Malware Insights
The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector, 'https://ttraff.cc/pify?keyword=bronchiolitis+journal+pdf', which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains references to 'Bronchiolitis journal pdf' and the authoring application 'wkhtmltopdf', indicating a lure to disguise malicious intent. No scripts were extracted from this sample.
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=bronchiolitis+journal+pdf
- http://files.mayflowerimporters.com/uploads/1/3/1/4/131406605/gibepulidof.pdf
- http://files.shandryntrumble.com/uploads/1/3/1/4/131413362/xixegapejawepuro.pdf
- http://files.entomoanthro.org/uploads/1/3/2/6/132681201/261185.pdf
- http://ritepaz.4barmadillos.com/uploads/1/3/0/9/130968917/5373c0b0d8b9c.pdf
- http://files.villalta-artgallery.com/uploads/1/3/1/3/131380107/8031181.pdf
- https://cdn.shopify.com/s/files/1/0432/8184/2341/files/doweramodo.pdf
- https://cdn.shopify.com/s/files/1/0430/5754/5365/files/brief_history_of_neoliberalism_david_harvey.pdf
- https://cdn.shopify.com/s/files/1/0430/8008/9760/files/sabowikitanuk.pdf
- https://cdn.shopify.com/s/files/1/0450/0937/1286/files/vision_ias_budget_2020_20.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pajakeveposemilakojataza.pdf
- https://cdn.shopify.com/s/files/1/0433/7431/3621/files/11757402537.pdf
- https://cdn.shopify.com/s/files/1/0440/5320/1046/files/inter_national_khiladi.pdf
- https://cdn.shopify.com/s/files/1/0428/9134/6079/files/jorixilera.pdf
- https://cdn.shopify.com/s/files/1/0427/9681/0396/files/jesojadefokadokadolaleve.pdf
- https://cdn.shopify.com/s/files/1/0433/9499/0243/files/cambridge_english_test_b2.pdf
- https://cdn.shopify.com/s/files/1/0437/7149/4554/files/74827053738.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_off00006b43.bin71bfee2852cd6659a721dc26defbabe95b76369f5d66e42becad237a65ed220b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B43 | 5368 bytes |
font_01_sfnt_off00007d79.bina1ad731777dd214e8a41c91deed4eafd2d0f193a5f40f490de1e5f9f9b144586 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D79 | 10304 bytes |
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