Analysis
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max time kernel
117s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
28/05/2024, 17:39
Behavioral task
behavioral1
Sample
2024-05-28_f43183982e1e945e6b4016ef17878334_destroyer_wannacry.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-05-28_f43183982e1e945e6b4016ef17878334_destroyer_wannacry.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-28_f43183982e1e945e6b4016ef17878334_destroyer_wannacry.exe
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Size
89KB
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MD5
f43183982e1e945e6b4016ef17878334
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SHA1
4601ee37490cefd2fd1d4ecd3fb7ef1624b80300
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SHA256
5af421300e6483ba025d74e6d6d3c62d4baa99675bda232ca2817820962574ae
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SHA512
0a13c0fdb0dea8b453c4d4f77926bf2e7d3bb01040fbc95a7897054f9b0bdc738234ee76c99a3d76eeb37fc5d3b6d4fdb50c3dfbde972ebd9f877a535b058130
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SSDEEP
1536:/qW9Tl+nb7VvhbwTdfs1NNkP1tU097CZYKBCVonLLpXM:SW9Tl+BhMTxSNNOU0h2FCVmfp8
Malware Config
Extracted
C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\read_it.txt
chaos
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/2196-1-0x0000000000BB0000-0x0000000000BCC000-memory.dmp family_chaos behavioral1/files/0x0009000000014b70-5.dat family_chaos behavioral1/memory/1860-7-0x00000000001D0000-0x00000000001EC000-memory.dmp family_chaos -
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Detects command variations typically used by ransomware 3 IoCs
resource yara_rule behavioral1/memory/2196-1-0x0000000000BB0000-0x0000000000BCC000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral1/files/0x0009000000014b70-5.dat INDICATOR_SUSPICIOUS_GENRansomware behavioral1/memory/1860-7-0x00000000001D0000-0x00000000001EC000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 1800 bcdedit.exe 1892 bcdedit.exe -
Renames multiple (237) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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pid Process 2596 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 1860 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-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft Store = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe" svchost.exe -
Drops desktop.ini file(s) 64 IoCs
description ioc Process File opened for modification C:\$Recycle.Bin\S-1-5-21-3627615824-4061627003-3019543961-1000\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\All Users\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\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\Burn\Burn\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\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\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\All Users\Microsoft\Windows\Start Menu\Programs\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\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\Temporary Internet Files\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\4XCMPANZ\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\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\Music\Sample Music\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\Public\Desktop\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\Libraries\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\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\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\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\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\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\Public\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\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\Administrative Tools\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\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\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\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\FW0P2MZH\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\Content.IE5\2GIU3NG8\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\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\BP3UABCB\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\Roaming\Microsoft\Windows\Recent\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\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\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\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\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\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\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\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\27PKR52P\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\Tablet PC\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\AppData\Local\Microsoft\Feeds Cache\0U93YK0N\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 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2256 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2804 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1860 svchost.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2196 2024-05-28_f43183982e1e945e6b4016ef17878334_destroyer_wannacry.exe 2196 2024-05-28_f43183982e1e945e6b4016ef17878334_destroyer_wannacry.exe 1860 svchost.exe 1860 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2196 2024-05-28_f43183982e1e945e6b4016ef17878334_destroyer_wannacry.exe Token: SeDebugPrivilege 1860 svchost.exe Token: SeBackupPrivilege 2632 vssvc.exe Token: SeRestorePrivilege 2632 vssvc.exe Token: SeAuditPrivilege 2632 vssvc.exe Token: SeIncreaseQuotaPrivilege 2436 WMIC.exe Token: SeSecurityPrivilege 2436 WMIC.exe Token: SeTakeOwnershipPrivilege 2436 WMIC.exe Token: SeLoadDriverPrivilege 2436 WMIC.exe Token: SeSystemProfilePrivilege 2436 WMIC.exe Token: SeSystemtimePrivilege 2436 WMIC.exe Token: SeProfSingleProcessPrivilege 2436 WMIC.exe Token: SeIncBasePriorityPrivilege 2436 WMIC.exe Token: SeCreatePagefilePrivilege 2436 WMIC.exe Token: SeBackupPrivilege 2436 WMIC.exe Token: SeRestorePrivilege 2436 WMIC.exe Token: SeShutdownPrivilege 2436 WMIC.exe Token: SeDebugPrivilege 2436 WMIC.exe Token: SeSystemEnvironmentPrivilege 2436 WMIC.exe Token: SeRemoteShutdownPrivilege 2436 WMIC.exe Token: SeUndockPrivilege 2436 WMIC.exe Token: SeManageVolumePrivilege 2436 WMIC.exe Token: 33 2436 WMIC.exe Token: 34 2436 WMIC.exe Token: 35 2436 WMIC.exe Token: SeIncreaseQuotaPrivilege 2436 WMIC.exe Token: SeSecurityPrivilege 2436 WMIC.exe Token: SeTakeOwnershipPrivilege 2436 WMIC.exe Token: SeLoadDriverPrivilege 2436 WMIC.exe Token: SeSystemProfilePrivilege 2436 WMIC.exe Token: SeSystemtimePrivilege 2436 WMIC.exe Token: SeProfSingleProcessPrivilege 2436 WMIC.exe Token: SeIncBasePriorityPrivilege 2436 WMIC.exe Token: SeCreatePagefilePrivilege 2436 WMIC.exe Token: SeBackupPrivilege 2436 WMIC.exe Token: SeRestorePrivilege 2436 WMIC.exe Token: SeShutdownPrivilege 2436 WMIC.exe Token: SeDebugPrivilege 2436 WMIC.exe Token: SeSystemEnvironmentPrivilege 2436 WMIC.exe Token: SeRemoteShutdownPrivilege 2436 WMIC.exe Token: SeUndockPrivilege 2436 WMIC.exe Token: SeManageVolumePrivilege 2436 WMIC.exe Token: 33 2436 WMIC.exe Token: 34 2436 WMIC.exe Token: 35 2436 WMIC.exe Token: SeBackupPrivilege 1196 wbengine.exe Token: SeRestorePrivilege 1196 wbengine.exe Token: SeSecurityPrivilege 1196 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2196 wrote to memory of 1860 2196 2024-05-28_f43183982e1e945e6b4016ef17878334_destroyer_wannacry.exe 28 PID 2196 wrote to memory of 1860 2196 2024-05-28_f43183982e1e945e6b4016ef17878334_destroyer_wannacry.exe 28 PID 2196 wrote to memory of 1860 2196 2024-05-28_f43183982e1e945e6b4016ef17878334_destroyer_wannacry.exe 28 PID 1860 wrote to memory of 2124 1860 svchost.exe 29 PID 1860 wrote to memory of 2124 1860 svchost.exe 29 PID 1860 wrote to memory of 2124 1860 svchost.exe 29 PID 2124 wrote to memory of 2256 2124 cmd.exe 31 PID 2124 wrote to memory of 2256 2124 cmd.exe 31 PID 2124 wrote to memory of 2256 2124 cmd.exe 31 PID 2124 wrote to memory of 2436 2124 cmd.exe 34 PID 2124 wrote to memory of 2436 2124 cmd.exe 34 PID 2124 wrote to memory of 2436 2124 cmd.exe 34 PID 1860 wrote to memory of 1292 1860 svchost.exe 36 PID 1860 wrote to memory of 1292 1860 svchost.exe 36 PID 1860 wrote to memory of 1292 1860 svchost.exe 36 PID 1292 wrote to memory of 1800 1292 cmd.exe 38 PID 1292 wrote to memory of 1800 1292 cmd.exe 38 PID 1292 wrote to memory of 1800 1292 cmd.exe 38 PID 1292 wrote to memory of 1892 1292 cmd.exe 39 PID 1292 wrote to memory of 1892 1292 cmd.exe 39 PID 1292 wrote to memory of 1892 1292 cmd.exe 39 PID 1860 wrote to memory of 1768 1860 svchost.exe 40 PID 1860 wrote to memory of 1768 1860 svchost.exe 40 PID 1860 wrote to memory of 1768 1860 svchost.exe 40 PID 1768 wrote to memory of 2596 1768 cmd.exe 42 PID 1768 wrote to memory of 2596 1768 cmd.exe 42 PID 1768 wrote to memory of 2596 1768 cmd.exe 42 PID 1860 wrote to memory of 2804 1860 svchost.exe 48 PID 1860 wrote to memory of 2804 1860 svchost.exe 48 PID 1860 wrote to memory of 2804 1860 svchost.exe 48 -
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\2024-05-28_f43183982e1e945e6b4016ef17878334_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-28_f43183982e1e945e6b4016ef17878334_destroyer_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2196 -
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:1860 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2124 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2256
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2436
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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:1292 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1800
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:1892
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1768 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2596
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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:2804
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2632
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1196
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2608
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:1180
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740
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Filesize
89KB
MD5f43183982e1e945e6b4016ef17878334
SHA14601ee37490cefd2fd1d4ecd3fb7ef1624b80300
SHA2565af421300e6483ba025d74e6d6d3c62d4baa99675bda232ca2817820962574ae
SHA5120a13c0fdb0dea8b453c4d4f77926bf2e7d3bb01040fbc95a7897054f9b0bdc738234ee76c99a3d76eeb37fc5d3b6d4fdb50c3dfbde972ebd9f877a535b058130