Analysis
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max time kernel
142s -
max time network
140s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
25-01-2024 16:33
Behavioral task
behavioral1
Sample
74fa4b022e7bcf43ce27ae81451ee2f0.pdf
Resource
win7-20231215-en
General
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Target
74fa4b022e7bcf43ce27ae81451ee2f0.pdf
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Size
83KB
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MD5
74fa4b022e7bcf43ce27ae81451ee2f0
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SHA1
a5e655770076b3087cca9f8098610998b24d1244
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SHA256
5ffcaa1d70d032c05610596efc5d0fa4c8d08af6c77d421e3aaf8ac0eb986bc4
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SHA512
aa32e6058703ebb638916555ebbae8d1f9368548cd2edddf79822c46baf5387c39dfb124664b1a0b2e24829de8008dd94d8d7347d5fe1a59281f47b804d86403
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SSDEEP
1536:Ove4i28s6xpa4cgQCRMGB9Bn9y92WhIrf+UKe3CB8DLSQZbaPdWlIObPyf84:WoSZ0Ny97mGUKeK8DLS+2PYLbPyD
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-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes:
AcroRd32.exepid process 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
AcroRd32.exepid process 2536 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
Processes:
AcroRd32.exepid process 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe 2536 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
AcroRd32.exeRdrCEF.exedescription pid process target process PID 2536 wrote to memory of 4908 2536 AcroRd32.exe RdrCEF.exe PID 2536 wrote to memory of 4908 2536 AcroRd32.exe RdrCEF.exe PID 2536 wrote to memory of 4908 2536 AcroRd32.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 1796 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 RdrCEF.exe RdrCEF.exe PID 4908 wrote to memory of 4536 4908 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\74fa4b022e7bcf43ce27ae81451ee2f0.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:2536 -
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:4908 -
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=D81635E04E1877A34613BE0D3382C94E --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:1796
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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=389CB403370F3C3538835129092D2042 --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=389CB403370F3C3538835129092D2042 --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:13⤵PID:4536
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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=5002E254CAC5D75FF57C031A9AE2D29B --mojo-platform-channel-handle=2184 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:4660
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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=EE38123C01F9614C8E0FC1AC0EC0803C --mojo-platform-channel-handle=1960 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:1380
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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=1B74F24BC6111CB08722BAED872C98F9 --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=1B74F24BC6111CB08722BAED872C98F9 --renderer-client-id=6 --mojo-platform-channel-handle=1728 --allow-no-sandbox-job /prefetch:13⤵PID:628
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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=3A187B100EC0EA90EBB3DA0F5DA9AB79 --mojo-platform-channel-handle=2412 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:4804
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C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:4776
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessagesFilesize
64KB
MD55729123fbe57e67e9404cc443dfe7b28
SHA1078746ef352160ac51002ab9267f8a72e7a2a6ab
SHA2565e82da1b75a2893787b00d765c3c16d676cc93f8478e4a5dc29eb89da1a0badd
SHA512b5ade10eb79fc1930877387c9c99b3f66e3c738dcde5fc55dc3ab6c152551cd08a634350e7f70b4bb9c78c0a03ed1d1317e4238eddbf155580d226d9dbf1371f
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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