edc864582698b1bb8d5bfb5277815592afafbcbfe9400d1b3ad43ca94c8d74f68ea91d711459debcffc6c71e3b7746

                                                                                                      • /usr/bin/bsd-port/conf.n

                                                                                                        Filesize

                                                                                                        73B

                                                                                                        MD5

                                                                                                        3911fae9deb2d0b407ddc3baabe41700

                                                                                                        SHA1

                                                                                                        f10ef35d90f9f2cd7908edeb26a2350fb39886a6

                                                                                                        SHA256

                                                                                                        801a821b9e4068684c96b77fe35b835d17aa2a0d80e7734c95c8dad4891882e2

                                                                                                        SHA512

                                                                                                        89c03753b4fc8c553a1dd3b56c1692225c1293548ac08a7eb9fc85cbb4252ed696d0efda7e6788912eb1cfce7f440f9588afd5076daa5980d5520466a7c21165

                                                                                                      • /usr/bin/bsd-port/getty

                                                                                                        Filesize

                                                                                                        1.2MB

                                                                                                        MD5

                                                                                                        274a2caa2427a5cbdd52a7eb0dd5860d

                                                                                                        SHA1

                                                                                                        8fcfea93ae7049c5f1a7679199d9f7f72deb5940

                                                                                                        SHA256

                                                                                                        b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c

                                                                                                        SHA512

                                                                                                        38fccb019474b23bcc060f87c9707aab5ff721fc398df8fe8bebd681b7962584347b58800602e210b3a42e94262072d5592eae79e44ea57478fb23fb4c4f9645

                                                                                                      • /usr/bin/dpkgd/lsof

                                                                                                        Filesize

                                                                                                        159KB

                                                                                                        MD5

                                                                                                        e093dc78225e2a0a25e3b137c1c1e442

                                                                                                        SHA1

                                                                                                        c29497cfaae729eb576875e4fdfa400640ab16be

                                                                                                        SHA256

                                                                                                        1190f4dbc7be174de8fd4096c9bf7a28eebfac937d308b7cc533be4a1240d26e

                                                                                                        SHA512

                                                                                                        fe1cc7a65327732eaaee89f427c10239ba822430e34177842f4681068d78d404b1830d808a2a71b1efcc5f126c6d8c053512237421173aaa150e215a672da6f0

                                                                                                      • /usr/bin/dpkgd/ps

                                                                                                        Filesize

                                                                                                        130KB

                                                                                                        MD5

                                                                                                        558edc26f8a38fa9788220b9af8a73e7

                                                                                                        SHA1

                                                                                                        3024d44e580e9c67f32f6c585d50e2a6cc9a7cac

                                                                                                        SHA256

                                                                                                        b76435c80333d2c1fd18e0e7682f1c9dfb5da8d507e93e3c416f54b481c428d5

                                                                                                        SHA512

                                                                                                        edaa425b441044f015e8f68fffa1664e42372d00dd0e7b0924d24ce947aa8e5f96b3bdc326fa2f8b978e3fcf638a1ceca45a223735db73f1607df66990feb56f

                                                                                                      • /usr/bin/dpkgd/ss

                                                                                                        Filesize

                                                                                                        136KB

                                                                                                        MD5

                                                                                                        1dc929b5f2cd12fe6a2fe71140d2a9e3

                                                                                                        SHA1

                                                                                                        f9995a92bb201b1b7738a39a38570ef0c40b52d2

                                                                                                        SHA256

                                                                                                        418aae1da62554afe9f260866267af328fd761b3fd6f90f0ea53d543e2fefc38

                                                                                                        SHA512

                                                                                                        fbed011c595084548db440dfbe485b7d27032a44a6ae9e141fe43f31c8c524ff9347135ab035deb441fca99e5a3794f7bb9194f148aa2f60f1547a7c67d47373