Analysis
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max time kernel
145s -
max time network
138s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
01/12/2022, 22:51
Static task
static1
Behavioral task
behavioral1
Sample
743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe
Resource
win7-20220812-en
General
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Target
743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe
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Size
64KB
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MD5
a42838fc524b25bd1a4a0d5cc97d4680
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SHA1
ca45a112cd0c89a4f2e5ac2e8eba557ad596ad0a
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SHA256
743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee
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SHA512
109c3b4a0b6632184a1bc8d88b5959fc435ab7cbd140f3964cd4280c239bb46c3de3ce8c007012a2200d220453437cb6d7142de67d8bd1a1e51f043c2f46eedc
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SSDEEP
1536:VHHIcz+j0W2QA5v974JyZuCWPcJzjX6lYd:VIi+jV2n7WyZuCWiq6d
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 1464 GrillScandal.exe 1332 GrillScandal.exe -
Loads dropped DLL 6 IoCs
pid Process 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 1332 GrillScandal.exe 1464 GrillScandal.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe -
Installs/modifies Browser Helper Object 2 TTPs 1 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{F4BAEFBE-7CF3-0EA8-3E22-080C5180AC1F} regsvr32.exe -
Drops file in Program Files directory 4 IoCs
description ioc Process File created C:\Program Files\HarridanTaper\KnockerLevitate.exe GrillScandal.exe File created C:\Program Files\KnockerHarridan\FlexPageant.exe GrillScandal.exe File opened for modification C:\Program Files\HarridanTaper\KnockerLevitate.exe GrillScandal.exe File opened for modification C:\Program Files\KnockerHarridan\FlexPageant.exe GrillScandal.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\ZAYUOZBIDUJF.dll 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 46 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4BAEFBE-7CF3-0EA8-3E22-080C5180AC1F}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{11D9AE74-3FC1-41D6-911B-F5F503BBD8FE}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{11D9AE74-3FC1-41D6-911B-F5F503BBD8FE} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xunlei regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xunlei\CurVer\ = "Thunder.xunlei.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{05D67BE6-2A57-DB9A-2C0A-BF2753C5CC9F}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{11D9AE74-3FC1-41D6-911B-F5F503BBD8FE}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{11D9AE74-3FC1-41D6-911B-F5F503BBD8FE}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xunlei.1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{05D67BE6-2A57-DB9A-2C0A-BF2753C5CC9F}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{11D9AE74-3FC1-41D6-911B-F5F503BBD8FE}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{11D9AE74-3FC1-41D6-911B-F5F503BBD8FE}\ = "Ixunlei" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{11D9AE74-3FC1-41D6-911B-F5F503BBD8FE}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xunlei\CLSID\ = "{F4BAEFBE-7CF3-0EA8-3E22-080C5180AC1F}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4BAEFBE-7CF3-0EA8-3E22-080C5180AC1F}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{11D9AE74-3FC1-41D6-911B-F5F503BBD8FE}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{11D9AE74-3FC1-41D6-911B-F5F503BBD8FE}\TypeLib\ = "{05D67BE6-2A57-DB9A-2C0A-BF2753C5CC9F}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{05D67BE6-2A57-DB9A-2C0A-BF2753C5CC9F}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{11D9AE74-3FC1-41D6-911B-F5F503BBD8FE}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4BAEFBE-7CF3-0EA8-3E22-080C5180AC1F}\ = "xunlei Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{05D67BE6-2A57-DB9A-2C0A-BF2753C5CC9F}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{11D9AE74-3FC1-41D6-911B-F5F503BBD8FE} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{11D9AE74-3FC1-41D6-911B-F5F503BBD8FE}\ = "Ixunlei" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xunlei.1\ = "xunlei Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xunlei.1\CLSID\ = "{F4BAEFBE-7CF3-0EA8-3E22-080C5180AC1F}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4BAEFBE-7CF3-0EA8-3E22-080C5180AC1F}\ProgID\ = "Thunder.xunlei.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4BAEFBE-7CF3-0EA8-3E22-080C5180AC1F}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{11D9AE74-3FC1-41D6-911B-F5F503BBD8FE}\TypeLib\ = "{05D67BE6-2A57-DB9A-2C0A-BF2753C5CC9F}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xunlei.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xunlei\ = "xunlei Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4BAEFBE-7CF3-0EA8-3E22-080C5180AC1F}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4BAEFBE-7CF3-0EA8-3E22-080C5180AC1F}\VersionIndependentProgID\ = "Thunder.xunlei" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4BAEFBE-7CF3-0EA8-3E22-080C5180AC1F}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4BAEFBE-7CF3-0EA8-3E22-080C5180AC1F}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{05D67BE6-2A57-DB9A-2C0A-BF2753C5CC9F}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{05D67BE6-2A57-DB9A-2C0A-BF2753C5CC9F}\1.0\0\win32\ = "C:\\Windows\\ZAYUOZBIDUJF.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xunlei\CurVer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4BAEFBE-7CF3-0EA8-3E22-080C5180AC1F} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{05D67BE6-2A57-DB9A-2C0A-BF2753C5CC9F}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4BAEFBE-7CF3-0EA8-3E22-080C5180AC1F}\TypeLib\ = "{05D67BE6-2A57-DB9A-2C0A-BF2753C5CC9F}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{05D67BE6-2A57-DB9A-2C0A-BF2753C5CC9F} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{05D67BE6-2A57-DB9A-2C0A-BF2753C5CC9F}\1.0\ = "Thunder 1.0 Type Library" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{05D67BE6-2A57-DB9A-2C0A-BF2753C5CC9F}\1.0\HELPDIR\ = "C:\\Windows" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{11D9AE74-3FC1-41D6-911B-F5F503BBD8FE}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xunlei\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F4BAEFBE-7CF3-0EA8-3E22-080C5180AC1F}\InprocServer32\ = "C:\\Windows\\ZAYUOZBIDUJF.dll" regsvr32.exe -
Suspicious use of SetWindowsHookEx 9 IoCs
pid Process 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 1464 GrillScandal.exe 1464 GrillScandal.exe 1332 GrillScandal.exe 1332 GrillScandal.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 1812 wrote to memory of 932 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 28 PID 1812 wrote to memory of 932 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 28 PID 1812 wrote to memory of 932 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 28 PID 1812 wrote to memory of 932 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 28 PID 1812 wrote to memory of 932 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 28 PID 1812 wrote to memory of 932 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 28 PID 1812 wrote to memory of 932 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 28 PID 1812 wrote to memory of 1464 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 29 PID 1812 wrote to memory of 1464 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 29 PID 1812 wrote to memory of 1464 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 29 PID 1812 wrote to memory of 1464 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 29 PID 1812 wrote to memory of 1332 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 30 PID 1812 wrote to memory of 1332 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 30 PID 1812 wrote to memory of 1332 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 30 PID 1812 wrote to memory of 1332 1812 743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe"C:\Users\Admin\AppData\Local\Temp\743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee.exe"1⤵
- Loads dropped DLL
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1812 -
C:\Windows\SysWOW64\regsvr32.exeregsvr32.exe /s "C:\Windows\ZAYUOZBIDUJF.dll"2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:932
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C:\Users\Admin\AppData\Local\Temp\GrillScandal.exe"C:\Users\Admin\AppData\Local\Temp\GrillScandal.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
PID:1464
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C:\Users\Admin\AppData\Local\Temp\GrillScandal.exeC:\Users\Admin\AppData\Local\Temp\GrillScandal.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
PID:1332
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
28KB
MD56697555ead62e6b9fb71a0ffb6d62992
SHA155b57b52fe0d4af8716db57a98ab011b1dbe4181
SHA256683a7e3bc4e63ba70bf88c23ae895109d19fc02c9d084ddd759a5569b56d2cd6
SHA51236b7c24cbc5cef1ea6cca65c2054e3baae7096932bbb2caa4857d4f324407fe5a92e610d7baf979dfa881d82f9c99c74037b774967cd5d31af5a120bd9eefdf8
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Filesize
28KB
MD56697555ead62e6b9fb71a0ffb6d62992
SHA155b57b52fe0d4af8716db57a98ab011b1dbe4181
SHA256683a7e3bc4e63ba70bf88c23ae895109d19fc02c9d084ddd759a5569b56d2cd6
SHA51236b7c24cbc5cef1ea6cca65c2054e3baae7096932bbb2caa4857d4f324407fe5a92e610d7baf979dfa881d82f9c99c74037b774967cd5d31af5a120bd9eefdf8
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Filesize
96KB
MD55e96c83c664b3ff94439f8e452f25cf4
SHA1c3c74c9a2008d588b628dcf289415a4664b9f54d
SHA2561f9ae11065e3834d0990f7eeed25904b0f5663d1033411bd8257edaa3c8e189d
SHA5127206dcdc337288ab1f6fb4f508a729c198e970abe5f26b8f9c74cffef9ef79d96f4fcc57b1f1b6886ec388ff513e6be1d2584824ef232cd0fb47ce73d7564bfa
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Filesize
64KB
MD5a42838fc524b25bd1a4a0d5cc97d4680
SHA1ca45a112cd0c89a4f2e5ac2e8eba557ad596ad0a
SHA256743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee
SHA512109c3b4a0b6632184a1bc8d88b5959fc435ab7cbd140f3964cd4280c239bb46c3de3ce8c007012a2200d220453437cb6d7142de67d8bd1a1e51f043c2f46eedc
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Filesize
64KB
MD5a42838fc524b25bd1a4a0d5cc97d4680
SHA1ca45a112cd0c89a4f2e5ac2e8eba557ad596ad0a
SHA256743ce99e51d01a9502c43046f9cca58e902be9c6cab5cf4cb0f56586d5c386ee
SHA512109c3b4a0b6632184a1bc8d88b5959fc435ab7cbd140f3964cd4280c239bb46c3de3ce8c007012a2200d220453437cb6d7142de67d8bd1a1e51f043c2f46eedc
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Filesize
28KB
MD56697555ead62e6b9fb71a0ffb6d62992
SHA155b57b52fe0d4af8716db57a98ab011b1dbe4181
SHA256683a7e3bc4e63ba70bf88c23ae895109d19fc02c9d084ddd759a5569b56d2cd6
SHA51236b7c24cbc5cef1ea6cca65c2054e3baae7096932bbb2caa4857d4f324407fe5a92e610d7baf979dfa881d82f9c99c74037b774967cd5d31af5a120bd9eefdf8
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Filesize
28KB
MD56697555ead62e6b9fb71a0ffb6d62992
SHA155b57b52fe0d4af8716db57a98ab011b1dbe4181
SHA256683a7e3bc4e63ba70bf88c23ae895109d19fc02c9d084ddd759a5569b56d2cd6
SHA51236b7c24cbc5cef1ea6cca65c2054e3baae7096932bbb2caa4857d4f324407fe5a92e610d7baf979dfa881d82f9c99c74037b774967cd5d31af5a120bd9eefdf8
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Filesize
28KB
MD56697555ead62e6b9fb71a0ffb6d62992
SHA155b57b52fe0d4af8716db57a98ab011b1dbe4181
SHA256683a7e3bc4e63ba70bf88c23ae895109d19fc02c9d084ddd759a5569b56d2cd6
SHA51236b7c24cbc5cef1ea6cca65c2054e3baae7096932bbb2caa4857d4f324407fe5a92e610d7baf979dfa881d82f9c99c74037b774967cd5d31af5a120bd9eefdf8
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Filesize
28KB
MD56697555ead62e6b9fb71a0ffb6d62992
SHA155b57b52fe0d4af8716db57a98ab011b1dbe4181
SHA256683a7e3bc4e63ba70bf88c23ae895109d19fc02c9d084ddd759a5569b56d2cd6
SHA51236b7c24cbc5cef1ea6cca65c2054e3baae7096932bbb2caa4857d4f324407fe5a92e610d7baf979dfa881d82f9c99c74037b774967cd5d31af5a120bd9eefdf8