Malware Insights
The PDF file contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary malicious URL identified is 'https://ttraff.ru/pify?keyword=english+worksheets+pdf+free'. The document body, though heavily obfuscated, contains references to 'English worksheets pdf free', suggesting a lure to attract users to click on the malicious links. The presence of multiple Shopify URLs, some confirmed benign and others unknown, alongside the malicious redirector, indicates a link farm strategy to obscure the final malicious destination.
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.ru/pify?keyword=english+worksheets+pdf+free
- http://poriboku.admandwong.com/uploads/1/3/1/4/131407355/b29aa135a33.pdf
- http://viwapume.newlandfilms.co.uk/uploads/1/3/2/7/132710780/cd12ac6735.pdf
- https://cdn.shopify.com/s/files/1/0438/6439/1845/files/anatomy_and_physiology_for_nurses_at_a_glance.pdf
- https://cdn.shopify.com/s/files/1/0429/9735/0554/files/causes_of_procrastination_among_students.pdf
- https://cdn.shopify.com/s/files/1/0433/2938/8699/files/pedinunufigositi.pdf
- https://cdn.shopify.com/s/files/1/0431/2308/1378/files/short_answer_type_test_in_english.pdf
- https://cdn.shopify.com/s/files/1/0433/2837/2886/files/r_markdown_html_cheat_sheet.pdf
- https://cdn.shopify.com/s/files/1/0428/4533/9814/files/zotagejuxogilot.pdf
- https://cdn.shopify.com/s/files/1/0435/4323/2661/files/hindu_astrology.pdf
- https://cdn.shopify.com/s/files/1/0431/3153/5509/files/children_s_alphabet_picture_books.pdf
- https://cdn.shopify.com/s/files/1/0435/1338/1028/files/rafamapesaruxobowesop.pdf
- https://cdn.shopify.com/s/files/1/0434/2530/0629/files/simple_past_mixed_exercises_with_answers.pdf
- https://cdn.shopify.com/s/files/1/0430/8549/6482/files/96233857047.pdf
- https://cdn.shopify.com/s/files/1/0435/8524/1256/files/multiplication_and_division_worksheets_2_5_10.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/damegadunuje.pdf
- https://cdn.shopify.com/s/files/1/0433/8044/1238/files/zimewemanowawuw.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_off0000633e.bin443a84f649e0eca6abfa434eb5ddb064fc83d71c75c585a5efe9aa7a47dbe360 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x633E | 5208 bytes |
font_01_sfnt_off00007502.bin448b5a6bb6479682aff714fc3cfbc7b2e57cc68577a289e08ff2303364bbc57c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7502 | 10120 bytes |
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