MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a prominent link disguised as a free textbook download, which is a common social engineering tactic. This link, 'https://ttraff.cc/pify?keyword=calculus+11th+edition+larson+and+edwards+free+pdf', redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The PDF also contains a large number of external links, suggesting a link farm for SEO manipulation or to distribute malicious content, as flagged by PDF_SEO_LINK_FARM. No scripts were extracted, but the primary attack vector is the malicious redirector link.
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=calculus+11th+edition+larson+and+edwards+free+pdf In PDF document text
- http://files.keyvisioncoaching.com/uploads/1/3/2/8/132814250/dinunigudet.pdfIn PDF document text
- http://mafapol.butterflybondage.com/uploads/1/3/1/4/131483200/7850687.pdfIn PDF document text
- http://files.ontheroadarizona.com/uploads/1/3/0/8/130813526/lazomaju.pdfIn PDF document text
- http://files.olddominionhoundsponyclub.com/uploads/1/3/1/4/131438226/vowejavofe_ruvewo_gureguxelila_robodegupazog.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/1/0428/9835/8432/files/juzopuzenafososokazulu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0327/3628/files/16933657589.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4964/7261/files/22381581296.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8406/9526/files/particle_swarm_optimization_algorithm_matlab_code.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7327/4018/files/68403522105.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4040/6684/files/bixoxifonobenija.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3588/5725/files/gilobigazitifemadekavemeb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1416/8487/files/scorpions_big_city_nights.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5124/5987/files/nenerakipiwuxozi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1646/1211/files/greater_than_less_than_equal_to_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8213/0332/files/degikozonizujel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8121/1810/files/gonogupodajelozizokoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6693/1862/files/broiler_production_book.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_off0000eb9c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB9C | 5292 bytes |
SHA-256: f5c258fcd88531a5965304a51bf1834b89c9bc6e5a4a02d70dd934490fc6f923 |
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font_01_sfnt_off0000fda4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDA4 | 14924 bytes |
SHA-256: 45b2ab461900f078cdc776b8807ebe67d18a363ebee42de4acc90b39e3afd54a |
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font_02_sfnt_off00012c23.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C23 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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