Analysis
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max time kernel
292s -
max time network
288s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
30-05-2023 04:35
Behavioral task
behavioral1
Sample
About/About.pdf
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
About/About.pdf
Resource
win10v2004-20230220-en
Behavioral task
behavioral3
Sample
UpdatePack-KB971033-x64.exe
Resource
win7-20230220-en
Behavioral task
behavioral4
Sample
UpdatePack-KB971033-x64.exe
Resource
win10v2004-20230220-en
General
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Target
About/About.pdf
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Size
185KB
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MD5
f8e98d604f7c63275ee8739708345baf
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SHA1
218bb6ab3a6b4899c22ae798691c30acfe423a7c
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SHA256
dafccfc02c2ad502683ddf61224d6d66eba1e6d5ba13a92b15381af51bb4715a
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SHA512
05076043c463a3483cd6be000407ba6a5641413a4e0928b2ea1f6ab84bf2b1244c6737b221be7dc9db7a1ea8fc5ea2c34782307babe77916d33ae6cb19b6de05
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SSDEEP
3072:GdbzlBgmxq3pSxw8FE92HVePu0kiFRiNifT9hQfmRcUQ88k4YLs3L2yFAVxVRjKm:GdbvTq3Mk21GuUFENYTsmRcOoY46yFAV
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-1-5-21-2275444769-3691835758-4097679484-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes:
AcroRd32.exepid process 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
AcroRd32.exepid process 3768 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
AcroRd32.exepid process 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe 3768 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
AcroRd32.exeRdrCEF.exedescription pid process target process PID 3768 wrote to memory of 3028 3768 AcroRd32.exe RdrCEF.exe PID 3768 wrote to memory of 3028 3768 AcroRd32.exe RdrCEF.exe PID 3768 wrote to memory of 3028 3768 AcroRd32.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 2800 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 RdrCEF.exe RdrCEF.exe PID 3028 wrote to memory of 4896 3028 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\About\About.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:3768 -
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:3028 -
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=C72C5955D37A8A59580517BE554B6249 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:2800
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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=B4823F5B9AAD6FDBDC7EADFE0FD48AD0 --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=2 --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=B4823F5B9AAD6FDBDC7EADFE0FD48AD0 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:13⤵PID:4896
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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=C4663A265ED2BCBF8ED02DE6110DFF65 --mojo-platform-channel-handle=2312 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:320
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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=03412FC2332D1ED1CA94978760E0E17E --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=2 --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=03412FC2332D1ED1CA94978760E0E17E --renderer-client-id=5 --mojo-platform-channel-handle=1880 --allow-no-sandbox-job /prefetch:13⤵PID:4348
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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=60EF6F7787BA684C7A9731FC1AC6F937 --mojo-platform-channel-handle=2456 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:1800
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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=653B2F15D85C9D95353DB0D7003DB568 --mojo-platform-channel-handle=1856 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:4676
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C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:4580
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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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
64KB
MD5549dec5edbe6aef983a9946e37856678
SHA1c7b500f0a1494d93c5f0e18791e9d82b66051e7a
SHA256b5a121f6ba7a314d3c3a58091ea1b4937b57069f969b8129986e351c3a2f2a6f
SHA512eff03bd4cc9d3a2da6442244da323759c15b2d3f7a14c1dc1c315b439c4721d3b822a34d4cb623321692794fdb2803a2ce49d45d1652f6b9d7f933b25aa68059