MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple links pointing to a redirector URL, which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and benign-looking PDF filenames, suggesting a link farm or SEO abuse tactic to disguise malicious content. The ML classifier strongly indicates maliciousness, and the presence of redirector links points to a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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.cc/wb?keyword=jumbled%20sentences%20worksheets%20grade%2010 In PDF document text
- http://files.jessesclassics.com/uploads/1/3/1/3/131384335/2164164.pdfIn PDF document text
- http://files.vicenzas-crostoli.com/uploads/1/3/1/4/131483253/9062675.pdfIn PDF document text
- http://files.drickahair.com/uploads/1/3/1/4/131438658/6269460.pdfIn PDF document text
- http://files.nicoleedwardsauthor.com/uploads/1/3/2/6/132680822/3230355.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6572/9429/files/15644856374.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/febipak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0662/3903/files/beginners_guide_to_real_estate_investing.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/8138/8452/files/pig_latin_converter.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1036/5339/files/management_schermerhorn_12th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3910/4917/files/kejafuxutib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/basugogigarerebid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0065/1158/files/formato_de_certificado_medico_de_farmacias_similares.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6719/4021/files/4162004328.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4160/2198/files/74557676171.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1112/1063/files/xurubeg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1465/8980/files/5672490985.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5743/0176/files/javascript_split_array_into_chunks.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5533/0981/files/agroforestry_lecture_notes.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005d68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D68 | 5832 bytes |
SHA-256: c3d74f2fefa9ae90d96ff7c822ad2b82616ef72c6edc83e41e4687e0578fd2de |
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font_01_sfnt_off00007125.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7125 | 10160 bytes |
SHA-256: 3745fdac652ac6ada816a39c8d2397655a3fb7c11a26aaa46c17a302d593d547 |
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