Analysis
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max time kernel
143s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
19-04-2024 23:50
Static task
static1
Behavioral task
behavioral1
Sample
5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exe
Resource
win10v2004-20240226-en
General
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Target
5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exe
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Size
1.8MB
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MD5
d4e4c663dc562932f60b63d2b9655f4e
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SHA1
102f98797226b0eb90e80ea015dad4386e470c51
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SHA256
5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a
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SHA512
37d610fc89906ddfa52e879ecf66365aa06fd6587aea58dba0bf0232d95f85ac88b7f7f38104d16fdc327720e3dc044d74de63ac40aab422d003ac1bcf5a849d
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SSDEEP
24576:sV74iACVrKd/ZiKUYaoJn11P4taUdhBR6JdSb0dmXsBTWmLf/L77g36n+AhyWhSd:GjKFF4oUvBknZdmu38AhThSoaGD4lp
Malware Config
Extracted
amadey
4.17
http://193.233.132.167
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install_dir
4d0ab15804
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install_file
chrosha.exe
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strings_key
1a9519d7b465e1f4880fa09a6162d768
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url_paths
/enigma/index.php
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
Processes:
5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exechrosha.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ chrosha.exe -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exerundll32.exeflow pid process 56 960 rundll32.exe 57 1112 rundll32.exe -
Downloads MZ/PE file
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Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exechrosha.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion chrosha.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion chrosha.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
chrosha.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation chrosha.exe -
Executes dropped EXE 1 IoCs
Processes:
chrosha.exepid process 2596 chrosha.exe -
Identifies Wine through registry keys 2 TTPs 2 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
Processes:
5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exechrosha.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Wine 5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exe Key opened \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Wine chrosha.exe -
Loads dropped DLL 3 IoCs
Processes:
rundll32.exerundll32.exerundll32.exepid process 2476 rundll32.exe 960 rundll32.exe 1112 rundll32.exe -
Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exechrosha.exepid process 3484 5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exe 2596 chrosha.exe -
Drops file in Windows directory 1 IoCs
Processes:
5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exedescription ioc process File created C:\Windows\Tasks\chrosha.job 5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 17 IoCs
Processes:
5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exechrosha.exerundll32.exepowershell.exepid process 3484 5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exe 3484 5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exe 2596 chrosha.exe 2596 chrosha.exe 960 rundll32.exe 960 rundll32.exe 960 rundll32.exe 960 rundll32.exe 960 rundll32.exe 960 rundll32.exe 960 rundll32.exe 960 rundll32.exe 960 rundll32.exe 960 rundll32.exe 3344 powershell.exe 3344 powershell.exe 3344 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 3344 powershell.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exepid process 3484 5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
chrosha.exerundll32.exerundll32.exedescription pid process target process PID 2596 wrote to memory of 2476 2596 chrosha.exe rundll32.exe PID 2596 wrote to memory of 2476 2596 chrosha.exe rundll32.exe PID 2596 wrote to memory of 2476 2596 chrosha.exe rundll32.exe PID 2476 wrote to memory of 960 2476 rundll32.exe rundll32.exe PID 2476 wrote to memory of 960 2476 rundll32.exe rundll32.exe PID 960 wrote to memory of 5012 960 rundll32.exe netsh.exe PID 960 wrote to memory of 5012 960 rundll32.exe netsh.exe PID 960 wrote to memory of 3344 960 rundll32.exe powershell.exe PID 960 wrote to memory of 3344 960 rundll32.exe powershell.exe PID 2596 wrote to memory of 1112 2596 chrosha.exe rundll32.exe PID 2596 wrote to memory of 1112 2596 chrosha.exe rundll32.exe PID 2596 wrote to memory of 1112 2596 chrosha.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exe"C:\Users\Admin\AppData\Local\Temp\5b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
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C:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exeC:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dll, Main2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dll, Main3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command Compress-Archive -Path 'C:\Users\Admin\AppData\Local\Temp\_Files_\' -DestinationPath 'C:\Users\Admin\AppData\Local\Temp\808065738166_Desktop.zip' -CompressionLevel Optimal4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\clip64.dll, Main2⤵
- Blocklisted process makes network request
- Loads dropped DLL
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4240 --field-trial-handle=2656,i,16940681401824032220,151921362336696246,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exeFilesize
1.8MB
MD5d4e4c663dc562932f60b63d2b9655f4e
SHA1102f98797226b0eb90e80ea015dad4386e470c51
SHA2565b17fd453cbcebf186fd1d5181c8baf039f4b8cd24561eabfe4ea75317c7379a
SHA51237d610fc89906ddfa52e879ecf66365aa06fd6587aea58dba0bf0232d95f85ac88b7f7f38104d16fdc327720e3dc044d74de63ac40aab422d003ac1bcf5a849d
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lg2dja2s.alg.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\clip64.dllFilesize
109KB
MD5154c3f1334dd435f562672f2664fea6b
SHA151dd25e2ba98b8546de163b8f26e2972a90c2c79
SHA2565f431129f97f3d56929f1e5584819e091bd6c854d7e18503074737fc6d79e33f
SHA5121bca69bbcdb7ecd418769e9d4befc458f9f8e3cee81feb7316bb61e189e2904f4431e4cc7d291e179a5dec441b959d428d8e433f579036f763bbad6460222841
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C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dllFilesize
1.2MB
MD5f35b671fda2603ec30ace10946f11a90
SHA1059ad6b06559d4db581b1879e709f32f80850872
SHA25683e3df5bec15d5333935bea8b719a6d677e2fb3dc1cf9e18e7b82fd0438285c7
SHA512b5fa27d08c64727cef7fdda5e68054a4359cd697df50d70d1d90da583195959a139066a6214531bbc5f20cd4f9bc1ca3e4244396547381291a6a1d2df9cf8705
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memory/2596-43-0x0000000000EE0000-0x000000000138D000-memory.dmpFilesize
4.7MB
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memory/2596-20-0x0000000000EE0000-0x000000000138D000-memory.dmpFilesize
4.7MB
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memory/2596-79-0x0000000000EE0000-0x000000000138D000-memory.dmpFilesize
4.7MB
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memory/2596-78-0x0000000000EE0000-0x000000000138D000-memory.dmpFilesize
4.7MB
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memory/2596-77-0x0000000000EE0000-0x000000000138D000-memory.dmpFilesize
4.7MB
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memory/2596-76-0x0000000000EE0000-0x000000000138D000-memory.dmpFilesize
4.7MB
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memory/2596-81-0x0000000000EE0000-0x000000000138D000-memory.dmpFilesize
4.7MB
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memory/2596-82-0x0000000000EE0000-0x000000000138D000-memory.dmpFilesize
4.7MB
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memory/2596-83-0x0000000000EE0000-0x000000000138D000-memory.dmpFilesize
4.7MB
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memory/2596-42-0x0000000000EE0000-0x000000000138D000-memory.dmpFilesize
4.7MB
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memory/2596-84-0x0000000000EE0000-0x000000000138D000-memory.dmpFilesize
4.7MB
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memory/2596-80-0x0000000000EE0000-0x000000000138D000-memory.dmpFilesize
4.7MB
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memory/2596-24-0x0000000004B40000-0x0000000004B41000-memory.dmpFilesize
4KB
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memory/2596-23-0x0000000004B60000-0x0000000004B61000-memory.dmpFilesize
4KB
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memory/2596-22-0x0000000004B50000-0x0000000004B51000-memory.dmpFilesize
4KB
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memory/2596-21-0x0000000000EE0000-0x000000000138D000-memory.dmpFilesize
4.7MB
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memory/2596-25-0x0000000004B80000-0x0000000004B81000-memory.dmpFilesize
4KB
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memory/2596-27-0x0000000004B30000-0x0000000004B31000-memory.dmpFilesize
4KB
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memory/2596-26-0x0000000004B20000-0x0000000004B21000-memory.dmpFilesize
4KB
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memory/2596-28-0x0000000004BA0000-0x0000000004BA1000-memory.dmpFilesize
4KB
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memory/2596-29-0x0000000000EE0000-0x000000000138D000-memory.dmpFilesize
4.7MB
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memory/3344-57-0x00000268BC390000-0x00000268BC3A2000-memory.dmpFilesize
72KB
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memory/3344-56-0x00000268B97C0000-0x00000268B97D0000-memory.dmpFilesize
64KB
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memory/3344-64-0x00007FFCA1E10000-0x00007FFCA28D1000-memory.dmpFilesize
10.8MB
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memory/3344-44-0x00000268B9780000-0x00000268B97A2000-memory.dmpFilesize
136KB
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memory/3344-58-0x00000268B97B0000-0x00000268B97BA000-memory.dmpFilesize
40KB
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memory/3344-54-0x00007FFCA1E10000-0x00007FFCA28D1000-memory.dmpFilesize
10.8MB
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memory/3344-55-0x00000268B97C0000-0x00000268B97D0000-memory.dmpFilesize
64KB
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memory/3484-10-0x0000000004F90000-0x0000000004F91000-memory.dmpFilesize
4KB
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memory/3484-7-0x0000000004F00000-0x0000000004F01000-memory.dmpFilesize
4KB
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memory/3484-11-0x0000000004F80000-0x0000000004F81000-memory.dmpFilesize
4KB
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memory/3484-13-0x0000000000C90000-0x000000000113D000-memory.dmpFilesize
4.7MB
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memory/3484-17-0x0000000000C90000-0x000000000113D000-memory.dmpFilesize
4.7MB
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memory/3484-9-0x0000000004F60000-0x0000000004F61000-memory.dmpFilesize
4KB
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memory/3484-8-0x0000000004F10000-0x0000000004F11000-memory.dmpFilesize
4KB
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memory/3484-0-0x0000000000C90000-0x000000000113D000-memory.dmpFilesize
4.7MB
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memory/3484-6-0x0000000004F70000-0x0000000004F71000-memory.dmpFilesize
4KB
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memory/3484-5-0x0000000004F20000-0x0000000004F21000-memory.dmpFilesize
4KB
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memory/3484-4-0x0000000004F40000-0x0000000004F41000-memory.dmpFilesize
4KB
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memory/3484-3-0x0000000004F30000-0x0000000004F31000-memory.dmpFilesize
4KB
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memory/3484-2-0x0000000000C90000-0x000000000113D000-memory.dmpFilesize
4.7MB
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memory/3484-1-0x00000000778A4000-0x00000000778A6000-memory.dmpFilesize
8KB