MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or malware distribution attempt. The document contains numerous links pointing to compromised WordPress upload storage and other disposable hosting sites, suggesting it acts as a link farm to redirect users to malicious content. The presence of external URIs and link farms strongly suggests an attempt to lure users to external, potentially malicious, websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://oniceh.ru/uplcv?utm_term=manuel+visuel+de+psychologie+clinique+et+psychopathologie+pdf PDF link annotation
- https://mkserwis.pl/userfiles/file/34856341024.pdfIn PDF document text
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/160722f9e5b2fb---14707170791.pdfIn PDF document text
- https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/287eeb68dbfc8da3f91228828a9b19b1/92300164133.pdfIn PDF document text
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/160868e6e2f3c5---medapanurageferoz.pdfIn PDF document text
- http://gemculture.com/userfiles/file/25146965622.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8a5c7885cf---vajomivefolipi.pdfIn PDF document text
- http://bijverhoeven.nl/uploads/files/69498582321.pdfIn PDF document text
- http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160846fbda73c4---xofarebadozipamuwegexu.pdfIn PDF document text
- http://multi-accueil.fr/ressource/site-image/files/79165377627.pdfIn PDF document text
- http://phuocthuan.vn/images/pic/file/87496030503.pdfIn PDF document text
- http://www.injamal.es/nueva/ckfinder/userfiles/files/tokazenureken.pdfIn PDF document text
- https://digireg.org/upload/6511813382.pdfIn PDF document text
- http://brucemsmithlaw.com/clients/e/e2/e252bfde01ef004f685a9648d307a4b9/File/98040556883.pdfIn PDF document text
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609f5676dfa5b---mopenamenebade.pdfIn PDF document text
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b8278434af3---7952412252.pdfIn PDF document text
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/16084bfd822e69---86626850087.pdfIn PDF document text
- http://bogaarchitetti.it/userfiles/files/fanekabagonojuvikojo.pdfIn PDF document text
- https://stratasphere.online/userfiles/file/56288025585.pdfIn PDF document text
- http://paolacaone.eu/userfiles/files/difomogepesomuxawoviti.pdfIn PDF document text
- https://msr-hudsonproperties.com/wp-content/plugins/super-forms/uploads/php/files/9fc989e292da1ff78af7a0f426aa6c6f/93945308540.pdfIn PDF document text
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/160824d34e0f69---2461075427.pdfIn PDF document text
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/43413a356ec66426f7fc2edf9324e344/98040061334.pdfIn PDF document text
- https://briljant-maleri.se/UserFiles/files/lemizefavo.pdfIn PDF document text
- http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/jb43iukcueerua9n7plrbjvt56/39102040096.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_off0000e13d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE13D | 11216 bytes |
SHA-256: 0521f9b32040336c2532650890be94e9cc227881bdafa7b1cc1806bba94fff82 |
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font_01_sfnt_off0000faf3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAF3 | 20080 bytes |
SHA-256: a50ee35fbd21584349a293e5c19e4658c3eebf76b7d4006d3efaf203ca38d34b |
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font_02_sfnt_off00012d57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D57 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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