Malware Insights
The PDF was flagged as malicious due to a high number of embedded links, many of which are part of a link farm likely intended for SEO manipulation. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=grammar+worksheets+for+grade+11+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting it is a primary lure. The presence of numerous external PDF links, including those hosted on Shopify, indicates a broad distribution strategy. No scripts were extracted, and the primary malicious functionality appears to be link redirection and potential SEO abuse.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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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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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.cc/pify?keyword=grammar+worksheets+for+grade+11+pdf
- http://zexojux.uniquepersonalstatements.com/uploads/1/3/1/3/131383388/7004728.pdf
- http://tuwemesi.southernfisheries.org/uploads/1/3/1/4/131437308/9197c8283.pdf
- http://files.vincentamelio.com/uploads/1/3/2/7/132740549/85bb755e12765.pdf
- http://files.lectionarypress.com/uploads/1/3/0/8/130874583/bb00b05e4c.pdf
- https://cdn.shopify.com/s/files/1/0435/5080/2081/files/html_full_codes.pdf
- https://cdn.shopify.com/s/files/1/0431/5938/8320/files/keduzafejetagojik.pdf
- https://cdn.shopify.com/s/files/1/0434/7622/2114/files/schwinn_electric_scooter.pdf
- https://cdn.shopify.com/s/files/1/0429/2296/7207/files/rafeterusadelege.pdf
- https://cdn.shopify.com/s/files/1/0427/8226/1415/files/29305673137.pdf
- https://cdn.shopify.com/s/files/1/0428/9154/2681/files/html_nav_tag.pdf
- https://cdn.shopify.com/s/files/1/0440/6388/3429/files/18360131825.pdf
- https://cdn.shopify.com/s/files/1/0431/7125/0333/files/poxatinegidetujovur.pdf
- https://cdn.shopify.com/s/files/1/0434/1334/0316/files/88181666597.pdf
- https://cdn.shopify.com/s/files/1/0431/1921/4758/files/gibaporapibagidurox.pdf
- https://cdn.shopify.com/s/files/1/0430/8212/1377/files/paxiguxerivaxexujazurixew.pdf
- https://cdn.shopify.com/s/files/1/0449/5376/3999/files/types_of_multilingualism.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000069d7.binb91b316c73ef5448bb8c427f37fea7a711a126c17b1c05da5d959d83d2dcc8c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69D7 | 5664 bytes |
font_01_sfnt_off00007d1d.binbe823d78e499853ddfd22c309300a5470b7d27ab24ce40827fa8808c66bebecb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D1D | 10176 bytes |
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