Analysis

  • max time kernel
    150s
  • max time network
    139s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    09/05/2024, 19:23

General

  • Target

    4ce75530c839056bad57b070e33931e0c65e8a23fdd8cdbbb98fddc432c527c5.exe

  • Size

    4.1MB

  • MD5

    d83946b785aa670464c0ee497ae0026a

  • SHA1

    2b48bfb70b8c7f0bbf5e90fc352c9be7135fc751

  • SHA256

    4ce75530c839056bad57b070e33931e0c65e8a23fdd8cdbbb98fddc432c527c5

  • SHA512

    327aae9846b1f3fe6d60e673b4b7ffb5ee2309b01b9e47974bdc1a9daf58a3516b197b5b7ccc33788b9e3196efed0249d4b19949377fc1029af85effef5eb505

  • SSDEEP

    98304:/pLl5dh/cY//0ytMliSDJIrO0tWgVy355J08nZmlsCj:hLlNLHtGNcOLFp5JFwlsCj

Malware Config

Signatures

  • Glupteba

    Glupteba is a modular loader written in Golang with various components.

  • Glupteba payload 19 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 4 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Manipulates WinMonFS driver. 1 IoCs

    Roottkits write to WinMonFS to hide directories/files from being detected.

  • Drops file in System32 directory 6 IoCs
  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Drops file in Windows directory 4 IoCs
  • Launches sc.exe 1 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

    Using powershell.exe command.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 11 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\4ce75530c839056bad57b070e33931e0c65e8a23fdd8cdbbb98fddc432c527c5.exe
    "C:\Users\Admin\AppData\Local\Temp\4ce75530c839056bad57b070e33931e0c65e8a23fdd8cdbbb98fddc432c527c5.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1916
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1588
    • C:\Users\Admin\AppData\Local\Temp\4ce75530c839056bad57b070e33931e0c65e8a23fdd8cdbbb98fddc432c527c5.exe
      "C:\Users\Admin\AppData\Local\Temp\4ce75530c839056bad57b070e33931e0c65e8a23fdd8cdbbb98fddc432c527c5.exe"
      2⤵
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4180
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4240
      • C:\Windows\system32\cmd.exe
        C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4068
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          PID:2116
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2176
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3136
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Manipulates WinMonFS driver.
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2072
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -nologo -noprofile
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Modifies data under HKEY_USERS
          PID:4480
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Creates scheduled task(s)
          PID:3100
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4104
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Command and Scripting Interpreter: PowerShell
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2236
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Command and Scripting Interpreter: PowerShell
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2216
          • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
            C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            PID:2592
          • C:\Windows\SYSTEM32\schtasks.exe
            schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
            4⤵
            • Creates scheduled task(s)
            PID:2540
          • C:\Windows\windefender.exe
            "C:\Windows\windefender.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4616
            • C:\Windows\SysWOW64\cmd.exe
              cmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:1720
              • C:\Windows\SysWOW64\sc.exe
                sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
                6⤵
                • Launches sc.exe
                • Suspicious use of AdjustPrivilegeToken
                PID:1144
    • C:\Windows\windefender.exe
      C:\Windows\windefender.exe
      1⤵
      • Executes dropped EXE
      • Modifies data under HKEY_USERS
      PID:456

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_npdxfjns.psr.ps1

            Filesize

            60B

            MD5

            d17fe0a3f47be24a6453e9ef58c94641

            SHA1

            6ab83620379fc69f80c0242105ddffd7d98d5d9d

            SHA256

            96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

            SHA512

            5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

          • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe

            Filesize

            281KB

            MD5

            d98e33b66343e7c96158444127a117f6

            SHA1

            bb716c5509a2bf345c6c1152f6e3e1452d39d50d

            SHA256

            5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

            SHA512

            705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

          • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

            Filesize

            2KB

            MD5

            ac4917a885cf6050b1a483e4bc4d2ea5

            SHA1

            b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f

            SHA256

            e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9

            SHA512

            092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d

          • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

            Filesize

            19KB

            MD5

            16952cfb800f8da624cf301d8432b886

            SHA1

            c19cfeab394fc773c9fa2bca661032f5428bfbc8

            SHA256

            dd022d672370c0f58172e80f75ba254417551bfb920389cae39b5c7ef536d11b

            SHA512

            a5ba56b8d8b5c45f0cf191cd03b9d1bdb2b9e17786c1f8e68d33de7088235d4f51b103e86f6afd2dbd1611928c1d7fa2d4bdb2117b8a576927d9dd245bded3d4

          • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

            Filesize

            19KB

            MD5

            c679c5fe11748c6b2994a26c37a3110d

            SHA1

            c5da17ce3a530c1d5ce562955bb9facb9d130d2c

            SHA256

            708a126ccb7218d00e7ac671a88bdda920f170a4f420a02691faf91055800ad5

            SHA512

            91bfce1de8a39ba8a22cab91c915adf3883c9eed23bad847ba5e4d5ab970f32da43de296123062667b23abafe0d36246aec8cb88a5b7265a9bd0f9396b80f381

          • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

            Filesize

            19KB

            MD5

            2aead030855f1e2fe32500e10ef48af3

            SHA1

            f4f94d1b5d07ea48e10566761993328ddb6072d1

            SHA256

            f79ccda560ac3d0ab5fcbffa650636cc873669513281eb8eecbb38fe0e24c40b

            SHA512

            d120e91c239690859f70e2cf7814e9dd1a875282edc6f18861132a12b22e4244ff2b7cae815363ec2e344decc76552a3c93bd31091d6cef09b2b45f37a4311a0

          • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

            Filesize

            19KB

            MD5

            024d8e19c9b85a7d0e4c19a428b88cd8

            SHA1

            1402996018edc2b4660bc00ce262e12bd57aa2e2

            SHA256

            b1a0cf3ce570470ae12b2fbfd4d315b55d2ead13b06876797def679608b6b433

            SHA512

            3c1068d98d083022bd4ee45a8ed906d4090903ad26358f96d70c33d65fcfc00e1045a16cca0da735e88e711cdec56cf1270c051ecec71726a4c2224d4f6f42a4

          • C:\Windows\rss\csrss.exe

            Filesize

            4.1MB

            MD5

            d83946b785aa670464c0ee497ae0026a

            SHA1

            2b48bfb70b8c7f0bbf5e90fc352c9be7135fc751

            SHA256

            4ce75530c839056bad57b070e33931e0c65e8a23fdd8cdbbb98fddc432c527c5

            SHA512

            327aae9846b1f3fe6d60e673b4b7ffb5ee2309b01b9e47974bdc1a9daf58a3516b197b5b7ccc33788b9e3196efed0249d4b19949377fc1029af85effef5eb505

          • C:\Windows\windefender.exe

            Filesize

            2.0MB

            MD5

            8e67f58837092385dcf01e8a2b4f5783

            SHA1

            012c49cfd8c5d06795a6f67ea2baf2a082cf8625

            SHA256

            166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa

            SHA512

            40d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec

          • memory/456-191-0x0000000000400000-0x00000000008DF000-memory.dmp

            Filesize

            4.9MB

          • memory/456-197-0x0000000000400000-0x00000000008DF000-memory.dmp

            Filesize

            4.9MB

          • memory/456-202-0x0000000000400000-0x00000000008DF000-memory.dmp

            Filesize

            4.9MB

          • memory/1588-44-0x0000000007F10000-0x0000000007F2A000-memory.dmp

            Filesize

            104KB

          • memory/1588-45-0x0000000007F30000-0x0000000007F38000-memory.dmp

            Filesize

            32KB

          • memory/1588-22-0x0000000006890000-0x00000000068DC000-memory.dmp

            Filesize

            304KB

          • memory/1588-23-0x0000000006DB0000-0x0000000006DF6000-memory.dmp

            Filesize

            280KB

          • memory/1588-24-0x0000000007C60000-0x0000000007C94000-memory.dmp

            Filesize

            208KB

          • memory/1588-35-0x0000000007CC0000-0x0000000007CDE000-memory.dmp

            Filesize

            120KB

          • memory/1588-26-0x0000000070B30000-0x0000000070E87000-memory.dmp

            Filesize

            3.3MB

          • memory/1588-25-0x00000000709B0000-0x00000000709FC000-memory.dmp

            Filesize

            304KB

          • memory/1588-36-0x0000000007CE0000-0x0000000007D84000-memory.dmp

            Filesize

            656KB

          • memory/1588-37-0x0000000008450000-0x0000000008ACA000-memory.dmp

            Filesize

            6.5MB

          • memory/1588-38-0x0000000007E00000-0x0000000007E1A000-memory.dmp

            Filesize

            104KB

          • memory/1588-39-0x0000000007E40000-0x0000000007E4A000-memory.dmp

            Filesize

            40KB

          • memory/1588-40-0x0000000007F50000-0x0000000007FE6000-memory.dmp

            Filesize

            600KB

          • memory/1588-41-0x0000000007E60000-0x0000000007E71000-memory.dmp

            Filesize

            68KB

          • memory/1588-42-0x0000000007EB0000-0x0000000007EBE000-memory.dmp

            Filesize

            56KB

          • memory/1588-43-0x0000000007EC0000-0x0000000007ED5000-memory.dmp

            Filesize

            84KB

          • memory/1588-8-0x0000000074740000-0x0000000074EF1000-memory.dmp

            Filesize

            7.7MB

          • memory/1588-9-0x00000000059C0000-0x00000000059E2000-memory.dmp

            Filesize

            136KB

          • memory/1588-48-0x0000000074740000-0x0000000074EF1000-memory.dmp

            Filesize

            7.7MB

          • memory/1588-10-0x0000000006290000-0x00000000062F6000-memory.dmp

            Filesize

            408KB

          • memory/1588-6-0x0000000005BF0000-0x000000000621A000-memory.dmp

            Filesize

            6.2MB

          • memory/1588-4-0x000000007474E000-0x000000007474F000-memory.dmp

            Filesize

            4KB

          • memory/1588-5-0x0000000003390000-0x00000000033C6000-memory.dmp

            Filesize

            216KB

          • memory/1588-21-0x0000000006870000-0x000000000688E000-memory.dmp

            Filesize

            120KB

          • memory/1588-11-0x0000000006300000-0x0000000006366000-memory.dmp

            Filesize

            408KB

          • memory/1588-20-0x0000000006390000-0x00000000066E7000-memory.dmp

            Filesize

            3.3MB

          • memory/1588-7-0x0000000074740000-0x0000000074EF1000-memory.dmp

            Filesize

            7.7MB

          • memory/1916-73-0x0000000005060000-0x000000000594B000-memory.dmp

            Filesize

            8.9MB

          • memory/1916-72-0x00000000032B0000-0x00000000036B7000-memory.dmp

            Filesize

            4.0MB

          • memory/1916-1-0x00000000032B0000-0x00000000036B7000-memory.dmp

            Filesize

            4.0MB

          • memory/1916-128-0x0000000000400000-0x0000000000D1C000-memory.dmp

            Filesize

            9.1MB

          • memory/1916-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

            Filesize

            9.1MB

          • memory/1916-50-0x0000000000400000-0x0000000002EDD000-memory.dmp

            Filesize

            42.9MB

          • memory/1916-2-0x0000000005060000-0x000000000594B000-memory.dmp

            Filesize

            8.9MB

          • memory/2072-213-0x0000000000400000-0x0000000002EDD000-memory.dmp

            Filesize

            42.9MB

          • memory/2072-198-0x0000000000400000-0x0000000002EDD000-memory.dmp

            Filesize

            42.9MB

          • memory/2072-201-0x0000000000400000-0x0000000002EDD000-memory.dmp

            Filesize

            42.9MB

          • memory/2072-195-0x0000000000400000-0x0000000002EDD000-memory.dmp

            Filesize

            42.9MB

          • memory/2072-204-0x0000000000400000-0x0000000002EDD000-memory.dmp

            Filesize

            42.9MB

          • memory/2072-207-0x0000000000400000-0x0000000002EDD000-memory.dmp

            Filesize

            42.9MB

          • memory/2072-210-0x0000000000400000-0x0000000002EDD000-memory.dmp

            Filesize

            42.9MB

          • memory/2072-216-0x0000000000400000-0x0000000002EDD000-memory.dmp

            Filesize

            42.9MB

          • memory/2072-219-0x0000000000400000-0x0000000002EDD000-memory.dmp

            Filesize

            42.9MB

          • memory/2072-184-0x0000000000400000-0x0000000002EDD000-memory.dmp

            Filesize

            42.9MB

          • memory/2072-222-0x0000000000400000-0x0000000002EDD000-memory.dmp

            Filesize

            42.9MB

          • memory/2072-154-0x0000000000400000-0x0000000002EDD000-memory.dmp

            Filesize

            42.9MB

          • memory/2176-86-0x00000000055A0000-0x00000000058F7000-memory.dmp

            Filesize

            3.3MB

          • memory/2176-89-0x0000000070C20000-0x0000000070F77000-memory.dmp

            Filesize

            3.3MB

          • memory/2176-88-0x00000000709B0000-0x00000000709FC000-memory.dmp

            Filesize

            304KB

          • memory/2216-168-0x0000000070B20000-0x0000000070E77000-memory.dmp

            Filesize

            3.3MB

          • memory/2216-167-0x00000000708D0000-0x000000007091C000-memory.dmp

            Filesize

            304KB

          • memory/2216-164-0x0000000005D80000-0x00000000060D7000-memory.dmp

            Filesize

            3.3MB

          • memory/2236-143-0x0000000070B00000-0x0000000070E57000-memory.dmp

            Filesize

            3.3MB

          • memory/2236-152-0x0000000007550000-0x00000000075F4000-memory.dmp

            Filesize

            656KB

          • memory/2236-142-0x00000000708D0000-0x000000007091C000-memory.dmp

            Filesize

            304KB

          • memory/2236-141-0x0000000006840000-0x000000000688C000-memory.dmp

            Filesize

            304KB

          • memory/2236-155-0x00000000060B0000-0x00000000060C5000-memory.dmp

            Filesize

            84KB

          • memory/2236-153-0x00000000078D0000-0x00000000078E1000-memory.dmp

            Filesize

            68KB

          • memory/2236-139-0x0000000005CF0000-0x0000000006047000-memory.dmp

            Filesize

            3.3MB

          • memory/3136-111-0x00000000709B0000-0x00000000709FC000-memory.dmp

            Filesize

            304KB

          • memory/3136-101-0x0000000005F80000-0x00000000062D7000-memory.dmp

            Filesize

            3.3MB

          • memory/3136-112-0x0000000070C00000-0x0000000070F57000-memory.dmp

            Filesize

            3.3MB

          • memory/4180-125-0x0000000000400000-0x0000000002EDD000-memory.dmp

            Filesize

            42.9MB

          • memory/4180-99-0x0000000000400000-0x0000000002EDD000-memory.dmp

            Filesize

            42.9MB

          • memory/4240-74-0x00000000077A0000-0x00000000077B5000-memory.dmp

            Filesize

            84KB

          • memory/4240-71-0x0000000007750000-0x0000000007761000-memory.dmp

            Filesize

            68KB

          • memory/4240-70-0x0000000007430000-0x00000000074D4000-memory.dmp

            Filesize

            656KB

          • memory/4240-61-0x0000000070B50000-0x0000000070EA7000-memory.dmp

            Filesize

            3.3MB

          • memory/4240-60-0x00000000709B0000-0x00000000709FC000-memory.dmp

            Filesize

            304KB

          • memory/4240-59-0x0000000005CC0000-0x0000000006017000-memory.dmp

            Filesize

            3.3MB

          • memory/4616-188-0x0000000000400000-0x00000000008DF000-memory.dmp

            Filesize

            4.9MB

          • memory/4616-193-0x0000000000400000-0x00000000008DF000-memory.dmp

            Filesize

            4.9MB