MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links designed to appear as legitimate book downloads, but they redirect to malicious infrastructure. The primary redirector URL is https://ttraff.ru/pify?keyword=genetics+and+evolution+book+pdf, which is used to funnel users to potentially harmful content. The document body, though heavily obfuscated, contains embedded URLs that are part of this link farm, suggesting a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=genetics+and+evolution+book+pdf In PDF document text
- http://files.rcknteachn.com/uploads/1/3/2/6/132681576/segewalotivug.pdfIn PDF document text
- http://kenizeni.graysondel.com/uploads/1/3/2/3/132302921/jipunedugura_faxolun.pdfIn PDF document text
- http://files.historylessonsforthemoderninvestor.com/uploads/1/3/2/7/132741556/xudob.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/1/0431/1167/8114/files/98662248449.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0952/3355/files/somagozaradinibatoba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0409/2839/files/23394910362.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1302/0570/files/vaveleninorexef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6484/2647/files/glencoe_advanced_mathematical_concepts_precalculus_with_applications_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4542/9160/files/14194580389.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2994/5758/files/xabarinajozop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4295/5676/files/xumirewomu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/semigo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0446/9538/8313/files/tutorial_autocad_electrical_2020_espaol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3216/7068/files/50227505731.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_off0000550b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x550B | 5348 bytes |
SHA-256: 47a88e30575c7b96cd46c3761b5adadf23c6db6ff082c3e8161a4f838d26d82d |
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font_01_sfnt_off0000675d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x675D | 10152 bytes |
SHA-256: b9bbdb551c0d43f5785d49fc9c0d1809a7de649cddfe006ea4c2bc30ca67941d |
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