Analysis

  • max time kernel
    149s
  • max time network
    101s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-06-2024 20:29

General

  • Target

    4cfb758bc8d779a7e4f3f549286ac83c8b98d5104f3efa056d8729462bf1645c.exe

  • Size

    33KB

  • MD5

    3905de443e3362c9a3cf7a99ec967853

  • SHA1

    fad6b90d31da3df8c885fac5d78de93bec539fec

  • SHA256

    4cfb758bc8d779a7e4f3f549286ac83c8b98d5104f3efa056d8729462bf1645c

  • SHA512

    151968a824d131913cec483882b9a636aaa1202647f703b376b495e09f3ac1377aed756e85a449613a9cea4487cf9522ec2951e00ecb095e709eb55d21fe4183

  • SSDEEP

    768:mYBuC+Vxr1x5cE9Fl5pz8UOutDlMXaoSunjXWNN:/BVsrz8VuJlMXaDuiN

Score
7/10

Malware Config

Signatures

  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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 2 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 60 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3384
      • C:\Users\Admin\AppData\Local\Temp\4cfb758bc8d779a7e4f3f549286ac83c8b98d5104f3efa056d8729462bf1645c.exe
        "C:\Users\Admin\AppData\Local\Temp\4cfb758bc8d779a7e4f3f549286ac83c8b98d5104f3efa056d8729462bf1645c.exe"
        2⤵
        • Drops startup file
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3168
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4136
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:4380
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:4604
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              4⤵
                PID:4192

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          258KB

          MD5

          8a216d268fb4892b3af2e79a279a2a23

          SHA1

          51916b0eeb6d61280fac7de0363254427f245762

          SHA256

          c7a2a1b862ba9fdf706edd930c09dd07af8fb44f3edcfe0a22b41899eebae31d

          SHA512

          30adf4d918017584c668d9bacf0f6263a9f47087303aaa46ca6a0c9a1e96644fb54b7110ede95819e5782ca189909ce84af8bc80c2a5c1ac21cb62f33f729e93

        • C:\Program Files\dotnet\dotnet.exe

          Filesize

          177KB

          MD5

          300554142b399ee673d8bad80666f9de

          SHA1

          d94950ce2b9dcf8b9969755e33e4edb70cdee2c8

          SHA256

          304e3f7666d31246eab8711506a24c1c2c1698817ef410589e5e71e275e9fa40

          SHA512

          2d38228bfaef2c88eb33f1475843a909d9eba4aba3c6c98a601dbbdfffcadda367832d5a02e5c3952edaf008680b453c47339cc9dd20e4bca801d2280493ac75

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

          Filesize

          644KB

          MD5

          e9d357d936630a4282349f034fb51052

          SHA1

          3905031236dfb21491e9ad23e35b0ae261e0739f

          SHA256

          c74cc9b57276c722bb9774cb84b7e4afd4ea5c9ba1f0fdd77dc21c81b8aaa8c4

          SHA512

          bf3439117541d47daee8cc6ca363c66dd3d46cbdc5009173572e383dce3b5b83c7575af3317bb2bd50dee757a9a16b82bf386b31d1ba805f23a4d57e484ba2a6

        • F:\$RECYCLE.BIN\S-1-5-21-4124900551-4068476067-3491212533-1000\_desktop.ini

          Filesize

          8B

          MD5

          378d822ce12583d0d584184af22d1d77

          SHA1

          c062ac770b028df6db676099e02f09fc2f77b171

          SHA256

          1ad01f8e46c86dfa34468e306eabe54b58d56134130b53ea7677961e3baaf6c7

          SHA512

          23cf7b916de734c6bb6fd3b2beee21f3e82bc95e93d8662dca818d7cf13602706f22671dce61388b2a7e0b613c07c70512331c4132759b16cf438cb1750bc397

        • memory/3168-0-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/3168-3-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/3168-4625-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/3168-8676-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB