Analysis
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max time kernel
200s -
max time network
183s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
31-03-2023 19:45
Static task
static1
Behavioral task
behavioral1
Sample
Approval_Summary_by_Employee1.pdf
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
Approval_Summary_by_Employee1.pdf
Resource
win10v2004-20230220-en
General
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Target
Approval_Summary_by_Employee1.pdf
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Size
1KB
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MD5
89991e8c6b6ade5d3a8b7f325d5b0dc0
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SHA1
7d4646b01e6c868d980974d58dc874a323b7fdb4
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SHA256
2200944a752a1196530695f8b5709c1b7c64931112f67084a0e590612fc59d71
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SHA512
838acbe674f02a29ef17dfc96052bf719c5f8a8fad3dbeb5dfb2348299b41aaf81b4f94bd611bd026aead1ea99506a107b67471ccd8971537c655962332d0d8a
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-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes:
AcroRd32.exepid process 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
AcroRd32.exepid process 3344 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
Processes:
AcroRd32.exepid process 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe 3344 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
AcroRd32.exeRdrCEF.exedescription pid process target process PID 3344 wrote to memory of 1572 3344 AcroRd32.exe RdrCEF.exe PID 3344 wrote to memory of 1572 3344 AcroRd32.exe RdrCEF.exe PID 3344 wrote to memory of 1572 3344 AcroRd32.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3860 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 RdrCEF.exe RdrCEF.exe PID 1572 wrote to memory of 3468 1572 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\Approval_Summary_by_Employee1.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=BC5E9549A05E703A29950919F8159AC3 --mojo-platform-channel-handle=1740 --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=75DD678E7D947B16543BA63E95DADC31 --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=2 --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=75DD678E7D947B16543BA63E95DADC31 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --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=6C33C9113C9F3B2D8180C0F8CB566AFF --mojo-platform-channel-handle=1844 --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=400D5A54025BC4C2F3A6A3BAEF558172 --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=2 --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=400D5A54025BC4C2F3A6A3BAEF558172 --renderer-client-id=5 --mojo-platform-channel-handle=1964 --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=2CA3D5501E26362A1AEB0DC9A333D396 --mojo-platform-channel-handle=2580 --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=187FAF20FEF364322A1BD4DEA8C4355E --mojo-platform-channel-handle=1956 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵
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C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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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
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C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessagesFilesize
64KB
MD503ed0303ce4f61fb32bdb361276ace48
SHA1ec2f413cfcbd623c9c51746deac8d427914fc674
SHA2563b71fa6b511a997e375b717fe9e17d8ec721182e3795b61284b3e20c00ba1ed6
SHA512579ff3d5b8b798d2a7e72d199970d8cd99b5ecf32e3e3521ba29d9c3efb595b339172030ac90b6f3ba4ff1aa4e4f4fef3d968b0222c1b08aa969d1bfabc0995f