MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains a large number of external links, many of which point to a redirector service. The primary malicious URL identified is https://ttraff.cc/pify?keyword=chemistry+notes+for+class+11+pdf, which is likely used to funnel victims to a malicious payload. The ML classifier strongly indicates maliciousness, and the presence of a link farm suggests a SEO-based lure to attract victims searching for educational materials.
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=chemistry+notes+for+class+11+pdf In PDF document text
- http://files.monsoonblooms.com/uploads/1/3/0/7/130775092/4910760.pdfIn PDF document text
- http://files.mcearlychildhoodprogram.com/uploads/1/3/1/8/131871633/016078a8478c894.pdfIn PDF document text
- http://files.emmanuelyork.org/uploads/1/3/0/8/130814633/7424754.pdfIn PDF document text
- http://files.mdeasonphotography.com/uploads/1/3/1/4/131454316/rumidomutisufo-kudowu-kogoluwewimewaj-gofazerebi.pdfIn PDF document text
- http://files.nathanwolff.com/uploads/1/3/1/8/131856308/nokudefe-jotir-jigixisad-fipaweder.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/1/0435/7403/4600/files/18779583041.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7143/1065/files/65918947492.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3151/7592/files/identifying_alliteration_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8052/3678/files/93135247217.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/0081/2952/files/2351733805.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/8619/8424/files/23271779704.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7453/6103/files/62516624392.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4693/5447/files/gozipapasawu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0265/0020/files/1128013211.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2094/9403/files/cerebro_reptiliano_humano.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5806/0703/files/98730296035.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5293/4044/files/8966202900.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9394/1671/files/70956134140.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_off000086e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x86E6 | 5452 bytes |
SHA-256: 349f1fd2eaa78adbc612241da56fb95bded78f3cd535036b5191290584303d06 |
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font_01_sfnt_off00009950.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9950 | 10456 bytes |
SHA-256: 0cf6baeb481d39c07ee6bfcd8c697967306433aed11d7b8ea607dde5e70bc4b2 |
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