Resubmissions
20-02-2025 09:24
250220-lc7t4s1pft 10Analysis
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max time kernel
22s -
max time network
20s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
20-02-2025 09:24
Behavioral task
behavioral1
Sample
2025-02-20_1dea80c3acd337a732a41b1ef0a655c9_destroyer_wannacry.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2025-02-20_1dea80c3acd337a732a41b1ef0a655c9_destroyer_wannacry.exe
Resource
win10v2004-20250217-en
General
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Target
2025-02-20_1dea80c3acd337a732a41b1ef0a655c9_destroyer_wannacry.exe
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Size
27KB
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MD5
1dea80c3acd337a732a41b1ef0a655c9
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SHA1
0c183db452f00bd5282de8c589b5ca39ff671dd6
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SHA256
a19228e0bf1b1aa215e84f0381b6f4ec16e4dc5831089600678a3d6c2eed0936
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SHA512
f42e8c34379afc24ac9dd3d87b6284571e60932d8dfe6b088cf30dd655416a894ad03e95c63b538d55fb20d082b9a3c0024cd4f8740665e13c8be7eef3070f62
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SSDEEP
384:OtWZPzzxAm1vmSZUoGnpjCG+N/y81lxOy5o91ns3J82v4:T7zxAmXZUoGwG+0Kho9VQ82A
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/2736-1-0x00000000000B0000-0x00000000000BE000-memory.dmp family_chaos behavioral1/files/0x00100000000122f3-6.dat family_chaos behavioral1/memory/2388-8-0x0000000000380000-0x000000000038E000-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 3036 bcdedit.exe 1612 bcdedit.exe -
pid Process 1232 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 2388 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-1-5-21-3692679935-4019334568-335155002-1000\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\Public\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\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\Sample Music\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative 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\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\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\Feeds Cache\4KNYJNXZ\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\Feeds Cache\ADWO43R6\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\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\Recorded TV\Sample Media\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\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\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\Temporary Internet Files\Content.IE5\G0UQMQ1C\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\Windows\Start Menu\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\All Users\Microsoft\Windows\Start Menu\Programs\Startup\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\Internet Explorer\Quick Launch\User Pinned\TaskBar\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\Feeds Cache\1U7Y9BT8\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\All Users\Microsoft\Windows\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\BBWU148F\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\Public\Libraries\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\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\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\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\Downloads\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\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\4TDQSVWU\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3692679935-4019334568-335155002-1000\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\Windows\Temporary Internet Files\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\SEGJVAZC\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\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\Admin\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\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\Contacts\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\Default\AppData\Roaming\Microsoft\Windows\SendTo\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\5O2ZS8DL\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 424 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2404 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 2736 2025-02-20_1dea80c3acd337a732a41b1ef0a655c9_destroyer_wannacry.exe 2388 svchost.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2736 2025-02-20_1dea80c3acd337a732a41b1ef0a655c9_destroyer_wannacry.exe 2736 2025-02-20_1dea80c3acd337a732a41b1ef0a655c9_destroyer_wannacry.exe 2736 2025-02-20_1dea80c3acd337a732a41b1ef0a655c9_destroyer_wannacry.exe 2388 svchost.exe 2388 svchost.exe 2388 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2736 2025-02-20_1dea80c3acd337a732a41b1ef0a655c9_destroyer_wannacry.exe Token: SeDebugPrivilege 2388 svchost.exe Token: SeBackupPrivilege 3064 vssvc.exe Token: SeRestorePrivilege 3064 vssvc.exe Token: SeAuditPrivilege 3064 vssvc.exe Token: SeIncreaseQuotaPrivilege 2552 WMIC.exe Token: SeSecurityPrivilege 2552 WMIC.exe Token: SeTakeOwnershipPrivilege 2552 WMIC.exe Token: SeLoadDriverPrivilege 2552 WMIC.exe Token: SeSystemProfilePrivilege 2552 WMIC.exe Token: SeSystemtimePrivilege 2552 WMIC.exe Token: SeProfSingleProcessPrivilege 2552 WMIC.exe Token: SeIncBasePriorityPrivilege 2552 WMIC.exe Token: SeCreatePagefilePrivilege 2552 WMIC.exe Token: SeBackupPrivilege 2552 WMIC.exe Token: SeRestorePrivilege 2552 WMIC.exe Token: SeShutdownPrivilege 2552 WMIC.exe Token: SeDebugPrivilege 2552 WMIC.exe Token: SeSystemEnvironmentPrivilege 2552 WMIC.exe Token: SeRemoteShutdownPrivilege 2552 WMIC.exe Token: SeUndockPrivilege 2552 WMIC.exe Token: SeManageVolumePrivilege 2552 WMIC.exe Token: 33 2552 WMIC.exe Token: 34 2552 WMIC.exe Token: 35 2552 WMIC.exe Token: SeIncreaseQuotaPrivilege 2552 WMIC.exe Token: SeSecurityPrivilege 2552 WMIC.exe Token: SeTakeOwnershipPrivilege 2552 WMIC.exe Token: SeLoadDriverPrivilege 2552 WMIC.exe Token: SeSystemProfilePrivilege 2552 WMIC.exe Token: SeSystemtimePrivilege 2552 WMIC.exe Token: SeProfSingleProcessPrivilege 2552 WMIC.exe Token: SeIncBasePriorityPrivilege 2552 WMIC.exe Token: SeCreatePagefilePrivilege 2552 WMIC.exe Token: SeBackupPrivilege 2552 WMIC.exe Token: SeRestorePrivilege 2552 WMIC.exe Token: SeShutdownPrivilege 2552 WMIC.exe Token: SeDebugPrivilege 2552 WMIC.exe Token: SeSystemEnvironmentPrivilege 2552 WMIC.exe Token: SeRemoteShutdownPrivilege 2552 WMIC.exe Token: SeUndockPrivilege 2552 WMIC.exe Token: SeManageVolumePrivilege 2552 WMIC.exe Token: 33 2552 WMIC.exe Token: 34 2552 WMIC.exe Token: 35 2552 WMIC.exe Token: SeBackupPrivilege 336 wbengine.exe Token: SeRestorePrivilege 336 wbengine.exe Token: SeSecurityPrivilege 336 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2736 wrote to memory of 2388 2736 2025-02-20_1dea80c3acd337a732a41b1ef0a655c9_destroyer_wannacry.exe 30 PID 2736 wrote to memory of 2388 2736 2025-02-20_1dea80c3acd337a732a41b1ef0a655c9_destroyer_wannacry.exe 30 PID 2736 wrote to memory of 2388 2736 2025-02-20_1dea80c3acd337a732a41b1ef0a655c9_destroyer_wannacry.exe 30 PID 2388 wrote to memory of 2920 2388 svchost.exe 31 PID 2388 wrote to memory of 2920 2388 svchost.exe 31 PID 2388 wrote to memory of 2920 2388 svchost.exe 31 PID 2920 wrote to memory of 424 2920 cmd.exe 33 PID 2920 wrote to memory of 424 2920 cmd.exe 33 PID 2920 wrote to memory of 424 2920 cmd.exe 33 PID 2920 wrote to memory of 2552 2920 cmd.exe 36 PID 2920 wrote to memory of 2552 2920 cmd.exe 36 PID 2920 wrote to memory of 2552 2920 cmd.exe 36 PID 2388 wrote to memory of 2968 2388 svchost.exe 38 PID 2388 wrote to memory of 2968 2388 svchost.exe 38 PID 2388 wrote to memory of 2968 2388 svchost.exe 38 PID 2968 wrote to memory of 3036 2968 cmd.exe 40 PID 2968 wrote to memory of 3036 2968 cmd.exe 40 PID 2968 wrote to memory of 3036 2968 cmd.exe 40 PID 2968 wrote to memory of 1612 2968 cmd.exe 41 PID 2968 wrote to memory of 1612 2968 cmd.exe 41 PID 2968 wrote to memory of 1612 2968 cmd.exe 41 PID 2388 wrote to memory of 1744 2388 svchost.exe 42 PID 2388 wrote to memory of 1744 2388 svchost.exe 42 PID 2388 wrote to memory of 1744 2388 svchost.exe 42 PID 1744 wrote to memory of 1232 1744 cmd.exe 44 PID 1744 wrote to memory of 1232 1744 cmd.exe 44 PID 1744 wrote to memory of 1232 1744 cmd.exe 44 PID 2388 wrote to memory of 2404 2388 svchost.exe 49 PID 2388 wrote to memory of 2404 2388 svchost.exe 49 PID 2388 wrote to memory of 2404 2388 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\2025-02-20_1dea80c3acd337a732a41b1ef0a655c9_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2025-02-20_1dea80c3acd337a732a41b1ef0a655c9_destroyer_wannacry.exe"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2736 -
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:2388 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2920 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:424
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2552
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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:2968 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:3036
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:1612
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1744 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1232
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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:2404
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3064
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:336
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2252
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:2120
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
384B
MD54527a1a6c828a73f063e103e63d697cd
SHA126c8f133fe0b6d033aac19a901e9198d0ff18352
SHA25692eccda02248ea9ac84249ca833268534d135e99c4ad33f0e12c930a8c650b59
SHA5127267a891748dc00453c2efa96d28ad4a3f860298cddc25ba8a765322db57cdf141b572a97d2e8bdb9442cae77e5259bebf5f8471210d54c645037a3d28722f4a
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Filesize
27KB
MD51dea80c3acd337a732a41b1ef0a655c9
SHA10c183db452f00bd5282de8c589b5ca39ff671dd6
SHA256a19228e0bf1b1aa215e84f0381b6f4ec16e4dc5831089600678a3d6c2eed0936
SHA512f42e8c34379afc24ac9dd3d87b6284571e60932d8dfe6b088cf30dd655416a894ad03e95c63b538d55fb20d082b9a3c0024cd4f8740665e13c8be7eef3070f62
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0