Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
26-04-2024 13:12
Behavioral task
behavioral1
Sample
CAA Final Feb 23 confidential.pdf
Resource
win11-20240412-en
General
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Target
CAA Final Feb 23 confidential.pdf
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Size
531KB
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MD5
ff36368c622a4d311c57e046d88c3f0e
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SHA1
18737472fffcbb9df49d9c981b6d9a41383b6cc4
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SHA256
7da2569acf040da2ddeae8245f19610a0cc2306349f0a1cd69210dca9fcd85ff
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SHA512
c07bb3c38d3644c71f4472bec89ae45526465fac552d30b6be9a45cddc6eb7b4b7f88519f84d25ed347d0a738b4ef4c87bf86d3cbe190d833ed16697a91dc600
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SSDEEP
6144:B2LGGGGGGGnopJl7Jdoo3AQt+rzn+u2l20iwd2HtJxYg19/WNt/9IJHtt4nHbzAg:4yopJZiQ8rDB30iHtJB9/WLWtunMy
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-1-5-21-801765966-3955847401-2235691403-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes:
AcroRd32.exepid process 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
AcroRd32.exepid process 476 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
AcroRd32.exepid process 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe 476 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
AcroRd32.exeRdrCEF.exedescription pid process target process PID 476 wrote to memory of 5048 476 AcroRd32.exe RdrCEF.exe PID 476 wrote to memory of 5048 476 AcroRd32.exe RdrCEF.exe PID 476 wrote to memory of 5048 476 AcroRd32.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 5008 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 RdrCEF.exe RdrCEF.exe PID 5048 wrote to memory of 4968 5048 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\CAA Final Feb 23 confidential.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:476 -
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:5048 -
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=FF9C1DB68748BED98ECBA439A5F0A7F5 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:5008
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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=7DDC1B9B4DA34356CB407FE9929A2980 --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=7DDC1B9B4DA34356CB407FE9929A2980 --renderer-client-id=2 --mojo-platform-channel-handle=1768 --allow-no-sandbox-job /prefetch:13⤵PID:4968
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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=00BA0EA7F6D50B50ED84BDD114C62BA1 --mojo-platform-channel-handle=2308 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:1064
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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=76147EBB2C13F2C520B0FA4CFF7A1724 --mojo-platform-channel-handle=1972 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:3732
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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=E4A2682933355AB8B3D43462C7D06DA2 --mojo-platform-channel-handle=2480 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:2740
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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=4E2468BC4DDF74086C5FD35EA99895A0 --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=4E2468BC4DDF74086C5FD35EA99895A0 --renderer-client-id=7 --mojo-platform-channel-handle=2572 --allow-no-sandbox-job /prefetch:13⤵PID:3024
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
64KB
MD58909262a4713199f172b202cc7e275c0
SHA12c46ee65ae7e91402b5d64d8629c71b38ae44e08
SHA256391cc85444d4cd3aeb98c1e30fb6d6f9c51986cd65fb7e3e330ce242ae47ab57
SHA5123f9676e4d81a5f630c9f3288c4d78fbafd00acba936be89de75813bac6639464e244cc6bf4bc4cb6a7e2ff43bb7389be90c71be58e0793a05e5d96670ee7482e
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Filesize
36KB
MD5b30d3becc8731792523d599d949e63f5
SHA119350257e42d7aee17fb3bf139a9d3adb330fad4
SHA256b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
SHA512523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
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Filesize
56KB
MD5752a1f26b18748311b691c7d8fc20633
SHA1c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA256111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
SHA512a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5