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Analysis

  • max time kernel
    135s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/07/2023, 02:59

General

  • Target

    FreeMinecraft.bat

  • Size

    1KB

  • MD5

    3e167c5a56f002c7c31b5dd4a03cb1b5

  • SHA1

    09ad7bedbf488e80594601a2d6f4321cf99c23dd

  • SHA256

    470a4da4e2f91d06647da87b98657a5afd36768c2583b2f44745dd32ce14355c

  • SHA512

    56d8159536e3e0ad35054af4fc55a247b35ac63bc359ec7b2f75d001bca8bdf6ec2d56447f0f62967684c28d2c26a2f7a95a2fce3575546d72d97276ab49cce5

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs
  • Views/modifies file attributes 1 TTPs 4 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\FreeMinecraft.bat"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4300
    • C:\Windows\system32\reg.exe
      reg delete HKCR/.exe
      2⤵
        PID:4000
      • C:\Windows\system32\reg.exe
        reg delete HKCR/.dll
        2⤵
          PID:3912
        • C:\Windows\system32\reg.exe
          reg delete HKCR/*
          2⤵
            PID:3356
          • C:\Windows\system32\attrib.exe
            attrib -r -s -h c:autoexec.bat
            2⤵
            • Views/modifies file attributes
            PID:2284
          • C:\Windows\system32\attrib.exe
            attrib -r -s -h c:boot.ini
            2⤵
            • Views/modifies file attributes
            PID:2724
          • C:\Windows\system32\attrib.exe
            attrib -r -s -h c:ntldr
            2⤵
            • Views/modifies file attributes
            PID:3940
          • C:\Windows\system32\attrib.exe
            attrib -r -s -h c:windowswin.ini
            2⤵
            • Views/modifies file attributes
            PID:1604
          • C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE
            "C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE"
            2⤵
            • Checks processor information in registry
            • Enumerates system info in registry
            • Suspicious behavior: AddClipboardFormatListener
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SetWindowsHookEx
            PID:4836
          • C:\Windows\system32\mspaint.exe
            mspaint
            2⤵
            • Drops file in Windows directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of SetWindowsHookEx
            PID:4868
          • C:\Windows\system32\notepad.exe
            notepad
            2⤵
              PID:4008
            • C:\Windows\system32\write.exe
              write
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:4708
              • C:\Program Files\Windows NT\Accessories\wordpad.exe
                "C:\Program Files\Windows NT\Accessories\wordpad.exe"
                3⤵
                • Suspicious use of SetWindowsHookEx
                PID:4056
            • C:\Windows\system32\cmd.exe
              cmd
              2⤵
                PID:5084
              • C:\Windows\explorer.exe
                explorer
                2⤵
                • Modifies registry class
                PID:1292
              • C:\Windows\system32\control.exe
                control
                2⤵
                • Modifies registry class
                PID:3428
              • C:\Windows\system32\calc.exe
                calc
                2⤵
                • Modifies registry class
                PID:748
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DeviceAssociationService
              1⤵
                PID:3888
              • C:\Windows\explorer.exe
                C:\Windows\explorer.exe /factory,{5BD95610-9434-43C2-886C-57852CC8A120} -Embedding
                1⤵
                • Modifies Internet Explorer settings
                • Modifies registry class
                • Suspicious behavior: AddClipboardFormatListener
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of FindShellTrayWindow
                PID:4148
              • C:\Windows\system32\OpenWith.exe
                C:\Windows\system32\OpenWith.exe -Embedding
                1⤵
                • Suspicious use of SetWindowsHookEx
                PID:1040
              • C:\Windows\SysWOW64\DllHost.exe
                C:\Windows\SysWOW64\DllHost.exe /Processid:{06622D85-6856-4460-8DE1-A81921B41C4B}
                1⤵
                  PID:3720
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
                  1⤵
                    PID:2108

                  Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

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                  Downloads

                  • memory/4836-133-0x00007FF9873B0000-0x00007FF9873C0000-memory.dmp

                    Filesize

                    64KB

                  • memory/4836-134-0x00007FF9873B0000-0x00007FF9873C0000-memory.dmp

                    Filesize

                    64KB

                  • memory/4836-135-0x00007FF9873B0000-0x00007FF9873C0000-memory.dmp

                    Filesize

                    64KB

                  • memory/4836-136-0x00007FF9873B0000-0x00007FF9873C0000-memory.dmp

                    Filesize

                    64KB

                  • memory/4836-137-0x00007FF9873B0000-0x00007FF9873C0000-memory.dmp

                    Filesize

                    64KB

                  • memory/4836-138-0x00007FF984E20000-0x00007FF984E30000-memory.dmp

                    Filesize

                    64KB

                  • memory/4836-139-0x00007FF984E20000-0x00007FF984E30000-memory.dmp

                    Filesize

                    64KB