MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a link to a known malicious redirector, ttraff.com, which is designed to lure users to malicious content. The document body, though heavily obfuscated, contains the same URL and a list of other URLs hosted on static.usrfiles.com, suggesting a link farm or redirection strategy. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed for malicious redirection.
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.com/wix?keyword=what+happened+to+the+glass+blower+who+inhaled+worksheet+answers
- https://static.usrfiles.com/ugd/c345b0_286abb0a69a34d59a87cdd6fa72c52c2.pdf
- https://static.usrfiles.com/ugd/b8c837_a89861ec2d0148a5bc7c1a34fe376d43.pdf
- https://static.usrfiles.com/ugd/7e6083_3a6aa6373696413db1a2e3662096bcc5.pdf
- https://static.usrfiles.com/ugd/4b68be_748b50ae87a249ba95e7321f7d19e455.pdf
- https://static.usrfiles.com/ugd/b8c837_e85dd171fe154ea7a1a64fa96965ea2d.pdf
- https://static.usrfiles.com/ugd/585b1d_341b20502dc94060adf968e80e3515e1.pdf
- https://static.usrfiles.com/ugd/d54300_1c1eb48338ea49078c26f3c5e251540d.pdf
- https://static.usrfiles.com/ugd/b8c837_0b8f1a4400a3422b8909dc1a4f0ee5ce.pdf
- https://static.usrfiles.com/ugd/b8c837_85da2e815a04463ca0461b7aa322d485.pdf
- https://static.usrfiles.com/ugd/b8c837_fd75f13c0f4448adbdfa0cc5f547db8a.pdf
- https://static.usrfiles.com/ugd/b8c837_ebe5f5248af946c5b1cf4e1835eef8ce.pdf
- https://static.usrfiles.com/ugd/d4a9d6_c54565808b414c47b1fbdfaec40b7ae1.pdf
- https://static.usrfiles.com/ugd/b8c837_2d77f2b57c8a43fd8b1c7c0d218342df.pdf
- https://static.usrfiles.com/ugd/a86d68_0a53dc1ad5a448d0a96cc8713cc5fd68.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_off000066d1.bin85d60ff12f3da1793277ffaa0d7511b63c3f1743121217d93ba88bf1201f9577 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66D1 | 5528 bytes |
font_01_sfnt_off000079ab.binb9423f8ce005080738f4bde6b3646da921815f104aa156207abd36160d8bdb09 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79AB | 14284 bytes |
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