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Analysis
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max time kernel
160s -
max time network
169s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
10/01/2024, 22:09
Behavioral task
behavioral1
Sample
51bfaf63c521911d5076a834a7058908.pdf
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
51bfaf63c521911d5076a834a7058908.pdf
Resource
win10v2004-20231215-en
General
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Target
51bfaf63c521911d5076a834a7058908.pdf
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Size
85KB
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MD5
51bfaf63c521911d5076a834a7058908
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SHA1
9a073d6aaee3a83a5e4a56c5a7a7debc40bb64e5
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SHA256
d9b27db18daba5a13c3ec1192367fe048ddd761b63548c16cf6897392ed435e4
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SHA512
eb68a517f80e09660b20e4b301fa86f2f3da8d81c25f2a17a518688898e899777e73a031567b8cf92d7744c4d5bfd595e33c01099daf194fa07fd2a1b5415c3f
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SSDEEP
1536:rv/I+S8o6oGKVRffiKhOiuA0NPYQFT/LwyrHJu4vcKsihWoTrefst7nJqZRgsZWM:C8o6VGHioOiunBYQNLwyT5UWHnVnJq7d
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-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2516 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe 2516 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 2516 wrote to memory of 224 2516 AcroRd32.exe 103 PID 2516 wrote to memory of 224 2516 AcroRd32.exe 103 PID 2516 wrote to memory of 224 2516 AcroRd32.exe 103 PID 2516 wrote to memory of 2600 2516 AcroRd32.exe 104 PID 2516 wrote to memory of 2600 2516 AcroRd32.exe 104 PID 2516 wrote to memory of 2600 2516 AcroRd32.exe 104 PID 2516 wrote to memory of 4592 2516 AcroRd32.exe 105 PID 2516 wrote to memory of 4592 2516 AcroRd32.exe 105 PID 2516 wrote to memory of 4592 2516 AcroRd32.exe 105 PID 2516 wrote to memory of 1044 2516 AcroRd32.exe 106 PID 2516 wrote to memory of 1044 2516 AcroRd32.exe 106 PID 2516 wrote to memory of 1044 2516 AcroRd32.exe 106 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 396 4592 RdrCEF.exe 110 PID 4592 wrote to memory of 1936 4592 RdrCEF.exe 111 PID 4592 wrote to memory of 1936 4592 RdrCEF.exe 111 PID 4592 wrote to memory of 1936 4592 RdrCEF.exe 111 PID 4592 wrote to memory of 1936 4592 RdrCEF.exe 111 PID 4592 wrote to memory of 1936 4592 RdrCEF.exe 111 PID 4592 wrote to memory of 1936 4592 RdrCEF.exe 111 PID 4592 wrote to memory of 1936 4592 RdrCEF.exe 111 PID 4592 wrote to memory of 1936 4592 RdrCEF.exe 111 PID 4592 wrote to memory of 1936 4592 RdrCEF.exe 111 PID 4592 wrote to memory of 1936 4592 RdrCEF.exe 111 PID 4592 wrote to memory of 1936 4592 RdrCEF.exe 111
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\51bfaf63c521911d5076a834a7058908.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:2516 -
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⤵PID:224
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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⤵PID:2600
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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
PID:4592 -
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=D953D9C723647B59A3D77638BD83C249 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:396
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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=A89DA006CE875A5DFB79DD43277DDCBF --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=A89DA006CE875A5DFB79DD43277DDCBF --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:13⤵PID:1936
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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⤵PID:1044
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C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:4352
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
36KB
MD5b30d3becc8731792523d599d949e63f5
SHA119350257e42d7aee17fb3bf139a9d3adb330fad4
SHA256b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
SHA512523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
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Filesize
56KB
MD5752a1f26b18748311b691c7d8fc20633
SHA1c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA256111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
SHA512a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5