MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a link farm pointing to numerous compromised websites, indicating a likely attempt to lure users to malicious content. The ML classifier strongly flagged this PDF as malicious, and several heuristics identified it as a link farm on disposable or compromised hosting. No scripts were extracted, but the embedded URLs suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/93e759bc3519db667cb39b71854ea621/bubinida.pdf In PDF document text
- http://karinameal.ru/imgdish/files/sasovorekekera.pdfIn PDF document text
- http://naturallabs.fr/userfiles/file/3451680144.pdfIn PDF document text
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/160963669d82a5---dakoriponu.pdfIn PDF document text
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/801c0bc7cc490c9db5fccae8ef6d2c53/todugonizodemopizuguzubo.pdfIn PDF document text
- http://kuhomania.ru/ckfinder/userfiles/files/pugibivagapabinipisut.pdfIn PDF document text
- http://nyett.hk/uploads/news/files/depukin.pdfIn PDF document text
- http://caogenzhiben.com/filespath/files/20210803021238.pdfIn PDF document text
- http://geoodwierty.pl/files/file/pudewazirigupu.pdfIn PDF document text
- http://forma8.kz/ckfinder/userfiles/files/bekasisujurawugula.pdfIn PDF document text
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/6415e07540e6d73705e6413a3faebd39/jimumuvizofinujeteba.pdfIn PDF document text
- http://dongphuctqueen.com/upload/files/59460474364.pdfIn PDF document text
- https://conexkarvan.com/cache/fck_files/file/xetelodopiva.pdfIn PDF document text
- http://bafiti.com/sklep/userfiles/file/xolanuwijuluxoponofigifin.pdfIn PDF document text
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb6727e7d6e---gomemololofadog.pdfIn PDF document text
- https://viboot.com/ckfinder/userfiles/files/18882620621.pdfIn PDF document text
- http://zonazero.es/userfiles/file/debikisibawi.pdfIn PDF document text
- http://uptownchantilly.com/uploads/files/wisefetewesesanixupabuf.pdfIn PDF document text
- https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/d213a31797a96e1d3591f1746cbc4c80/49449068630.pdfIn PDF document text
- https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/1609d985aecf01---vejololonata.pdfIn PDF document text
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608ac3f448ed2---sodoserazogukiwaviz.pdfIn PDF document text
- http://ohdiabo.net/images/ckeditor/files/nipimipufukabegiwu.pdfIn PDF document text
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/pgr8c7dko9og5ditknf7qgkb4n/pegexasadugugemud.pdfIn PDF document text
- https://multimetrics.com/ckfinder/userfiles/files/47044742996.pdfIn PDF document text
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/a4eaa6050d308b94365cdb788510109d/tulilijoranuwiziz.pdfIn PDF document text
- https://bio86.net/fichiers/gevorofegime.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=the+merismos+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_off0000ed4c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED4C | 19180 bytes |
SHA-256: 018e28c532dada2f621f818955406b1b2c253859bfc77166b17699f630c5f45b |
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font_01_sfnt_off00011ecb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11ECB | 10316 bytes |
SHA-256: ac38523f1ad23e741402dd0a2d24575a38873861c9b43a47d34cc6097813a9cf |
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font_02_sfnt_off000135fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135FD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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