Analysis
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max time kernel
78s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
19-10-2022 22:21
Behavioral task
behavioral1
Sample
4115-IOM-A-2021-03-26-1.pdf
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
4115-IOM-A-2021-03-26-1.pdf
Resource
win10v2004-20220901-en
General
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Target
4115-IOM-A-2021-03-26-1.pdf
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Size
4.4MB
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MD5
f517dc3bebcd742cc81574228bb80415
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SHA1
a4d45d9cbee820785fb0be50de5c5ca37fa0c9ca
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SHA256
98b91c431e7b568baa96649736e56958c994d78f7dbe34a99ee8735ddf00a822
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SHA512
3c7c608f88dae7211e71180acfd59f9219790af1b7a7fa97ef4a15394b424a4290df1903a84144e705680af1441e2c55061a0f64947f64ea1ed600fd10a4b85c
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SSDEEP
98304:LYv0IvFJd8mXU4AeLVVjGDsnuP3GLEMMsO0vqHSBvO9cYigFZsrR9+6ri:LY5FX7jASX1uPaE7sO0vqUPYNZsji
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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz AcroRd32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 AcroRd32.exe -
Processes:
AcroRd32.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes:
AcroRd32.exepid process 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
AcroRd32.exepid process 360 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
AcroRd32.exepid process 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe 360 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
AcroRd32.exeRdrCEF.exedescription pid process target process PID 360 wrote to memory of 2232 360 AcroRd32.exe RdrCEF.exe PID 360 wrote to memory of 2232 360 AcroRd32.exe RdrCEF.exe PID 360 wrote to memory of 2232 360 AcroRd32.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4880 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 RdrCEF.exe RdrCEF.exe PID 2232 wrote to memory of 4916 2232 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\4115-IOM-A-2021-03-26-1.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
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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
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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=BCDF3A7D5BA6B1AC63C9DC1F7EEEB12B --mojo-platform-channel-handle=1756 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵
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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=EBD71CEBD410B1F619203C1D61D81510 --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=1 --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=EBD71CEBD410B1F619203C1D61D81510 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:13⤵
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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=80F05935AD5D7331691423FED8098E9E --mojo-platform-channel-handle=2180 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵
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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=EC2288A0809B4007F7C5B69F78EB0582 --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=1 --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=EC2288A0809B4007F7C5B69F78EB0582 --renderer-client-id=5 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:13⤵
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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=7677B9E24861C91F73A70B3617F2F04B --mojo-platform-channel-handle=2428 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵
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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=968E7F219C36F01FA09DF16F1E4AF496 --mojo-platform-channel-handle=2260 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1664-145-0x0000000000000000-mapping.dmp
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memory/1816-150-0x0000000000000000-mapping.dmp
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memory/2224-142-0x0000000000000000-mapping.dmp
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memory/2232-132-0x0000000000000000-mapping.dmp
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memory/3592-153-0x0000000000000000-mapping.dmp
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memory/4880-134-0x0000000000000000-mapping.dmp
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memory/4916-137-0x0000000000000000-mapping.dmp