MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 https://chcial.ru/uplcv?utm_term=harbor+breeze+fan+remote+manual PDF link annotation
- http://www.sloepverhuur-debiesbosch.nl/upload/files/motule.pdfIn PDF document text
- http://kbcsisa.com/upload/fckeditor/file/61989326506.pdfIn PDF document text
- http://www.teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/wobukut.pdfIn PDF document text
- https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613180117dacf---59480080768.pdfIn PDF document text
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/459135c65b4c45e0c96307a5c1806228/zutirudeg.pdfIn PDF document text
- http://ore-processing.ru/d/files/457038431.pdfIn PDF document text
- http://lightofislamonair.org/uploads/files/16928104165.pdfIn PDF document text
- http://xn--dlek-5qa.com/admin/UserFiles/file/lobokuwodonepibedala.pdfIn PDF document text
- https://qkon.ca/images/file/88365367985.pdfIn PDF document text
- https://trongtrucsolution.com/uploads/files/benijefifebogatetevorer.pdfIn PDF document text
- https://solelane.com/ckfinder/userfiles/files/bopidaxizudafa.pdfIn PDF document text
- https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/d029078a996a7ae70d31ffb15440460a/73422848987.pdfIn PDF document text
- https://briljant-maleri.se/UserFiles/files/36191980876.pdfIn PDF document text
- https://poolpoint.be/uploads/file/92927242785.pdfIn PDF document text
- https://satybharat.com/ci/userfiles/files/420150719.pdfIn PDF document text
- https://viveironativodevicosa.com.br/ckfinder/userfiles/files/91369911180.pdfIn PDF document text
- http://crestviewshopping.abwingsmd.com/uploads/files/56117496520.pdfIn PDF document text
- http://rdmsrl.it/userfiles/files/59624627983.pdfIn PDF document text
- https://soudurelausiere.ca/upload/editor/file/56688538619.pdfIn PDF document text
- https://unique-u.biz/images/uploads/file/fifolexufexudaxenagoras.pdfIn PDF document text
- http://gaishachuukobuhin.com/js/upload/files/xalafef.pdfIn PDF document text
- https://daquin-ferriere.fr/userfiles/file/bakafusivanuwasenu.pdfIn PDF document text
- http://talesma.com/E/file/rapowasuretigixi.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cd78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD78 | 10404 bytes |
SHA-256: ae9fc754f3cccd5b70f91576b764b93313bb338d688ff26a877f7b939dafd6ce |
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font_01_sfnt_off0000e504.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE504 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fd16.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD16 | 17332 bytes |
SHA-256: 306c77254f49eb43ebabd72fc3337a31ef055d33ec357685789f939e114add39 |
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