Analysis
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max time kernel
123s -
max time network
137s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
14-12-2021 05:00
Behavioral task
behavioral1
Sample
=?UTF-8?B?65287J2067iMIOy7pOuouOyKpCDsoJzslYjshJwucGRm?=.pdf
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
=?UTF-8?B?65287J2067iMIOy7pOuouOyKpCDsoJzslYjshJwucGRm?=.pdf
Resource
win10-en-20211208
General
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Target
=?UTF-8?B?65287J2067iMIOy7pOuouOyKpCDsoJzslYjshJwucGRm?=.pdf
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Size
1.5MB
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MD5
5bfad9edb63dad85fc88d3cebc776e52
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SHA1
cf1b1df1fd84ffef96e935dbceb976cc77034aa2
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SHA256
4d9dc783db19f4dd482997f81ff83db05e08a7eea8f18f45dcb8beb84d451c09
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SHA512
59ec650dcb0ba2eb61e86fa967b4d8413ee19b336e501380ebde02eeca973c5a8ce3001f50b7da923e997149b9e13b8e2ca5c0741ca0ba52792d628942919207
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-1-5-21-369956170-74428499-1628131376-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 18 IoCs
Processes:
AcroRd32.exepid process 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
AcroRd32.exepid process 3688 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
AcroRd32.exepid process 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe 3688 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
AcroRd32.exeRdrCEF.exedescription pid process target process PID 3688 wrote to memory of 852 3688 AcroRd32.exe RdrCEF.exe PID 3688 wrote to memory of 852 3688 AcroRd32.exe RdrCEF.exe PID 3688 wrote to memory of 852 3688 AcroRd32.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3260 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 RdrCEF.exe RdrCEF.exe PID 852 wrote to memory of 3240 852 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\=_UTF-8_B_65287J2067iMIOy7pOuouOyKpCDsoJzslYjshJwucGRm_=.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=FCA78545543A91B3A706FDB3CDC1831C --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=7FA04E156344C556497A4E1B5268E8E4 --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=7FA04E156344C556497A4E1B5268E8E4 --renderer-client-id=2 --mojo-platform-channel-handle=1628 --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=A0B19F728F5356F486E9A529B29C9993 --mojo-platform-channel-handle=2212 --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=FF7C3D47403A7494E0C7FAE40DD9FE98 --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=FF7C3D47403A7494E0C7FAE40DD9FE98 --renderer-client-id=5 --mojo-platform-channel-handle=1708 --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=06231710AE07244BFB82978BCBC0275E --mojo-platform-channel-handle=2556 --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=6906B6364F872E0020D386B4F15D59DE --mojo-platform-channel-handle=2684 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/852-115-0x0000000000000000-mapping.dmp
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memory/1236-132-0x0000000000000000-mapping.dmp
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memory/1236-131-0x0000000000C29000-0x0000000000C2A000-memory.dmpFilesize
4KB
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memory/1236-130-0x0000000077262000-0x0000000077263000-memory.dmpFilesize
4KB
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memory/2020-142-0x0000000000000000-mapping.dmp
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memory/2020-141-0x00000000017EB000-0x00000000017EC000-memory.dmpFilesize
4KB
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memory/2020-140-0x0000000077262000-0x0000000077263000-memory.dmpFilesize
4KB
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memory/2612-126-0x0000000077262000-0x0000000077263000-memory.dmpFilesize
4KB
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memory/2612-127-0x0000000000C16000-0x0000000000C17000-memory.dmpFilesize
4KB
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memory/2612-128-0x0000000000000000-mapping.dmp
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memory/3240-121-0x0000000000567000-0x0000000000568000-memory.dmpFilesize
4KB
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memory/3240-124-0x0000000000180000-0x0000000000181000-memory.dmpFilesize
4KB
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memory/3240-120-0x0000000077262000-0x0000000077263000-memory.dmpFilesize
4KB
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memory/3240-122-0x0000000000000000-mapping.dmp
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memory/3240-125-0x0000000000190000-0x0000000000191000-memory.dmpFilesize
4KB
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memory/3260-118-0x0000000000000000-mapping.dmp
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memory/3260-119-0x00000000009F0000-0x00000000009F1000-memory.dmpFilesize
4KB
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memory/3260-117-0x000000000172C000-0x000000000172D000-memory.dmpFilesize
4KB
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memory/3260-116-0x0000000077262000-0x0000000077263000-memory.dmpFilesize
4KB
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memory/3428-136-0x0000000077262000-0x0000000077263000-memory.dmpFilesize
4KB
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memory/3428-137-0x0000000000B85000-0x0000000000B86000-memory.dmpFilesize
4KB
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memory/3428-138-0x0000000000000000-mapping.dmp