Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
27-05-2024 17:28
Behavioral task
behavioral1
Sample
25_May_2024_eSign.pdf
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
25_May_2024_eSign.pdf
Resource
win10v2004-20240508-en
General
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Target
25_May_2024_eSign.pdf
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Size
26KB
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MD5
c517e38681504b9d34d983ffb7843a6f
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SHA1
7da6a5069594538125311fd78dca5ed2fc97ddaf
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SHA256
01a0ad038da6c728c0af955c5090948b925b9e89775d51297981200f19d9dbc3
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SHA512
85fce46a7afd886eb013d15de83bfce55cbb1b6f5371d45ccfffe33794101cdef7f0bb99683fc28ef9ea35438a33952735a43f179c3256890d295c29137ef74e
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SSDEEP
768:os97Xx55558GC6wFWZD4Z7C8WRKr0UIn65Gm:o+XxTXGWgQAGm
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-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
pid Process 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4088 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe 4088 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 4088 wrote to memory of 1660 4088 AcroRd32.exe 86 PID 4088 wrote to memory of 1660 4088 AcroRd32.exe 86 PID 4088 wrote to memory of 1660 4088 AcroRd32.exe 86 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1812 1660 RdrCEF.exe 87 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88 PID 1660 wrote to memory of 1200 1660 RdrCEF.exe 88
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\25_May_2024_eSign.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:4088 -
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:1660 -
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=DD53AC97ED7F3652D2C2D6156A18955A --mojo-platform-channel-handle=1744 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:1812
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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=DD4F9F2B3F4208091A16AFA23B88C0C7 --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=DD4F9F2B3F4208091A16AFA23B88C0C7 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:13⤵PID:1200
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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=2C99D1DC6C72DB0041F4A540C2EA82F4 --mojo-platform-channel-handle=2308 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:3340
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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=C9A292A0D38C9EB3006F77868F745C6A --mojo-platform-channel-handle=1852 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:4340
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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=ED1F845D758EAF2C7FB3E1AE6FAFBD9F --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=ED1F845D758EAF2C7FB3E1AE6FAFBD9F --renderer-client-id=6 --mojo-platform-channel-handle=2556 --allow-no-sandbox-job /prefetch:13⤵PID:2744
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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=8BD33CA0CDC7B5FECE0039524316D5E2 --mojo-platform-channel-handle=3020 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:4832
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C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:2024
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
64KB
MD5260d73fc4a5f94879d39d0d56255b6dd
SHA1d3ddcc240497f2b16594830dee358c1a01e1fa9a
SHA2568bff33c39adc623784c009aee9747e5579da85cb2b2466f0bdc7541d412c996e
SHA512c48fed3f3735d649b9a9d1241f09c09b0e255d423c3871dda561484dfef8622c3f9d7d55a7b6190ba4893a12d4b7e32e3bb6f1f47c52ec5467a1e6d2efe02d89
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Filesize
36KB
MD5b30d3becc8731792523d599d949e63f5
SHA119350257e42d7aee17fb3bf139a9d3adb330fad4
SHA256b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
SHA512523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
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Filesize
56KB
MD5752a1f26b18748311b691c7d8fc20633
SHA1c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA256111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
SHA512a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5