MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF document that employs a social-engineering lure to prompt the user to install a browser extension or update. This heuristic, combined with ML classification and ClamAV detection, strongly suggests a phishing or malware distribution attempt. While no scripts were directly extracted, the PDF structure and embedded URLs indicate a malicious intent to redirect users to potentially compromised sites for further payload delivery or credential harvesting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9777
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/t6jk688uop3j13rsvsvda7nt8i/vemuvufasep.pdf
- https://webmenuplus.com/images/file/netulu.pdf
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16081aadddddab---73332780883.pdf
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089c24d3030f---xinuri.pdf
- http://komputerzagrosze.pl/userfiles/file/76320106744.pdf
- http://firanywiktoria.pl/uploads/editor/file/rolenuzazavenatuvobofa.pdf
- http://dilimkebab.com/userfiles/file/37146181468.pdf
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/mss0k1fphk04aqemluh571m26j/15799773939.pdf
- http://crystalsteakandstogie.com/clients/1/1d/1dbb6d5698303b6304ae84622e226a19/File/lopujujubi.pdf
- http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/54841228040.pdf
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160accbb7ee50e---jakolejorikuwebusogexekab.pdf
- https://matrainagycsalados.hu/userfiles/file/mitalugorigam.pdf
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/c7cbcf17e9094058cb524ccfce0d452a/wunomezurolonabogotu.pdf
- https://bitree.com/ckfinder/userfiles/files/sajivumapoxivota.pdf
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bac91c865e7---83169125807.pdf
- http://mwflower.com/upimagesfile///39155398778.pdf
- http://funagamex.vn/PhuongNamGroup/userfiles/files/gigalerireza.pdf
- http://karpatskiles.ru/store/files/jikofakexizodimeg.pdf
- http://kkpump.com/FileData/ckfinder/files/20210616_D446A1B18723FA15.pdf
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16097f8b95967b---zavuluduxolagikizo.pdf
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/75870c551627e4e19072eaa183bbd33d/zonilanobelewurelobo.pdf
- https://healthmatters.me/userfiles/file/sabor.pdf
- http://wildpflanzen-planung.de/file/rukejuvavavufox.pdf
- http://indianaquesters.org/clients/9/95/9573c8d6e108c9729a37356986dd5b5e/File/gamejofumetisafa.pdf
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/c6c6ac86865068de215153b5318e278e/3508324499.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=customer+focus+performance+review+phrases
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0003235b.binfdc3f250e16d4eeaac0151c08e1678493ac6cc67090af3137bc700c4cd553891 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x3235B | 16348 bytes |
font_01_sfnt_off000339b2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x339B2 | 16792 bytes |
font_02_sfnt_off000351c9.bind6387d74bc277316c59a9afefecbb3bd64fb6ce4dcfb8d994cf44c69a455c9c7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x351C9 | 10980 bytes |
font_03_sfnt_off00036b3b.bin13e49b90a99fb1d56b6f08e9d0de1723deff52551c42c7180970ac06a9a45593 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x36B3B | 17560 bytes |
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