Analysis
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max time kernel
122s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
21-02-2025 11:22
Behavioral task
behavioral1
Sample
2025-02-21_e9cd337f5a8c2e65b8ac6e27593af184_destroyer_wannacry.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2025-02-21_e9cd337f5a8c2e65b8ac6e27593af184_destroyer_wannacry.exe
Resource
win10v2004-20250217-en
General
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Target
2025-02-21_e9cd337f5a8c2e65b8ac6e27593af184_destroyer_wannacry.exe
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Size
59KB
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MD5
e9cd337f5a8c2e65b8ac6e27593af184
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SHA1
f28caa61be74d34334837447cb727559ffc2aeb9
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SHA256
1eb024838ac5cc347fc5e318e98f69c5866dc102669af8d7ba07b87895e61f64
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SHA512
18fc6c8152dc9e896e8d44ceb5601ca2844c07d3809b54f017f3279b6282e79e1e93098ce83434742e54fde148f3bdc2d167566de22f2a456f32809445cae1ae
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SSDEEP
1536:tF2AxIc9SA7oC2IFNR7jwYkh2sdN3GMyry:6QIc9SZC2Iv9jwYU/3GM
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/2120-1-0x0000000001080000-0x0000000001096000-memory.dmp family_chaos behavioral1/memory/988-8-0x0000000000A40000-0x0000000000A56000-memory.dmp family_chaos behavioral1/files/0x0009000000016de4-7.dat 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 1284 bcdedit.exe 1868 bcdedit.exe -
Renames multiple (190) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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pid Process 812 wbadmin.exe -
Disables Task Manager via registry modification
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Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\update.url update.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini update.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt update.exe -
Executes dropped EXE 1 IoCs
pid Process 988 update.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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Drops desktop.ini file(s) 64 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini update.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini update.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Games\Desktop.ini update.exe File opened for modification C:\Users\Public\Documents\desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini update.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini update.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\C1JHBK4W\desktop.ini update.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini update.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini update.exe File opened for modification C:\Users\Admin\Searches\desktop.ini update.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-1488793075-819845221-1497111674-1000\desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\N5RJMVSE\desktop.ini update.exe File opened for modification C:\Users\Admin\Links\desktop.ini update.exe File opened for modification C:\Users\Admin\Music\desktop.ini update.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini update.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini update.exe File opened for modification C:\Users\Public\Desktop\desktop.ini update.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini update.exe File opened for modification C:\Users\Public\Libraries\desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini update.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini update.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini update.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\desktop.ini update.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Tablet PC\Desktop.ini update.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini update.exe File opened for modification C:\Users\Public\desktop.ini update.exe File opened for modification C:\Users\Public\Music\desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\691RDNCS\desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\History.IE5\desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\PG1T8SOQ\desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini update.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini update.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini update.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Ringtones\desktop.ini update.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\desktop.ini update.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini update.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini update.exe File opened for modification C:\Users\Public\Videos\desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini update.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini update.exe File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\I618Z2Y3\desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\ORIYJR4N\desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\Desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\CW1M20CU\desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini update.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\desktop.ini update.exe File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini update.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini update.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini update.exe File opened for modification C:\Users\Public\Downloads\desktop.ini update.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini update.exe File opened for modification C:\Users\Admin\Documents\desktop.ini update.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini update.exe File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini update.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ohvqm2172.jpg" update.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 2760 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2596 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 988 update.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 2120 2025-02-21_e9cd337f5a8c2e65b8ac6e27593af184_destroyer_wannacry.exe 2120 2025-02-21_e9cd337f5a8c2e65b8ac6e27593af184_destroyer_wannacry.exe 2120 2025-02-21_e9cd337f5a8c2e65b8ac6e27593af184_destroyer_wannacry.exe 988 update.exe 988 update.exe 988 update.exe 988 update.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2120 2025-02-21_e9cd337f5a8c2e65b8ac6e27593af184_destroyer_wannacry.exe Token: SeDebugPrivilege 988 update.exe Token: SeBackupPrivilege 2852 vssvc.exe Token: SeRestorePrivilege 2852 vssvc.exe Token: SeAuditPrivilege 2852 vssvc.exe Token: SeIncreaseQuotaPrivilege 2632 WMIC.exe Token: SeSecurityPrivilege 2632 WMIC.exe Token: SeTakeOwnershipPrivilege 2632 WMIC.exe Token: SeLoadDriverPrivilege 2632 WMIC.exe Token: SeSystemProfilePrivilege 2632 WMIC.exe Token: SeSystemtimePrivilege 2632 WMIC.exe Token: SeProfSingleProcessPrivilege 2632 WMIC.exe Token: SeIncBasePriorityPrivilege 2632 WMIC.exe Token: SeCreatePagefilePrivilege 2632 WMIC.exe Token: SeBackupPrivilege 2632 WMIC.exe Token: SeRestorePrivilege 2632 WMIC.exe Token: SeShutdownPrivilege 2632 WMIC.exe Token: SeDebugPrivilege 2632 WMIC.exe Token: SeSystemEnvironmentPrivilege 2632 WMIC.exe Token: SeRemoteShutdownPrivilege 2632 WMIC.exe Token: SeUndockPrivilege 2632 WMIC.exe Token: SeManageVolumePrivilege 2632 WMIC.exe Token: 33 2632 WMIC.exe Token: 34 2632 WMIC.exe Token: 35 2632 WMIC.exe Token: SeIncreaseQuotaPrivilege 2632 WMIC.exe Token: SeSecurityPrivilege 2632 WMIC.exe Token: SeTakeOwnershipPrivilege 2632 WMIC.exe Token: SeLoadDriverPrivilege 2632 WMIC.exe Token: SeSystemProfilePrivilege 2632 WMIC.exe Token: SeSystemtimePrivilege 2632 WMIC.exe Token: SeProfSingleProcessPrivilege 2632 WMIC.exe Token: SeIncBasePriorityPrivilege 2632 WMIC.exe Token: SeCreatePagefilePrivilege 2632 WMIC.exe Token: SeBackupPrivilege 2632 WMIC.exe Token: SeRestorePrivilege 2632 WMIC.exe Token: SeShutdownPrivilege 2632 WMIC.exe Token: SeDebugPrivilege 2632 WMIC.exe Token: SeSystemEnvironmentPrivilege 2632 WMIC.exe Token: SeRemoteShutdownPrivilege 2632 WMIC.exe Token: SeUndockPrivilege 2632 WMIC.exe Token: SeManageVolumePrivilege 2632 WMIC.exe Token: 33 2632 WMIC.exe Token: 34 2632 WMIC.exe Token: 35 2632 WMIC.exe Token: SeBackupPrivilege 1996 wbengine.exe Token: SeRestorePrivilege 1996 wbengine.exe Token: SeSecurityPrivilege 1996 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2120 wrote to memory of 988 2120 2025-02-21_e9cd337f5a8c2e65b8ac6e27593af184_destroyer_wannacry.exe 31 PID 2120 wrote to memory of 988 2120 2025-02-21_e9cd337f5a8c2e65b8ac6e27593af184_destroyer_wannacry.exe 31 PID 2120 wrote to memory of 988 2120 2025-02-21_e9cd337f5a8c2e65b8ac6e27593af184_destroyer_wannacry.exe 31 PID 988 wrote to memory of 2200 988 update.exe 32 PID 988 wrote to memory of 2200 988 update.exe 32 PID 988 wrote to memory of 2200 988 update.exe 32 PID 2200 wrote to memory of 2760 2200 cmd.exe 34 PID 2200 wrote to memory of 2760 2200 cmd.exe 34 PID 2200 wrote to memory of 2760 2200 cmd.exe 34 PID 2200 wrote to memory of 2632 2200 cmd.exe 37 PID 2200 wrote to memory of 2632 2200 cmd.exe 37 PID 2200 wrote to memory of 2632 2200 cmd.exe 37 PID 988 wrote to memory of 3056 988 update.exe 39 PID 988 wrote to memory of 3056 988 update.exe 39 PID 988 wrote to memory of 3056 988 update.exe 39 PID 3056 wrote to memory of 1284 3056 cmd.exe 41 PID 3056 wrote to memory of 1284 3056 cmd.exe 41 PID 3056 wrote to memory of 1284 3056 cmd.exe 41 PID 3056 wrote to memory of 1868 3056 cmd.exe 42 PID 3056 wrote to memory of 1868 3056 cmd.exe 42 PID 3056 wrote to memory of 1868 3056 cmd.exe 42 PID 988 wrote to memory of 1492 988 update.exe 43 PID 988 wrote to memory of 1492 988 update.exe 43 PID 988 wrote to memory of 1492 988 update.exe 43 PID 1492 wrote to memory of 812 1492 cmd.exe 45 PID 1492 wrote to memory of 812 1492 cmd.exe 45 PID 1492 wrote to memory of 812 1492 cmd.exe 45 PID 988 wrote to memory of 2596 988 update.exe 50 PID 988 wrote to memory of 2596 988 update.exe 50 PID 988 wrote to memory of 2596 988 update.exe 50 -
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\2025-02-21_e9cd337f5a8c2e65b8ac6e27593af184_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2025-02-21_e9cd337f5a8c2e65b8ac6e27593af184_destroyer_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2120 -
C:\Users\Admin\AppData\Roaming\update.exe"C:\Users\Admin\AppData\Roaming\update.exe"2⤵
- Drops startup file
- Executes dropped EXE
- 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:988 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2200 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2760
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2632
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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:3056 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1284
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:1868
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1492 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:812
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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:2596
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2852
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1996
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1796
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:1736
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5152ed25c08a2cf8815661d452628c6e4
SHA18ae021ddc75ce3b07c058c24c22d2d170c757cd1
SHA256ef6453462375c4d30e60e51daafb848ba60d6a65683cf8e66be5fd70dadbda75
SHA512b6512f2b3f084b770c66bf852460bdf1c1127d8bf548125f1fbf41171a1402ed7c7908d491281303109c2e053e5fd29dec28d8117443966d2cc6096bbf9469b4
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0
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Filesize
59KB
MD5e9cd337f5a8c2e65b8ac6e27593af184
SHA1f28caa61be74d34334837447cb727559ffc2aeb9
SHA2561eb024838ac5cc347fc5e318e98f69c5866dc102669af8d7ba07b87895e61f64
SHA51218fc6c8152dc9e896e8d44ceb5601ca2844c07d3809b54f017f3279b6282e79e1e93098ce83434742e54fde148f3bdc2d167566de22f2a456f32809445cae1ae