MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs that point to various domains, many of which appear to be compromised or disposable hosting. Heuristics indicate this is a link farm designed to direct users to external sites, likely for phishing or SEO abuse. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9950
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 https://infrive.ru/uplcv?utm_term=como+hallar+el+area+y+perimetro+de+un+triangulo+equilatero PDF link annotation
- http://smart.sut.ac.th/tsme/src/lib/ckfinder/userfiles/files/85338440147.pdfIn PDF document text
- https://eagleegg5k.com/ckfinder/triplebuserfiles/file/negetoxixiv.pdfIn PDF document text
- http://tasfor.com/files/galeria/files/tesusokazixifitifaniv.pdfIn PDF document text
- http://dreamcatcherltd.com/userfiles/file/fosapu.pdfIn PDF document text
- http://topenglish.sk/app/webroot/gallery/files/kipoleximeb.pdfIn PDF document text
- http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16144b0dd267ad---musoxofemepago.pdfIn PDF document text
- http://officinedesign.it/userfiles/files/94643031869.pdfIn PDF document text
- https://ssmavidiyar.com/public/content-images/files/95711344207.pdfIn PDF document text
- http://gt-outillages.fr/ressource/site-image/files/maxegizegipazunekikuki.pdfIn PDF document text
- https://korvioinfotech.com/ckfinder/userfiles/files/12509794678.pdfIn PDF document text
- https://dwitunggaljaya.com/sitefiles/file/monexawovazawemuwibasokik.pdfIn PDF document text
- http://twinmd.ru/userfiles/file/webimelamadisogevem.pdfIn PDF document text
- http://naturestuff.nl/siteimages/file/39861156401.pdfIn PDF document text
- http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/161302f127063d---zibolibaduxovijutaviwu.pdfIn PDF document text
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161699984c7215---fobewekawirijokowe.pdfIn PDF document text
- http://djk-winkel.de/images/uploads/file/72724068802.pdfIn PDF document text
- http://ghettaetamionarchitetti.it/userfiles/files/pivisijowekuzofokibulam.pdfIn PDF document text
- https://bibonatura.com/ckfinder/userfiles/files/17297312165.pdfIn PDF document text
- http://dungcumaymoc.com/Images_upload/files/3220313367.pdfIn PDF document text
- https://excellencetogether.com/img/files/file/14608093297.pdfIn PDF document text
- http://claudiamelchior.it/images/file/84585891278.pdfIn PDF document text
- https://shiokuda2.com/contents/files/dojodaramegijajapopidu.pdfIn PDF document text
- http://hiro-seiko.com/upload/files/dukonejajerar.pdfIn PDF document text
- http://aroma-es.site/yamituki-n/uploads/files/77577721261.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_off0000cf3c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF3C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e753.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE753 | 11060 bytes |
SHA-256: 96072abd41c858a5277c65961e2e93d34fedcff309ca57291ac715e80d70a635 |
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font_02_sfnt_off00010055.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10055 | 20204 bytes |
SHA-256: 2bff2d663419570ddb34060c17bc87437915b7e7a30d432157251b83193167cd |
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