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Analysis
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max time kernel
135s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
04/12/2022, 01:52
Static task
static1
Behavioral task
behavioral1
Sample
d25b088ecad173defdc14a3ef00db616bc5f286356ef87b757d758c859ca5feb.dll
Resource
win7-20220901-en
windows7-x64
12 signatures
150 seconds
General
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Target
d25b088ecad173defdc14a3ef00db616bc5f286356ef87b757d758c859ca5feb.dll
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Size
156KB
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MD5
7f82e8c29399ef847e31b18c7ab16c40
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SHA1
3548b8dbc63ae79caf86cbfee32b85dfca04fd85
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SHA256
d25b088ecad173defdc14a3ef00db616bc5f286356ef87b757d758c859ca5feb
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SHA512
1628907a5f695b76b55addd94c85b229ebbe8e699febb05d1bb39e2d71a82875f2ee5c279a8c40a3cdec08668e5d32126f8cc12e15ec9f8a924c1e77174e7136
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SSDEEP
3072:+vvtPYAmcGFdDVWhoCjawGfHnM1gW21LUjqQFqWWoOt05/:QvZYHqhokawUnM+X9qdFqWWz0
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 1268 regsvr32Srv.exe 4172 DesktopLayer.exe -
resource yara_rule behavioral2/memory/1268-138-0x0000000000400000-0x0000000000423000-memory.dmp upx behavioral2/memory/4172-142-0x0000000000400000-0x0000000000423000-memory.dmp upx -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\regsvr32Srv.exe regsvr32.exe -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe regsvr32Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\pxA240.tmp regsvr32Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe regsvr32Srv.exe -
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "242729442" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "377180470" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "251166880" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31001142" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "242729442" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31001142" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{388995CB-7629-11ED-89AC-C264E7FE3618} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31001142" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe -
Modifies registry class 35 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{01CF74F5-A313-4CEA-AAC7-D4A983B5B125}\0.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{edb8b35d-c15f-4e45-9658-50d7f8addb56}\ = "Sample WIA dialog extension" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{edb8b35d-c15f-4e45-9658-50d7f8addb56}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D51DE17F-33FD-496b-9E9F-7B0E16AA0117}\shellex\WiaDialogExtensionHandlers regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7FACF624-63F9-4fe9-81F1-C65CBDA79305}\shellex\WiaDialogExtensionHandlers\{edb8b35d-c15f-4e45-9658-50d7f8addb56}\ = "Sample extension" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{01CF74F5-A313-4CEA-AAC7-D4A983B5B125}\0.0\ = "WIASampleExtLib" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{01CF74F5-A313-4CEA-AAC7-D4A983B5B125}\0.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{01CF74F5-A313-4CEA-AAC7-D4A983B5B125}\0.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{01CF74F5-A313-4CEA-AAC7-D4A983B5B125}\0.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a7f9264a-08bb-11d3-94b1-00805f6596d2}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b6c280f7-0f07-11d3-94c7-00805f6596d2}\ = "Sample WIA shell extension Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D51DE17F-33FD-496b-9E9F-7B0E16AA0117}\shellex regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D51DE17F-33FD-496b-9E9F-7B0E16AA0117}\shellex\WiaDialogExtensionHandlers\{edb8b35d-c15f-4e45-9658-50d7f8addb56} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7FACF624-63F9-4fe9-81F1-C65CBDA79305}\shellex\WiaDialogExtensionHandlers regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7FACF624-63F9-4fe9-81F1-C65CBDA79305}\shellex\WiaDialogExtensionHandlers\{edb8b35d-c15f-4e45-9658-50d7f8addb56} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{01CF74F5-A313-4CEA-AAC7-D4A983B5B125}\0.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{01CF74F5-A313-4CEA-AAC7-D4A983B5B125}\0.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\d25b088ecad173defdc14a3ef00db616bc5f286356ef87b757d758c859ca5feb.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a7f9264a-08bb-11d3-94b1-00805f6596d2}\ = "Sample WIAWebvwUI Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b6c280f7-0f07-11d3-94c7-00805f6596d2}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\d25b088ecad173defdc14a3ef00db616bc5f286356ef87b757d758c859ca5feb.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D51DE17F-33FD-496b-9E9F-7B0E16AA0117}\shellex\WiaDialogExtensionHandlers\{edb8b35d-c15f-4e45-9658-50d7f8addb56}\ = "Sample extension" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7FACF624-63F9-4fe9-81F1-C65CBDA79305} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{01CF74F5-A313-4CEA-AAC7-D4A983B5B125}\0.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a7f9264a-08bb-11d3-94b1-00805f6596d2} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a7f9264a-08bb-11d3-94b1-00805f6596d2}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D51DE17F-33FD-496b-9E9F-7B0E16AA0117} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7FACF624-63F9-4fe9-81F1-C65CBDA79305}\shellex regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b6c280f7-0f07-11d3-94c7-00805f6596d2}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{01CF74F5-A313-4CEA-AAC7-D4A983B5B125} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a7f9264a-08bb-11d3-94b1-00805f6596d2}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\d25b088ecad173defdc14a3ef00db616bc5f286356ef87b757d758c859ca5feb.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{edb8b35d-c15f-4e45-9658-50d7f8addb56}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{01CF74F5-A313-4CEA-AAC7-D4A983B5B125}\0.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b6c280f7-0f07-11d3-94c7-00805f6596d2} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b6c280f7-0f07-11d3-94c7-00805f6596d2}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{edb8b35d-c15f-4e45-9658-50d7f8addb56} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{edb8b35d-c15f-4e45-9658-50d7f8addb56}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\d25b088ecad173defdc14a3ef00db616bc5f286356ef87b757d758c859ca5feb.dll" regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 4172 DesktopLayer.exe 4172 DesktopLayer.exe 4172 DesktopLayer.exe 4172 DesktopLayer.exe 4172 DesktopLayer.exe 4172 DesktopLayer.exe 4172 DesktopLayer.exe 4172 DesktopLayer.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3692 iexplore.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3692 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 3692 iexplore.exe 3692 iexplore.exe 1564 IEXPLORE.EXE 1564 IEXPLORE.EXE 1564 IEXPLORE.EXE 1564 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2268 wrote to memory of 4580 2268 regsvr32.exe 81 PID 2268 wrote to memory of 4580 2268 regsvr32.exe 81 PID 2268 wrote to memory of 4580 2268 regsvr32.exe 81 PID 4580 wrote to memory of 1268 4580 regsvr32.exe 82 PID 4580 wrote to memory of 1268 4580 regsvr32.exe 82 PID 4580 wrote to memory of 1268 4580 regsvr32.exe 82 PID 1268 wrote to memory of 4172 1268 regsvr32Srv.exe 83 PID 1268 wrote to memory of 4172 1268 regsvr32Srv.exe 83 PID 1268 wrote to memory of 4172 1268 regsvr32Srv.exe 83 PID 4172 wrote to memory of 3692 4172 DesktopLayer.exe 84 PID 4172 wrote to memory of 3692 4172 DesktopLayer.exe 84 PID 3692 wrote to memory of 1564 3692 iexplore.exe 85 PID 3692 wrote to memory of 1564 3692 iexplore.exe 85 PID 3692 wrote to memory of 1564 3692 iexplore.exe 85
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\d25b088ecad173defdc14a3ef00db616bc5f286356ef87b757d758c859ca5feb.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2268 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\d25b088ecad173defdc14a3ef00db616bc5f286356ef87b757d758c859ca5feb.dll2⤵
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4580 -
C:\Windows\SysWOW64\regsvr32Srv.exeC:\Windows\SysWOW64\regsvr32Srv.exe3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1268 -
C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4172 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"5⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3692 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3692 CREDAT:17410 /prefetch:26⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1564
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
50KB
MD5f8881fe1811f65a6693c585856177e23
SHA1d23b0070d867ff43d9575a6a5deb895a72f33a4f
SHA256133665cba8e79ae696dbd97d8e95af26722e088c263c841e43ce1d2527a9c557
SHA5123cdae7158697c561c8180dd1c68f71d133b666d8a073549228830f0ca5ea87d6d339c35996a2f646d49980ac4a123347773f7dd68b801a1091ebbaa1f2ac4c38
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Filesize
50KB
MD5f8881fe1811f65a6693c585856177e23
SHA1d23b0070d867ff43d9575a6a5deb895a72f33a4f
SHA256133665cba8e79ae696dbd97d8e95af26722e088c263c841e43ce1d2527a9c557
SHA5123cdae7158697c561c8180dd1c68f71d133b666d8a073549228830f0ca5ea87d6d339c35996a2f646d49980ac4a123347773f7dd68b801a1091ebbaa1f2ac4c38
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize471B
MD5a62e66dbd157955d60808bf89987bcde
SHA1a97e8478902ac7db7fd904300304944a41afee8e
SHA256d34e72ae586b00a60e3526f1e75677dcffa83fd33860a771ae592e7d8320cf25
SHA5122c969c621bd5881acf47e85b3a2977b1c43dfa80887f0ab447327162d143795ff647b8ed1aec174a868c0faf1e09eb8baa6a67ea42764b65fe4416d2168e81fc
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize434B
MD5d387fe68457620a4471f460edb2a90aa
SHA15b103ca4fa0ada23f969c869aab04993139e8354
SHA2569c30b1c33ee401023c8166059c4baac7948003c15de88edd5a529d5390218108
SHA5129f2aa3c746fa0124c929667d2004213bf879c3b8788664992d92d1efc67933facf747b859bc48f4d30213918ca7d05e5f7981dcec81af1898c42c82a6fbb74c2
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Filesize
50KB
MD5f8881fe1811f65a6693c585856177e23
SHA1d23b0070d867ff43d9575a6a5deb895a72f33a4f
SHA256133665cba8e79ae696dbd97d8e95af26722e088c263c841e43ce1d2527a9c557
SHA5123cdae7158697c561c8180dd1c68f71d133b666d8a073549228830f0ca5ea87d6d339c35996a2f646d49980ac4a123347773f7dd68b801a1091ebbaa1f2ac4c38
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Filesize
50KB
MD5f8881fe1811f65a6693c585856177e23
SHA1d23b0070d867ff43d9575a6a5deb895a72f33a4f
SHA256133665cba8e79ae696dbd97d8e95af26722e088c263c841e43ce1d2527a9c557
SHA5123cdae7158697c561c8180dd1c68f71d133b666d8a073549228830f0ca5ea87d6d339c35996a2f646d49980ac4a123347773f7dd68b801a1091ebbaa1f2ac4c38