Analysis
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max time kernel
141s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system -
submitted
14-11-2023 15:11
Behavioral task
behavioral1
Sample
Form W-9.pdf
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
Form W-9.pdf
Resource
win10v2004-20231023-en
General
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Target
Form W-9.pdf
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Size
140KB
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MD5
6318c97f2d00d154f42b6dfbfd99508d
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SHA1
0e8000559c336d862acb7e6dceaa10b792d5a6a9
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SHA256
f4bbdd672be2303ab0c350e9995db44ae8bf43e5111a01e4f1bbdb23eb3762f9
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SHA512
750aeca52af944be29da0f9aaa23a85195d40a7ae5a795ca6c865240fa7f6fa12ed524352f52aede6b8a2c7f3dfa8f4cbd70b051e6ed24a2dc0f88defa57bdbe
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SSDEEP
3072:UVilYC32TlkA8VxiQNgAROHMQSJSFhasszQk2:Ur78DiQGARONGi
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-1-5-21-2231940048-779848787-2990559741-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes:
AcroRd32.exepid process 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
AcroRd32.exepid process 5068 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 7 IoCs
Processes:
AcroRd32.exepid process 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe 5068 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
AcroRd32.exeRdrCEF.exedescription pid process target process PID 5068 wrote to memory of 1472 5068 AcroRd32.exe RdrCEF.exe PID 5068 wrote to memory of 1472 5068 AcroRd32.exe RdrCEF.exe PID 5068 wrote to memory of 1472 5068 AcroRd32.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 3816 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 RdrCEF.exe RdrCEF.exe PID 1472 wrote to memory of 4360 1472 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\Form W-9.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:5068 -
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:1472 -
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=398ED43BFDBECCE429925436A72E45A3 --mojo-platform-channel-handle=1724 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:3816
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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=98D3A35257D7EC92BA68BD2CE486C0C8 --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=98D3A35257D7EC92BA68BD2CE486C0C8 --renderer-client-id=2 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job /prefetch:13⤵PID:4360
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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=8118DA6CFA1C2AA9D70C234C49852D9E --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=8118DA6CFA1C2AA9D70C234C49852D9E --renderer-client-id=4 --mojo-platform-channel-handle=2320 --allow-no-sandbox-job /prefetch:13⤵PID:3188
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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=75771CCCAD00171C4F72403503265034 --mojo-platform-channel-handle=2560 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:1320
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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=D2B7A02E3F0C8EE052DCAFE76798B8A0 --mojo-platform-channel-handle=1928 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:4252
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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=AC4C89431A6EDA9163AFB823BD987B77 --mojo-platform-channel-handle=2604 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:3564
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C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:4016
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
64KB
MD5519aa154d368846cd95b1c425c15362c
SHA1415ef357ea6afab60a14f96544c80bd710384aa7
SHA25670c41a5b9f2acce1963af7d02ad47b4596813c8b8933d773afe21b4b3e50ffd4
SHA512a96fe2ba89fb4aed3a3352dd080e966b77e2d79aea53d250187c0dbb43b0bf355dc81222be4e802d63ebc92ddc691fc54326e91a78049cefe6ac127587535c13
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Filesize
36KB
MD5b30d3becc8731792523d599d949e63f5
SHA119350257e42d7aee17fb3bf139a9d3adb330fad4
SHA256b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
SHA512523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
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Filesize
56KB
MD5752a1f26b18748311b691c7d8fc20633
SHA1c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA256111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
SHA512a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5
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Filesize
12KB
MD5eea0ec4c0e37e77d53ad211ceb40d4a3
SHA1498f6f91cb1693b328b9ffdf1583504206daba51
SHA2563ed8a1995ff43d432e53b6171e22eb0169ffbd2db7522cbf9a73ffdb87264523
SHA51297d5ee991b33883dd26babf46dd6c40bdb2cf3fdaa9f1fde74613c6d35ce0f954df8fa0caef7adddf0956f2c394fdb8cf107b7d212ea67e7f403fc7b2f4fd431