Analysis
- max time kernel
193s - max time network
205s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system - submitted
31/12/2023, 12:44
Behavioral task
behavioral1
Sample
3696febf2f37f221c1e20621ea488c76.pdf
Resource
win7-20231215-en
windows7-x64
2 signatures
150 seconds
Behavioral task
behavioral2
Sample
3696febf2f37f221c1e20621ea488c76.pdf
Resource
win10v2004-20231215-en
windows10-2004-x64
5 signatures
150 seconds
General
- Target 3696febf2f37f221c1e20621ea488c76.pdf
- Size 26KB
- Sample231231-pytfdsahcn
- SHA256 24dd4fcaf667c4ba016388d79142e40a842eba019a07e018fc27ad03b8596703
- MD5 3696febf2f37f221c1e20621ea488c76
- SHA1 7a992fe9227eb5d8e1e34ab6d1290f7b5420eb0a
- SHA512 438211770c4277e49239d27bcbac328dd56233a613f98eff342143c6924e1bf69e2d3ae00855276757613ee85275cb71b94201bc4386430a2ab129b5d8f30e7d
- SSDEEP 768:lgGzpD0mpAM7nCgBR7f0vTso7XUslEoXQxLhYM:2GF/pHZ27EuJABhYM
- MD5 SHA1 SHA512 SSDEEP
Score
1/10
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-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe - Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe 3500 AcroRd32.exe - Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 3500 wrote to memory of 4520 3500 AcroRd32.exe 92 PID 3500 wrote to memory of 4520 3500 AcroRd32.exe 92 PID 3500 wrote to memory of 4520 3500 AcroRd32.exe 92 PID 3500 wrote to memory of 4080 3500 AcroRd32.exe 100 PID 3500 wrote to memory of 4080 3500 AcroRd32.exe 100 PID 3500 wrote to memory of 4080 3500 AcroRd32.exe 100 PID 3500 wrote to memory of 2400 3500 AcroRd32.exe 102 PID 3500 wrote to memory of 2400 3500 AcroRd32.exe 102 PID 3500 wrote to memory of 2400 3500 AcroRd32.exe 102 PID 3500 wrote to memory of 740 3500 AcroRd32.exe 109 PID 3500 wrote to memory of 740 3500 AcroRd32.exe 109 PID 3500 wrote to memory of 740 3500 AcroRd32.exe 109 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 2144 2400 RdrCEF.exe 112 PID 2400 wrote to memory of 4956 2400 RdrCEF.exe 113 PID 2400 wrote to memory of 4956 2400 RdrCEF.exe 113 PID 2400 wrote to memory of 4956 2400 RdrCEF.exe 113 PID 2400 wrote to memory of 4956 2400 RdrCEF.exe 113 PID 2400 wrote to memory of 4956 2400 RdrCEF.exe 113 PID 2400 wrote to memory of 4956 2400 RdrCEF.exe 113 PID 2400 wrote to memory of 4956 2400 RdrCEF.exe 113 PID 2400 wrote to memory of 4956 2400 RdrCEF.exe 113 PID 2400 wrote to memory of 4956 2400 RdrCEF.exe 113 PID 2400 wrote to memory of 4956 2400 RdrCEF.exe 113 PID 2400 wrote to memory of 4956 2400 RdrCEF.exe 113
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\3696febf2f37f221c1e20621ea488c76.pdf"1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3500 -
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:4520
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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:4080
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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:2400 -
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=182B0AAB7721F2BA10573DDA98C7FDEC --mojo-platform-channel-handle=1712 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:2144
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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=93AE06BB32A1295385D3BE67866B16B7 --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=93AE06BB32A1295385D3BE67866B16B7 --renderer-client-id=2 --mojo-platform-channel-handle=1724 --allow-no-sandbox-job /prefetch:13⤵PID:4956
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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=C8D3139F0464A4D515AF991DF3D1FECE --mojo-platform-channel-handle=2272 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:1356
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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:740
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
- Size 56KB
- SHA256 111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
- MD5 752a1f26b18748311b691c7d8fc20633
- SHA1 c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
- SHA512 a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5
- SSDEEP 192:wedRBvVrThe4p4/KhTB4p4CitZtkZsLRGVDbw6H3ph+v3YQa9:weZdThkKhBvkZsLRGlzh+vS9
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
- Size 36KB
- SHA256 b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
- MD5 b30d3becc8731792523d599d949e63f5
- SHA1 19350257e42d7aee17fb3bf139a9d3adb330fad4
- SHA512 523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
- SSDEEP 24:TLiXlzkrFsgIFsxX3pALXmnHpkDGjmcxBSkomXk+2m9RFTsyg+wmf9Mzm+Zs3tGl:TqlmFTIF3XmHjBoGGR+jMz+LhT
- MD5 SHA1 SHA512 SSDEEP