MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, including one to a known malicious redirector, suggesting a phishing or malware distribution attempt. The document body text, though garbled, includes keywords related to medical guidelines and the redirector URL, indicating a lure. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs points towards an attempt to redirect users to malicious infrastructure.
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=american+heart+association+guidelines+for+dyslipidemia In PDF document text
- http://direbaka.ysk-chb.com/uploads/1/3/1/4/131406676/tamazemowesojimidal.pdfIn PDF document text
- http://wozofa.weirfarmartalliance.org/uploads/1/3/0/9/130969360/roxelufik_sexavalipi.pdfIn PDF document text
- http://xuralo.38plus2productions.com/uploads/1/3/1/3/131398177/nejuwisugobad.pdfIn PDF document text
- http://kawube.chevron.ie/uploads/1/3/0/7/130776021/joduvu_vubumufixaf.pdfIn PDF document text
- http://files.vanessaker.com/uploads/1/3/0/9/130969476/a1d7e0095a4.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/1/0433/7513/2824/files/wobekusanukunibidasos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2422/0321/files/antisocial_personality_disorders.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9952/9121/files/blame_the_night_song_mp4.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/3757/6603/files/brothers_grimm_spectaculathon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1335/5166/files/aha_2020_acls_guidelines.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9635/7530/files/8292064711.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/8559/8615/files/bioterrorism_articles.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6805/4940/files/adobe_photoshop_cs2_all_shortcut_keys.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8993/5003/files/formatting_on_discord.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7900/7384/files/download_file_using_download_manager_android.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3051/9716/files/28486848078.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7953/1673/files/allah_names_with_meaning.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000937a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x937A | 5540 bytes |
SHA-256: 629e3a3d451879c8d8c5fc4cdd1d7e1205265b10908cc356d402ce0840cf169c |
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font_01_sfnt_off0000a620.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA620 | 14408 bytes |
SHA-256: 661e1c034c60b1a7d146c9621db707a8c4932c2787b141c22ac6e0c9c655bab5 |
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font_02_sfnt_off0000d2ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2EC | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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