Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
05/03/2024, 18:20
Behavioral task
behavioral1
Sample
b55b3a79bb7fa58df16256cf69b12c50.pdf
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
b55b3a79bb7fa58df16256cf69b12c50.pdf
Resource
win10v2004-20240226-en
General
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Target
b55b3a79bb7fa58df16256cf69b12c50.pdf
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Size
88KB
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MD5
b55b3a79bb7fa58df16256cf69b12c50
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SHA1
3687a1ff94c1f5b0c5c4785d63c759f9ce4586cc
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SHA256
898553f33223b9ba7dbe5d8119cf4427115601e9213d5e15c0604ac83f233ccd
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SHA512
164da629d2b28efaa84abc3161583d77847bd6e1de88469bf3087eb8b75b31ae019e471d9509e435fa11e9d9a924fb0b0de19bb2add1695efee5eb9f6c971afe
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SSDEEP
1536:5/QO+DFdqP5fRK/IqXtut3iVpUsdmOcDLMoJUzUcGNq3kye3Wk/hC0WOpOaZJkle:5hKqY9OkUl57JUzUcGc3FeJYRaZJkPpS
Malware Config
Signatures
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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-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
pid Process 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeManageVolumePrivilege 4432 svchost.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1192 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe 1192 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1192 wrote to memory of 2340 1192 AcroRd32.exe 92 PID 1192 wrote to memory of 2340 1192 AcroRd32.exe 92 PID 1192 wrote to memory of 2340 1192 AcroRd32.exe 92 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 3476 2340 RdrCEF.exe 93 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94 PID 2340 wrote to memory of 4424 2340 RdrCEF.exe 94
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\b55b3a79bb7fa58df16256cf69b12c50.pdf"1⤵
- 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:1192 -
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:2340 -
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=07B7D82A419F713227B66614804EC140 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:3476
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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=9254A7D7A0D0EDF69FFED5996178A8A3 --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=9254A7D7A0D0EDF69FFED5996178A8A3 --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:13⤵PID:4424
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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=72AE4F5705D115A88A12190BBAE03610 --mojo-platform-channel-handle=2136 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:2084
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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=237EAF840346AA04E7D36571F73577BF --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=237EAF840346AA04E7D36571F73577BF --renderer-client-id=5 --mojo-platform-channel-handle=2424 --allow-no-sandbox-job /prefetch:13⤵PID:3252
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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=07911E3167BCC86C98F092FE9526AC43 --mojo-platform-channel-handle=2768 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:3952
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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=FE7B292874B5157950F685F007349359 --mojo-platform-channel-handle=3012 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:1020
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C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:1448
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe1⤵PID:3536
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4432
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
64KB
MD52e980a79ee8deca82cf79ccf3793eb6d
SHA1f3c116857674e1f986b5424527475e40df0c2734
SHA256a98d813a4e9e9bd439bbcb76d873207e04d4f1f3c9c824be8b13d72202b1b11e
SHA512437d88e246003ab3fdef6d7f9bed840a8a1b51fbd779df0c52d61dfc062b50d607f1fc8f39ead9d31ba109a6980c574b90da3f72eaa901574c6951e7b5759f0f
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Filesize
36KB
MD5b30d3becc8731792523d599d949e63f5
SHA119350257e42d7aee17fb3bf139a9d3adb330fad4
SHA256b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
SHA512523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
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Filesize
56KB
MD5752a1f26b18748311b691c7d8fc20633
SHA1c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA256111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
SHA512a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5