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Analysis
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max time kernel
58s -
max time network
41s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
27/08/2024, 21:32
Static task
static1
Behavioral task
behavioral1
Sample
2819ddc5b45aec8e553a8ba973a5e555d733dc45f38d3566dc2f0d1e7761ac32.docx
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2819ddc5b45aec8e553a8ba973a5e555d733dc45f38d3566dc2f0d1e7761ac32.docx
Resource
win10v2004-20240802-en
General
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Target
2819ddc5b45aec8e553a8ba973a5e555d733dc45f38d3566dc2f0d1e7761ac32.docx
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Size
179KB
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MD5
dddc62fe7387455520e9eb696b4292fd
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SHA1
88f4353640f565178c8e4986d8cea7a03b1d14c4
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SHA256
2819ddc5b45aec8e553a8ba973a5e555d733dc45f38d3566dc2f0d1e7761ac32
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SHA512
e7334d487cd7137a1af8880c31086a9bb59b445ccd91346bc005ce7a5bd0026ab9a2854977463662eab7a148963376245b2917373a890a09ae5898999ebd1661
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SSDEEP
3072:aiY5rj1ATug+mhTZMxjcFQ9csn4qAzYjDp/shKuikycBSRjR/Vx7XUwV5h:w5r/g+qZMpcFSQzYHut4dNHh
Malware Config
Extracted
remcos
AUG 26
sungito2.ddns.net:6509
154.216.19.222:5532
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audio_folder
MicRecords
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
false
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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mouse_option
false
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mutex
Rmc-LXAZN2
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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Detected Nirsoft tools 3 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
resource yara_rule behavioral1/memory/1828-155-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral1/memory/1936-154-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral1/memory/1856-160-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft -
NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral1/memory/1936-154-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral1/memory/1828-155-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
Blocklisted process makes network request 1 IoCs
flow pid Process 8 1256 EQNEDT32.EXE -
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 2024 powershell.exe -
Downloads MZ/PE file
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Abuses OpenXML format to download file from external location
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Executes dropped EXE 6 IoCs
pid Process 2364 sinbless09185.exe 2072 sinbless09185.exe 1400 sinbless09185.exe 1828 sinbless09185.exe 1936 sinbless09185.exe 1856 sinbless09185.exe -
Loads dropped DLL 1 IoCs
pid Process 1256 EQNEDT32.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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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts sinbless09185.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk powershell.exe -
Suspicious use of SetThreadContext 4 IoCs
description pid Process procid_target PID 2364 set thread context of 2072 2364 sinbless09185.exe 36 PID 2072 set thread context of 1828 2072 sinbless09185.exe 39 PID 2072 set thread context of 1936 2072 sinbless09185.exe 40 PID 2072 set thread context of 1856 2072 sinbless09185.exe 41 -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 8 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sinbless09185.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sinbless09185.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sinbless09185.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sinbless09185.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WINWORD.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language EQNEDT32.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sinbless09185.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Office loads VBA resources, possible macro or embedded object present
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Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
pid Process 1256 EQNEDT32.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3024 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 2024 powershell.exe 1828 sinbless09185.exe 1828 sinbless09185.exe -
Suspicious behavior: MapViewOfSection 4 IoCs
pid Process 2072 sinbless09185.exe 2072 sinbless09185.exe 2072 sinbless09185.exe 2072 sinbless09185.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2024 powershell.exe Token: SeDebugPrivilege 1856 sinbless09185.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 3024 WINWORD.EXE 3024 WINWORD.EXE 2072 sinbless09185.exe -
Suspicious use of WriteProcessMemory 44 IoCs
description pid Process procid_target PID 1256 wrote to memory of 2364 1256 EQNEDT32.EXE 32 PID 1256 wrote to memory of 2364 1256 EQNEDT32.EXE 32 PID 1256 wrote to memory of 2364 1256 EQNEDT32.EXE 32 PID 1256 wrote to memory of 2364 1256 EQNEDT32.EXE 32 PID 3024 wrote to memory of 1652 3024 WINWORD.EXE 34 PID 3024 wrote to memory of 1652 3024 WINWORD.EXE 34 PID 3024 wrote to memory of 1652 3024 WINWORD.EXE 34 PID 3024 wrote to memory of 1652 3024 WINWORD.EXE 34 PID 2364 wrote to memory of 2024 2364 sinbless09185.exe 35 PID 2364 wrote to memory of 2024 2364 sinbless09185.exe 35 PID 2364 wrote to memory of 2024 2364 sinbless09185.exe 35 PID 2364 wrote to memory of 2024 2364 sinbless09185.exe 35 PID 2364 wrote to memory of 2072 2364 sinbless09185.exe 36 PID 2364 wrote to memory of 2072 2364 sinbless09185.exe 36 PID 2364 wrote to memory of 2072 2364 sinbless09185.exe 36 PID 2364 wrote to memory of 2072 2364 sinbless09185.exe 36 PID 2364 wrote to memory of 2072 2364 sinbless09185.exe 36 PID 2364 wrote to memory of 2072 2364 sinbless09185.exe 36 PID 2364 wrote to memory of 2072 2364 sinbless09185.exe 36 PID 2364 wrote to memory of 2072 2364 sinbless09185.exe 36 PID 2364 wrote to memory of 2072 2364 sinbless09185.exe 36 PID 2364 wrote to memory of 2072 2364 sinbless09185.exe 36 PID 2364 wrote to memory of 2072 2364 sinbless09185.exe 36 PID 2364 wrote to memory of 2072 2364 sinbless09185.exe 36 PID 2364 wrote to memory of 2072 2364 sinbless09185.exe 36 PID 2072 wrote to memory of 1400 2072 sinbless09185.exe 38 PID 2072 wrote to memory of 1400 2072 sinbless09185.exe 38 PID 2072 wrote to memory of 1400 2072 sinbless09185.exe 38 PID 2072 wrote to memory of 1400 2072 sinbless09185.exe 38 PID 2072 wrote to memory of 1828 2072 sinbless09185.exe 39 PID 2072 wrote to memory of 1828 2072 sinbless09185.exe 39 PID 2072 wrote to memory of 1828 2072 sinbless09185.exe 39 PID 2072 wrote to memory of 1828 2072 sinbless09185.exe 39 PID 2072 wrote to memory of 1828 2072 sinbless09185.exe 39 PID 2072 wrote to memory of 1936 2072 sinbless09185.exe 40 PID 2072 wrote to memory of 1936 2072 sinbless09185.exe 40 PID 2072 wrote to memory of 1936 2072 sinbless09185.exe 40 PID 2072 wrote to memory of 1936 2072 sinbless09185.exe 40 PID 2072 wrote to memory of 1936 2072 sinbless09185.exe 40 PID 2072 wrote to memory of 1856 2072 sinbless09185.exe 41 PID 2072 wrote to memory of 1856 2072 sinbless09185.exe 41 PID 2072 wrote to memory of 1856 2072 sinbless09185.exe 41 PID 2072 wrote to memory of 1856 2072 sinbless09185.exe 41 PID 2072 wrote to memory of 1856 2072 sinbless09185.exe 41
Processes
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C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\2819ddc5b45aec8e553a8ba973a5e555d733dc45f38d3566dc2f0d1e7761ac32.docx"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3024 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:1652
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C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:1256 -
C:\Users\Admin\AppData\Roaming\sinbless09185.exe"C:\Users\Admin\AppData\Roaming\sinbless09185.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2364 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\sinbless09185.exe"3⤵
- Command and Scripting Interpreter: PowerShell
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2024
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C:\Users\Admin\AppData\Roaming\sinbless09185.exe"C:\Users\Admin\AppData\Roaming\sinbless09185.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2072 -
C:\Users\Admin\AppData\Roaming\sinbless09185.exeC:\Users\Admin\AppData\Roaming\sinbless09185.exe /stext "C:\Users\Admin\AppData\Local\Temp\dlwifwadmgr"4⤵
- Executes dropped EXE
PID:1400
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C:\Users\Admin\AppData\Roaming\sinbless09185.exeC:\Users\Admin\AppData\Roaming\sinbless09185.exe /stext "C:\Users\Admin\AppData\Local\Temp\dlwifwadmgr"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1828
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C:\Users\Admin\AppData\Roaming\sinbless09185.exeC:\Users\Admin\AppData\Roaming\sinbless09185.exe /stext "C:\Users\Admin\AppData\Local\Temp\ngcafpkfaojppcu"4⤵
- Executes dropped EXE
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
PID:1936
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C:\Users\Admin\AppData\Roaming\sinbless09185.exeC:\Users\Admin\AppData\Roaming\sinbless09185.exe /stext "C:\Users\Admin\AppData\Local\Temp\qiplghdzowburiifxw"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1856
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Exploitation for Client Execution
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
328B
MD511ea9c4bc3cc128a893a8db682ff4da4
SHA12c20103254a6f72c92bb59a5c077f382a59672e4
SHA25698dbc13169055cea8022d60f617ef1e91fbc6a9cf962983e02b6e3e5d824a0d5
SHA51276014711d94d33eecbfc812aad25a2ac48fb05b988cda330a0ae497a7187859a10119db5e35c17136c57f89fcbd8c5f0ecc52f1418bd0b65688a4d1df28ff8dd
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C:\Users\Admin\AppData\Local\Microsoft\Office\14.0\OfficeFileCache\FSD-{3B464A4C-3823-486F-836C-1D86BB54A4AC}.FSD
Filesize128KB
MD53dbdc98ed6cc655aa26b5db2d22b901d
SHA1be25d714c26b0d03ec6e4e50ba13f3a21829699b
SHA25619e3435602dd01b09491139797a19f421af7b40b70890ff4a49688eee2c86087
SHA512d6d0160735de84516978d95ff29d53c184180c42112c3795a609ac1d89627fb9a7646f46c8b46058db9ac67d9eb8d97fb5e909af117925553a6adacf0dd8b453
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C:\Users\Admin\AppData\Local\Microsoft\Office\14.0\OfficeFileCache\LocalCacheFileEditManager\FSD-CNRY.FSD
Filesize128KB
MD58c9ddb6b0924e8fce7d87f27b799ee62
SHA19d50074e832ed1b469d4d44a9a6411e74e53b8b9
SHA2561a38dc6bd8eb723d6b731775669be3cc5cf54a19bf4f6989c7df57a34118eeca
SHA512bd42085fa6751debe041118ef7574eb69c6e5a79e782d0cdbf69da8f430ebe531ab8607a98fc5f7c719f41c7af7daa5c0f854aa71c758975c08b992d15d69caa
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C:\Users\Admin\AppData\Local\Microsoft\Office\14.0\OfficeFileCache\LocalCacheFileEditManager\FSD-CNRY.FSD
Filesize128KB
MD5e1d25fe27dfa2e745cc7e74befbd9850
SHA1e4dc99ade5b3b2e9f4dc1a6ab981289b6c02c127
SHA2561bd0bf59e082895cd4f88c0aa58c3da2d9cce22233a58bd699ce4fc7fcb87526
SHA51234dd549602ec92635a775aa9bbfd265fc4e36c8a74074c5c765bb67e64f69fc9491ea09f9e5397072c5f4408bdd840fefa74afd297ae49d6a5306756e86056b9
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C:\Users\Admin\AppData\Local\Microsoft\Office\14.0\OfficeFileCache\LocalCacheFileEditManager\FSD-{BB7CEC0D-4284-4DB8-A30B-4AB84EB9E012}.FSD
Filesize128KB
MD526ee38954d84dec07d296514082bb731
SHA1b80e8c355368946c52f860b405ce7a7923bce21b
SHA25641c062f7859fb9ebdc72d2ae357aa4afda44509a3346c7493132f40efc237c29
SHA5129db9d0429aaf8a40819cf5da56efcb68acdde766798c3bcdc323a53cc8aa690bde9cdc0bbd9d43dde8114a0d8455adc00bcbc8a731c973dea85c5883671246f0
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C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\6XUZ2JLF\thrylPXnvfySmGN[1].doc
Filesize766KB
MD5c0d48716ea8eef0d46d77cc231fa5371
SHA11438d2234f6a36f27aa9b0c2465e71fd607a26c3
SHA2566c98f35634c02c4cc1d7cbc628ba843c85e80559c1b1d51d44efb3e3bbfc40f6
SHA5123fecda49692f47df4b3971d505b4a0920c6cff73433656e25144e87755b48f68d5b56aa087a1df204b46c1e8b312d580aef453cb3815377030e788047299e73b
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Filesize
128KB
MD579822ac1df8f0064fd25d7d1739fe480
SHA167297f78e4dc537cd74dfbce24e368bb3a280147
SHA25660f6b8d81935a0b9fbff2ee7e1fc27757edf40fbecc6b5e5202640a0fa0be40d
SHA512b444227058c03302e450e2788311964be949698ab61c299502418448b2e5b57e1f331f90150beb1579c374c12891786bf04b27d5c226b0272afdb9633f06c826
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Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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Filesize
928KB
MD504d4d4d83e1601d220f83f09ae16cd79
SHA14f0a7d8060399a7ae5029690bdee2bf3b2e3e395
SHA25686b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8
SHA51287747374bd1c72c9d33d2af9e7456617c95e6c100788f16123bf15cb1c6748a13ad1ac9b5a967553fdf668ea226033a741c08f45febc2130a7e50ccabe69333c