MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, identified by heuristics as a link farm pointing to compromised WordPress sites. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The embedded JavaScript likely facilitates the redirection to these malicious links, which in turn serve further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 7
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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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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://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/5v8iq2q9p6a6jpv2dmmbau3jdu/80882405704.pdf In PDF document text
- http://salsainkonstanz.de/media/files/jesavazigopoxuxosakab.pdfIn PDF document text
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16133dbae0a418---81210574983.pdfIn PDF document text
- http://ehlibeytalimleri.com/resimler/files/88701576566.pdfIn PDF document text
- https://menu2uplus.com/images/file/26222101565.pdfIn PDF document text
- https://isosklo.cz/uploads/venaf.pdfIn PDF document text
- https://sieuviet.net/webroot/img/files/90324044926.pdfIn PDF document text
- http://iamsong.vn/uploads/files/33261840101.pdfIn PDF document text
- http://smartdeal.pl/files/upload/files/mojujowunuborutavewatu.pdfIn PDF document text
- https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/1613fedc6d2332---67336196190.pdfIn PDF document text
- http://grandrosso.com/js/upload/files/16216680388.pdfIn PDF document text
- https://otterdisplay.com/userfiles/file/zubasufu.pdfIn PDF document text
- http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/16133a42577b4d---92838018460.pdfIn PDF document text
- http://artvideo74.ru/upfiles/files/mikigobutawisaxavugosodep.pdfIn PDF document text
- http://to-tuong.com/media/ckfinder/files/40619908926.pdfIn PDF document text
- http://purofirstli.com/userfiles/files/97117716610.pdfIn PDF document text
- http://sieuthibds.net/images/files/jalirojufuredewasaju.pdfIn PDF document text
- http://amphorabeautyclub.com/campannas/file/75944688313.pdfIn PDF document text
- http://alrehabourhome.com/userfiles/files/91583439491.pdfIn PDF document text
- https://ethnicminorities.heephong.org/ethnicminorities/cmsadmin/ckfinder/files/64609417050.pdfIn PDF document text
- http://chretkinia.pl/userfiles/file/doraruburariwukisopefitok.pdfIn PDF document text
- https://udruga-invalida.hr/files/20154387827.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=production+and+operations+management+mba+book+pdfPDF 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_off0000d67a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD67A | 11252 bytes |
SHA-256: 8b14bfd8a1ec7b05f69f0cdcea46c42725644578a974e083d4fd69c59b6d733e |
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font_01_sfnt_off0000f074.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF074 | 19176 bytes |
SHA-256: 4c502e1ac5dc8da7a5ba9692d3738159db8c549b750638ff3034812d5513fc05 |
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font_02_sfnt_off0001224f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1224F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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