Analysis
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max time kernel
141s -
max time network
150s -
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 16:08
Behavioral task
behavioral1
Sample
74ef87726f0e78b38c151927c5e22103.pdf
Resource
win7-20231215-en
General
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Target
74ef87726f0e78b38c151927c5e22103.pdf
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Size
100KB
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MD5
74ef87726f0e78b38c151927c5e22103
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SHA1
ea0a6da5e76542b9a4c2177eb19bc43c6959ced7
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SHA256
7d3be9d55462758fef1b7091cebbbb5b22afe2efdc3c6ffd342522bd5b0ba9c7
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SHA512
46024772f923de70c2f09aa0efe1035e87110b0887a7e7521a2aba2410e0bd479c1acdea0d570d2d1e18328e05a56b0ff5f969983de7c9367861a032e6923da2
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SSDEEP
3072:/nK1aH74RIsbHKqzsOJq4vBhbg3w2xqklPj5uRP:/ZH7y1bqq4OkEbiBK
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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz AcroRd32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 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 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
AcroRd32.exepid process 4852 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
Processes:
AcroRd32.exepid process 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe 4852 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
AcroRd32.exeRdrCEF.exedescription pid process target process PID 4852 wrote to memory of 4944 4852 AcroRd32.exe RdrCEF.exe PID 4852 wrote to memory of 4944 4852 AcroRd32.exe RdrCEF.exe PID 4852 wrote to memory of 4944 4852 AcroRd32.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 396 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 RdrCEF.exe RdrCEF.exe PID 4944 wrote to memory of 1368 4944 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\74ef87726f0e78b38c151927c5e22103.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:4852 -
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:4944 -
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=AF90F7E394560B75C7E4B457CA957AC6 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:396
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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=9E19A53295079ECE660321DEB729A88B --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=9E19A53295079ECE660321DEB729A88B --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:13⤵PID:1368
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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=21900BA1A90DEA6AAB800FC81330601F --mojo-platform-channel-handle=2312 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:1780
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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=287FCD2937F2D3ED6C66452366923BCD --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=287FCD2937F2D3ED6C66452366923BCD --renderer-client-id=5 --mojo-platform-channel-handle=1996 --allow-no-sandbox-job /prefetch:13⤵PID:4100
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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=33B2DB69E2A115630604CB46AFB5F068 --mojo-platform-channel-handle=2448 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:4320
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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=9EB6D52AA6F664EB141C48236020092E --mojo-platform-channel-handle=1752 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:2352
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C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:544
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessagesFilesize
64KB
MD543387f0a83ef5900ddea989d3253bb20
SHA10db3ad5538ec872c49d0fbc5ddf02f0782a03c26
SHA2568454715c5521d1515c93369295dd921523b1de1857a22e79232ea465f1bfbbaa
SHA5126e11d312ae57ff119d48dcb018c33c576f4cf3feda74e4a1d14745fb2419679bb3e2abc56531b5930cb9782efa943ab7183250356cb73b1986b24124fe6f1070
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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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memory/4852-26-0x000000000B750000-0x000000000B7A0000-memory.dmpFilesize
320KB