Analysis
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max time kernel
152s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
31-12-2023 14:04
Behavioral task
behavioral1
Sample
3919c1dd8201a59f9d5c513e2613804b.pdf
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
3919c1dd8201a59f9d5c513e2613804b.pdf
Resource
win10v2004-20231215-en
General
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Target
3919c1dd8201a59f9d5c513e2613804b.pdf
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Size
84KB
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MD5
3919c1dd8201a59f9d5c513e2613804b
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SHA1
a790301972fbcabbcf2ad419a0e584216e3e13a8
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SHA256
2e3437eb6b3df411fd1732fb4ea2132ba51f638f542785159f717c38a8f80eda
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SHA512
1c5183b59501b1cb50d8dfafc451189fdf8f5832fb4c2f78a480721ccd7b98d640acac35b44f68b91f20d73c70a58033037032d08c8bb7bd138687627d9daf53
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SSDEEP
1536:Lg71qzQmWo9JpzjScJzB1lhJKVckTtLJ+T5iWnDLgjdBOgXgkWgywgMgJEWQpOCW:siQ69PzjSabJKVcytUoWnojdBxQEywgp
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.
description 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 -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 24 IoCs
pid Process 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4932 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe 4932 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 4932 wrote to memory of 4712 4932 AcroRd32.exe 91 PID 4932 wrote to memory of 4712 4932 AcroRd32.exe 91 PID 4932 wrote to memory of 4712 4932 AcroRd32.exe 91 PID 4932 wrote to memory of 4904 4932 AcroRd32.exe 92 PID 4932 wrote to memory of 4904 4932 AcroRd32.exe 92 PID 4932 wrote to memory of 4904 4932 AcroRd32.exe 92 PID 4932 wrote to memory of 3136 4932 AcroRd32.exe 93 PID 4932 wrote to memory of 3136 4932 AcroRd32.exe 93 PID 4932 wrote to memory of 3136 4932 AcroRd32.exe 93 PID 4932 wrote to memory of 3348 4932 AcroRd32.exe 94 PID 4932 wrote to memory of 3348 4932 AcroRd32.exe 94 PID 4932 wrote to memory of 3348 4932 AcroRd32.exe 94 PID 4932 wrote to memory of 1712 4932 AcroRd32.exe 96 PID 4932 wrote to memory of 1712 4932 AcroRd32.exe 96 PID 4932 wrote to memory of 1712 4932 AcroRd32.exe 96 PID 4932 wrote to memory of 3208 4932 AcroRd32.exe 100 PID 4932 wrote to memory of 3208 4932 AcroRd32.exe 100 PID 4932 wrote to memory of 3208 4932 AcroRd32.exe 100 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 4524 3208 RdrCEF.exe 101 PID 3208 wrote to memory of 2020 3208 RdrCEF.exe 103 PID 3208 wrote to memory of 2020 3208 RdrCEF.exe 103 PID 3208 wrote to memory of 2020 3208 RdrCEF.exe 103 PID 3208 wrote to memory of 2020 3208 RdrCEF.exe 103 PID 3208 wrote to memory of 2020 3208 RdrCEF.exe 103
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\3919c1dd8201a59f9d5c513e2613804b.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:4932 -
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⤵PID:4712
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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⤵PID:4904
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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⤵PID:3136
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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⤵PID:3348
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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⤵PID:1712
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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
PID:3208 -
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=C07D9FD5EF2ECBA60A89B6027D09DBDE --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:4524
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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=AE9B527DB5E6B5EC20464602E1B40BF9 --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=AE9B527DB5E6B5EC20464602E1B40BF9 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:13⤵PID:2020
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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=09DB444485156FBB7A086E7E630DF649 --mojo-platform-channel-handle=1808 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:4828
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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=DAA06E337954CB4F1D91F0994439F6E8 --mojo-platform-channel-handle=2352 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:452
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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=3FE40DE76986CBA6E413CD495F693AEC --mojo-platform-channel-handle=1956 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:5116
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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=8381D1BC8ED10FC55846354BB3DE5774 --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=8381D1BC8ED10FC55846354BB3DE5774 --renderer-client-id=8 --mojo-platform-channel-handle=1928 --allow-no-sandbox-job /prefetch:13⤵PID:4772
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C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:1204
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
64KB
MD56389b4a25b40e3f789d10c3a41559dae
SHA1e4e3a3147f3a4af0cf6baa50e23317928ed6fa25
SHA2563644820d915a556de075ed276832a123f23ae0ac9030b75e0260cde219b9c8fa
SHA5125b0edabce1d3f9a0781776f3f60fa3eb4f8b32724726df7159f62db5e39ac7b386645da5e5775d69f473c0aab8fa025aea92c4344df37d2ea8a18058d5effdc5
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Filesize
36KB
MD5b30d3becc8731792523d599d949e63f5
SHA119350257e42d7aee17fb3bf139a9d3adb330fad4
SHA256b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
SHA512523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
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Filesize
56KB
MD5752a1f26b18748311b691c7d8fc20633
SHA1c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA256111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
SHA512a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5