Analysis
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max time kernel
171s -
max time network
184s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
29-11-2022 23:21
Static task
static1
Behavioral task
behavioral1
Sample
41001fdd7879ce9ede214e92c7e492be.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
41001fdd7879ce9ede214e92c7e492be.exe
Resource
win10v2004-20221111-en
General
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Target
41001fdd7879ce9ede214e92c7e492be.exe
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Size
664KB
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MD5
41001fdd7879ce9ede214e92c7e492be
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SHA1
215964b0399da37b41b7f420806a72feb72a7c28
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SHA256
aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1
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SHA512
1d125890b19e323fd3a67b3b2575c97df72f4f8b7f13d5e1d3e010063b88cc40a6f55d25513ada752992434f0b1d350152798381d43cb2ec591020c85eec44d9
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SSDEEP
12288:Q2lMqUe8G9qSkYuZpeKF8GJF6y9NbgGUx0kXZPwtSRGG/t6i5l5kCYlS:Q2K98cT3d9V3U/XZPwYRGQ6i5l5k5l
Malware Config
Extracted
djvu
http://fresherlights.com/test1/get.php
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extension
.uyro
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offline_id
HtkmULXEgJoZa495hFUJlvKCD0OwnxklbkoITjt1
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payload_url
http://uaery.top/dl/build2.exe
http://fresherlights.com/files/1/build3.exe
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ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-5UcwRdS3ED Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0609djfsieE
Extracted
vidar
56
517
https://t.me/asifrazatg
https://steamcommunity.com/profiles/76561199439929669
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profile_id
517
Signatures
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Detected Djvu ransomware 9 IoCs
Processes:
resource yara_rule behavioral2/memory/1836-133-0x00000000022B0000-0x00000000023CB000-memory.dmp family_djvu behavioral2/memory/4668-135-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4668-136-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4668-137-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4668-138-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4668-142-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4260-146-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4260-147-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4260-149-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Downloads MZ/PE file
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Executes dropped EXE 4 IoCs
Processes:
build2.exebuild3.exebuild2.exemstsca.exepid process 4468 build2.exe 2028 build3.exe 4108 build2.exe 3664 mstsca.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
41001fdd7879ce9ede214e92c7e492be.exe41001fdd7879ce9ede214e92c7e492be.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation 41001fdd7879ce9ede214e92c7e492be.exe Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation 41001fdd7879ce9ede214e92c7e492be.exe -
Loads dropped DLL 2 IoCs
Processes:
build2.exepid process 4108 build2.exe 4108 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
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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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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
41001fdd7879ce9ede214e92c7e492be.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\67e4cc25-8962-4521-bd8e-54ebf415eb81\\41001fdd7879ce9ede214e92c7e492be.exe\" --AutoStart" 41001fdd7879ce9ede214e92c7e492be.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 28 api.2ip.ua 29 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
Processes:
41001fdd7879ce9ede214e92c7e492be.exe41001fdd7879ce9ede214e92c7e492be.exebuild2.exedescription pid process target process PID 1836 set thread context of 4668 1836 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 3528 set thread context of 4260 3528 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 4468 set thread context of 4108 4468 build2.exe build2.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 4948 schtasks.exe 3820 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
41001fdd7879ce9ede214e92c7e492be.exe41001fdd7879ce9ede214e92c7e492be.exepid process 4668 41001fdd7879ce9ede214e92c7e492be.exe 4668 41001fdd7879ce9ede214e92c7e492be.exe 4260 41001fdd7879ce9ede214e92c7e492be.exe 4260 41001fdd7879ce9ede214e92c7e492be.exe -
Suspicious use of WriteProcessMemory 47 IoCs
Processes:
41001fdd7879ce9ede214e92c7e492be.exe41001fdd7879ce9ede214e92c7e492be.exe41001fdd7879ce9ede214e92c7e492be.exe41001fdd7879ce9ede214e92c7e492be.exebuild3.exebuild2.exemstsca.exedescription pid process target process PID 1836 wrote to memory of 4668 1836 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 1836 wrote to memory of 4668 1836 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 1836 wrote to memory of 4668 1836 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 1836 wrote to memory of 4668 1836 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 1836 wrote to memory of 4668 1836 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 1836 wrote to memory of 4668 1836 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 1836 wrote to memory of 4668 1836 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 1836 wrote to memory of 4668 1836 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 1836 wrote to memory of 4668 1836 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 1836 wrote to memory of 4668 1836 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 4668 wrote to memory of 4044 4668 41001fdd7879ce9ede214e92c7e492be.exe icacls.exe PID 4668 wrote to memory of 4044 4668 41001fdd7879ce9ede214e92c7e492be.exe icacls.exe PID 4668 wrote to memory of 4044 4668 41001fdd7879ce9ede214e92c7e492be.exe icacls.exe PID 4668 wrote to memory of 3528 4668 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 4668 wrote to memory of 3528 4668 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 4668 wrote to memory of 3528 4668 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 3528 wrote to memory of 4260 3528 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 3528 wrote to memory of 4260 3528 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 3528 wrote to memory of 4260 3528 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 3528 wrote to memory of 4260 3528 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 3528 wrote to memory of 4260 3528 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 3528 wrote to memory of 4260 3528 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 3528 wrote to memory of 4260 3528 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 3528 wrote to memory of 4260 3528 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 3528 wrote to memory of 4260 3528 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 3528 wrote to memory of 4260 3528 41001fdd7879ce9ede214e92c7e492be.exe 41001fdd7879ce9ede214e92c7e492be.exe PID 4260 wrote to memory of 4468 4260 41001fdd7879ce9ede214e92c7e492be.exe build2.exe PID 4260 wrote to memory of 4468 4260 41001fdd7879ce9ede214e92c7e492be.exe build2.exe PID 4260 wrote to memory of 4468 4260 41001fdd7879ce9ede214e92c7e492be.exe build2.exe PID 4260 wrote to memory of 2028 4260 41001fdd7879ce9ede214e92c7e492be.exe build3.exe PID 4260 wrote to memory of 2028 4260 41001fdd7879ce9ede214e92c7e492be.exe build3.exe PID 4260 wrote to memory of 2028 4260 41001fdd7879ce9ede214e92c7e492be.exe build3.exe PID 2028 wrote to memory of 3820 2028 build3.exe schtasks.exe PID 2028 wrote to memory of 3820 2028 build3.exe schtasks.exe PID 2028 wrote to memory of 3820 2028 build3.exe schtasks.exe PID 4468 wrote to memory of 4108 4468 build2.exe build2.exe PID 4468 wrote to memory of 4108 4468 build2.exe build2.exe PID 4468 wrote to memory of 4108 4468 build2.exe build2.exe PID 4468 wrote to memory of 4108 4468 build2.exe build2.exe PID 4468 wrote to memory of 4108 4468 build2.exe build2.exe PID 4468 wrote to memory of 4108 4468 build2.exe build2.exe PID 4468 wrote to memory of 4108 4468 build2.exe build2.exe PID 4468 wrote to memory of 4108 4468 build2.exe build2.exe PID 4468 wrote to memory of 4108 4468 build2.exe build2.exe PID 3664 wrote to memory of 4948 3664 mstsca.exe schtasks.exe PID 3664 wrote to memory of 4948 3664 mstsca.exe schtasks.exe PID 3664 wrote to memory of 4948 3664 mstsca.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\41001fdd7879ce9ede214e92c7e492be.exe"C:\Users\Admin\AppData\Local\Temp\41001fdd7879ce9ede214e92c7e492be.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1836 -
C:\Users\Admin\AppData\Local\Temp\41001fdd7879ce9ede214e92c7e492be.exe"C:\Users\Admin\AppData\Local\Temp\41001fdd7879ce9ede214e92c7e492be.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4668 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\67e4cc25-8962-4521-bd8e-54ebf415eb81" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:4044 -
C:\Users\Admin\AppData\Local\Temp\41001fdd7879ce9ede214e92c7e492be.exe"C:\Users\Admin\AppData\Local\Temp\41001fdd7879ce9ede214e92c7e492be.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3528 -
C:\Users\Admin\AppData\Local\Temp\41001fdd7879ce9ede214e92c7e492be.exe"C:\Users\Admin\AppData\Local\Temp\41001fdd7879ce9ede214e92c7e492be.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4260 -
C:\Users\Admin\AppData\Local\ee1be678-0c14-4a2f-ae4c-b0b9b37a9f9a\build2.exe"C:\Users\Admin\AppData\Local\ee1be678-0c14-4a2f-ae4c-b0b9b37a9f9a\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4468 -
C:\Users\Admin\AppData\Local\ee1be678-0c14-4a2f-ae4c-b0b9b37a9f9a\build2.exe"C:\Users\Admin\AppData\Local\ee1be678-0c14-4a2f-ae4c-b0b9b37a9f9a\build2.exe"6⤵
- Executes dropped EXE
- Loads dropped DLL
PID:4108 -
C:\Users\Admin\AppData\Local\ee1be678-0c14-4a2f-ae4c-b0b9b37a9f9a\build3.exe"C:\Users\Admin\AppData\Local\ee1be678-0c14-4a2f-ae4c-b0b9b37a9f9a\build3.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2028 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"6⤵
- Creates scheduled task(s)
PID:3820
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exeC:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3664 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"2⤵
- Creates scheduled task(s)
PID:4948
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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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\Local\67e4cc25-8962-4521-bd8e-54ebf415eb81\41001fdd7879ce9ede214e92c7e492be.exe
Filesize664KB
MD541001fdd7879ce9ede214e92c7e492be
SHA1215964b0399da37b41b7f420806a72feb72a7c28
SHA256aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1
SHA5121d125890b19e323fd3a67b3b2575c97df72f4f8b7f13d5e1d3e010063b88cc40a6f55d25513ada752992434f0b1d350152798381d43cb2ec591020c85eec44d9
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Filesize
258KB
MD5b9212ded69fae1fa1fb5d6db46a9fb76
SHA158face4245646b1cd379ee49f03a701eab1642be
SHA2567a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f
SHA51209cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342
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Filesize
258KB
MD5b9212ded69fae1fa1fb5d6db46a9fb76
SHA158face4245646b1cd379ee49f03a701eab1642be
SHA2567a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f
SHA51209cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342
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Filesize
258KB
MD5b9212ded69fae1fa1fb5d6db46a9fb76
SHA158face4245646b1cd379ee49f03a701eab1642be
SHA2567a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f
SHA51209cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
-
Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
-
Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a