MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains numerous embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body itself contains text related to 'rational numbers class 8 worksheet with answers' and includes the malicious URL, suggesting a phishing or scam lure. The presence of many external PDF links, some benign and some unknown, indicates a link farm or SEO manipulation tactic to distribute the malicious content.
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.ru/pify?keyword=rational+numbers+class+8+worksheet+with+answers In PDF document text
- http://files.ethnictails.com/uploads/1/3/0/7/130775859/bilisudufojipe-sapawununamiw-tatawuzodij-jixid.pdfIn PDF document text
- http://vagoxuw.preciousbeginnings.info/uploads/1/3/0/8/130874493/518509.pdfIn PDF document text
- http://files.coyleparker.com/uploads/1/3/1/4/131437669/8649752.pdfIn PDF document text
- http://files.upstateyorkiesandmorkies.com/uploads/1/3/0/7/130739084/berusosikabak.pdfIn PDF document text
- http://files.philanthropyadvisorsny.org/uploads/1/3/1/3/131379830/6234097.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/1/0438/2107/2546/files/urticaria_treatment_guidelines.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6982/4414/files/37545237187.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1311/9905/files/41554850452.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51906755497.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/4582/6210/files/14854857697.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2297/4117/files/nimatited.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5751/1590/files/32688110893.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0180/7007/files/vagopokomutiwologovek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4557/6088/files/nirusud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7792/7063/files/ganer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9963/4330/files/certificate_of_conformity_mercedes_uk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0404/3170/files/kexobafitufisevilagadeki.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_off00005d76.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D76 | 5536 bytes |
SHA-256: f5bb7f09ebccbb6e9c4e25d4a5388ee411f35297e7b698dea34f1193cca511eb |
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font_01_sfnt_off0000702b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x702B | 12324 bytes |
SHA-256: 28b21d1f205cc52ce742af1d068450b60d87b95736af3dca8805bb11ce62a4ca |
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font_02_sfnt_off000097a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x97A0 | 16164 bytes |
SHA-256: 6e3fbd491d8b71441998836ddca0d0c102716a221ea14f8143929167ad9a79b3 |
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