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Analysis
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max time kernel
95s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
17/09/2024, 01:09
Static task
static1
Behavioral task
behavioral1
Sample
3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe
Resource
win10v2004-20240802-en
General
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Target
3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe
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Size
283KB
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MD5
e2cd52e91edffa873b4e1630684ea6c6
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SHA1
dcbb5971ecb7353062ed294f6d867da2bb179975
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SHA256
3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1
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SHA512
e59f885e6424860e6d0cfebc8e712f1929cbc029e63f49c22c3623af268c2c537089779cf06a1b91d355aac8c6c21aaf66db0044031d09d1fc88d0196fbfe7f6
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SSDEEP
6144:tFOUZ4uCh3Nc+8iakTqQ7G1fN6bSBvFIIv1vxklTXfRI4EBIGZ5EO:SUSuCj8iHjiNGkFfxxW64EBIGZ5EO
Malware Config
Extracted
vidar
https://t.me/edm0d
https://steamcommunity.com/profiles/76561199768374681
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 OPR/110.0.0.0
Signatures
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Detect Vidar Stealer 20 IoCs
resource yara_rule behavioral2/memory/1408-4-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 behavioral2/memory/1408-9-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 behavioral2/memory/1408-8-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 behavioral2/memory/1408-24-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 behavioral2/memory/1408-25-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 behavioral2/memory/1408-41-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 behavioral2/memory/1408-42-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 behavioral2/memory/1408-58-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 behavioral2/memory/1408-59-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 behavioral2/memory/1408-83-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 behavioral2/memory/1408-84-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 behavioral2/memory/1408-92-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 behavioral2/memory/1408-93-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 behavioral2/memory/1436-124-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 behavioral2/memory/1436-128-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 behavioral2/memory/1436-126-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 behavioral2/memory/1436-137-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 behavioral2/memory/1436-138-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 behavioral2/memory/1436-153-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 behavioral2/memory/1436-154-0x0000000000400000-0x0000000000657000-memory.dmp family_vidar_v7 -
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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Downloads MZ/PE file
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation RegAsm.exe -
Executes dropped EXE 2 IoCs
pid Process 2180 BAFIEGIECG.exe 1868 KFBFCAFCBK.exe -
Loads dropped DLL 2 IoCs
pid Process 1408 RegAsm.exe 1408 RegAsm.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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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Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3516 set thread context of 1408 3516 3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe 83 PID 1868 set thread context of 1436 1868 KFBFCAFCBK.exe 98 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 216 2180 WerFault.exe 91 -
System Location Discovery: System Language Discovery 1 TTPs 7 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 timeout.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language BAFIEGIECG.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language KFBFCAFCBK.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 RegAsm.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString RegAsm.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 RegAsm.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString RegAsm.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 4928 timeout.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 1408 RegAsm.exe 1408 RegAsm.exe 1408 RegAsm.exe 1408 RegAsm.exe 1408 RegAsm.exe 1408 RegAsm.exe 1408 RegAsm.exe 1408 RegAsm.exe 1436 RegAsm.exe 1436 RegAsm.exe 1436 RegAsm.exe 1436 RegAsm.exe -
Suspicious use of WriteProcessMemory 38 IoCs
description pid Process procid_target PID 3516 wrote to memory of 1408 3516 3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe 83 PID 3516 wrote to memory of 1408 3516 3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe 83 PID 3516 wrote to memory of 1408 3516 3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe 83 PID 3516 wrote to memory of 1408 3516 3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe 83 PID 3516 wrote to memory of 1408 3516 3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe 83 PID 3516 wrote to memory of 1408 3516 3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe 83 PID 3516 wrote to memory of 1408 3516 3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe 83 PID 3516 wrote to memory of 1408 3516 3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe 83 PID 3516 wrote to memory of 1408 3516 3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe 83 PID 3516 wrote to memory of 1408 3516 3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe 83 PID 1408 wrote to memory of 2180 1408 RegAsm.exe 91 PID 1408 wrote to memory of 2180 1408 RegAsm.exe 91 PID 1408 wrote to memory of 2180 1408 RegAsm.exe 91 PID 1408 wrote to memory of 1868 1408 RegAsm.exe 94 PID 1408 wrote to memory of 1868 1408 RegAsm.exe 94 PID 1408 wrote to memory of 1868 1408 RegAsm.exe 94 PID 1868 wrote to memory of 5028 1868 KFBFCAFCBK.exe 96 PID 1868 wrote to memory of 5028 1868 KFBFCAFCBK.exe 96 PID 1868 wrote to memory of 5028 1868 KFBFCAFCBK.exe 96 PID 1868 wrote to memory of 4604 1868 KFBFCAFCBK.exe 97 PID 1868 wrote to memory of 4604 1868 KFBFCAFCBK.exe 97 PID 1868 wrote to memory of 4604 1868 KFBFCAFCBK.exe 97 PID 1868 wrote to memory of 1436 1868 KFBFCAFCBK.exe 98 PID 1868 wrote to memory of 1436 1868 KFBFCAFCBK.exe 98 PID 1868 wrote to memory of 1436 1868 KFBFCAFCBK.exe 98 PID 1868 wrote to memory of 1436 1868 KFBFCAFCBK.exe 98 PID 1868 wrote to memory of 1436 1868 KFBFCAFCBK.exe 98 PID 1868 wrote to memory of 1436 1868 KFBFCAFCBK.exe 98 PID 1868 wrote to memory of 1436 1868 KFBFCAFCBK.exe 98 PID 1868 wrote to memory of 1436 1868 KFBFCAFCBK.exe 98 PID 1868 wrote to memory of 1436 1868 KFBFCAFCBK.exe 98 PID 1868 wrote to memory of 1436 1868 KFBFCAFCBK.exe 98 PID 1408 wrote to memory of 2120 1408 RegAsm.exe 102 PID 1408 wrote to memory of 2120 1408 RegAsm.exe 102 PID 1408 wrote to memory of 2120 1408 RegAsm.exe 102 PID 2120 wrote to memory of 4928 2120 cmd.exe 104 PID 2120 wrote to memory of 4928 2120 cmd.exe 104 PID 2120 wrote to memory of 4928 2120 cmd.exe 104
Processes
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C:\Users\Admin\AppData\Local\Temp\3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe"C:\Users\Admin\AppData\Local\Temp\3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3516 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Checks computer location settings
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1408 -
C:\ProgramData\BAFIEGIECG.exe"C:\ProgramData\BAFIEGIECG.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2180 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2180 -s 7204⤵
- Program crash
PID:216
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C:\ProgramData\KFBFCAFCBK.exe"C:\ProgramData\KFBFCAFCBK.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1868 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"4⤵PID:5028
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"4⤵PID:4604
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"4⤵
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1436
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\DAAFIIJDAAAA" & exit3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2120 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:4928
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2180 -ip 21801⤵PID:3120
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
4Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
160KB
MD5f310cf1ff562ae14449e0167a3e1fe46
SHA185c58afa9049467031c6c2b17f5c12ca73bb2788
SHA256e187946249cd390a3c1cf5d4e3b0d8f554f9acdc416bf4e7111fff217bb08855
SHA5121196371de08c964268c44103ccaed530bda6a145df98e0f480d8ee5ad58cb6fb33ca4c9195a52181fe864726dcf52e6a7a466d693af0cda43400a3a7ef125fad
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Filesize
322KB
MD5a5098dee7d78acfb0294523855906aad
SHA15f44ca3f038456d07f7702cf061e7dad0039a8fb
SHA256b07e6681aedf25d80c36bb0cb362d3d9c22c17a42d03e42e0d2413ad1be1a4c2
SHA512b962efb2830b82e3cb4e39e3bd09ae68211dc0842ebd3c497e9425fcdd8ffb6eb09ca29386bf80fe9487346979592cbbc0f14c71e81129faf5ffd6f544226552
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Filesize
283KB
MD5ac7314c596e766b8f4f368579e2e0f8f
SHA10e4941e5e4299d04b9408194542c7362bcabcd2f
SHA256be442a04bc031b4dc72835efeeeb025e9a103c8012382173965fba30bd3a96b9
SHA5124258b6d15cd1c87d1787507f9132e5cf2caebfbf46dd055950dec8bb55faa094571d5b88cc58078adbab49f72fd3439f14ccae04de3d4bde672a540699a49428
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE
Filesize2KB
MD5f3996f922326413e2e955f3774434d01
SHA1a68789fa985ebfab0c61bbee12098e404288cded
SHA25634a9640d4292dbc5d1fee85322b3c457eb2ee28284618a602ec936de9a104200
SHA51234b7c1c1e5bdaa7da31887fce2b8069203922599824fd28e1db53cd0ebd343118c7899f56159eeb0500c96ca0ba4e9f28a6695f8032ca4acb4ee17204b746376
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771
Filesize2KB
MD5e2e9309062d386d7fec2730d865be1b3
SHA130dbe40a07dd56429b70601ff35c954d78ee99b9
SHA25601459ba654c52454a8dae37f078fffc280d3a13b55837fd82d05a9c902e88ebb
SHA51246ec1842ed5b93bf5e2533ce2561b0035ff0beb8e5ce61ecb2ec7bdb13f54e38a7a44d258b6713deb5278b39a6cd8b8dff349d3a2a088f9f4014eed6262f6b63
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D
Filesize1KB
MD517bc873e2a1ececdb96ba865079e2f7a
SHA1a44455ae9199b8f0b798ffe8952d2ce2b3cdf335
SHA256aaf3cca466c1452b3c1947aebea6107b1fba212c1cf9a0bcb2f7515b2a6cccea
SHA512cc0b2d9cd308ec3b289e67f8041a633099a69705587fd042201a3d2badc3cebdf18a971997fb9c3148ee9a016385f4657f74029bc47770e61c1b2c0c63f4adac
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE
Filesize458B
MD595ca6cd9a2bea9c02cd05ed1b9feaeb3
SHA1a7f277170f8de202cc795e3520b41fcd78dfbc4e
SHA2561e7c84836df3c1ef6a7eae0d65c606a43e7c9677589fd0bf8e919eff305e5a98
SHA51251585b0c4d083568d12c1cdc97715f328bb76b38e9d4772771f1b649ad278c906357b2a3bc19b068de02958c771a76fbb834110b4cf0da0a72f820cd5147d7ad
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771
Filesize450B
MD5997dd639178b75b17f70b9989f0672db
SHA1e80bf0976e0d415cd564a8fe5d8b68d0846b5f65
SHA2564c3a867005c79f31cbdd5369617638e5d682241585af4dc38221826d26d2c4f5
SHA51215be67b028ecdab4978c38e4c03b6c9e275229565638c5d06faaa2d9b28838f57339ced87a9b407b321045fde31b65b2dff9f8d7ebd91d2d81f8830473b4c288
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D
Filesize458B
MD540ff71860718486fa58dcb50b2c78100
SHA1660499a799de5406b0cb7c77a1f386539df5b086
SHA2566ce06bded1663cdb558870760e01a90e1aa64d51e2e152cca3a9cc71b90384a9
SHA512d51296352e02bc35e2ac9e7811b77ac72f949555d306ff308f910576ff0a5060161a34301fe059544af00f644a240621617b589fb47eb9cece6fec6b59700e28