MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains embedded links that direct users to a known malicious redirector URL, disguised as a search result for a textbook. The ML classifier strongly indicates maliciousness, and the PDF structure includes a large number of external links, suggesting a link farm or SEO poisoning tactic. No scripts were extracted, but the primary attack vector appears to be social engineering via deceptive links.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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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/wix?keyword=conceptual+physics+12th+edition+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/d55797_67532572a1294674bbdd88d403ecf293.pdf
- https://static.usrfiles.com/ugd/0a0016_1db569824f5b47dc8189da56e0c87eed.pdf
- https://static.usrfiles.com/ugd/930050_5e9573eb34cc47489eca97dd95f6e0fa.pdf
- https://static.usrfiles.com/ugd/b8c837_7bc36a9f5104486ca7fc52d0f3f10884.pdf
- https://static.usrfiles.com/ugd/b6edda_15bc26a181e54da4bc1ec46de1c95fbe.pdf
- https://static.usrfiles.com/ugd/99afdc_a7971b8e10bb4391bcf5d6ad9604a99c.pdf
- https://static.usrfiles.com/ugd/77d535_efaaf762a83e44e0b5c1a9ab1f879532.pdf
- https://static.usrfiles.com/ugd/5b9a87_1a18466929be45ac9d110f2aed8b3ade.pdf
- https://static.usrfiles.com/ugd/5899d5_04fa775a20ce42b3b32daf5acaf06451.pdf
- https://static.usrfiles.com/ugd/735189_1bff444f607742b980d1dea7eb60b413.pdf
- https://static.usrfiles.com/ugd/b8c837_a49289018dd84a7f88afcfbded0bdc9e.pdf
- https://static.usrfiles.com/ugd/e4a001_c17a61d87a194f76ad4fb1d915c16d37.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/2033782386.pdf
- https://cdn.shopify.com/s/files/1/0432/5244/9444/files/58104110074.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000793b.bin8fe4ab4ef3525b9855f46432a210185926f2c8faf4e7c937c992f7e594e787cc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x793B | 5340 bytes |
font_01_sfnt_off00008b6d.binac03ae1c53ebd04023188122e4c81f717643085ebb9f3f860d8e82e8bb6aa28c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8B6D | 11048 bytes |
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