Analysis
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max time kernel
136s -
max time network
190s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
03/12/2022, 18:52
Static task
static1
Behavioral task
behavioral1
Sample
cf8dff80d692e2d33fdf276b00af9a045ae539e6ef5cd261c4a2110ef4449fb4.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
cf8dff80d692e2d33fdf276b00af9a045ae539e6ef5cd261c4a2110ef4449fb4.exe
Resource
win10v2004-20220812-en
General
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Target
cf8dff80d692e2d33fdf276b00af9a045ae539e6ef5cd261c4a2110ef4449fb4.exe
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Size
276KB
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MD5
33de1e62a5ef11f3a07b1eaff838d0b1
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SHA1
edcf67191b624a65e3b87dc9484a983956d52fc3
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SHA256
cf8dff80d692e2d33fdf276b00af9a045ae539e6ef5cd261c4a2110ef4449fb4
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SHA512
04f8afcbac2f4e13d839670c906d690f18bc1f2699482ebe3aaa94cf079ded730e97982ddbfce5ab062c67af55cceaad12295feffcedce98c7022044efad310b
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SSDEEP
3072:zjmviq+iLSknHhUcBZTY/RgU4y7IQh4QLbEY/N+iLSknHhUcBZwiW:v7CBNsg1y7IQh4uov7CB
Malware Config
Signatures
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Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run cf8dff80d692e2d33fdf276b00af9a045ae539e6ef5cd261c4a2110ef4449fb4.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinSysmc = "c:\\WINDOWS\\system32\\win32ocx\\Win32Sysmc.exe" cf8dff80d692e2d33fdf276b00af9a045ae539e6ef5cd261c4a2110ef4449fb4.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created \??\c:\WINDOWS\SysWOW64\win32ocx\Win32Sysmc.exe cf8dff80d692e2d33fdf276b00af9a045ae539e6ef5cd261c4a2110ef4449fb4.exe File opened for modification \??\c:\WINDOWS\SysWOW64\win32ocx\Win32Sysmc.exe cf8dff80d692e2d33fdf276b00af9a045ae539e6ef5cd261c4a2110ef4449fb4.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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description ioc Process Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\archivo.eluniversal.com.mx IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total\ = "19" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\archivo.eluniversal.com.mx\ = "190" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\eluniversal.com.mx\Total = "160" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000a85a600037c94d41b7ac2f550d0aee5c000000000200000000001066000000010000200000008b8cfbe252fd1a7f3e0a269d0326c9f8852b37f0c46139574d8e05cf9cd190e4000000000e8000000002000020000000cd41233f8917c907902aa55ec7a6025ddfbdd0442a30a7494890fee309a03da1200000006d84542a74f6f449d8af26766b52e54a7c027e1ef873ffbd5b279c417e54c4c54000000044a39f80def6dfd7956c85db34c1a121cb35eaf844eb5703f45b7dad23c4ce594a7f7a3c3b5ba22993a85d283c256b8c0e19ee80f0f3b890e231a1af2749d437 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\eluniversal.com.mx\Total = "19" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\eluniversal.com.mx\Total = "177" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\archivo.eluniversal.com.mx\ = "24" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total\ = "0" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main cf8dff80d692e2d33fdf276b00af9a045ae539e6ef5cd261c4a2110ef4449fb4.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\eluniversal.com.mx\NumberOfSubdomains = "1" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total\ = "177" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\archivo.eluniversal.com.mx\ = "19" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\archivo.eluniversal.com.mx\ = "147" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\eluniversal.com.mx\Total = "147" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total\ = "160" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\archivo.eluniversal.com.mx\ = "115" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\eluniversal.com.mx\Total = "190" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\archivo.eluniversal.com.mx\ = "177" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\eluniversal.com.mx IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total\ = "147" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\archivo.eluniversal.com.mx\ = "0" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total\ = "115" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total\ = "190" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total\ = "24" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\eluniversal.com.mx\Total = "115" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\archivo.eluniversal.com.mx\ = "43" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\google.com\NumberOfSubdomains = "1" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 40fa50f5d109d901 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\eluniversal.com.mx\Total = "24" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\archivo.eluniversal.com.mx\ = "160" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DOMStorage\eluniversal.com.mx\Total = "43" IEXPLORE.EXE -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1000 cf8dff80d692e2d33fdf276b00af9a045ae539e6ef5cd261c4a2110ef4449fb4.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1756 iexplore.exe -
Suspicious use of SetWindowsHookEx 9 IoCs
pid Process 1000 cf8dff80d692e2d33fdf276b00af9a045ae539e6ef5cd261c4a2110ef4449fb4.exe 1000 cf8dff80d692e2d33fdf276b00af9a045ae539e6ef5cd261c4a2110ef4449fb4.exe 1000 cf8dff80d692e2d33fdf276b00af9a045ae539e6ef5cd261c4a2110ef4449fb4.exe 1756 iexplore.exe 1756 iexplore.exe 580 IEXPLORE.EXE 580 IEXPLORE.EXE 580 IEXPLORE.EXE 580 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1000 wrote to memory of 1756 1000 cf8dff80d692e2d33fdf276b00af9a045ae539e6ef5cd261c4a2110ef4449fb4.exe 27 PID 1000 wrote to memory of 1756 1000 cf8dff80d692e2d33fdf276b00af9a045ae539e6ef5cd261c4a2110ef4449fb4.exe 27 PID 1000 wrote to memory of 1756 1000 cf8dff80d692e2d33fdf276b00af9a045ae539e6ef5cd261c4a2110ef4449fb4.exe 27 PID 1000 wrote to memory of 1756 1000 cf8dff80d692e2d33fdf276b00af9a045ae539e6ef5cd261c4a2110ef4449fb4.exe 27 PID 1756 wrote to memory of 580 1756 iexplore.exe 29 PID 1756 wrote to memory of 580 1756 iexplore.exe 29 PID 1756 wrote to memory of 580 1756 iexplore.exe 29 PID 1756 wrote to memory of 580 1756 iexplore.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\cf8dff80d692e2d33fdf276b00af9a045ae539e6ef5cd261c4a2110ef4449fb4.exe"C:\Users\Admin\AppData\Local\Temp\cf8dff80d692e2d33fdf276b00af9a045ae539e6ef5cd261c4a2110ef4449fb4.exe"1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1000 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" http://www.eluniversal.com.mx/notas/504568.html2⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1756 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1756 CREDAT:275457 /prefetch:23⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:580
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
61KB
MD5fc4666cbca561e864e7fdf883a9e6661
SHA12f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5
SHA25610f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b
SHA512c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d
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Filesize
1KB
MD5a266bb7dcc38a562631361bbf61dd11b
SHA13b1efd3a66ea28b16697394703a72ca340a05bd5
SHA256df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e
SHA5120da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD57b61e900bf04f2c121b86b2fdd54fc84
SHA17a8ddbb5351b2cc74e2dc8f8d903f2ceb7afd6d4
SHA256906fe2014501f2a69516b1517d45855879cdb10bd72b3ad98e845dff9e6ffa75
SHA512a533bad084058ed960ba080e9166c7bb8c495ccf698b97476b35eaf79bbc01d1f25c846f9e4ff1896cfbb2ec1ddae7f3be4cc1ec57d56a1de3fc654d00a21cc7
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357
Filesize242B
MD5763f121873ba08b8de6220bfbedfef56
SHA1d194a373c16b74d479c41f04d5492941771f6aa4
SHA25691f82552a932e82c3af5a4383f49192dd8e58bf036b16054afa871c022011d5d
SHA512a2b9dc41836b08523cd4efa2e53e9c71ffd4081b4a73695286aabdfb6f353ca28647f1fd04caef11924276639335b963d0a9998dd0271873b3fc96499e23bf45
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Filesize
603B
MD51cc2e4911e2514e3be0fc3fa6987d0be
SHA1e4749716189c2a4c570c5e50c9b4a013b6037057
SHA2560f28f2b6fc35d8dc9b0490f50a90f644912a6670b0ae09ebef585728a5899b5a
SHA512a52380638e5b4e0efe2192aadbca695fec29adf1151d8dbccdf2c9bc3d37c74b9a2392c149e6aec8109f65a29fa2e0f71d3aad9837ea83f674a4922cca891102