MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a link farm pointing to numerous other PDF files hosted on compromised websites, as indicated by the 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics. The ML classifier also flagged this PDF as malicious with high confidence. The primary purpose appears to be SEO manipulation or hosting malicious content via these external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 http://valleypainclinic.org/userfiles/file/muxusokine.pdf In PDF document text
- http://i-p-p-c.com/ckfinder/userfiles/files/kexow.pdfIn PDF document text
- http://matchedtubes.de/userfiles/file/42057201073.pdfIn PDF document text
- https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/pdp86het2is3q3cjvar5mgvpkp/botawilawi.pdfIn PDF document text
- http://riverla.vn/uploads/userfiles/file/27916302590.pdfIn PDF document text
- https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/740cc6863056b15761d2f863af4b6719/raxogefumuw.pdfIn PDF document text
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/639fe6b423e5cae77ba5d79df8ead87f/77987414997.pdfIn PDF document text
- http://canxetaidientu.com/images/file/95977494148.pdfIn PDF document text
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/9d51ae303f05480fdb44bcbaf6fbdc6a/tokorewazotulezuleg.pdfIn PDF document text
- https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/ap8q4e28r0purqe8hbclkj6une/kiwelu.pdfIn PDF document text
- https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/dkeba5tmtgt012n37ttnntmi8c/98139501911.pdfIn PDF document text
- http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/160ce323d510ec---82695044709.pdfIn PDF document text
- https://skvely-kup.cz/files/file/tatidikekaludukaguwulizoj.pdfIn PDF document text
- https://bachson.net/upload/file/bunewenezevelimer.pdfIn PDF document text
- https://hglobaltourb2c.com/FileData/ckfinder/files/20210614_D2E61B505D34AFC7.pdfIn PDF document text
- http://teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/39420129664.pdfIn PDF document text
- https://coffotea.com/uploads/files/202108141746034553.pdfIn PDF document text
- https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/b1776aa5d28592f4ce742d32005d71f1/1099099275.pdfIn PDF document text
- https://dollarplus98.com/images/upload/files/15418151606.pdfIn PDF document text
- http://0-50.ru/userfiles/file/wefujuzite.pdfIn PDF document text
- http://www.dilipprabhavalkar.com/images/file/10252001536.pdfIn PDF document text
- http://akinmedikal.com/uploads/file/supitolujovoxiko.pdfIn PDF document text
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fdb7c00ab80---kanivejevibij.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=marriage+biodata+format+pdf+simplePDF 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_off0000e944.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE944 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010156.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10156 | 17636 bytes |
SHA-256: a9ffd72917316b812a8f9edce6ed462fa83b8ae2d1bd5333df079ccd860c5968 |
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font_02_sfnt_off00012efb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EFB | 10868 bytes |
SHA-256: d67bf99e970852b0afb67790c6284a46138ad7610f84d5849fd5fe1ff387e596 |
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