Malware Insights
The PDF file was identified as malicious due to a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it contains links to known malicious redirector infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic fired, noting a mass of external PDF links, many hosted on cdn.shopify.com. The primary malicious URL identified is https://ttraff.com/wix?keyword=operating+systems+three+easy+pieces+pdf, which is likely used to redirect users to further malicious content. The document body contains garbled text but includes the primary malicious URL and several benign-looking URLs, suggesting a lure or redirection mechanism.
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.com/wix?keyword=operating+systems+three+easy+pieces+pdf
- https://static.usrfiles.com/ugd/b8c837_35c50be2dfed4c58b285b38b45f37d2c.pdf
- https://static.usrfiles.com/ugd/b8c837_2834bcfd68bd46e392f192ff386ad85c.pdf
- https://static.usrfiles.com/ugd/b8c837_b5d72d8fb86b42059382dd488905e9a3.pdf
- https://static.usrfiles.com/ugd/b8c837_b07cb329512d4054949d76341b293a75.pdf
- https://cdn.shopify.com/s/files/1/0429/3623/8236/files/bixogugaw.pdf
- https://cdn.shopify.com/s/files/1/0430/7891/0106/files/job_element_sheet.pdf
- https://cdn.shopify.com/s/files/1/0464/8432/4504/files/27060231746.pdf
- https://cdn.shopify.com/s/files/1/0443/3071/3244/files/les_adjectifs_possessifs_en_franais_exercices.pdf
- https://cdn.shopify.com/s/files/1/0434/7287/9773/files/26596455704.pdf
- https://cdn.shopify.com/s/files/1/0434/7609/1045/files/50728861293.pdf
- https://cdn.shopify.com/s/files/1/0430/6249/3345/files/nowegujakobovemujefagef.pdf
- https://cdn.shopify.com/s/files/1/0436/1604/3168/files/rofanulorononeziselatibi.pdf
- https://cdn.shopify.com/s/files/1/0433/8227/6250/files/66764349984.pdf
- https://cdn.shopify.com/s/files/1/0433/0933/4696/files/whirlpool_cabrio_washer_service_manual.pdf
- https://cdn.shopify.com/s/files/1/0432/4874/6651/files/chander_pahar_bengali_novel.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_off0000645f.bin2142b19fd283261e3f4e0e6dc756709583f915e096857015efa6204e98b2af2a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x645F | 5664 bytes |
font_01_sfnt_off00007774.binc0a2194392c4cdaa1d0bffbc900ca2c1c09fb955e21edde9bb0d5cc08c60e443 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7774 | 11092 bytes |
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