Analysis
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max time kernel
154s -
max time network
192s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
14/10/2022, 14:20
Behavioral task
behavioral1
Sample
7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe
Resource
win10v2004-20220812-en
General
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Target
7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe
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Size
669KB
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MD5
a65e340a616178bceb72e056554ca8d6
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SHA1
00f95a3e9e1ce53e4476c770e61f08c110d3beae
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SHA256
7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152
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SHA512
cd3f6baa05dbd5b8d345c5a7c084eb389ca1b2e9d6cfc212f58742e5a943927dbb4ae8d16f7fe12bee315cc4e3b8ec11916513e2ff0538af6b8848bbbd21e720
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SSDEEP
12288:dQA0FfTcwpBuV2UxqDmuiLZeUaoFi2XZWfGe615HhAZV8DiKD/KeX:Tuf4wTuV2Ux3uIZeUBi2Te6HW7KrKe
Malware Config
Extracted
C:\HOW_TO_RECOVER_DATA.html
Signatures
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MedusaLocker
Ransomware with several variants first seen in September 2019.
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MedusaLocker payload 2 IoCs
resource yara_rule behavioral2/files/0x000a000000022e39-136.dat family_medusalocker behavioral2/files/0x000a000000022e39-137.dat family_medusalocker -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe -
Executes dropped EXE 1 IoCs
pid Process 2736 svhost.exe -
Modifies extensions of user files 11 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File opened for modification C:\Users\Admin\Pictures\StepMeasure.tiff 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File renamed C:\Users\Admin\Pictures\StepMeasure.tiff => C:\Users\Admin\Pictures\StepMeasure.tiff.mlock2 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File renamed C:\Users\Admin\Pictures\SubmitConvert.raw => C:\Users\Admin\Pictures\SubmitConvert.raw.mlock2 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened for modification C:\Users\Admin\Pictures\ConvertFromApprove.tiff 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File renamed C:\Users\Admin\Pictures\ConvertFromApprove.tiff => C:\Users\Admin\Pictures\ConvertFromApprove.tiff.mlock2 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File renamed C:\Users\Admin\Pictures\FindBlock.crw => C:\Users\Admin\Pictures\FindBlock.crw.mlock2 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File renamed C:\Users\Admin\Pictures\FormatRemove.tif => C:\Users\Admin\Pictures\FormatRemove.tif.mlock2 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File renamed C:\Users\Admin\Pictures\ConfirmRename.png => C:\Users\Admin\Pictures\ConfirmRename.png.mlock2 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File renamed C:\Users\Admin\Pictures\MoveReset.png => C:\Users\Admin\Pictures\MoveReset.png.mlock2 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File renamed C:\Users\Admin\Pictures\ResolveCompare.raw => C:\Users\Admin\Pictures\ResolveCompare.raw.mlock2 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File renamed C:\Users\Admin\Pictures\UnlockWrite.png => C:\Users\Admin\Pictures\UnlockWrite.png.mlock2 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.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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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe -
Drops desktop.ini file(s) 1 IoCs
description ioc Process File opened for modification \??\Z:\$RECYCLE.BIN\S-1-5-21-2295526160-1155304984-640977766-1000\desktop.ini 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe -
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\A: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\B: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\F: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\J: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\K: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\Q: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\R: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\Z: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\X: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\Y: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\E: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\I: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\M: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\S: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\T: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\V: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\G: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\H: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\L: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\N: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\O: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\P: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\U: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe File opened (read-only) \??\W: 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe -
Suspicious use of AdjustPrivilegeToken 63 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4820 wmic.exe Token: SeSecurityPrivilege 4820 wmic.exe Token: SeTakeOwnershipPrivilege 4820 wmic.exe Token: SeLoadDriverPrivilege 4820 wmic.exe Token: SeSystemProfilePrivilege 4820 wmic.exe Token: SeSystemtimePrivilege 4820 wmic.exe Token: SeProfSingleProcessPrivilege 4820 wmic.exe Token: SeIncBasePriorityPrivilege 4820 wmic.exe Token: SeCreatePagefilePrivilege 4820 wmic.exe Token: SeBackupPrivilege 4820 wmic.exe Token: SeRestorePrivilege 4820 wmic.exe Token: SeShutdownPrivilege 4820 wmic.exe Token: SeDebugPrivilege 4820 wmic.exe Token: SeSystemEnvironmentPrivilege 4820 wmic.exe Token: SeRemoteShutdownPrivilege 4820 wmic.exe Token: SeUndockPrivilege 4820 wmic.exe Token: SeManageVolumePrivilege 4820 wmic.exe Token: 33 4820 wmic.exe Token: 34 4820 wmic.exe Token: 35 4820 wmic.exe Token: 36 4820 wmic.exe Token: SeIncreaseQuotaPrivilege 3744 wmic.exe Token: SeSecurityPrivilege 3744 wmic.exe Token: SeTakeOwnershipPrivilege 3744 wmic.exe Token: SeLoadDriverPrivilege 3744 wmic.exe Token: SeSystemProfilePrivilege 3744 wmic.exe Token: SeSystemtimePrivilege 3744 wmic.exe Token: SeProfSingleProcessPrivilege 3744 wmic.exe Token: SeIncBasePriorityPrivilege 3744 wmic.exe Token: SeCreatePagefilePrivilege 3744 wmic.exe Token: SeBackupPrivilege 3744 wmic.exe Token: SeRestorePrivilege 3744 wmic.exe Token: SeShutdownPrivilege 3744 wmic.exe Token: SeDebugPrivilege 3744 wmic.exe Token: SeSystemEnvironmentPrivilege 3744 wmic.exe Token: SeRemoteShutdownPrivilege 3744 wmic.exe Token: SeUndockPrivilege 3744 wmic.exe Token: SeManageVolumePrivilege 3744 wmic.exe Token: 33 3744 wmic.exe Token: 34 3744 wmic.exe Token: 35 3744 wmic.exe Token: 36 3744 wmic.exe Token: SeIncreaseQuotaPrivilege 3256 wmic.exe Token: SeSecurityPrivilege 3256 wmic.exe Token: SeTakeOwnershipPrivilege 3256 wmic.exe Token: SeLoadDriverPrivilege 3256 wmic.exe Token: SeSystemProfilePrivilege 3256 wmic.exe Token: SeSystemtimePrivilege 3256 wmic.exe Token: SeProfSingleProcessPrivilege 3256 wmic.exe Token: SeIncBasePriorityPrivilege 3256 wmic.exe Token: SeCreatePagefilePrivilege 3256 wmic.exe Token: SeBackupPrivilege 3256 wmic.exe Token: SeRestorePrivilege 3256 wmic.exe Token: SeShutdownPrivilege 3256 wmic.exe Token: SeDebugPrivilege 3256 wmic.exe Token: SeSystemEnvironmentPrivilege 3256 wmic.exe Token: SeRemoteShutdownPrivilege 3256 wmic.exe Token: SeUndockPrivilege 3256 wmic.exe Token: SeManageVolumePrivilege 3256 wmic.exe Token: 33 3256 wmic.exe Token: 34 3256 wmic.exe Token: 35 3256 wmic.exe Token: 36 3256 wmic.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1944 wrote to memory of 4820 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 84 PID 1944 wrote to memory of 4820 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 84 PID 1944 wrote to memory of 4820 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 84 PID 1944 wrote to memory of 3744 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 86 PID 1944 wrote to memory of 3744 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 86 PID 1944 wrote to memory of 3744 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 86 PID 1944 wrote to memory of 3256 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 88 PID 1944 wrote to memory of 3256 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 88 PID 1944 wrote to memory of 3256 1944 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe 88 -
System policy modification 1 TTPs 3 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1" 7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe"C:\Users\Admin\AppData\Local\Temp\7a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152.exe"1⤵
- UAC bypass
- Modifies extensions of user files
- Checks whether UAC is enabled
- Drops desktop.ini file(s)
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1944 -
C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4820
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C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3744
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C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3256
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C:\Users\Admin\AppData\Roaming\svhost.exeC:\Users\Admin\AppData\Roaming\svhost.exe1⤵
- Executes dropped EXE
PID:2736
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
669KB
MD5a65e340a616178bceb72e056554ca8d6
SHA100f95a3e9e1ce53e4476c770e61f08c110d3beae
SHA2567a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152
SHA512cd3f6baa05dbd5b8d345c5a7c084eb389ca1b2e9d6cfc212f58742e5a943927dbb4ae8d16f7fe12bee315cc4e3b8ec11916513e2ff0538af6b8848bbbd21e720
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Filesize
669KB
MD5a65e340a616178bceb72e056554ca8d6
SHA100f95a3e9e1ce53e4476c770e61f08c110d3beae
SHA2567a073ba748c752fa795254cb4019c282ef03a0283602a43f5481a49d17323152
SHA512cd3f6baa05dbd5b8d345c5a7c084eb389ca1b2e9d6cfc212f58742e5a943927dbb4ae8d16f7fe12bee315cc4e3b8ec11916513e2ff0538af6b8848bbbd21e720