Analysis

  • max time kernel
    150s
  • max time network
    51s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/06/2024, 02:42

General

  • Target

    b81a7dba533651bdd9164ddc8b0a9168c5bd4c4e17995b0c94832c2d19879142.exe

  • Size

    96KB

  • MD5

    9fbea232a764499d46084b22629f2dd9

  • SHA1

    7451003f3d62beee43193b6822dc8eeefc4f9e72

  • SHA256

    b81a7dba533651bdd9164ddc8b0a9168c5bd4c4e17995b0c94832c2d19879142

  • SHA512

    669575d4e135b2519cceeaf00a25878ecc54f8972c90fc65301f929e8220b7fffd2d6c0869f7d9a2bfef3f31040767a6a16c028bf833bc22419321824ef2ed3d

  • SSDEEP

    3072:BftffjmNrcc26D7nt0lv8ecxrNDcyplEmns/5jA4ZE1F:JVfjmNgc29irNDcyplEmKpRaH

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3360
      • C:\Users\Admin\AppData\Local\Temp\b81a7dba533651bdd9164ddc8b0a9168c5bd4c4e17995b0c94832c2d19879142.exe
        "C:\Users\Admin\AppData\Local\Temp\b81a7dba533651bdd9164ddc8b0a9168c5bd4c4e17995b0c94832c2d19879142.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:1680
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a49AB.bat
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1628
          • C:\Users\Admin\AppData\Local\Temp\b81a7dba533651bdd9164ddc8b0a9168c5bd4c4e17995b0c94832c2d19879142.exe
            "C:\Users\Admin\AppData\Local\Temp\b81a7dba533651bdd9164ddc8b0a9168c5bd4c4e17995b0c94832c2d19879142.exe"
            4⤵
            • Executes dropped EXE
            PID:4984
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • Executes dropped EXE
          • Enumerates connected drives
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:220
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:4744
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:1888

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe

        Filesize

        251KB

        MD5

        a33a8079a96b84fb107ee4603ea5a431

        SHA1

        4d57eace6522d58ce571c31103ce1335cac7a334

        SHA256

        3ca9dbf486bbdef38ddf2102a532563ab20f4d767c5e6228f39e606e626e76d8

        SHA512

        29ec766ea39de2e24661a6444590fcd3421dfaf8e2f9edc6b7420331b455e9726759add01d9f53862341b7563042f089c64703edfcc38afa5f26e1e4bb64709b

      • C:\Program Files\7-Zip\7z.exe

        Filesize

        570KB

        MD5

        30008560b9177bfb052f3a9762fdeae3

        SHA1

        f2efbe2b8d8cdc97929a61e68aea51b7e1b1a255

        SHA256

        7df732e0ff8923eab2f1206791b2a9b88d834fc10333dbde8f4ed8c47b23f3fe

        SHA512

        7468e1f8e8acd12dd0a97d21350cf5e6fe0463819bdd897a5158bce5186757189b363c4b2b926c048548a3fb76f415b4635e11ad50912da0ac3a57e0922f4b0b

      • C:\ProgramData\Package Cache\{63880b41-04fc-4f9b-92c4-4455c255eb8c}\windowsdesktop-runtime-8.0.2-win-x64.exe

        Filesize

        636KB

        MD5

        2500f702e2b9632127c14e4eaae5d424

        SHA1

        8726fef12958265214eeb58001c995629834b13a

        SHA256

        82e5b0001f025ca3b8409c98e4fb06c119c68de1e4ef60a156360cb4ef61d19c

        SHA512

        f420c62fa1f6897f51dd7a0f0e910fb54ad14d51973a2d4840eeea0448c860bf83493fb1c07be65f731efc39e19f8a99886c8cfd058cee482fe52d255a33a55c

      • C:\Users\Admin\AppData\Local\Temp\$$a49AB.bat

        Filesize

        722B

        MD5

        0a73c915a399614347238e18eef84530

        SHA1

        13c0aed5194bd9ba5903c5afa96dfe6fac1bfdd3

        SHA256

        48237b5a955f9b90c06a52c0bc269a8210c718e2d4b8482f4473c58a3a7ca0aa

        SHA512

        b64279e7fd457d7d740567374f019b35022b69a2629ec3c6036ade3a34d67f00d3f3732ab7dcbe4cac892091cc6ab3d830c78eac88038215410490fc233d8dc4

      • C:\Users\Admin\AppData\Local\Temp\b81a7dba533651bdd9164ddc8b0a9168c5bd4c4e17995b0c94832c2d19879142.exe.exe

        Filesize

        69KB

        MD5

        b74d8eadf894a17d2d9280d2aba9e718

        SHA1

        03ee3be120a52750e0858f837440858d2af5534b

        SHA256

        a32980008050dec43ec7e5610b8edea436d8b750b42b0e2112b2275af610c63b

        SHA512

        319b11cdc1952842f48df4e8d2dec0fe54f08a41cc7a2d249d64a00ea989047ec12281e78cdb7c1bbd6c406b6d107e36a9cca02621d068808dec94d2d707c693

      • C:\Windows\Logo1_.exe

        Filesize

        26KB

        MD5

        2fa7d646424dcabdc763a482ed72338a

        SHA1

        2917f669560129d017d689b255ff05b848a6fcd0

        SHA256

        b6e3f8544ab9ccaaf1cb6cc51639b7173edb46f7fc186b908d8bcd50b731da69

        SHA512

        02230628e90c8ae3397fa1c1908c9d4d27c112c7986ab6630608ce16054b1731bb06f3a129657c25a32214bd2451fe36b3f0e649073f5b8b6c86dca42d4b317b

      • F:\$RECYCLE.BIN\S-1-5-21-1337824034-2731376981-3755436523-1000\_desktop.ini

        Filesize

        9B

        MD5

        4f2460b507685f7d7bfe6393f335f1c9

        SHA1

        378d42f114b1515872e58de6662373af31ab8c7b

        SHA256

        47a22297ce31d17b0f37251ce63cf2eb146700451caab6dd0aa710d2526c8e42

        SHA512

        75dcca6b81ac47511b847a5c35be4bddbee425436f7bfd1347115e18b84f52a16a5c517bda0a5f5d0a1f2541aab80d764932d8018538cb112fa3b6c9977e95eb

      • memory/220-26-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/220-32-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/220-36-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/220-19-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/220-1230-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/220-12-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/220-4796-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/220-5235-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1680-0-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1680-8-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB