Malware Insights
The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/wix?keyword=fluid+mechanics+2nd+edition+pdf'. This URL is presented within the document body, suggesting a social engineering lure to trick users into clicking it. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely for SEO manipulation. No scripts were extracted, and the document body itself is heavily obfuscated, but the primary malicious intent appears to be redirecting the user to the identified malicious URL.
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/wix?keyword=fluid+mechanics+2nd+edition+pdf
- https://static.usrfiles.com/ugd/21e6f2_af645b26e8ca4c9c802c667d2b971c0c.pdf
- https://static.usrfiles.com/ugd/b8c837_82c0bf740d0c4bbcad856d7bcbf0050f.pdf
- https://static.usrfiles.com/ugd/b8c837_86529403d23d4fd38e9b14018a7b77cd.pdf
- https://static.usrfiles.com/ugd/b8c837_f63b7dda1d4145da991c40674ec6acab.pdf
- https://cdn.shopify.com/s/files/1/0433/6690/8054/files/52116626128.pdf
- https://cdn.shopify.com/s/files/1/0460/2780/0735/files/68913665784.pdf
- https://cdn.shopify.com/s/files/1/0429/2398/3015/files/android_assets_folder_file_system.pdf
- https://cdn.shopify.com/s/files/1/0437/3282/8314/files/gilase.pdf
- https://cdn.shopify.com/s/files/1/0432/8577/4491/files/historical_classification_of_bantu_languages.pdf
- https://cdn.shopify.com/s/files/1/0430/5544/8213/files/vogixemumafudas.pdf
- https://cdn.shopify.com/s/files/1/0431/0587/8167/files/22056937530.pdf
- https://cdn.shopify.com/s/files/1/0440/8174/1976/files/nusebe.pdf
- https://cdn.shopify.com/s/files/1/0436/7895/7718/files/92690332762.pdf
- https://cdn.shopify.com/s/files/1/0436/5585/6281/files/grep_for_multiple_strings.pdf
- https://cdn.shopify.com/s/files/1/0433/5671/7224/files/avesta_versiones_en_espaol.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000085be.bin5f51164850e36646b2ee2363f5a5f55014ad4d636230f0e2e6a63b5856081d8c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x85BE | 5268 bytes |
font_01_sfnt_off0000977b.binc3ad679579f8ac2b0719287f7d1e538ecac5347c998136ce54ab39582eda1c5e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x977B | 10780 bytes |
font_02_sfnt_off0000bbe7.binb50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBE7 | 4324 bytes |
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