Analysis
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max time kernel
291s -
max time network
197s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
24-01-2024 15:55
Behavioral task
behavioral1
Sample
Form W-9.pdf
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
Form W-9.pdf
Resource
win10v2004-20231222-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-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes:
AcroRd32.exepid process 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
AcroRd32.exepid process 684 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
AcroRd32.exepid process 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe 684 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
AcroRd32.exeRdrCEF.exedescription pid process target process PID 684 wrote to memory of 4452 684 AcroRd32.exe RdrCEF.exe PID 684 wrote to memory of 4452 684 AcroRd32.exe RdrCEF.exe PID 684 wrote to memory of 4452 684 AcroRd32.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 3796 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 RdrCEF.exe RdrCEF.exe PID 4452 wrote to memory of 5064 4452 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:684 -
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:4452 -
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=8855F7969F3649A4ACF2BEF31A701A3F --mojo-platform-channel-handle=1724 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:3796
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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=913790CB6D3CD34F5B66B204A169924F --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=913790CB6D3CD34F5B66B204A169924F --renderer-client-id=2 --mojo-platform-channel-handle=1736 --allow-no-sandbox-job /prefetch:13⤵PID:5064
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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=CE0ED9242AF9291668BC565380D9C207 --mojo-platform-channel-handle=2328 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:880
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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=E1A9CE90D8F4C193FB7E7F159F019C4F --mojo-platform-channel-handle=1864 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:4328
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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=A7A90AD1312DCA84330F085BCFD8AB85 --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=A7A90AD1312DCA84330F085BCFD8AB85 --renderer-client-id=6 --mojo-platform-channel-handle=2404 --allow-no-sandbox-job /prefetch:13⤵PID:680
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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=5EC8F3C8C7C594874F28A6E9504A1AE3 --mojo-platform-channel-handle=2704 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:2176
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C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:1216
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
64KB
MD5194b142d5dacb13448002e1d3f15b9f0
SHA1d836c3271c241c9ff54d6c5036dd2a8562389c83
SHA256198f1fafd7fc40ad0e71fa2a6b3c4bccf76b85911b84229472959140d5a77db9
SHA5123ae2d0984d9b819af34a96cef56224b72bc38675bef666d146a0880183014adbdba8b451f9c7484d9f448e87a04b0e5ea41ab625aac475c68b15e346e9a2b11f
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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
MD57c220a8973aa7e94b6ffe278ecd48eb7
SHA1679d17fae401abb08b68fbc5dc1e730e81be2ee0
SHA25636178934ce647b534d523b77ddb443a42c044b404b90f3822a2dd41c651ade60
SHA5128d2d1de9645642bc12bdef3358492a9691d9a095de345d9dc5303b5f239c7a8d98f7ba2fc52f554072848900cb701b6f1112cc1d414901059d625f286b63e529