MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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://crysiq.ru/uplcv?utm_term=you+are+truly+beautiful+quotes
- http://dinskayarealty.ru/media/file/temof.pdf
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a81e88ce99f---14213733914.pdf
- http://atut-biuro.com/uploaded/file/fukiwovosijovokepor.pdf
- http://webdulich.com/js/ckfinder/userfiles/files/44509348346.pdf
- https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/9d7b852d883dbee5b194c59fe6fce673/valalegufusekopulogexid.pdf
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/97a2d661ebe6f992db4ef9e3e4ebbe0b/13082949828.pdf
- https://businesslife.com/content/file/56410811445.pdf
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/e8d0052ec6ba77af8c2e4ec126109602/bivobavo.pdf
- https://rajakeempat.com/contents//files/59343608500.pdf
- http://woodwork.pl/ubezpiecz/obrazy/file/37007714802.pdf
- http://alarcon-v.com/editor_upload_image/file/23865437667.pdf
- https://radio-aurea.eu/files/file/mevopojegati.pdf
- https://lightspec.ca/wp-content/plugins/super-forms/uploads/php/files/d03ae604790f45aeeb227c811464c700/xalapov.pdf
- https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/3q2c9oommsgbp7nchkq07eri5l/pekawozanomiruxas.pdf
- https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/92d3238f239698e8ba2612625558c57e/dusefagoforagoba.pdf
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086d20603bef---90491359276.pdf
- https://chefinhogourmet.com/wp-content/plugins/super-forms/uploads/php/files/8db1a39bf178a6fb9de3f9002de0d409/xinefibug.pdf
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/160922a3b2670e---64153225834.pdf
- http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc98ab2a35---11169303195.pdf
- http://marcth.pl/media/fck/file/7275679088.pdf
- https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/1e69ed08a8c94ee1fa946aa4a6c29320/sebatusadit.pdf
- 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f908.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF908 | 16792 bytes |
font_01_sfnt_off0001111f.bin6715c759641931774974cf9292f36ca4401694a9c4878d2b1d10153b8d26c7f8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1111F | 10588 bytes |
font_02_sfnt_off0001297a.bin98e7b6335f3dd9b86d1e7353fb8d4a7f6b6308d8ccc32bf2f094a09cb471feb5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1297A | 17304 bytes |
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