Analysis

  • max time kernel
    156s
  • max time network
    154s
  • platform
    ubuntu-18.04_amd64
  • resource
    ubuntu1804-amd64-20231215-en
  • resource tags

    arch:amd64arch:i386image:ubuntu1804-amd64-20231215-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
  • submitted
    19-12-2023 22:35

General

  • Target

    157d4eea973b5dc24c15548891c76e78

  • Size

    1.5MB

  • MD5

    157d4eea973b5dc24c15548891c76e78

  • SHA1

    420f0acc0505d392054ec911c2094bb6b9795a99

  • SHA256

    1b02eaa31c6d4993a1083ee69f8fc0c01566a8fdfc8cd67f303a23ca534a4ac5

  • SHA512

    207eacd658ef2cdd4207d74c7d66b9d33d7d68dab93703042e312e6915b87652c6314d61d73e9f04350e004d5edeee84f88b5a7358684572968372779c053aea

  • SSDEEP

    24576:056JIc+TEZhT1gcyq0zQ8uo/Vt774Hph9IVLrRcBKD8snXq:SIVmcyy8uo/Vt7cHpHwG+a

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Modifies init.d 1 TTPs 1 IoCs

    Adds/modifies system service, likely for persistence.

  • Reads system network configuration 1 TTPs 1 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 3 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/157d4eea973b5dc24c15548891c76e78
    /tmp/157d4eea973b5dc24c15548891c76e78
    1⤵
      PID:1592
    • /bin/sh
      sh -c "echo 'DDosClient &'>> /etc/init.d/rc.local;echo >> /etc/init.d/rc.local"
      1⤵
      • Modifies init.d
      PID:1596
    • /bin/sh
      sh -c "killall dbuspm-session"
      1⤵
        PID:1597
        • /usr/bin/killall
          killall dbuspm-session
          2⤵
          • Reads runtime system information
          PID:1598
      • /bin/sh
        sh -c "./dbuspm-session /tmp/157d4eea973b5dc24c15548891c76e78 RunByP1594 &"
        1⤵
          PID:1599
        • /tmp/dbuspm-session
          ./dbuspm-session /tmp/157d4eea973b5dc24c15548891c76e78 RunByP1594
          1⤵
          • Executes dropped EXE
          PID:1600
        • /bin/sh
          sh -c "cat /proc/meminfo|grep MemTotal>/tmp/Meminfo"
          1⤵
            PID:1605
            • /bin/cat
              cat /proc/meminfo
              2⤵
                PID:1606
              • /bin/grep
                grep MemTotal
                2⤵
                  PID:1607
              • /bin/sh
                sh -c "ethtool ens3|grep Speed >/tmp/NetSpeedInfo"
                1⤵
                  PID:1608
                  • /bin/grep
                    grep Speed
                    2⤵
                      PID:1610
                  • /bin/sh
                    sh -c "rm /tmp/NetSpeedInfo /tmp/Meminfo"
                    1⤵
                      PID:1611
                      • /bin/rm
                        rm /tmp/NetSpeedInfo /tmp/Meminfo
                        2⤵
                          PID:1612

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • /etc/init.d/rc.local

                        Filesize

                        13B

                        MD5

                        6cce3b5b65c13566a616e48cac7e00a5

                        SHA1

                        1478d44a4a810ff844d53ec6bee2f56f28bd0b43

                        SHA256

                        19631ba62bf0299b5c2c5f45e4e57943a218f16b11ecfc6b19e88a9a0fde6ffe

                        SHA512

                        455a14fc759058ec3f8f57ea0b8c0065019e60d08f51c040cd37225de5852e9b8887e36db0a5151b9d60780edadf24deffeebe2623dc4f35cc118930450c5666

                      • /etc/init.d/rc.local

                        Filesize

                        14B

                        MD5

                        6d93d6735a71a99f37e596da1e70c600

                        SHA1

                        0c70472ba94c95c3d72a061175db04902501174f

                        SHA256

                        f6a113354a18334c263fba3fdd91c796de35f7a1eb113a7d074d6c6ac39bf6c9

                        SHA512

                        33177b2a701b137d46bd13ae4346722a690c51ef649e8c272cd6252e9c810bbf6cb64b0ca85ab1cc3605f4616491a289ff46943fd2a933d2989c03590d5c048d

                      • /tmp/Meminfo

                        Filesize

                        28B

                        MD5

                        8c66bf95966b7acc9f94dab790a65b8f

                        SHA1

                        0565c13889fee57d8fed112070ea5bb613548216

                        SHA256

                        d42f4a22a54fd5487a650dada99ff21155899d0e08b732b4a8e576a91ed233fc

                        SHA512

                        81f5e6e01d29e3adfd8efd0a0fc0672234c2de0be8b23325352ebe6916d325c75dded626681f4ab0d1fb2486c009664808d8ea637691f341bf53614269d526d1

                      • /tmp/dbuspm-session

                        Filesize

                        6KB

                        MD5

                        7cf5d5e8ddf6e6e65169ae2a9edc92f3

                        SHA1

                        c92a6c1568d3c89120daf9193fa10d8bc1079ca7

                        SHA256

                        2710015c0c0fe485cf1740310e1b3c8eebe92dafc480425eed1cd29ad034fc90

                        SHA512

                        305864c460e00b73573313a7020a9cc8079211527f3cd005f06c7d360ca1a16767ed42f6052dfe91a4540cdd78e996c8b6b42e99138656466a9bea80d28fcf63