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
19/03/2025, 21:30
Behavioral task
behavioral1
Sample
2025-03-19_41e82de1b54f92bac9808648df59b682_destroyer_wannacry.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2025-03-19_41e82de1b54f92bac9808648df59b682_destroyer_wannacry.exe
Resource
win10v2004-20250314-en
General
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Target
2025-03-19_41e82de1b54f92bac9808648df59b682_destroyer_wannacry.exe
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Size
37KB
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MD5
41e82de1b54f92bac9808648df59b682
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SHA1
bde789fafbb17afcde0d05737813d50b6c2ffcb6
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SHA256
c24966cdb4123eeba8283d8b0ab374520d76f15f7f1b4e81244470246f15c652
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SHA512
36ee32ae1b30047c40cb1fe288ec164d78ad777f587efcf5c4a5796632e13d59fbc0651493f08dea2784edcf964ddd95512403a01c471db18b9a5b7507d76393
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SSDEEP
768:Vu8xtCdrEx4gc9BB7X9HEzqi78yCtJbDxDz:Vu8xaAxnc9BdlKW
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad\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/2312-1-0x0000000000980000-0x0000000000990000-memory.dmp family_chaos behavioral1/files/0x000b000000012259-4.dat family_chaos behavioral1/memory/2872-7-0x00000000013C0000-0x00000000013D0000-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 1896 bcdedit.exe 2144 bcdedit.exe -
pid Process 476 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\read_it.txt svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url 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 2872 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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Drops desktop.ini file(s) 64 IoCs
description ioc Process 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\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\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\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\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\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\VSUVY3HP\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\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\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\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\Pictures\Sample Pictures\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\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\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\SendTo\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\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\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\U9KKHJMH\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\Documents\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\Games\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\FP29B0EC\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\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\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\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\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\WK3MU41S\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\Recent\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\Public\Music\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\Windows PowerShell\desktop.ini svchost.exe File opened for modification C:\Users\Public\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3533259084-2542256011-65585152-1000\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\Favorites\Links for United States\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\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\Public\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\Admin\Downloads\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\Recorded TV\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\INNMDE1C\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\L1J27TKW\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\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\B8BOMT1Q\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\hne4zswxo.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 2900 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2060 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2872 svchost.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 2312 2025-03-19_41e82de1b54f92bac9808648df59b682_destroyer_wannacry.exe 2312 2025-03-19_41e82de1b54f92bac9808648df59b682_destroyer_wannacry.exe 2312 2025-03-19_41e82de1b54f92bac9808648df59b682_destroyer_wannacry.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2312 2025-03-19_41e82de1b54f92bac9808648df59b682_destroyer_wannacry.exe Token: SeDebugPrivilege 2872 svchost.exe Token: SeBackupPrivilege 2976 vssvc.exe Token: SeRestorePrivilege 2976 vssvc.exe Token: SeAuditPrivilege 2976 vssvc.exe Token: SeIncreaseQuotaPrivilege 1944 WMIC.exe Token: SeSecurityPrivilege 1944 WMIC.exe Token: SeTakeOwnershipPrivilege 1944 WMIC.exe Token: SeLoadDriverPrivilege 1944 WMIC.exe Token: SeSystemProfilePrivilege 1944 WMIC.exe Token: SeSystemtimePrivilege 1944 WMIC.exe Token: SeProfSingleProcessPrivilege 1944 WMIC.exe Token: SeIncBasePriorityPrivilege 1944 WMIC.exe Token: SeCreatePagefilePrivilege 1944 WMIC.exe Token: SeBackupPrivilege 1944 WMIC.exe Token: SeRestorePrivilege 1944 WMIC.exe Token: SeShutdownPrivilege 1944 WMIC.exe Token: SeDebugPrivilege 1944 WMIC.exe Token: SeSystemEnvironmentPrivilege 1944 WMIC.exe Token: SeRemoteShutdownPrivilege 1944 WMIC.exe Token: SeUndockPrivilege 1944 WMIC.exe Token: SeManageVolumePrivilege 1944 WMIC.exe Token: 33 1944 WMIC.exe Token: 34 1944 WMIC.exe Token: 35 1944 WMIC.exe Token: SeIncreaseQuotaPrivilege 1944 WMIC.exe Token: SeSecurityPrivilege 1944 WMIC.exe Token: SeTakeOwnershipPrivilege 1944 WMIC.exe Token: SeLoadDriverPrivilege 1944 WMIC.exe Token: SeSystemProfilePrivilege 1944 WMIC.exe Token: SeSystemtimePrivilege 1944 WMIC.exe Token: SeProfSingleProcessPrivilege 1944 WMIC.exe Token: SeIncBasePriorityPrivilege 1944 WMIC.exe Token: SeCreatePagefilePrivilege 1944 WMIC.exe Token: SeBackupPrivilege 1944 WMIC.exe Token: SeRestorePrivilege 1944 WMIC.exe Token: SeShutdownPrivilege 1944 WMIC.exe Token: SeDebugPrivilege 1944 WMIC.exe Token: SeSystemEnvironmentPrivilege 1944 WMIC.exe Token: SeRemoteShutdownPrivilege 1944 WMIC.exe Token: SeUndockPrivilege 1944 WMIC.exe Token: SeManageVolumePrivilege 1944 WMIC.exe Token: 33 1944 WMIC.exe Token: 34 1944 WMIC.exe Token: 35 1944 WMIC.exe Token: SeBackupPrivilege 2836 wbengine.exe Token: SeRestorePrivilege 2836 wbengine.exe Token: SeSecurityPrivilege 2836 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2312 wrote to memory of 2872 2312 2025-03-19_41e82de1b54f92bac9808648df59b682_destroyer_wannacry.exe 30 PID 2312 wrote to memory of 2872 2312 2025-03-19_41e82de1b54f92bac9808648df59b682_destroyer_wannacry.exe 30 PID 2312 wrote to memory of 2872 2312 2025-03-19_41e82de1b54f92bac9808648df59b682_destroyer_wannacry.exe 30 PID 2872 wrote to memory of 2740 2872 svchost.exe 31 PID 2872 wrote to memory of 2740 2872 svchost.exe 31 PID 2872 wrote to memory of 2740 2872 svchost.exe 31 PID 2740 wrote to memory of 2900 2740 cmd.exe 33 PID 2740 wrote to memory of 2900 2740 cmd.exe 33 PID 2740 wrote to memory of 2900 2740 cmd.exe 33 PID 2740 wrote to memory of 1944 2740 cmd.exe 36 PID 2740 wrote to memory of 1944 2740 cmd.exe 36 PID 2740 wrote to memory of 1944 2740 cmd.exe 36 PID 2872 wrote to memory of 1080 2872 svchost.exe 38 PID 2872 wrote to memory of 1080 2872 svchost.exe 38 PID 2872 wrote to memory of 1080 2872 svchost.exe 38 PID 1080 wrote to memory of 1896 1080 cmd.exe 40 PID 1080 wrote to memory of 1896 1080 cmd.exe 40 PID 1080 wrote to memory of 1896 1080 cmd.exe 40 PID 1080 wrote to memory of 2144 1080 cmd.exe 41 PID 1080 wrote to memory of 2144 1080 cmd.exe 41 PID 1080 wrote to memory of 2144 1080 cmd.exe 41 PID 2872 wrote to memory of 2572 2872 svchost.exe 42 PID 2872 wrote to memory of 2572 2872 svchost.exe 42 PID 2872 wrote to memory of 2572 2872 svchost.exe 42 PID 2572 wrote to memory of 476 2572 cmd.exe 44 PID 2572 wrote to memory of 476 2572 cmd.exe 44 PID 2572 wrote to memory of 476 2572 cmd.exe 44 PID 2872 wrote to memory of 2060 2872 svchost.exe 49 PID 2872 wrote to memory of 2060 2872 svchost.exe 49 PID 2872 wrote to memory of 2060 2872 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\2025-03-19_41e82de1b54f92bac9808648df59b682_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-19_41e82de1b54f92bac9808648df59b682_destroyer_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2312 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.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:2872 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2740 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2900
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1944
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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:1080 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1896
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2144
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2572 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:476
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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:2060
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2976
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2836
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2152
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:2032
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
964B
MD5243fecaa31ac102c3baca2043e8f64ad
SHA1aa748ed2b5a4bfa408586c445f4606a2f7cf0e97
SHA25648f73a3a28986e2280bc623bf063ddf48260ba767320eb13a312c9a97bdb4a4c
SHA512f39c3491dcebe8be4552e1f1d548a04b3e1c757c8492ffa6e99ac265ef63ca3894d8df90ef06a03bb9d24d99303a30ab35e217bb8f8297b8216876b02848cea6
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0
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Filesize
37KB
MD541e82de1b54f92bac9808648df59b682
SHA1bde789fafbb17afcde0d05737813d50b6c2ffcb6
SHA256c24966cdb4123eeba8283d8b0ab374520d76f15f7f1b4e81244470246f15c652
SHA51236ee32ae1b30047c40cb1fe288ec164d78ad777f587efcf5c4a5796632e13d59fbc0651493f08dea2784edcf964ddd95512403a01c471db18b9a5b7507d76393