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Analysis
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max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
21/12/2024, 19:49
Behavioral task
behavioral1
Sample
2024-12-21_56ce01da610cf60699401c12a3dbccb0_wannacry.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-12-21_56ce01da610cf60699401c12a3dbccb0_wannacry.exe
Resource
win10v2004-20241007-en
General
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Target
2024-12-21_56ce01da610cf60699401c12a3dbccb0_wannacry.exe
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Size
1.3MB
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MD5
56ce01da610cf60699401c12a3dbccb0
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SHA1
617c2e01a5349782fa8689f9443dcc5c9c7b5180
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SHA256
f9ed10f8353aef97c128cbe39aaaedf01db717e990f45680f4045b99304a0285
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SHA512
a2660fd29649c7a207bfde3fd5e5a9f6db77ea6cfde36974b0d5611e6bb00a242dbb5f2d0b465e845ab81b4f3c8e6db282a59dfc85464e39fa3ff43cd3c29d61
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SSDEEP
12288:4/weO8te/Elj30M9XKGlZOPHsejzfqnN+ByLWJXonZP3g3nTfrWzNnT4yi0krJts:IkDcZrEqC6BGx8GLvOqYaky
Malware Config
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/1872-1-0x0000000000E30000-0x0000000000F78000-memory.dmp family_chaos behavioral1/files/0x000d000000016aa9-6.dat family_chaos behavioral1/memory/1588-8-0x0000000001150000-0x0000000001298000-memory.dmp family_chaos -
Chaos family
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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 1484 bcdedit.exe 1132 bcdedit.exe -
pid Process 2712 wbadmin.exe -
Disables Task Manager via registry modification
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Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 1588 svchost.exe -
Reads user/profile data of web browsers 3 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-1-5-21-1846800975-3917212583-2893086201-1000\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\Admin\Links\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\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\75GKCLJR\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\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\L7XNHY48\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\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\Y8O71085\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\Music\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\Feeds Cache\GY8QW6M2\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\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\Public\Videos\Sample Videos\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\Admin\Pictures\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-1846800975-3917212583-2893086201-1000\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\Public\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\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\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\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\History\History.IE5\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\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\Public\Recorded TV\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\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links for United States\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\Favorites\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\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\Ringtones\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\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\Public\Recorded TV\Sample Media\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\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\GKATPXW1\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\6GFIGH6G\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\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\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\Public\Pictures\Sample Pictures\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\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\GUJ7UW2N\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\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\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\Public\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\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\3W44XPEP\desktop.ini svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9cchm32l3.jpg" 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 2832 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 848 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1588 svchost.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1872 2024-12-21_56ce01da610cf60699401c12a3dbccb0_wannacry.exe 1872 2024-12-21_56ce01da610cf60699401c12a3dbccb0_wannacry.exe 1872 2024-12-21_56ce01da610cf60699401c12a3dbccb0_wannacry.exe 1588 svchost.exe 1588 svchost.exe 1588 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 1872 2024-12-21_56ce01da610cf60699401c12a3dbccb0_wannacry.exe Token: SeDebugPrivilege 1588 svchost.exe Token: SeBackupPrivilege 2780 vssvc.exe Token: SeRestorePrivilege 2780 vssvc.exe Token: SeAuditPrivilege 2780 vssvc.exe Token: SeIncreaseQuotaPrivilege 2128 WMIC.exe Token: SeSecurityPrivilege 2128 WMIC.exe Token: SeTakeOwnershipPrivilege 2128 WMIC.exe Token: SeLoadDriverPrivilege 2128 WMIC.exe Token: SeSystemProfilePrivilege 2128 WMIC.exe Token: SeSystemtimePrivilege 2128 WMIC.exe Token: SeProfSingleProcessPrivilege 2128 WMIC.exe Token: SeIncBasePriorityPrivilege 2128 WMIC.exe Token: SeCreatePagefilePrivilege 2128 WMIC.exe Token: SeBackupPrivilege 2128 WMIC.exe Token: SeRestorePrivilege 2128 WMIC.exe Token: SeShutdownPrivilege 2128 WMIC.exe Token: SeDebugPrivilege 2128 WMIC.exe Token: SeSystemEnvironmentPrivilege 2128 WMIC.exe Token: SeRemoteShutdownPrivilege 2128 WMIC.exe Token: SeUndockPrivilege 2128 WMIC.exe Token: SeManageVolumePrivilege 2128 WMIC.exe Token: 33 2128 WMIC.exe Token: 34 2128 WMIC.exe Token: 35 2128 WMIC.exe Token: SeIncreaseQuotaPrivilege 2128 WMIC.exe Token: SeSecurityPrivilege 2128 WMIC.exe Token: SeTakeOwnershipPrivilege 2128 WMIC.exe Token: SeLoadDriverPrivilege 2128 WMIC.exe Token: SeSystemProfilePrivilege 2128 WMIC.exe Token: SeSystemtimePrivilege 2128 WMIC.exe Token: SeProfSingleProcessPrivilege 2128 WMIC.exe Token: SeIncBasePriorityPrivilege 2128 WMIC.exe Token: SeCreatePagefilePrivilege 2128 WMIC.exe Token: SeBackupPrivilege 2128 WMIC.exe Token: SeRestorePrivilege 2128 WMIC.exe Token: SeShutdownPrivilege 2128 WMIC.exe Token: SeDebugPrivilege 2128 WMIC.exe Token: SeSystemEnvironmentPrivilege 2128 WMIC.exe Token: SeRemoteShutdownPrivilege 2128 WMIC.exe Token: SeUndockPrivilege 2128 WMIC.exe Token: SeManageVolumePrivilege 2128 WMIC.exe Token: 33 2128 WMIC.exe Token: 34 2128 WMIC.exe Token: 35 2128 WMIC.exe Token: SeBackupPrivilege 2164 wbengine.exe Token: SeRestorePrivilege 2164 wbengine.exe Token: SeSecurityPrivilege 2164 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 1872 wrote to memory of 1588 1872 2024-12-21_56ce01da610cf60699401c12a3dbccb0_wannacry.exe 30 PID 1872 wrote to memory of 1588 1872 2024-12-21_56ce01da610cf60699401c12a3dbccb0_wannacry.exe 30 PID 1872 wrote to memory of 1588 1872 2024-12-21_56ce01da610cf60699401c12a3dbccb0_wannacry.exe 30 PID 1588 wrote to memory of 2768 1588 svchost.exe 31 PID 1588 wrote to memory of 2768 1588 svchost.exe 31 PID 1588 wrote to memory of 2768 1588 svchost.exe 31 PID 2768 wrote to memory of 2832 2768 cmd.exe 33 PID 2768 wrote to memory of 2832 2768 cmd.exe 33 PID 2768 wrote to memory of 2832 2768 cmd.exe 33 PID 2768 wrote to memory of 2128 2768 cmd.exe 36 PID 2768 wrote to memory of 2128 2768 cmd.exe 36 PID 2768 wrote to memory of 2128 2768 cmd.exe 36 PID 1588 wrote to memory of 564 1588 svchost.exe 38 PID 1588 wrote to memory of 564 1588 svchost.exe 38 PID 1588 wrote to memory of 564 1588 svchost.exe 38 PID 564 wrote to memory of 1484 564 cmd.exe 40 PID 564 wrote to memory of 1484 564 cmd.exe 40 PID 564 wrote to memory of 1484 564 cmd.exe 40 PID 564 wrote to memory of 1132 564 cmd.exe 41 PID 564 wrote to memory of 1132 564 cmd.exe 41 PID 564 wrote to memory of 1132 564 cmd.exe 41 PID 1588 wrote to memory of 2972 1588 svchost.exe 42 PID 1588 wrote to memory of 2972 1588 svchost.exe 42 PID 1588 wrote to memory of 2972 1588 svchost.exe 42 PID 2972 wrote to memory of 2712 2972 cmd.exe 44 PID 2972 wrote to memory of 2712 2972 cmd.exe 44 PID 2972 wrote to memory of 2712 2972 cmd.exe 44 PID 1588 wrote to memory of 848 1588 svchost.exe 49 PID 1588 wrote to memory of 848 1588 svchost.exe 49 PID 1588 wrote to memory of 848 1588 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\2024-12-21_56ce01da610cf60699401c12a3dbccb0_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-21_56ce01da610cf60699401c12a3dbccb0_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1872 -
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)
- Sets desktop wallpaper using registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1588 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2768 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2832
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2128
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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:564 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1484
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:1132
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2972 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2712
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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:848
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2780
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2164
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2612
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:2448
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Direct Volume Access
1Indicator Removal
3File Deletion
3Modify Registry
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.3MB
MD556ce01da610cf60699401c12a3dbccb0
SHA1617c2e01a5349782fa8689f9443dcc5c9c7b5180
SHA256f9ed10f8353aef97c128cbe39aaaedf01db717e990f45680f4045b99304a0285
SHA512a2660fd29649c7a207bfde3fd5e5a9f6db77ea6cfde36974b0d5611e6bb00a242dbb5f2d0b465e845ab81b4f3c8e6db282a59dfc85464e39fa3ff43cd3c29d61
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Filesize
288B
MD59f5e51975e60624345f3436146084f9e
SHA1f0b548d8e8568abba8fe4f9c32ed0fd0f0666d3c
SHA256fff125aed1c85389bbd02f42acada11526cf4d87e51c899e6d8cf9f3dfa2bd13
SHA5122325dd039cb255be05aa274186e1369401cfef3bfaa2ccfab39f9f95bffda5ab206fff2d538eafdea8ea49aba96ab82248c43083ed60b121b4b2765adcec22c6
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0