MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm for SEO manipulation or malware distribution. The ML classifier strongly indicated maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a phishing or redirection attack, likely initiated via a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 5
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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://smidgel.ru/uplcv?utm_term=pc+games+on+android+tablet PDF link annotation
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16139eb755f84e---92896926910.pdfIn PDF document text
- https://artinterior.bg/userfiles/file/zigaxufogofupotagem.pdfIn PDF document text
- https://safrano.pl/userfiles/file/18061914488.pdfIn PDF document text
- https://interstudy.net/userfiles/file/82022347618.pdfIn PDF document text
- https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/015c9519f67d404006665168a397d155/17463192082.pdfIn PDF document text
- http://domoticasociale.it/immaginiNewsletter/file/powapivejalebum.pdfIn PDF document text
- http://www.hermosabeachbungalows.com/userfiles/files/73894487783.pdfIn PDF document text
- https://edenestates.com/ckfinder/userfiles/files/24775582999.pdfIn PDF document text
- http://studiotecnicopinto.it/userfiles/files/73614411254.pdfIn PDF document text
- http://standardamulet.com/files/files/625592569.pdfIn PDF document text
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16131833658c34---puxonatipowelumanabek.pdfIn PDF document text
- https://ikansambel.com/contents/files/fugop.pdfIn PDF document text
- https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/5u3p37cokd1vo8sdghuqrphsv3/korovinapom.pdfIn PDF document text
- https://ascii.tn/web/cgi/file/lixapewotesujafo.pdfIn PDF document text
- http://koryosushi.com/uploads/files/32724003872.pdfIn PDF document text
- http://areawifi.com/DESARROLLO/userfiles/files/49946987586.pdfIn PDF document text
- https://polandpools.com/contents/files/mezediguvod.pdfIn PDF document text
- http://eskuvotoszkanaban.hu/editor_up/wudugexevinodo.pdfIn PDF document text
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16142ba345e07d---moven.pdfIn PDF document text
- http://vtaky.sk/media/file/rutabazi.pdfIn PDF document text
- http://bibrka-school.org.ua/ckfinder/userfiles/files/48609991281.pdfIn PDF document text
- http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/161371a53e05cc---dodofuwitijo.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_off0000b507.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB507 | 16520 bytes |
SHA-256: 0a5cfff46f841adcd57f96f193ba9bd7a14ab6a909852bb213cddbb8f32784e2 |
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font_01_sfnt_off0000df3c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF3C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f753.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF753 | 10852 bytes |
SHA-256: b3430c22c883d8d25dd96d6bd1a83ab95ac5ce912f95f65bd8ea439da7873cc0 |
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