MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains multiple embedded links, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be the same as the one identified by the heuristic. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to attract victims. The ML classifier strongly flagged this PDF as malicious.
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.cc/pify?keyword=diabetes+mellitus+ada+2020+pdf+espa%25C3%25B1ol In PDF document text
- http://files.deschutesriverlavender.com/uploads/1/3/0/7/130776265/kofiw.pdfIn PDF document text
- http://files.61percent.uk/uploads/1/3/1/3/131398145/fiseporozeju-jujivaruwovuta.pdfIn PDF document text
- http://xivav.juneberrycottage.com/uploads/1/3/0/7/130738970/f24530ce87477f.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/1/0433/2499/7800/files/88825820145.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2897/0647/files/jnv_class_6th_admission_form.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9024/6822/files/best_website_to_download_free_ebooks.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8326/7234/files/98893590757.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0770/3201/files/22060111354.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3459/0878/files/cancer_de_estomago_en_colombia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7742/7609/files/53414282452.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9159/0308/files/benim_hocam_eitim_bilimleri_deneme.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0683/5358/files/63945955680.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0027/2792/files/talk_like_ted_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2758/5430/files/categorical_data_analysis_for_the_behavioral_and_social_sciences.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6997/1363/files/catalysis_nptel.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000605a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x605A | 6416 bytes |
SHA-256: 2a69545f8a9d104697b847a0f548493cbc920d2d91a2c508c9ca03512f8941e1 |
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font_01_sfnt_off00007024.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7024 | 5716 bytes |
SHA-256: 4eb19132b235f2a26b2006f4922180e447e1e49111cca164f742ab4703680ee2 |
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font_02_sfnt_off00008349.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8349 | 10956 bytes |
SHA-256: 7bc1233552fe3dc9499d7e6f149f21895ce3fae820125978a5cd834a807eca0c |
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