Analysis
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max time kernel
98s -
max time network
138s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
07/11/2022, 18:56
Static task
static1
Behavioral task
behavioral1
Sample
a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe
Resource
win10v2004-20220812-en
General
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Target
a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe
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Size
581KB
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MD5
0d750cf9245cd7ff0f0083f50c4c0f28
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SHA1
81038b0b078c4056b6b4bab2a62d4612fafcc052
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SHA256
a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af
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SHA512
b36c1547bf8f13aad6a3d6d53ce811427520038cb0c1662f64282d97d9f8eea96d07cef566e926e03e0fddd6f8d3baec565b18e2b6bcc04a5662ac588de56e87
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SSDEEP
12288:uoMDtCi7NFlZnNqZ9xGrLpZ0ZHEqtgb0Um:ufplNFgxG5eZngb0B
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 1344 nbfile0.exe 1256 nbfile1.exe -
Loads dropped DLL 7 IoCs
pid Process 1204 a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe 1204 a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe 1204 a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe 1204 a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe 1256 nbfile1.exe 1256 nbfile1.exe 1256 nbfile1.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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NSIS installer 7 IoCs
resource yara_rule behavioral1/files/0x000a000000013a31-66.dat nsis_installer_2 behavioral1/files/0x000a000000013a31-64.dat nsis_installer_2 behavioral1/files/0x000a000000013a31-68.dat nsis_installer_2 behavioral1/files/0x000a000000013a31-70.dat nsis_installer_2 behavioral1/files/0x000a000000013a31-71.dat nsis_installer_2 behavioral1/files/0x000a000000013a31-72.dat nsis_installer_2 behavioral1/files/0x000a000000013a31-73.dat nsis_installer_2 -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\InternetRegistry IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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 IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000048ca5449a4d21846ba8a995ea0abd35a000000000200000000001066000000010000200000002630ee0d85a73275ccbc45723ccd875258f8ac44203fd3eb1a608f0e821033a6000000000e8000000002000020000000f301ed1c39a7a0d05eaaadbb81f609a07f1731d8e842efe74fdd3d7c1173db2920000000dde326ae6524ab68901f13466120b2fb403120014743f3e6226697713ec07fc640000000cc1c4bd32fdd3a228bcc5c66dc2fb09e91a0227c58d6bfbc42ecfff0a7d202a4e6109ba8d3126f4d3a8b02d2a9ff7e65089f2e19ce5f8f0b9ac0b6a5798a201b IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Zoom IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = a0a5012e76f3d801 IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\PageSetup IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IETld\LowMic IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "374679117" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{4E97CF11-5F69-11ED-9D78-7225AF48583A} = "0" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IntelliForms IEXPLORE.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 1344 nbfile0.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1036 IEXPLORE.EXE -
Suspicious use of SetWindowsHookEx 7 IoCs
pid Process 1344 nbfile0.exe 1036 IEXPLORE.EXE 1036 IEXPLORE.EXE 1144 IEXPLORE.EXE 1144 IEXPLORE.EXE 1144 IEXPLORE.EXE 1144 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 37 IoCs
description pid Process procid_target PID 1204 wrote to memory of 1344 1204 a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe 27 PID 1204 wrote to memory of 1344 1204 a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe 27 PID 1204 wrote to memory of 1344 1204 a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe 27 PID 1204 wrote to memory of 1344 1204 a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe 27 PID 1344 wrote to memory of 1036 1344 nbfile0.exe 28 PID 1344 wrote to memory of 1036 1344 nbfile0.exe 28 PID 1344 wrote to memory of 1036 1344 nbfile0.exe 28 PID 1344 wrote to memory of 1036 1344 nbfile0.exe 28 PID 1036 wrote to memory of 1144 1036 IEXPLORE.EXE 30 PID 1036 wrote to memory of 1144 1036 IEXPLORE.EXE 30 PID 1036 wrote to memory of 1144 1036 IEXPLORE.EXE 30 PID 1036 wrote to memory of 1144 1036 IEXPLORE.EXE 30 PID 1344 wrote to memory of 1512 1344 nbfile0.exe 31 PID 1344 wrote to memory of 1512 1344 nbfile0.exe 31 PID 1344 wrote to memory of 1512 1344 nbfile0.exe 31 PID 1344 wrote to memory of 1512 1344 nbfile0.exe 31 PID 1204 wrote to memory of 1256 1204 a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe 32 PID 1204 wrote to memory of 1256 1204 a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe 32 PID 1204 wrote to memory of 1256 1204 a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe 32 PID 1204 wrote to memory of 1256 1204 a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe 32 PID 1204 wrote to memory of 1256 1204 a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe 32 PID 1204 wrote to memory of 1256 1204 a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe 32 PID 1204 wrote to memory of 1256 1204 a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe 32 PID 1256 wrote to memory of 1704 1256 nbfile1.exe 33 PID 1256 wrote to memory of 1704 1256 nbfile1.exe 33 PID 1256 wrote to memory of 1704 1256 nbfile1.exe 33 PID 1256 wrote to memory of 1704 1256 nbfile1.exe 33 PID 1256 wrote to memory of 1704 1256 nbfile1.exe 33 PID 1256 wrote to memory of 1704 1256 nbfile1.exe 33 PID 1256 wrote to memory of 1704 1256 nbfile1.exe 33 PID 1256 wrote to memory of 1968 1256 nbfile1.exe 34 PID 1256 wrote to memory of 1968 1256 nbfile1.exe 34 PID 1256 wrote to memory of 1968 1256 nbfile1.exe 34 PID 1256 wrote to memory of 1968 1256 nbfile1.exe 34 PID 1256 wrote to memory of 1968 1256 nbfile1.exe 34 PID 1256 wrote to memory of 1968 1256 nbfile1.exe 34 PID 1256 wrote to memory of 1968 1256 nbfile1.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe"C:\Users\Admin\AppData\Local\Temp\a591cdad1bf2942d956a56e918f18bf22470f42a61d44430415fd9acbd6e38af.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1204 -
C:\Users\Admin\AppData\Local\Temp\nbfile0.exeC:\Users\Admin\AppData\Local\Temp\nbfile0.exe2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1344 -
C:\Program Files\Internet Explorer\IEXPLORE.EXE"C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://down.97199.com/install2/?sl33⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1036 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1036 CREDAT:275457 /prefetch:24⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1144
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\nbfile0.exe3⤵PID:1512
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C:\Users\Admin\AppData\Local\Temp\nbfile1.exeC:\Users\Admin\AppData\Local\Temp\nbfile1.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1256 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\newsetup.vbs"3⤵PID:1704
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\1.vbs"3⤵PID:1968
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
467KB
MD574869a0346ab36bbba85022612505121
SHA12cd02f46f2f9f46eaf15fce40a3bf4781f80cf8a
SHA2566de866b5c8abb1db9b2be231b365c1aa029118fbc58823f443f00e3a33dff18a
SHA512723812083113cff82aa5e2243759c572518865e351cc81b7c2b85a05557862dbbd7a98b964ff6f3aa3802bb5d4dab01a14147211495fc5803d9ddb7b715f4de5
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Filesize
52KB
MD5c4ddf11ebdbf9d8397d710d2cb4e2fab
SHA18008c97e7d6ff92deb3e1755a614f4afedca92b9
SHA25667a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6
SHA5123c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9
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Filesize
52KB
MD5c4ddf11ebdbf9d8397d710d2cb4e2fab
SHA18008c97e7d6ff92deb3e1755a614f4afedca92b9
SHA25667a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6
SHA5123c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9
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Filesize
603B
MD5ae460d60abb3fef596cd8cfb53d8e808
SHA1264b021851d26108550a340cd8a7a6a99f049ca9
SHA2562236635a5adeaa58a1c7efa1f8db8c508afbe6383fe0ba8845ccb9fac03bd603
SHA51256d407fc833daa132d4f6ee971d26cd359a5052774d5f59ac33d544e41f7fe2146aafb7a597f51edd85ff8040efe01f3542ab6a67374769fe4c3cd3b3c0ec312
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Filesize
651B
MD54736e7158c27f244482f5a614b9dbdae
SHA1d3a0e95a81e9e3ec95cfd596b25749a0e24e27b9
SHA256b8229bc8d6b0013858fb9599cb510afa4566a439164b2c7444c449540a124acc
SHA512cebf895dd3ec3822c42b78bac49c685b063cb5afcbcfb3850b073cb118d086c5fa75ec50b6e73d90e14f2c6b595752ad87910b8cf27378424d72a9ea309bf824
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Filesize
467KB
MD574869a0346ab36bbba85022612505121
SHA12cd02f46f2f9f46eaf15fce40a3bf4781f80cf8a
SHA2566de866b5c8abb1db9b2be231b365c1aa029118fbc58823f443f00e3a33dff18a
SHA512723812083113cff82aa5e2243759c572518865e351cc81b7c2b85a05557862dbbd7a98b964ff6f3aa3802bb5d4dab01a14147211495fc5803d9ddb7b715f4de5
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Filesize
467KB
MD574869a0346ab36bbba85022612505121
SHA12cd02f46f2f9f46eaf15fce40a3bf4781f80cf8a
SHA2566de866b5c8abb1db9b2be231b365c1aa029118fbc58823f443f00e3a33dff18a
SHA512723812083113cff82aa5e2243759c572518865e351cc81b7c2b85a05557862dbbd7a98b964ff6f3aa3802bb5d4dab01a14147211495fc5803d9ddb7b715f4de5
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Filesize
52KB
MD5c4ddf11ebdbf9d8397d710d2cb4e2fab
SHA18008c97e7d6ff92deb3e1755a614f4afedca92b9
SHA25667a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6
SHA5123c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9
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Filesize
52KB
MD5c4ddf11ebdbf9d8397d710d2cb4e2fab
SHA18008c97e7d6ff92deb3e1755a614f4afedca92b9
SHA25667a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6
SHA5123c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9
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Filesize
52KB
MD5c4ddf11ebdbf9d8397d710d2cb4e2fab
SHA18008c97e7d6ff92deb3e1755a614f4afedca92b9
SHA25667a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6
SHA5123c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9
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Filesize
52KB
MD5c4ddf11ebdbf9d8397d710d2cb4e2fab
SHA18008c97e7d6ff92deb3e1755a614f4afedca92b9
SHA25667a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6
SHA5123c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9
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Filesize
52KB
MD5c4ddf11ebdbf9d8397d710d2cb4e2fab
SHA18008c97e7d6ff92deb3e1755a614f4afedca92b9
SHA25667a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6
SHA5123c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9