Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
22-04-2024 20:59
Behavioral task
behavioral1
Sample
ManageOnPremises-SMB.pdf
Resource
win10v2004-20240412-en
Behavioral task
behavioral2
Sample
VC3-CMMC.pdf
Resource
win10v2004-20240412-en
General
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Target
VC3-CMMC.pdf
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Size
478KB
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MD5
e158866b6bba4b8852ab62839f1dd1c5
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SHA1
d2eba308fa2ad271fd7b9592d4a14d6ce72a9819
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SHA256
9cb2b41f7eef8bc1b814bb69dc968bce2d11e508fed2772e4af8d31e42874900
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SHA512
ba8dad622f3d403e270d9ec0e6d8ab20ac7c7294dc2e953bce1794225317cc1e62bf92fda483076981aaf28ce0efd221d914e4bf4b15bcd2421b18568d264c03
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SSDEEP
12288:VeyZwcUVPYcHKjYBHjCHBYqInG0sINvldOWb5xN4zm:ZZwzPn6EDYBYzndb/
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.
Processes:
AcroRd32.exedescription 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 -
Processes:
AcroRd32.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes:
AcroRd32.exepid process 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
AcroRd32.exepid process 4040 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
Processes:
AcroRd32.exepid process 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe 4040 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
AcroRd32.exeRdrCEF.exedescription pid process target process PID 4040 wrote to memory of 4036 4040 AcroRd32.exe RdrCEF.exe PID 4040 wrote to memory of 4036 4040 AcroRd32.exe RdrCEF.exe PID 4040 wrote to memory of 4036 4040 AcroRd32.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 2984 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe PID 4036 wrote to memory of 1120 4036 RdrCEF.exe RdrCEF.exe
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\VC3-CMMC.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
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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" --backgroundcolor=165140432⤵
- Suspicious use of WriteProcessMemory
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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=859C7E66884509DF9E7DA1F5C68C8277 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵
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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=53F11728DA54F96944B83533B9AFF00D --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=53F11728DA54F96944B83533B9AFF00D --renderer-client-id=2 --mojo-platform-channel-handle=1760 --allow-no-sandbox-job /prefetch:13⤵
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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=59FFE384DDB6519FD0F08309F7993596 --mojo-platform-channel-handle=2152 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵
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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=CBB9926CED2A0D9FE2C16FA387D7C134 --mojo-platform-channel-handle=2308 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵
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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=D48D974CE91F97EEF2F963BBF0E7033C --mojo-platform-channel-handle=2208 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵
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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=31B4BB805078859E475E55268F052588 --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=31B4BB805078859E475E55268F052588 --renderer-client-id=7 --mojo-platform-channel-handle=2328 --allow-no-sandbox-job /prefetch:13⤵
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C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessagesFilesize
64KB
MD55b1387e13d3ce6d67b4f887da1c555a7
SHA167733e67f7314ce2283f3fff36ce9c8be587851f
SHA256fd16cfe78a86377659ae19d69157e8a92e45a18ee5cdda9ec9e140370a31dad0
SHA5128f4ae73e9b10d1cfacb2c94ad579c9cc96a61704205e9cf1a3b89cc05b75ef3afd17e359acb85e87070ed071f067e11769fbb42225e22f027f1c22b3ada7a342
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C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessagesFilesize
36KB
MD5b30d3becc8731792523d599d949e63f5
SHA119350257e42d7aee17fb3bf139a9d3adb330fad4
SHA256b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
SHA512523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
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C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessagesFilesize
56KB
MD5752a1f26b18748311b691c7d8fc20633
SHA1c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA256111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
SHA512a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5