MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of links to external resources, many of which are hosted on domains associated with SEO link farms and redirectors. The primary redirector URL, https://ttraff.com/pify?keyword=cardiovascular+system+physiology+notes+pdf, is identified as malicious. This suggests the file is part of a campaign to drive traffic to malicious sites, likely for phishing or distributing further malware. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.
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.com/pify?keyword=cardiovascular+system+physiology+notes+pdf In PDF document text
- http://futuwig.johnanthonyguitars.com/uploads/1/3/0/8/130874197/lejoruzubidamonu.pdfIn PDF document text
- http://files.nadinefletcher.com/uploads/1/3/1/0/131071043/384edb6.pdfIn PDF document text
- http://files.codeblaque.com/uploads/1/3/1/3/131384101/wokepudozuwizodu.pdfIn PDF document text
- http://files.top50pikeseries.ca/uploads/1/3/0/7/130775645/jasavirejenedat.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/1/0432/9911/1070/files/inorganic_chemistry_principles_of_structure_and_reactivity_4th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4251/2802/files/pewefitemuvukumutuniwaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0802/2938/files/argala_stotram_malayalam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3462/3643/files/fimelebogaxolebo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7523/2153/files/47416975100.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4136/4890/files/17373277302.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6332/8411/files/jizegopenemixet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7351/9269/files/635577497.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3529/5905/files/air_pollution_control_a_design_approach_cooper.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6868/5464/files/firinidarazavel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5267/9836/files/borimamobibomi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7946/7170/files/blood_cancer_negative_report.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8442/1022/files/craftsman_lawn_tractor_repair_manual.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c59c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC59C | 5636 bytes |
SHA-256: d75337a68b1a70841f7e0912c1e726c8450603dd5c06725bdc89b069147d98e3 |
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font_01_sfnt_off0000d8ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8AE | 12692 bytes |
SHA-256: aec52fc7a5a5e3a393e265b860d39f5343bcb1614d1be33ad57d307773b89102 |
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font_02_sfnt_off0001014d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1014D | 16192 bytes |
SHA-256: 2fbb528c30fae61c70ff4082faa5fece981988df10abad1a91cab371b780b9de |
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