MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicative of a link farm. The ML classifier strongly flagged this PDF as malicious. The embedded JavaScript likely facilitates the redirection to these malicious sites, potentially for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://medvor.ru/uplcv?utm_term=dua+for+good+health+quotes PDF link annotation
- https://jgranit.pl/userfiles/file/53011953269.pdfIn PDF document text
- https://cissud.eu/uploads/ck_editor/files/rasadenavevuwojivefeguv.pdfIn PDF document text
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ed53dd7707---nevuj.pdfIn PDF document text
- http://shop-exclusive.cz/userfiles/file/68719890383.pdfIn PDF document text
- http://ibnuaffan.com/ckfinder/userfiles/files/25228177772.pdfIn PDF document text
- https://knoxvilleremembers.com/media/41193300294.pdfIn PDF document text
- http://powerfalcon.net/uppic/files/nokojidulale.pdfIn PDF document text
- http://www.pacautomarketing.com/file/rudagisorazudakabidi.pdfIn PDF document text
- http://farmina.ru/uploads/files/rezogokomevowetubesize.pdfIn PDF document text
- https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/b7aaf7116bff5f77472ea3697d3ee354/4184632997.pdfIn PDF document text
- http://24x7taazasamachar.com/assets/ckfinder/core/connector/php/uploads/files/96003403226.pdfIn PDF document text
- https://greenbins.ca/ckfinder/userfiles/files/mepufopomuritolisasov.pdfIn PDF document text
- http://3bbb.fr/ckeditor/upload/files/worolulimininopufipuxa.pdfIn PDF document text
- http://likuidart.com/files/ckeditor/files/46837399398.pdfIn PDF document text
- http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/st4s39hon4461jng0thngnf5te/71049523204.pdfIn PDF document text
- http://malerbetrieb-malanders.de/Webseite/pics/fotos/1/file/17204006293.pdfIn PDF document text
- http://myjobcareer.net/userfiles/file/2021091213214473499.pdfIn PDF document text
- http://jinshi66.com/uploadfiles/files/papakojaju.pdfIn PDF document text
- http://thietbiytedaibao.com/media/files/nomizukokezomu.pdfIn PDF document text
- http://belean.pl/userfiles/file/dilewiw.pdfIn PDF document text
- http://theheavent.com/userfiles/files/20357263710.pdfIn PDF document text
- http://kamerton.nl/clientfiles/45022899055.pdfIn PDF document text
- http://plovdivweek.com/app/templates/js/ckfinder/userfiles/files/liziza.pdfIn PDF document text
- https://simpangkanan.com/contents/files/xibegenixolomitufejotobur.pdfIn PDF document text
- http://titusauto.hu/kepek/file/60592255607.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_off0000b763.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB763 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cf75.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF75 | 19168 bytes |
SHA-256: c34eb948351d727f8302481cbebae666c2095bf5b1a25d9581143daac2e33485 |
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font_02_sfnt_off0001005f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1005F | 10684 bytes |
SHA-256: abbd694155f06a0b611202334852cd10d1a2f0caf3e7c670d6b49431fff3b18d |
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