MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous links to external websites, many of which are hosted on compromised WordPress installations or disposable domains, indicating a link farm designed to redirect users to malicious content. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests a phishing or trojan distribution attempt. While no scripts were explicitly extracted, the presence of PDF-specific heuristics like 'PDF_RANDOM_URL_LINK' and 'PDF_SEO_DISPOSABLE_LINK_FARM' points to a deliberate effort to obscure the final malicious destination.
Machine Learning
- Nyx PDF Classifier suspicious score 0.4208
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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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.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160a205f88909a---2801829760.pdf In PDF document text
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/i8rne3jtsu33n6une8qidkn4fi/62331109564.pdfIn PDF document text
- http://aelma.com/sites/default/userfiles/file/23977958229.pdfIn PDF document text
- http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af9c8dd2e7a---kezulugirag.pdfIn PDF document text
- https://la-klamm.org/Files/files/kipijokowiwoguv.pdfIn PDF document text
- http://fedime.org/imagenes/53145366467.pdfIn PDF document text
- http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16083b2d58c799---88356432235.pdfIn PDF document text
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074a8fe2d3bc---remanowiligixedoki.pdfIn PDF document text
- http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2b76c3168b---zagosivelejowixanawux.pdfIn PDF document text
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/5tbicoko29hmdcselbknnkvn04/kisemin.pdfIn PDF document text
- http://ardechetendancebrut.fr/userfiles/ardechetendancebrut.fr/file/31231007829.pdfIn PDF document text
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/7vjht9clg1jbv624glp4m39m03/jewepajoliwox.pdfIn PDF document text
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/d5799d18f2363f06a5094b9b956aa4ab/jisijebamegumejoxeso.pdfIn PDF document text
- http://tragiaocolamsapa.com/userfiles/image/file/punukuruxonuz.pdfIn PDF document text
- http://technoculture.cz/admin/upload/file/jixexu.pdfIn PDF document text
- http://rw-hse-businessconsulting.de/userfiles/file/17503416333.pdfIn PDF document text
- https://bauarch.bg/files/netovelarobef.pdfIn PDF document text
- http://riceart.ir/basefile/files/poxuwogigalore.pdfIn PDF document text
- http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160be6d9cb3963---65880239692.pdfIn PDF document text
- http://cl-metalparts.com/d/files/10815689660.pdfIn PDF document text
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608353483f134---lamewenifukuvutidu.pdfIn PDF document text
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/ugg134secbgncoljq87hovean0/16905515892.pdfIn PDF document text
- http://curry-box-deluxe.de/userfiles/file/13775322678.pdfIn PDF document text
- http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/3dd6e7a303488a99dd6ef0dda333a691/8394679138.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=coby+support+downloadPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eec9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEC9 | 18248 bytes |
SHA-256: 96986bdf5765bc58985f4d36535f617417369c0466a3b917bce6e358b4751ece |
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font_01_sfnt_off00011ee9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EE9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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