Malware Insights
The PDF contains embedded JavaScript, indicated by the PDF_JS heuristic, which is a common technique for executing malicious code within documents. The ML classifier strongly flagged this sample as malicious. The embedded JavaScript likely redirects to external URLs, as suggested by the numerous PDF_URI and EMBEDDED_URL findings, potentially leading to phishing sites or further malware downloads. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a large number of distinct hosts, suggesting a link farm designed to obscure the true destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 5
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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://silky.ae/images/bulk_images/files/rawuvipizux.pdf In PDF document text
- https://master.plus/wp-content/plugins/super-forms/uploads/php/files/73dbc703d4a647962afe8b9e82481bc8/60912065658.pdfIn PDF document text
- http://sh-songshi.com/admin/upimg/file///38464836541.pdfIn PDF document text
- http://basyapiemlak.com/yukleme_klasoru/userfiles/file/83372020699.pdfIn PDF document text
- http://salocchi.it/userfiles/files/dodadukabalijuzapivero.pdfIn PDF document text
- http://xn--eyt274i.com/upload/files/tibifepud.pdfIn PDF document text
- http://brenna-ski.pl/userfiles/file/kizutitozimalafuselamo.pdfIn PDF document text
- https://ecowaytechnologies.com/ckfinder/userfiles/files/2559039139.pdfIn PDF document text
- http://studiolorenzoni.eu/userfiles/files/lexegu.pdfIn PDF document text
- http://ozanatalan.com/iboard/includes/userfiles/files/zebajejumukakasoxurito.pdfIn PDF document text
- https://bikeid.net/ckfinder/userfiles/files/20929358285.pdfIn PDF document text
- http://chupanhnoithat.vn/upload/files/divujewapifegidilu.pdfIn PDF document text
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/161315f9f2865e---bavapurefuwamorazuwa.pdfIn PDF document text
- http://www.tractortools.cz/ckfinder/userfiles/files/85230503127.pdfIn PDF document text
- https://bursaphotofest.org/uploads/files/16372291851.pdfIn PDF document text
- http://srihemkuntsahibfgp.org/hemkunt/userfiles/file/60476154007.pdfIn PDF document text
- http://werkschoenenverkoop.nl/images/docman/files/94038266014.pdfIn PDF document text
- http://studiocariola.com/userfiles/files/tekenagosorulufikubifaf.pdfIn PDF document text
- https://cherrychile.cl/cherry/uploads/contenido/files/firelorovuginumediv.pdfIn PDF document text
- https://polnische-zaune.de/userfiles/file/42710526920.pdfIn PDF document text
- https://tommytest.dish1314.com/data/html_editor/files/38820618425.pdfIn PDF document text
- http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/11072464037.pdfIn PDF document text
- http://trunghungplastic.com/luutru/files/noxuzarusibefozewig.pdfIn PDF document text
- https://feedproxy.google.com/~r/Gsjc/~3/RC0zOYPQW8A/uplcv?utm_term=diff+between+annulment+and+divorcePDF 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_off0000e149.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE149 | 10860 bytes |
SHA-256: df23920b6588cf23b098430835b15ec1e143b9edc45340f82c8689b8133040ba |
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font_01_sfnt_off0000fa67.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA67 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011279.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11279 | 17676 bytes |
SHA-256: 9d22e84926f0363f75754530c73d57b39fb8dfab18fe62a7fe98896da7e30a3c |
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