Analysis
-
max time kernel
147s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
05/03/2024, 11:52
Behavioral task
behavioral1
Sample
b4a28584b2c93466433dbdecb55239cc.pdf
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
b4a28584b2c93466433dbdecb55239cc.pdf
Resource
win10v2004-20240226-en
General
-
Target
b4a28584b2c93466433dbdecb55239cc.pdf
-
Size
87KB
-
MD5
b4a28584b2c93466433dbdecb55239cc
-
SHA1
053beefaff1ab09fc7c738f5359949bc9666bdae
-
SHA256
83e54929468a046836022f0b69efcf9da8506723057c528c94180b74e41a0e94
-
SHA512
a28ce58cd2033033d8e0c30431e8027782aef87f9e398ec352ca4ddee01c9d497a4a7612cd96ff35cfa4ebee003fef2937b1d5a8f09070616c5dae24cfb83327
-
SSDEEP
1536:Ofu0lpTY4sxlS09pc9GAwEiXxuznY8rB1Zkcp8rWOpOaZEWXg7WeruR:wu0liJlnc99w3LqBbqcaZDS8
Malware Config
Signatures
-
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-1-5-21-557049126-2506969350-2798870634-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
pid Process 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4804 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe 4804 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 4804 wrote to memory of 3980 4804 AcroRd32.exe 91 PID 4804 wrote to memory of 3980 4804 AcroRd32.exe 91 PID 4804 wrote to memory of 3980 4804 AcroRd32.exe 91 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 3704 3980 RdrCEF.exe 93 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94 PID 3980 wrote to memory of 4616 3980 RdrCEF.exe 94
Processes
-
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\b4a28584b2c93466433dbdecb55239cc.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:4804 -
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:3980 -
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=754014ED35547B32D95857698FDB0AEC --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:3704
-
-
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=C590BA3C40812D89422AFD6EBBB05CF2 --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=C590BA3C40812D89422AFD6EBBB05CF2 --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:13⤵PID:4616
-
-
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=036E60B4021268E2BBA29310194A2374 --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=036E60B4021268E2BBA29310194A2374 --renderer-client-id=4 --mojo-platform-channel-handle=2312 --allow-no-sandbox-job /prefetch:13⤵PID:4672
-
-
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=999ADB7C37646D603E64A10AD4295539 --mojo-platform-channel-handle=2364 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:2604
-
-
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=A29D8DCB8D149177C2AFAE8211CEBEA2 --mojo-platform-channel-handle=2456 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵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" --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=01296EFBD65B5AA432B09F540D0FEC5D --mojo-platform-channel-handle=2732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:2100
-
-
-
C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:4788
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
64KB
MD519915d111776937dae79c297e294378e
SHA1bb9138431d5deb4a2c3a7ebe7c7654ec9c2dded9
SHA25615bb7054637ff53ea288d53cfbea887a5d3e06f0eb1cab367a5fb0983b6a290a
SHA512c3bc894914d585be65538d531d00cb9fb6383aaa5b65773f2fe410ed4a5ba1dbfecc59def55313ae1382a085e4c0b76c00d86b55b6e4389308c46e717bf2d8f1
-
Filesize
36KB
MD5b30d3becc8731792523d599d949e63f5
SHA119350257e42d7aee17fb3bf139a9d3adb330fad4
SHA256b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
SHA512523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
-
Filesize
56KB
MD5752a1f26b18748311b691c7d8fc20633
SHA1c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA256111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
SHA512a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5