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Analysis
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max time kernel
122s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
29/07/2024, 14:30
Behavioral task
behavioral1
Sample
2024-07-29_516e90f138bccb7975aa2d22ccf2beb3_destroyer_wannacry.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
2024-07-29_516e90f138bccb7975aa2d22ccf2beb3_destroyer_wannacry.exe
Resource
win10v2004-20240709-en
General
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Target
2024-07-29_516e90f138bccb7975aa2d22ccf2beb3_destroyer_wannacry.exe
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Size
27KB
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MD5
516e90f138bccb7975aa2d22ccf2beb3
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SHA1
8c03783ab7776923af0a4fdd9757b029cf5be36d
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SHA256
86d300efdf5211c9f33bcc1284609cbb1f264fe10e1ec7000a66021704606afa
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SHA512
52a7f37deccd901263ff2e778f66f245fe8409e8c9dff82f334c7531cfa437407d3dda287e427f6526b3e077478554ca760bb0db3ef0ae6238a9b780797d6207
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SSDEEP
384:utWZPzzxAm1vp5ZRoDtEWx0OeuBbLulZV2Oy5o91fyDp282v2:z7zxAmpfyt70Oeu1Vho9YU82u
Malware Config
Extracted
C:\ProgramData\Adobe\Updater6\read_it.txt
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 3 IoCs
resource yara_rule behavioral1/memory/2292-1-0x0000000001240000-0x000000000124E000-memory.dmp family_chaos behavioral1/files/0x000c000000016d28-5.dat family_chaos behavioral1/memory/2904-8-0x0000000000D30000-0x0000000000D3E000-memory.dmp family_chaos -
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 2900 bcdedit.exe 2572 bcdedit.exe -
pid Process 1732 wbadmin.exe -
Disables Task Manager via registry modification
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Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2904 svchost.exe -
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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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\UpdateTask = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe" svchost.exe -
Drops desktop.ini file(s) 64 IoCs
description ioc Process File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\UGUBWRQR\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\U42VY3XA\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\VUPQHL12\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\History.IE5\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Recorded TV\Sample Media\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\CGY9ZAGI\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\TWVGEE8A\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\4NH6FMWO\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Games\Desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\SX809FAK\desktop.ini svchost.exe File opened for modification C:\Users\Public\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Ringtones\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2212144002-1172735686-1556890956-1000\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Tablet PC\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2644 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2488 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 2292 2024-07-29_516e90f138bccb7975aa2d22ccf2beb3_destroyer_wannacry.exe 2904 svchost.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2292 2024-07-29_516e90f138bccb7975aa2d22ccf2beb3_destroyer_wannacry.exe 2292 2024-07-29_516e90f138bccb7975aa2d22ccf2beb3_destroyer_wannacry.exe 2292 2024-07-29_516e90f138bccb7975aa2d22ccf2beb3_destroyer_wannacry.exe 2904 svchost.exe 2904 svchost.exe 2904 svchost.exe 2904 svchost.exe 2904 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2292 2024-07-29_516e90f138bccb7975aa2d22ccf2beb3_destroyer_wannacry.exe Token: SeDebugPrivilege 2904 svchost.exe Token: SeBackupPrivilege 2712 vssvc.exe Token: SeRestorePrivilege 2712 vssvc.exe Token: SeAuditPrivilege 2712 vssvc.exe Token: SeIncreaseQuotaPrivilege 2240 WMIC.exe Token: SeSecurityPrivilege 2240 WMIC.exe Token: SeTakeOwnershipPrivilege 2240 WMIC.exe Token: SeLoadDriverPrivilege 2240 WMIC.exe Token: SeSystemProfilePrivilege 2240 WMIC.exe Token: SeSystemtimePrivilege 2240 WMIC.exe Token: SeProfSingleProcessPrivilege 2240 WMIC.exe Token: SeIncBasePriorityPrivilege 2240 WMIC.exe Token: SeCreatePagefilePrivilege 2240 WMIC.exe Token: SeBackupPrivilege 2240 WMIC.exe Token: SeRestorePrivilege 2240 WMIC.exe Token: SeShutdownPrivilege 2240 WMIC.exe Token: SeDebugPrivilege 2240 WMIC.exe Token: SeSystemEnvironmentPrivilege 2240 WMIC.exe Token: SeRemoteShutdownPrivilege 2240 WMIC.exe Token: SeUndockPrivilege 2240 WMIC.exe Token: SeManageVolumePrivilege 2240 WMIC.exe Token: 33 2240 WMIC.exe Token: 34 2240 WMIC.exe Token: 35 2240 WMIC.exe Token: SeIncreaseQuotaPrivilege 2240 WMIC.exe Token: SeSecurityPrivilege 2240 WMIC.exe Token: SeTakeOwnershipPrivilege 2240 WMIC.exe Token: SeLoadDriverPrivilege 2240 WMIC.exe Token: SeSystemProfilePrivilege 2240 WMIC.exe Token: SeSystemtimePrivilege 2240 WMIC.exe Token: SeProfSingleProcessPrivilege 2240 WMIC.exe Token: SeIncBasePriorityPrivilege 2240 WMIC.exe Token: SeCreatePagefilePrivilege 2240 WMIC.exe Token: SeBackupPrivilege 2240 WMIC.exe Token: SeRestorePrivilege 2240 WMIC.exe Token: SeShutdownPrivilege 2240 WMIC.exe Token: SeDebugPrivilege 2240 WMIC.exe Token: SeSystemEnvironmentPrivilege 2240 WMIC.exe Token: SeRemoteShutdownPrivilege 2240 WMIC.exe Token: SeUndockPrivilege 2240 WMIC.exe Token: SeManageVolumePrivilege 2240 WMIC.exe Token: 33 2240 WMIC.exe Token: 34 2240 WMIC.exe Token: 35 2240 WMIC.exe Token: SeBackupPrivilege 2864 wbengine.exe Token: SeRestorePrivilege 2864 wbengine.exe Token: SeSecurityPrivilege 2864 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2292 wrote to memory of 2904 2292 2024-07-29_516e90f138bccb7975aa2d22ccf2beb3_destroyer_wannacry.exe 30 PID 2292 wrote to memory of 2904 2292 2024-07-29_516e90f138bccb7975aa2d22ccf2beb3_destroyer_wannacry.exe 30 PID 2292 wrote to memory of 2904 2292 2024-07-29_516e90f138bccb7975aa2d22ccf2beb3_destroyer_wannacry.exe 30 PID 2904 wrote to memory of 2736 2904 svchost.exe 31 PID 2904 wrote to memory of 2736 2904 svchost.exe 31 PID 2904 wrote to memory of 2736 2904 svchost.exe 31 PID 2736 wrote to memory of 2644 2736 cmd.exe 33 PID 2736 wrote to memory of 2644 2736 cmd.exe 33 PID 2736 wrote to memory of 2644 2736 cmd.exe 33 PID 2736 wrote to memory of 2240 2736 cmd.exe 36 PID 2736 wrote to memory of 2240 2736 cmd.exe 36 PID 2736 wrote to memory of 2240 2736 cmd.exe 36 PID 2904 wrote to memory of 1824 2904 svchost.exe 38 PID 2904 wrote to memory of 1824 2904 svchost.exe 38 PID 2904 wrote to memory of 1824 2904 svchost.exe 38 PID 1824 wrote to memory of 2900 1824 cmd.exe 40 PID 1824 wrote to memory of 2900 1824 cmd.exe 40 PID 1824 wrote to memory of 2900 1824 cmd.exe 40 PID 1824 wrote to memory of 2572 1824 cmd.exe 41 PID 1824 wrote to memory of 2572 1824 cmd.exe 41 PID 1824 wrote to memory of 2572 1824 cmd.exe 41 PID 2904 wrote to memory of 2808 2904 svchost.exe 42 PID 2904 wrote to memory of 2808 2904 svchost.exe 42 PID 2904 wrote to memory of 2808 2904 svchost.exe 42 PID 2808 wrote to memory of 1732 2808 cmd.exe 44 PID 2808 wrote to memory of 1732 2808 cmd.exe 44 PID 2808 wrote to memory of 1732 2808 cmd.exe 44 PID 2904 wrote to memory of 2488 2904 svchost.exe 49 PID 2904 wrote to memory of 2488 2904 svchost.exe 49 PID 2904 wrote to memory of 2488 2904 svchost.exe 49 -
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.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-07-29_516e90f138bccb7975aa2d22ccf2beb3_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-07-29_516e90f138bccb7975aa2d22ccf2beb3_destroyer_wannacry.exe"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2292 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Drops desktop.ini file(s)
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2904 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2736 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2644
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2240
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no3⤵
- Suspicious use of WriteProcessMemory
PID:1824 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2900
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2572
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2808 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1732
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt3⤵
- Opens file in notepad (likely ransom note)
PID:2488
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2712
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2864
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1724
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:1028
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
582B
MD5ed5cc52876db869de48a4783069c2a5e
SHA1a9d51ceaeff715ace430f9462ab2ee4e7f33e70e
SHA25645726f2f29967ef016f8d556fb6468a577307d67388cc4530295a9ca10fdfa36
SHA5121745aefb9b4db4cdd7c08ee3a7d133db08f35a336fd18b598211519b481ef25ac84a3e8a3da3db06caef9f531288d1cf0ca8d4b2560637945e7953e8b45421f5
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Filesize
27KB
MD5516e90f138bccb7975aa2d22ccf2beb3
SHA18c03783ab7776923af0a4fdd9757b029cf5be36d
SHA25686d300efdf5211c9f33bcc1284609cbb1f264fe10e1ec7000a66021704606afa
SHA51252a7f37deccd901263ff2e778f66f245fe8409e8c9dff82f334c7531cfa437407d3dda287e427f6526b3e077478554ca760bb0db3ef0ae6238a9b780797d6207
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0