Analysis
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max time kernel
81s -
max time network
140s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
22-01-2021 04:38
Behavioral task
behavioral1
Sample
summer.pdf
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
summer.pdf
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
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Target
summer.pdf
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Size
185KB
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MD5
d2998394eb9e45d8a24cbcf559dcea20
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SHA1
4becd9c9c93d4a107e11e218c0bad0fceeed144b
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SHA256
530df6b3cc251bec06b7abe2c7f07fac3c449952dd02009ea656e950d97132d4
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SHA512
046e627ada405c5ba3c65f8882b985f15221fec773009165d1bfc54c3cd47ceadadc2950642de841e1f01e3f93bf030f86382e71ea3f51c25df66cb6ba20a707
Score
5/10
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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-1-5-21-1985363256-3005190890-1182679451-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 16 IoCs
Processes:
AcroRd32.exepid process 652 AcroRd32.exe 652 AcroRd32.exe 652 AcroRd32.exe 652 AcroRd32.exe 652 AcroRd32.exe 652 AcroRd32.exe 652 AcroRd32.exe 652 AcroRd32.exe 652 AcroRd32.exe 652 AcroRd32.exe 652 AcroRd32.exe 652 AcroRd32.exe 652 AcroRd32.exe 652 AcroRd32.exe 652 AcroRd32.exe 652 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
AcroRd32.exepid process 652 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
Processes:
AcroRd32.exepid process 652 AcroRd32.exe 652 AcroRd32.exe 652 AcroRd32.exe 652 AcroRd32.exe 652 AcroRd32.exe -
Suspicious use of WriteProcessMemory 253 IoCs
Processes:
AcroRd32.exeRdrCEF.exedescription pid process target process PID 652 wrote to memory of 1940 652 AcroRd32.exe RdrCEF.exe PID 652 wrote to memory of 1940 652 AcroRd32.exe RdrCEF.exe PID 652 wrote to memory of 1940 652 AcroRd32.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 3128 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 RdrCEF.exe RdrCEF.exe PID 1940 wrote to memory of 4036 1940 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\summer.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=2F33F405BC44276472E8FF1F2D39460C --mojo-platform-channel-handle=1636 --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=AF53670608B1D036ECFAFBB0E98D1DCC --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=1 --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=AF53670608B1D036ECFAFBB0E98D1DCC --renderer-client-id=2 --mojo-platform-channel-handle=1652 --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=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=3BCE760F5D7D9D391512C2812A823C17 --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=1 --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=3BCE760F5D7D9D391512C2812A823C17 --renderer-client-id=4 --mojo-platform-channel-handle=2072 --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=43EBAE05E2A3326D03D9BC4BD1A9CF00 --mojo-platform-channel-handle=2480 --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=681ADCE47C096A236394B543289AA6E7 --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=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=67E0E245E9288033AAC61F8B4E56A22D --mojo-platform-channel-handle=2564 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1940-2-0x0000000000000000-mapping.dmp
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memory/3128-4-0x0000000000000000-mapping.dmp
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memory/3128-3-0x0000000077BF2000-0x0000000077BF200C-memory.dmpFilesize
12B
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memory/3176-23-0x0000000000000000-mapping.dmp
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memory/3176-22-0x0000000077BF2000-0x0000000077BF200C-memory.dmpFilesize
12B
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memory/3716-19-0x0000000077BF2000-0x0000000077BF200C-memory.dmpFilesize
12B
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memory/3716-20-0x0000000000000000-mapping.dmp
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memory/3764-12-0x0000000000000000-mapping.dmp
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memory/3764-11-0x0000000077BF2000-0x0000000077BF200C-memory.dmpFilesize
12B
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memory/3976-17-0x0000000000000000-mapping.dmp
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memory/3976-16-0x0000000077BF2000-0x0000000077BF200C-memory.dmpFilesize
12B
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memory/4036-7-0x0000000000000000-mapping.dmp
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memory/4036-6-0x0000000077BF2000-0x0000000077BF200C-memory.dmpFilesize
12B