Analysis
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max time kernel
147s -
max time network
156s -
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, 10:48
Behavioral task
behavioral1
Sample
b73b74fa803cde2f3f0cc26df916a3c8.pdf
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
b73b74fa803cde2f3f0cc26df916a3c8.pdf
Resource
win10v2004-20240226-en
General
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Target
b73b74fa803cde2f3f0cc26df916a3c8.pdf
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Size
103KB
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MD5
b73b74fa803cde2f3f0cc26df916a3c8
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SHA1
ccc9a4db3ce53f79dde427533f28baceb1bd80ab
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SHA256
78edc707f5ef6df823bafc46104b22726f2bc0ac0a2bf5d8eb593d364117c37f
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SHA512
3b4ba3e3d454ee7902c42a5f8087813afeac548bc52874784a95ee499bce32643f98806a86ec8fdfd45ff611d5bef868402b7bb7545cfe712e2e9b11c7da591a
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SSDEEP
3072:iGqNpCE5ArLYSr0qIYWCbU4RMs3GqJqlDg1U:EpCeArBeG5nQ
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-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
pid Process 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3508 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe 3508 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 3508 wrote to memory of 2676 3508 AcroRd32.exe 91 PID 3508 wrote to memory of 2676 3508 AcroRd32.exe 91 PID 3508 wrote to memory of 2676 3508 AcroRd32.exe 91 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 4908 2676 RdrCEF.exe 95 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96 PID 2676 wrote to memory of 1920 2676 RdrCEF.exe 96
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\b73b74fa803cde2f3f0cc26df916a3c8.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:3508 -
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:2676 -
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=EAAE44E4A34B9548DCE1C9D47571EA37 --mojo-platform-channel-handle=1736 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:4908
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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=3FBD6FE9A15F7E83B16DE7714EDD6397 --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=3FBD6FE9A15F7E83B16DE7714EDD6397 --renderer-client-id=2 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job /prefetch:13⤵PID:1920
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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=CC16EC4D37A338D86054C651496FD296 --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=CC16EC4D37A338D86054C651496FD296 --renderer-client-id=4 --mojo-platform-channel-handle=2160 --allow-no-sandbox-job /prefetch:13⤵PID:5012
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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=20A3AE2090BDD77EB38E49F1DDA13F8C --mojo-platform-channel-handle=2424 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:1296
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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=66623C951EDCC2CEBDF67231D392B040 --mojo-platform-channel-handle=2572 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:3596
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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=5CB35DBA837EAA7743EF9985AEE6F5D7 --mojo-platform-channel-handle=2684 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:3132
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
64KB
MD5034ae3aae52671cd209bcf897c27d356
SHA1ba0cc1ff0659da3546cd189a3072661a76be2b3f
SHA256e3a88c201d2d923024617406d591f1f224f34b3f8a6db3d57b821092724c2829
SHA51212d3c309f269adc83543b74389c436469eec9f740af72f3332fc5944047cbe81cce7baaef0db185adfeccb74dff56f2af916ba6564efb85f713f67e54a25b1fd
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Filesize
36KB
MD5b30d3becc8731792523d599d949e63f5
SHA119350257e42d7aee17fb3bf139a9d3adb330fad4
SHA256b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
SHA512523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
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Filesize
56KB
MD5752a1f26b18748311b691c7d8fc20633
SHA1c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA256111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
SHA512a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5