MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of links, many of which point to a redirector service designed for SEO manipulation and phishing. The document body explicitly mentions 'Ashrae handbook fundamentals pdf free download' and includes a URL that redirects to malicious infrastructure, indicating a phishing attempt to trick users into downloading potentially harmful content. The presence of numerous external links suggests a link farm designed to improve search engine rankings for malicious download lures.
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=ashrae+handbook+fundamentals+pdf+free+download In PDF document text
- http://felunati.mygentlebeginnings.com/uploads/1/3/1/0/131069839/3485143.pdfIn PDF document text
- http://tasivalud.twostallionsthailand.com/uploads/1/3/0/9/130969959/e7538.pdfIn PDF document text
- http://files.cdgpc.com/uploads/1/3/1/3/131379054/mikotixebisole.pdfIn PDF document text
- http://files.asha-ny.org/uploads/1/3/2/7/132740778/0e888ca5c7a95d8.pdfIn PDF document text
- http://tokoxu.daughterofthestarswellness.com/uploads/1/3/1/6/131607062/3d3755.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/1/0429/5848/7715/files/nunizuwanobobubosuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5525/1605/files/machinery_s_handbook_29th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6045/3785/files/lijetaviwibep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7853/2758/files/6177860838.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/9621/5456/files/66831283240.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0484/4442/files/ruserebelofuwiregi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32732230761.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3437/6352/files/miller_symmetry_groups_and_their_applications.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3629/3785/files/data_mining_algorithms_in_c.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8832/1443/files/rasekovamiwela.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5764/2648/files/deconstruction_theory_and_practice_christopher_norris.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3518/1734/files/winzip_21._5_activation_code_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6425/4883/files/bncc_lngua_inglesa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0512/4516/files/kumobiripamomikalurekulez.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_off0000719a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x719A | 5568 bytes |
SHA-256: 302bc388f7eebf11a811ba586f8e260452ed72f2ad254a1b874bc8788b0a80f4 |
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font_01_sfnt_off0000845e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x845E | 9788 bytes |
SHA-256: dcd936a7f1fb9e6f6b124048b6e9d5dbac3d839e281a87862a3e9aa9196b0a8a |
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