Analysis
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max time kernel
141s -
max time network
135s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
26/01/2024, 14:11
Behavioral task
behavioral1
Sample
779258df21e84e13e35f175be29c9420.pdf
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
779258df21e84e13e35f175be29c9420.pdf
Resource
win10v2004-20231222-en
General
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Target
779258df21e84e13e35f175be29c9420.pdf
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Size
37KB
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MD5
779258df21e84e13e35f175be29c9420
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SHA1
46842df07be1615f3e3a6aecd9defe562dff2e9c
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SHA256
7ef9f5b8acdf1d1adfbd6b2a6cce7298a605d59c49008f3a4f772ccdeacdbe7e
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SHA512
61d778dfbe5abfb58c2309809a0634af526096d8c78f1a0b3ef13d6bbadc9ab79a61a772e252913e8e20dcf54b95feb36652049a556798d1040d00b7fdbdeff9
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SSDEEP
768:QUHXcdfPzLR0uNNw3rVndKgdOGdJumrPzOz7lmUux13odr:QU3cdfPfR0uNNw3rXcGdJuCOtmZx1YN
Malware Config
Signatures
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Drops file in Program Files directory 3 IoCs
description ioc Process File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Resource\Font\AdobeFnt16.lst.3356 AcroRd32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins3d\prc\AdobeFnt16.lst.3356 AcroRd32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Resource\CMap\AdobeFnt16.lst.3356 AcroRd32.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 AcroRd32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz AcroRd32.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
pid Process 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3356 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 7 IoCs
pid Process 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe 3356 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 3356 wrote to memory of 3836 3356 AcroRd32.exe 94 PID 3356 wrote to memory of 3836 3356 AcroRd32.exe 94 PID 3356 wrote to memory of 3836 3356 AcroRd32.exe 94 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 4644 3836 RdrCEF.exe 98 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97 PID 3836 wrote to memory of 2448 3836 RdrCEF.exe 97
Processes
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C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\779258df21e84e13e35f175be29c9420.pdf"1⤵
- Drops file in Program Files directory
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3356 -
C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=165140432⤵
- Suspicious use of WriteProcessMemory
PID:3836 -
C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=686BB69DAA9C4DA5EF758CBC45FE706E --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=686BB69DAA9C4DA5EF758CBC45FE706E --renderer-client-id=2 --mojo-platform-channel-handle=1768 --allow-no-sandbox-job /prefetch:13⤵PID:2448
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C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=484FD08E64EFB6E9DA7AB2F1EC9D01C7 --mojo-platform-channel-handle=1760 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:4644
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C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=B2706C6796AC1C7003BFD90BC1391863 --mojo-platform-channel-handle=2312 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:3976
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C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=1363879F7954D17C8EE73AFC4558382A --mojo-platform-channel-handle=2420 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:3740
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C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=EA3D237C8CDD2D8B539C1093F5503F11 --mojo-platform-channel-handle=2404 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:2236
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C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=5EB3E0F85B821E0E61E779C142350965 --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=5EB3E0F85B821E0E61E779C142350965 --renderer-client-id=7 --mojo-platform-channel-handle=2508 --allow-no-sandbox-job /prefetch:13⤵PID:4292
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C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:1488
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
64KB
MD56cd43c7ac3a7f7325e6c6bb3f8bfe5a2
SHA169c5021f0ec9a0851136eec1353ba32d86bf5bc2
SHA256264b9e6592af823bf32c598a4a7caab4b303e663f849b5310af805a7af5a8097
SHA512abe42261396718e1b5e3c2fea7d62ba9d793789397339e8f561686576ed7b324002686e45f23d024285aefb978f1ea270d360c9f611377e5cc85fdcdfa858d04
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Filesize
56KB
MD5c26ed30e7d5ab440480838636efc41db
SHA1c66e0d00b56abebfb60d2fcc5cf85ad31a0d6591
SHA2566a3c5c4a8e57f77ecc22078fbf603ecc31fb82d429bd87b7b4b9261447092aef
SHA51296cdb78bca3e01d4513c31661987e5646e6a8ff24708918aa0d66dfa3ca5d98af4862c9f38c4f41f933c345d2d3adfb1d34d1430b33f45f916f41a9872a030df
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Filesize
56KB
MD5752a1f26b18748311b691c7d8fc20633
SHA1c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA256111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
SHA512a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5
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Filesize
97KB
MD5700e7d6f9cfc26cea4d04f65f02b3452
SHA1e5580200e54edb7cd4f7c5daada5c031434cf334
SHA256c3d8aef5d450a90e4a51335532c977515e589143be772697e666c8c9f4ab0c0e
SHA5121cafa5bab9838052312d8a6ced7d9baa4f28ef77d48681ada4dedf29400d235b51e187a1f207cfd8e008ee6274156cb7ef2821fdf7cbcc65d697ff4f469d7a82