Analysis
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max time kernel
146s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
03-04-2023 14:54
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20230220-en
General
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Target
file.exe
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Size
694KB
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MD5
643ced7b8fe7f7be8a88a511b44f147e
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SHA1
85720e255f20401fa95eb302cb0cd1e8e05ed30e
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SHA256
128fa047e83a40698640ec9ccc30af053cd2a93ef4be583f02ca8e6ae5c97e6c
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SHA512
edf64bf16b7fcd5095a1e5d9a4de9ee32a5cb1f5584df760937c9290699800666bbfc54cebfb811ed36d6814ab0557a7e285bf441f65c811131f93544ddfd1d3
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SSDEEP
12288:Kb4luw3purT0vUCg0x/O+6iMYwnKZTFspS+K6Hxmp4EO2r7:KbhwLMFl+67YwceHVh2r
Malware Config
Extracted
djvu
http://zexeq.com/test2/get.php
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extension
.nifr
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offline_id
FCP2fiITr4rryFhFBnA59GMgwES5CunmcbPc76t1
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payload_url
http://uaery.top/dl/build2.exe
http://zexeq.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-v8HcfXTy5x 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: 0679SUjhw
Extracted
vidar
3.2
5df88deb5dde677ba658b77ad5f60248
https://steamcommunity.com/profiles/76561199489580435
https://t.me/tabootalks
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profile_id_v2
5df88deb5dde677ba658b77ad5f60248
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user_agent
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79
Signatures
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Detected Djvu ransomware 16 IoCs
Processes:
resource yara_rule behavioral2/memory/1620-134-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1280-136-0x0000000002230000-0x000000000234B000-memory.dmp family_djvu behavioral2/memory/1620-135-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1620-137-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1620-138-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1620-149-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1400-153-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1400-154-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1400-159-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1400-160-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1400-161-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1400-175-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1400-177-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1400-178-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1400-194-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1400-280-0x0000000000400000-0x0000000000537000-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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Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
file.exefile.exebuild2.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation build2.exe -
Executes dropped EXE 4 IoCs
Processes:
build2.exebuild2.exebuild3.exemstsca.exepid process 220 build2.exe 404 build2.exe 2020 build3.exe 3540 mstsca.exe -
Loads dropped DLL 2 IoCs
Processes:
build2.exepid process 404 build2.exe 404 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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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
file.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\64ef8336-335f-44e4-89da-018213e11146\\file.exe\" --AutoStart" file.exe -
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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Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 5 api.2ip.ua 15 api.2ip.ua 4 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
Processes:
file.exefile.exebuild2.exedescription pid process target process PID 1280 set thread context of 1620 1280 file.exe file.exe PID 4656 set thread context of 1400 4656 file.exe file.exe PID 220 set thread context of 404 220 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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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
build2.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 build2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString build2.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 5028 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
file.exefile.exebuild2.exepid process 1620 file.exe 1620 file.exe 1400 file.exe 1400 file.exe 404 build2.exe 404 build2.exe -
Suspicious use of WriteProcessMemory 53 IoCs
Processes:
file.exefile.exefile.exefile.exebuild2.exebuild3.exebuild2.execmd.exemstsca.exedescription pid process target process PID 1280 wrote to memory of 1620 1280 file.exe file.exe PID 1280 wrote to memory of 1620 1280 file.exe file.exe PID 1280 wrote to memory of 1620 1280 file.exe file.exe PID 1280 wrote to memory of 1620 1280 file.exe file.exe PID 1280 wrote to memory of 1620 1280 file.exe file.exe PID 1280 wrote to memory of 1620 1280 file.exe file.exe PID 1280 wrote to memory of 1620 1280 file.exe file.exe PID 1280 wrote to memory of 1620 1280 file.exe file.exe PID 1280 wrote to memory of 1620 1280 file.exe file.exe PID 1280 wrote to memory of 1620 1280 file.exe file.exe PID 1620 wrote to memory of 1928 1620 file.exe icacls.exe PID 1620 wrote to memory of 1928 1620 file.exe icacls.exe PID 1620 wrote to memory of 1928 1620 file.exe icacls.exe PID 1620 wrote to memory of 4656 1620 file.exe file.exe PID 1620 wrote to memory of 4656 1620 file.exe file.exe PID 1620 wrote to memory of 4656 1620 file.exe file.exe PID 4656 wrote to memory of 1400 4656 file.exe file.exe PID 4656 wrote to memory of 1400 4656 file.exe file.exe PID 4656 wrote to memory of 1400 4656 file.exe file.exe PID 4656 wrote to memory of 1400 4656 file.exe file.exe PID 4656 wrote to memory of 1400 4656 file.exe file.exe PID 4656 wrote to memory of 1400 4656 file.exe file.exe PID 4656 wrote to memory of 1400 4656 file.exe file.exe PID 4656 wrote to memory of 1400 4656 file.exe file.exe PID 4656 wrote to memory of 1400 4656 file.exe file.exe PID 4656 wrote to memory of 1400 4656 file.exe file.exe PID 1400 wrote to memory of 220 1400 file.exe build2.exe PID 1400 wrote to memory of 220 1400 file.exe build2.exe PID 1400 wrote to memory of 220 1400 file.exe build2.exe PID 220 wrote to memory of 404 220 build2.exe build2.exe PID 220 wrote to memory of 404 220 build2.exe build2.exe PID 220 wrote to memory of 404 220 build2.exe build2.exe PID 220 wrote to memory of 404 220 build2.exe build2.exe PID 220 wrote to memory of 404 220 build2.exe build2.exe PID 220 wrote to memory of 404 220 build2.exe build2.exe PID 220 wrote to memory of 404 220 build2.exe build2.exe PID 220 wrote to memory of 404 220 build2.exe build2.exe PID 220 wrote to memory of 404 220 build2.exe build2.exe PID 1400 wrote to memory of 2020 1400 file.exe build3.exe PID 1400 wrote to memory of 2020 1400 file.exe build3.exe PID 1400 wrote to memory of 2020 1400 file.exe build3.exe PID 2020 wrote to memory of 828 2020 build3.exe schtasks.exe PID 2020 wrote to memory of 828 2020 build3.exe schtasks.exe PID 2020 wrote to memory of 828 2020 build3.exe schtasks.exe PID 404 wrote to memory of 4408 404 build2.exe cmd.exe PID 404 wrote to memory of 4408 404 build2.exe cmd.exe PID 404 wrote to memory of 4408 404 build2.exe cmd.exe PID 4408 wrote to memory of 5028 4408 cmd.exe timeout.exe PID 4408 wrote to memory of 5028 4408 cmd.exe timeout.exe PID 4408 wrote to memory of 5028 4408 cmd.exe timeout.exe PID 3540 wrote to memory of 3480 3540 mstsca.exe schtasks.exe PID 3540 wrote to memory of 3480 3540 mstsca.exe schtasks.exe PID 3540 wrote to memory of 3480 3540 mstsca.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1280 -
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1620 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\64ef8336-335f-44e4-89da-018213e11146" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:1928
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4656 -
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1400 -
C:\Users\Admin\AppData\Local\4c0c34b1-5ec3-4e85-8d0f-8e28eae2f1c0\build2.exe"C:\Users\Admin\AppData\Local\4c0c34b1-5ec3-4e85-8d0f-8e28eae2f1c0\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:220 -
C:\Users\Admin\AppData\Local\4c0c34b1-5ec3-4e85-8d0f-8e28eae2f1c0\build2.exe"C:\Users\Admin\AppData\Local\4c0c34b1-5ec3-4e85-8d0f-8e28eae2f1c0\build2.exe"6⤵
- Checks computer location settings
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:404 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\4c0c34b1-5ec3-4e85-8d0f-8e28eae2f1c0\build2.exe" & exit7⤵
- Suspicious use of WriteProcessMemory
PID:4408 -
C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
PID:5028
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C:\Users\Admin\AppData\Local\4c0c34b1-5ec3-4e85-8d0f-8e28eae2f1c0\build3.exe"C:\Users\Admin\AppData\Local\4c0c34b1-5ec3-4e85-8d0f-8e28eae2f1c0\build3.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2020 -
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:828
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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:3540 -
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:3480
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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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\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize2KB
MD5b636591fc66c9d2a1a425dd29939147f
SHA10d48b7a8df06ce304c8a8b1c1dae5912c6b666f4
SHA25695c629cd39afdd4a9e98a94b6ea6a85c3e692c27c77d963899177b55948b72d1
SHA512e6be6c7ec5a010a3a3509a567891a0f338bf19e84649f5240e7e500cfc87c752cb28ca6a54aa93d896f4cdf2eac46775bf1165b0085eab23176b237d1bd9ad31
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize1KB
MD5a8c5ec082ddbfa706307d295f25ae6fa
SHA19d59be752069e201236a1edec3c3b374afc1b382
SHA256c6e194e6a673e59490dfe69c0ea81bff16de4cb1b9b82408dc2738ec7efe488c
SHA51280441dd81f5edc564f50c550a2b93db1bcf7d809811f8df43896d4d3d85c4bda95e735e67f82edf951f2601c84119f8a0769df3643ec777172f1134132ec6dd8
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize488B
MD5cdd2f94d96ad609e8abf6e968abe9e24
SHA1b6232629531d27c0de0177782ce87e2bc9468174
SHA256be3b61e3445f10eeebca74b9312b53069ee0e6370a62b964b5752069503196d8
SHA512240cc149621c48f3ee7ea77060f25fc81c305d71c0fd5db5c7bb756c110cad9ac19ab504d576e49844f038341e394f8d216f8d1766b05432c67cc051de859417
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize482B
MD5656f62bbfe24e1f05fda3081dd573f42
SHA18358c9bb62cacf192d54c7eb6eae3a1130ca3d4c
SHA25639957b3ddf1be4203923d3fd14c8d55089653d8292182e6b34f80e7f7422dae9
SHA5125e45569e05379d1ea7ad138a9cbd96ebea18efe0c8ed238af6a37902daad7caf558a2e8a7f99adcf647efa855763230c5a98c7784cbe2e214fe95a625f2b1dd7
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Filesize
416KB
MD5aa18968e6cfbdc382ada6a3ed2852085
SHA14a41fa1a182916d5790aa2071106b3441d64468d
SHA256c165c8db38ef8dd8c33d103b5ee78e9ddafd8081ff0c7c035fa5251f970e6cfb
SHA5128ffdacca2b003438fd4874e7c88beedb6ad8cf9cd5b36fda5907751e06a85a829e7d9ce7335fb59590462f78054722bccba511b21db838368c661d993000a845
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Filesize
416KB
MD5aa18968e6cfbdc382ada6a3ed2852085
SHA14a41fa1a182916d5790aa2071106b3441d64468d
SHA256c165c8db38ef8dd8c33d103b5ee78e9ddafd8081ff0c7c035fa5251f970e6cfb
SHA5128ffdacca2b003438fd4874e7c88beedb6ad8cf9cd5b36fda5907751e06a85a829e7d9ce7335fb59590462f78054722bccba511b21db838368c661d993000a845
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Filesize
416KB
MD5aa18968e6cfbdc382ada6a3ed2852085
SHA14a41fa1a182916d5790aa2071106b3441d64468d
SHA256c165c8db38ef8dd8c33d103b5ee78e9ddafd8081ff0c7c035fa5251f970e6cfb
SHA5128ffdacca2b003438fd4874e7c88beedb6ad8cf9cd5b36fda5907751e06a85a829e7d9ce7335fb59590462f78054722bccba511b21db838368c661d993000a845
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Filesize
416KB
MD5aa18968e6cfbdc382ada6a3ed2852085
SHA14a41fa1a182916d5790aa2071106b3441d64468d
SHA256c165c8db38ef8dd8c33d103b5ee78e9ddafd8081ff0c7c035fa5251f970e6cfb
SHA5128ffdacca2b003438fd4874e7c88beedb6ad8cf9cd5b36fda5907751e06a85a829e7d9ce7335fb59590462f78054722bccba511b21db838368c661d993000a845
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
694KB
MD5643ced7b8fe7f7be8a88a511b44f147e
SHA185720e255f20401fa95eb302cb0cd1e8e05ed30e
SHA256128fa047e83a40698640ec9ccc30af053cd2a93ef4be583f02ca8e6ae5c97e6c
SHA512edf64bf16b7fcd5095a1e5d9a4de9ee32a5cb1f5584df760937c9290699800666bbfc54cebfb811ed36d6814ab0557a7e285bf441f65c811131f93544ddfd1d3
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a