Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
06-03-2024 20:28
Behavioral task
behavioral1
Sample
b81c7edd9809f091cb80d765aaf9e265.pdf
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
b81c7edd9809f091cb80d765aaf9e265.pdf
Resource
win10v2004-20240226-en
General
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Target
b81c7edd9809f091cb80d765aaf9e265.pdf
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Size
59KB
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MD5
b81c7edd9809f091cb80d765aaf9e265
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SHA1
1cb37249d762393d5f0ad009f0f4bfa5dafd0c3b
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SHA256
ba1414ecec167a5279e46f97327df316d559bb1f05e42fb1daeb7003586e6066
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SHA512
e198cbf1469171ee8676b8c497171faf114553702df1924be0fdba849252aeb7480bc59752299dba01fc6501a3dd9cb8271521c064e7a5600b63db41964dafd3
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SSDEEP
1536:VZO0sIjlMBT2VSoQmhBKYTeo+GNg24m/LYXW:OIlYk/nhcYTeol+2HLsW
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-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
pid Process 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4812 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 7 IoCs
pid Process 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe 4812 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 4812 wrote to memory of 4328 4812 AcroRd32.exe 90 PID 4812 wrote to memory of 4328 4812 AcroRd32.exe 90 PID 4812 wrote to memory of 4328 4812 AcroRd32.exe 90 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 5040 4328 RdrCEF.exe 92 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93 PID 4328 wrote to memory of 752 4328 RdrCEF.exe 93
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\b81c7edd9809f091cb80d765aaf9e265.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:4812 -
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:4328 -
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=24DCE140ACF579713440D59E488D7973 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:5040
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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=F8EC7832199C0701F467475332E67754 --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=F8EC7832199C0701F467475332E67754 --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:13⤵PID:752
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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=A026A79E3B02475D630E9DB687E5E9F2 --mojo-platform-channel-handle=2156 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:3604
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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=9BA49B238522455EE4F937B64E9FEC11 --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=9BA49B238522455EE4F937B64E9FEC11 --renderer-client-id=5 --mojo-platform-channel-handle=2360 --allow-no-sandbox-job /prefetch:13⤵PID:2424
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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=F68FB0EF1DC9DE87797A8C6A2FAB15EC --mojo-platform-channel-handle=2692 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:4952
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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=442894A28CDC43E0BFDAF5BEE19DF9CE --mojo-platform-channel-handle=2264 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:4936
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
64KB
MD5750f64970b98e943e654ff823901d5bb
SHA1f4178d2c2c469810940d4c7be6b586c0e0094732
SHA2566eb350c51a3718ca1357d8e04136dceb0127aa70ff06c1464bd691cfe3c27673
SHA5121462862bd9f3c6b2ec37f2c33dd13b73a45ead6bab66136145ce4c5f5916dfce590000bc87b0efadb8cd1fcfedb0900155b40fb0e1d35dc4fcd27cce85b47129
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Filesize
36KB
MD5b30d3becc8731792523d599d949e63f5
SHA119350257e42d7aee17fb3bf139a9d3adb330fad4
SHA256b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
SHA512523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
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Filesize
56KB
MD5752a1f26b18748311b691c7d8fc20633
SHA1c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA256111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
SHA512a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5