Analysis

  • max time kernel
    150s
  • max time network
    99s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-06-2024 18:30

General

  • Target

    b40a50a77e54abe10c6193c940775ce5c08b6b6fbfade9831eb6a6e33347134b.exe

  • Size

    484KB

  • MD5

    85a87698ab94b041f97c4829132d6173

  • SHA1

    37da2d86b37878508d384c78302ad749b1f302cf

  • SHA256

    b40a50a77e54abe10c6193c940775ce5c08b6b6fbfade9831eb6a6e33347134b

  • SHA512

    7f197123662f611dc83a76d4b1b840c568f78ffaea752410558be06d170cfde53745728930c6b9e780bb299bfeb16ed36eb54629f2f7714d54be803b00b142c5

  • SSDEEP

    6144:TVfgPRz1gL5pRTMTTjMkId/BynSx7dEe6XwzRaktNP08NhKs39zo43fTtl1fayCG:pYR1gL5pRTcAkS/3hzN8qE43fm78V

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 16 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:2940
      • C:\Users\Admin\AppData\Local\Temp\b40a50a77e54abe10c6193c940775ce5c08b6b6fbfade9831eb6a6e33347134b.exe
        "C:\Users\Admin\AppData\Local\Temp\b40a50a77e54abe10c6193c940775ce5c08b6b6fbfade9831eb6a6e33347134b.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:4652
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a351A.bat
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2016
          • C:\Users\Admin\AppData\Local\Temp\b40a50a77e54abe10c6193c940775ce5c08b6b6fbfade9831eb6a6e33347134b.exe
            "C:\Users\Admin\AppData\Local\Temp\b40a50a77e54abe10c6193c940775ce5c08b6b6fbfade9831eb6a6e33347134b.exe"
            4⤵
            • Executes dropped EXE
            PID:4196
        • 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:4000
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:1200
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:2372

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Discovery

      Query Registry

      1
      T1012

      Peripheral Device Discovery

      1
      T1120

      System Information Discovery

      1
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        251KB

        MD5

        a8bcad95d5ae82bbd579a77cbca70d4c

        SHA1

        0404b31bbe8d12f77e26edfbd27573f729382e1a

        SHA256

        662862ac5c4edbaf8ad7483a8deb8ac06855ead35c2d9541bde22535283d3881

        SHA512

        ed1969e6659530edfdfae5bcab18af7558674cd6bb87b0bfb0ade77700d4c01de79e9685eceffdb48a53c5a94026f26fbdfb3de47ddb8986a07222310aa61aca

      • C:\Program Files\7-Zip\7z.exe
        Filesize

        570KB

        MD5

        18931813e78b1f2f20c798ccc65caa45

        SHA1

        3ea910f3b09412dd8cddde3da0b42154cb78c60e

        SHA256

        3873df5384a7449171451d94fb989c753c214fff58dd0a2c1926523f99b7913b

        SHA512

        a6e29f632ee13a9cd007f6f592901086c6a30be5bd3b92cac94bdc7509228ca17d6166ff167162419f4441488360baf50a6746d380961428a37c5f86b981e882

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

        636KB

        MD5

        26f10ae795ba6df10c2779f4a535b449

        SHA1

        f00986886ad07550c909b9f02b7b3a9c310e8b0f

        SHA256

        996761040fa3726dbdda9dd94f543e7d0f26f58b5c7a122e900e56b2dacdc7b8

        SHA512

        5f5ea3a050876256571610eec85456ac6b3469ddaa10a6c62d621081718cf8eeedc21cf6381c49c835c6b61690b7c41107b357bb14c044ace1dfe7f827baa93c

      • C:\Users\Admin\AppData\Local\Temp\$$a351A.bat
        Filesize

        722B

        MD5

        9fd9b6b9a208ff6389a98f1777f4e803

        SHA1

        b738a743be6170ef56556c3cf88f7dfcb04a9619

        SHA256

        55e4e9786cec4e4ca76087e470690572ad983fcc681dd16f13599312223033f8

        SHA512

        6d207e94ee5d3c686854f399c7cd0e0555062b034521e5706985c6eb56febed4d90d623920382539272444f108120a650740d7f6dfee42947c31aae20fd59d3f

      • C:\Users\Admin\AppData\Local\Temp\b40a50a77e54abe10c6193c940775ce5c08b6b6fbfade9831eb6a6e33347134b.exe.exe
        Filesize

        458KB

        MD5

        619f7135621b50fd1900ff24aade1524

        SHA1

        6c7ea8bbd435163ae3945cbef30ef6b9872a4591

        SHA256

        344f076bb1211cb02eca9e5ed2c0ce59bcf74ccbc749ec611538fa14ecb9aad2

        SHA512

        2c7293c084d09bc2e3ae2d066dd7b331c810d9e2eeca8b236a8e87fdeb18e877b948747d3491fcaff245816507685250bd35f984c67a43b29b0ae31ecb2bd628

      • C:\Windows\Logo1_.exe
        Filesize

        26KB

        MD5

        7e2d4dc228c87c716412c5f88c8ba1bc

        SHA1

        68a1f791f9c818e50919266b4b8fdacbd342f8a4

        SHA256

        60da23d6016a27add33a1c2376bb53a25d04ff24679e9fde80ea37e8204abe4a

        SHA512

        acd4e4ace4c823cf71bcfa44ea4ef8058f9feca480b671cab8e4effd4271e94084c7119a711dbfc9fe7bcb7005e912531c6406141e11748ed3811ac8023d63db

      • F:\$RECYCLE.BIN\S-1-5-21-540404634-651139247-2967210625-1000\_desktop.ini
        Filesize

        9B

        MD5

        3b22ce0fee2d1aaf2c66dcd142740e29

        SHA1

        94d542b4bb9854a9419753c38e6ffe747653d91c

        SHA256

        8284772f28954a109c16f1583e6e34e29f06673b34e04f268bda961b57ba9f79

        SHA512

        efd4900a49624170e51ea401f0845634f49484a49335845258dc3d41a12e2022bf413a6751fcbcfd1ec68cde506f3363beae57f20e8eaca8b214d28baa138c5b

      • memory/4000-27-0x0000000000400000-0x0000000000434000-memory.dmp
        Filesize

        208KB

      • memory/4000-33-0x0000000000400000-0x0000000000434000-memory.dmp
        Filesize

        208KB

      • memory/4000-37-0x0000000000400000-0x0000000000434000-memory.dmp
        Filesize

        208KB

      • memory/4000-20-0x0000000000400000-0x0000000000434000-memory.dmp
        Filesize

        208KB

      • memory/4000-1231-0x0000000000400000-0x0000000000434000-memory.dmp
        Filesize

        208KB

      • memory/4000-4797-0x0000000000400000-0x0000000000434000-memory.dmp
        Filesize

        208KB

      • memory/4000-11-0x0000000000400000-0x0000000000434000-memory.dmp
        Filesize

        208KB

      • memory/4000-5236-0x0000000000400000-0x0000000000434000-memory.dmp
        Filesize

        208KB

      • memory/4652-0-0x0000000000400000-0x0000000000434000-memory.dmp
        Filesize

        208KB

      • memory/4652-9-0x0000000000400000-0x0000000000434000-memory.dmp
        Filesize

        208KB