MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.ru/pify?keyword=classroom+action+research+sample+pdf', likely serves as a lure to a malicious site. The PDF also contains a large number of external links, many pointing to benign Shopify domains, suggesting a link farm SEO tactic to improve search engine ranking for malicious content. The ML classifier strongly flagged this PDF as malicious.
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=classroom+action+research+sample+pdf In PDF document text
- http://files.roastedcoffeeqc.com/uploads/1/3/1/6/131606858/tegoxete.pdfIn PDF document text
- http://files.bkdoula.com/uploads/1/3/0/8/130874035/305554.pdfIn PDF document text
- http://files.chinatownbranch.com/uploads/1/3/1/3/131380467/1307638.pdfIn PDF document text
- http://files.sharonbaptisthamptonva.com/uploads/1/3/1/6/131607054/7135786.pdfIn PDF document text
- http://files.utaps.org/uploads/1/3/2/3/132302764/96ba2d4fe7e3.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0431/8520/9512/files/definite_articles_in_english_exercises.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0446/8134/files/90147402110.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1880/3605/files/97833637431.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2499/8819/files/22841176681.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5119/6315/files/gezukawijula.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2574/4540/files/el_alienista_caleb_carr_descargar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5883/7142/files/what_is_a_slug_in_wordpress.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2079/5556/files/20983538524.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0357/5454/files/radoladonexopirofizotozel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0658/3203/files/16806812816.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1109/6221/files/ayushman_bharat_list.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5756/9176/files/14074177186.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_off00007877.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7877 | 1696 bytes |
SHA-256: c80b935bb2e72fbf0bb54bead4dcf673e2ee9ff5a06d35ab91e29c0786333a85 |
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font_01_sfnt_off000080a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x80A1 | 5300 bytes |
SHA-256: 0a19e6647f6b9b79f5f0fdd0788b916657fab9cf37909476becec03f5f25a300 |
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font_02_sfnt_off00009279.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9279 | 10176 bytes |
SHA-256: d0a13a4ab7842516db7f9fba4b16e20d57d07b52b563e563d10e3328ef9f01a4 |
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