MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to an SEO redirector, which in turn points to a malicious URL. This indicates a phishing or malware distribution attempt, likely using a lure related to academic content. The ML classifier strongly supports the malicious verdict. No scripts were extracted, but the embedded links are the primary indicators of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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://ttraff.ru/pify?keyword=green+function+wave+equation+pdf In PDF document text
- http://files.stoneycreekuniquedecor.com/uploads/1/3/1/3/131380042/9939549.pdfIn PDF document text
- http://files.eliteheatbuffalo.com/uploads/1/3/0/7/130775441/medinagap.pdfIn PDF document text
- http://files.donnasdressshop.com/uploads/1/3/2/6/132681448/8a813488ee.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0440/7102/6853/files/bill_bennett_about_donald_trump.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2626/7816/files/kimonepafijuxevaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9007/6057/files/15130312268.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3237/0584/files/19552307969.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2768/4760/files/58806993169.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96951977507.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/9533/0717/files/eastern_shore_craigslist.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6409/8970/files/zaverum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9262/3001/files/non_alcoholic_cocktail_recipes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8095/6569/files/61375575906.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2285/9944/files/lidesugaxulasivorebi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4410/8445/files/57903911322.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://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c5b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC5B5 | 5132 bytes |
SHA-256: 259dc60374146335f8d824e3ee3dc0a396e7c5abf7a9b4f775bc5cf4161029ed |
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font_01_sfnt_off0000d74b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD74B | 17380 bytes |
SHA-256: 8a061b8e4d513f03000a7fc0f53e8394466570c963f05ea54d0286a42f0a749d |
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font_02_sfnt_off00010e82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E82 | 16568 bytes |
SHA-256: 673d3c2f0ea3cbb1d6a4204814925bc997278801dc679c6b567be6cc9b49a1b9 |
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font_03_sfnt_off0001257c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1257C | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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