MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, pointing to numerous compromised WordPress sites hosting PDF files. These links are likely intended to lure users into downloading further malicious content or visiting phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
Heuristics 6
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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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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://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a0aa63b00b2---biwifadaramosapusagupasi.pdf
- https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/a98febb2545f1522d8c0495bce048a51/kovowuwefugevofeg.pdf
- https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/56896f6847b74e3675428b79452dccf7/98690579627.pdf
- https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/0569fe019da83c626e7f1866e76cd77b/bunifetonavefod.pdf
- http://akcjonariusz.com/UserFiles/file/98626752590.pdf
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/6cn01gm2436ilmd1hitpes2s5g/98050215565.pdf
- http://eko-inwest.eu/upload/file/75362407173.pdf
- https://www.masismarketing.com/wp-content/plugins/super-forms/uploads/php/files/64b7d2d340d0becbffdb4623c11b7c29/17363578537.pdf
- https://prokoncept.hu/admin/blogfck/image/file/78024688063.pdf
- http://hi-reid-solutions.com/wp-content/plugins/super-forms/uploads/php/files/6ad521bc56f1af5503434cabfead4b97/sevisar.pdf
- https://sinarwaja.com/account/files/30188058606.pdf
- https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/9afbd51a0c92c2e682b40688c8e62246/vudiwego.pdf
- https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079d79c411dc---19157671791.pdf
- https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082c92d2c3cc---wulazugevojewiraziv.pdf
- http://ldbell1965.net/clients/85689/File/letuzujufisijepux.pdf
- http://rubivina.com/Images_upload/files/36746360145.pdf
- https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/otk1k6p1o352t1ut8thmgtartj/zunuxelukexomase.pdf
- https://razvozka24.ru/wp-content/plugins/super-forms/uploads/php/files/42d8cf38461fe69d5711d90e6eea451e/vujigivukubusip.pdf
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071dfac761ae---vajoz.pdf
- https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/3a064e2ce5be2a633c8b23096b86792d/tolizibov.pdf
- https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/ov8p0bodd1vd4gm4jo6nnld5qa/vokazumoralefelet.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=to+come+back+one+word
- 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_off0000c1e7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC1E7 | 16792 bytes |
font_01_sfnt_off0000d9f9.bina8dfc5868aba985d3d0f50bcc06a99f561c4f140f3f149a6c8665518374bacd1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9F9 | 16580 bytes |
font_02_sfnt_off00010516.bin7981646ac9dce470ab6d9e0606fa214676e79a721f9389efac8d921cbfcf9c53 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10516 | 10408 bytes |
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