MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1204 Malicious Link
T1566 Phishing
The PDF file contains numerous embedded links, with one identified as a malicious redirector. The document body text, though heavily obfuscated, suggests a social engineering lure to install a browser extension or update. This is supported by the 'SE_BROWSER_INSTALL_LURE' heuristic. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or malware download.
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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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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=biomechanical+principles+of+tennis+technique+pdf In PDF document text
- http://luzuk.ancientsonespeak.com/uploads/1/3/1/0/131070447/murisevi-xavaf-rajokodeput-bamesin.pdfIn PDF document text
- http://files.fredkaplanbiographer.com/uploads/1/3/1/3/131380107/8174254.pdfIn PDF document text
- http://files.lombardyreview.com/uploads/1/3/1/3/131380337/6975451.pdfIn PDF document text
- http://files.thejoyoftango.com/uploads/1/3/2/6/132682063/4968442.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/1/0432/9547/3822/files/61730782529.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1745/3211/files/kixalejamutefade.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0635/2804/files/36558006497.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9121/2950/files/41957303840.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gozoba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9853/0202/files/nebemoj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8413/6086/files/tefumu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0061/7381/files/37817362953.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4933/6483/files/boxemoduzerovanifipefuxig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9092/8026/files/xokazal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1464/2070/files/ferunugenufax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5638/0574/files/garvin_nuvi_760.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5339/7654/files/sedukuv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/7550/8126/files/94665962980.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
🗂 Part of campaign:
fredkaplanbiographer.com
3 samples
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006d71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D71 | 5568 bytes |
SHA-256: 227e7c10e730812c5bdf4a04c60c4f827c419e4672656bb3cccc826df3b8e43d |
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font_01_sfnt_off0000802d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x802D | 9980 bytes |
SHA-256: ecfd904d75cea2ae6e59a0f35438182e656907274f509e0d43da10a5b938294b |
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