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
28-01-2025 15:34
Behavioral task
behavioral1
Sample
2025-01-28_536dab3f0bfdec9cf2df58e34f9ff03e_destroyer_wannacry.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2025-01-28_536dab3f0bfdec9cf2df58e34f9ff03e_destroyer_wannacry.exe
Resource
win10v2004-20241007-en
General
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Target
2025-01-28_536dab3f0bfdec9cf2df58e34f9ff03e_destroyer_wannacry.exe
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Size
26KB
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MD5
536dab3f0bfdec9cf2df58e34f9ff03e
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SHA1
a219102a1ddb45062f8c7c20d2a0f7e871b8dfb9
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SHA256
2184740f645a0d041cbbe71d390a53d92326b65b25c31b770fcd143c635ffac8
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SHA512
424ae2dc0b1f63a2b57293aa452697891052446dba6a63f1118cc40348341e144fdc4160d71b2a689424c49ffcd84a184881b3a0ff6490a032881036083fec7e
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SSDEEP
384:JtWZPzzxAm1vA50rRxJYilMDwXd5el1Oy5o915mb582vY:Q7zxAmMoVYTedAho9mV82w
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/2816-1-0x0000000000260000-0x000000000026C000-memory.dmp family_chaos behavioral1/files/0x0007000000012117-6.dat family_chaos behavioral1/memory/2844-8-0x0000000000350000-0x000000000035C000-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 2316 bcdedit.exe 1368 bcdedit.exe -
pid Process 1980 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 2844 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-1-5-21-2872745919-2748461613-2989606286-1000\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\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\Maintenance\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\D3UCK9EB\desktop.ini svchost.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini svchost.exe File opened for modification C:\Users\Public\Downloads\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\Local\Microsoft\Windows\History\History.IE5\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\Public\Videos\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2872745919-2748461613-2989606286-1000\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\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\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\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\HUSZWRNT\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\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\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Public\Libraries\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\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\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\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\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\All Users\Microsoft\Windows\Ringtones\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\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\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\M1ITRGY5\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\Local\Microsoft\Windows\Burn\Burn\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\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\AppData\Local\Microsoft\Feeds Cache\OIPA882W\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\Public\Videos\Sample Videos\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\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\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\Admin\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\Admin\AppData\Roaming\Microsoft\Windows\Recent\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\Windows\History\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\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\Admin\Downloads\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\Content.IE5\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\8YJ7JBZ2\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\Default\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\F17E26FP\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\TUVLNS83\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\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 2600 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2836 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2844 svchost.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2816 2025-01-28_536dab3f0bfdec9cf2df58e34f9ff03e_destroyer_wannacry.exe 2816 2025-01-28_536dab3f0bfdec9cf2df58e34f9ff03e_destroyer_wannacry.exe 2816 2025-01-28_536dab3f0bfdec9cf2df58e34f9ff03e_destroyer_wannacry.exe 2844 svchost.exe 2844 svchost.exe 2844 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2816 2025-01-28_536dab3f0bfdec9cf2df58e34f9ff03e_destroyer_wannacry.exe Token: SeDebugPrivilege 2844 svchost.exe Token: SeBackupPrivilege 3016 vssvc.exe Token: SeRestorePrivilege 3016 vssvc.exe Token: SeAuditPrivilege 3016 vssvc.exe Token: SeIncreaseQuotaPrivilege 1852 WMIC.exe Token: SeSecurityPrivilege 1852 WMIC.exe Token: SeTakeOwnershipPrivilege 1852 WMIC.exe Token: SeLoadDriverPrivilege 1852 WMIC.exe Token: SeSystemProfilePrivilege 1852 WMIC.exe Token: SeSystemtimePrivilege 1852 WMIC.exe Token: SeProfSingleProcessPrivilege 1852 WMIC.exe Token: SeIncBasePriorityPrivilege 1852 WMIC.exe Token: SeCreatePagefilePrivilege 1852 WMIC.exe Token: SeBackupPrivilege 1852 WMIC.exe Token: SeRestorePrivilege 1852 WMIC.exe Token: SeShutdownPrivilege 1852 WMIC.exe Token: SeDebugPrivilege 1852 WMIC.exe Token: SeSystemEnvironmentPrivilege 1852 WMIC.exe Token: SeRemoteShutdownPrivilege 1852 WMIC.exe Token: SeUndockPrivilege 1852 WMIC.exe Token: SeManageVolumePrivilege 1852 WMIC.exe Token: 33 1852 WMIC.exe Token: 34 1852 WMIC.exe Token: 35 1852 WMIC.exe Token: SeIncreaseQuotaPrivilege 1852 WMIC.exe Token: SeSecurityPrivilege 1852 WMIC.exe Token: SeTakeOwnershipPrivilege 1852 WMIC.exe Token: SeLoadDriverPrivilege 1852 WMIC.exe Token: SeSystemProfilePrivilege 1852 WMIC.exe Token: SeSystemtimePrivilege 1852 WMIC.exe Token: SeProfSingleProcessPrivilege 1852 WMIC.exe Token: SeIncBasePriorityPrivilege 1852 WMIC.exe Token: SeCreatePagefilePrivilege 1852 WMIC.exe Token: SeBackupPrivilege 1852 WMIC.exe Token: SeRestorePrivilege 1852 WMIC.exe Token: SeShutdownPrivilege 1852 WMIC.exe Token: SeDebugPrivilege 1852 WMIC.exe Token: SeSystemEnvironmentPrivilege 1852 WMIC.exe Token: SeRemoteShutdownPrivilege 1852 WMIC.exe Token: SeUndockPrivilege 1852 WMIC.exe Token: SeManageVolumePrivilege 1852 WMIC.exe Token: 33 1852 WMIC.exe Token: 34 1852 WMIC.exe Token: 35 1852 WMIC.exe Token: SeBackupPrivilege 1872 wbengine.exe Token: SeRestorePrivilege 1872 wbengine.exe Token: SeSecurityPrivilege 1872 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2816 wrote to memory of 2844 2816 2025-01-28_536dab3f0bfdec9cf2df58e34f9ff03e_destroyer_wannacry.exe 30 PID 2816 wrote to memory of 2844 2816 2025-01-28_536dab3f0bfdec9cf2df58e34f9ff03e_destroyer_wannacry.exe 30 PID 2816 wrote to memory of 2844 2816 2025-01-28_536dab3f0bfdec9cf2df58e34f9ff03e_destroyer_wannacry.exe 30 PID 2844 wrote to memory of 2528 2844 svchost.exe 31 PID 2844 wrote to memory of 2528 2844 svchost.exe 31 PID 2844 wrote to memory of 2528 2844 svchost.exe 31 PID 2528 wrote to memory of 2600 2528 cmd.exe 33 PID 2528 wrote to memory of 2600 2528 cmd.exe 33 PID 2528 wrote to memory of 2600 2528 cmd.exe 33 PID 2528 wrote to memory of 1852 2528 cmd.exe 36 PID 2528 wrote to memory of 1852 2528 cmd.exe 36 PID 2528 wrote to memory of 1852 2528 cmd.exe 36 PID 2844 wrote to memory of 1192 2844 svchost.exe 38 PID 2844 wrote to memory of 1192 2844 svchost.exe 38 PID 2844 wrote to memory of 1192 2844 svchost.exe 38 PID 1192 wrote to memory of 2316 1192 cmd.exe 40 PID 1192 wrote to memory of 2316 1192 cmd.exe 40 PID 1192 wrote to memory of 2316 1192 cmd.exe 40 PID 1192 wrote to memory of 1368 1192 cmd.exe 41 PID 1192 wrote to memory of 1368 1192 cmd.exe 41 PID 1192 wrote to memory of 1368 1192 cmd.exe 41 PID 2844 wrote to memory of 1448 2844 svchost.exe 42 PID 2844 wrote to memory of 1448 2844 svchost.exe 42 PID 2844 wrote to memory of 1448 2844 svchost.exe 42 PID 1448 wrote to memory of 1980 1448 cmd.exe 44 PID 1448 wrote to memory of 1980 1448 cmd.exe 44 PID 1448 wrote to memory of 1980 1448 cmd.exe 44 PID 2844 wrote to memory of 2836 2844 svchost.exe 48 PID 2844 wrote to memory of 2836 2844 svchost.exe 48 PID 2844 wrote to memory of 2836 2844 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\2025-01-28_536dab3f0bfdec9cf2df58e34f9ff03e_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2025-01-28_536dab3f0bfdec9cf2df58e34f9ff03e_destroyer_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2816 -
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:2844 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2528 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2600
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1852
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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:1192 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2316
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:1368
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1448 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1980
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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:2836
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3016
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1872
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:824
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:2788
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
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
18B
MD5f3b9becc19cabde43912370a1dcb35ed
SHA169fd5a88222aca9970b17eb8bc646704495c6dce
SHA256e45bba3f4c70702ef273e8773afb41338b2976f1dbf85f513b93c3255f38c41c
SHA51296e432259dbbbca5aacb82afa9f94f894ce8ef8c2638c814230bfe69ff72bc70a54ae9a67fe1b19834594123d94c41491e6de338c488fca68a89db4a2b1d1634
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Filesize
26KB
MD5536dab3f0bfdec9cf2df58e34f9ff03e
SHA1a219102a1ddb45062f8c7c20d2a0f7e871b8dfb9
SHA2562184740f645a0d041cbbe71d390a53d92326b65b25c31b770fcd143c635ffac8
SHA512424ae2dc0b1f63a2b57293aa452697891052446dba6a63f1118cc40348341e144fdc4160d71b2a689424c49ffcd84a184881b3a0ff6490a032881036083fec7e
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0