MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to numerous compromised WordPress sites, which in turn host other PDFs. This suggests a phishing or malware distribution campaign where the initial PDF serves as a lure to further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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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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://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076967e76af7---81715619834.pdf In PDF document text
- http://evergladesharvesting.com/ckfinder/userfiles/files/soxov.pdfIn PDF document text
- https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/85a0a72bf13cf3d1935b8e2bf19d6669/xotugiregen.pdfIn PDF document text
- http://ventilyatsia-v-sochi.ru/ckfinder/userfiles/files/laxinizezerepub.pdfIn PDF document text
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/03281bed5b5115a093656f9f297cedf8/vafor.pdfIn PDF document text
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/589b1b7fd12a8a4b03322cc816062361/wetawim.pdfIn PDF document text
- https://slide-bearing.com/d/files/75792665785.pdfIn PDF document text
- http://slp72.com/clients/7/7b/7b902bee17765b19ebdde6030f24742d/File/94195915908.pdfIn PDF document text
- http://xboxheerlen.nl/userfiles/file/wonuvitijukavatufaj.pdfIn PDF document text
- https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/a764334e3c375ab2dcec3deed3299366/wifagirasegake.pdfIn PDF document text
- https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/0m6dtefrsd3mgdv8kvgtkhimi7/mejizuwok.pdfIn PDF document text
- http://cokhihoangvinh.com/uploads/userfiles/file/zirirukotikomop.pdfIn PDF document text
- http://hillsdale66ersreunion.com/clients/c/c6/c679c52642bc64dd8629b98fb95ccc77/File/romajusilanolepome.pdfIn PDF document text
- http://xn--80aamdqpfpr.xn--p1ai/upload_picture/61866009261.pdfIn PDF document text
- http://daiquangsico.com/img_duhoc/files/66852152020.pdfIn PDF document text
- http://synagoge-stommeln.de/ckfinder/userfiles/files/xilumupi.pdfIn PDF document text
- http://viviapalermo.com/userfiles/files/1406471115.pdfIn PDF document text
- http://geometrarontani.it/userfiles/files/gufudej.pdfIn PDF document text
- http://latexindia.com/userfiles/file/wumukir.pdfIn PDF document text
- http://danieldesignpro.com/userfiles/71969521700.pdfIn PDF document text
- https://kangaroovietuc.vn/webroot/img/files/72868500530.pdfIn PDF document text
- http://joeun-it.com/userData/board/file/91978762948.pdfIn PDF document text
- http://murasakijr.com/uploads/files/zawexofejapevi.pdfIn PDF document text
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160949c5ccd71e---xofodu.pdfIn PDF document text
- https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/44201f47825a4c8ca690685696e7ced0/minozisakapobinudovu.pdfIn PDF document text
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/dlnmn5c3nlnomegf65lenk4pf1/48732939333.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=california+residential+lease+agreement+pdf+freePDF link annotation
- 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_off0000db45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB45 | 17980 bytes |
SHA-256: f95fc9aef723a2864e72fe468d05a33a8102709f3d57442e045b47cec9b60718 |
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font_01_sfnt_off00010a4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A4B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012262.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12262 | 10872 bytes |
SHA-256: 277480d28afd5d0d47ded38cb2018aa05a6a0d95b94fa5bbdbe0f725e9d26972 |
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