MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and heuristics indicate it contains a malicious redirector link and a large number of external PDF links, suggesting a link farm for SEO manipulation or phishing. The primary malicious URL identified is https://ttraff.ru/wix?keyword=que+quiere+decir+el+leon+nunca+volte. The document body contains garbled text but includes the same suspicious URL and several benign-looking URLs hosted on static.usrfiles.com.
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.ru/wix?keyword=que+quiere+decir+el+leon+nunca+volte
- https://static.usrfiles.com/ugd/b8c837_f8b0ffd4da654258ab5c59a5e70737f0.pdf
- https://static.usrfiles.com/ugd/a86d68_fbd12066ad87445096d38c08a5522813.pdf
- https://static.usrfiles.com/ugd/b8c837_a3fad402974c48eda4ff995286b5a2a6.pdf
- https://static.usrfiles.com/ugd/b13fd1_dace6b3619a04e4e8bd6c3bd8e08291e.pdf
- https://static.usrfiles.com/ugd/b8c837_42e17ff606594241b2eacebdc34ef721.pdf
- https://static.usrfiles.com/ugd/ab059d_eabb810042844eb9ae8c3fc9582c1252.pdf
- https://static.usrfiles.com/ugd/3aee12_4d98b6dd74954eddb56a65122b28a633.pdf
- https://static.usrfiles.com/ugd/64d889_cd28d92b24c14b1fa9c665c6a87206ec.pdf
- https://static.usrfiles.com/ugd/b8c837_0666e95256234955a04ebe5362be9d6f.pdf
- https://static.usrfiles.com/ugd/b8c837_a0cda5fb219c4fcaaa189a617268114d.pdf
- https://static.usrfiles.com/ugd/b8c837_2bfbce9e99b9418aa57e31d4dbabc5c6.pdf
- https://static.usrfiles.com/ugd/b8c837_ded4b12a534341b485afa6b27f0dfea6.pdf
- https://static.usrfiles.com/ugd/f3ecbe_914e0fced1bf4227b2d54cad95ae9efa.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_off000066e4.binf9212bbdd82bc89abfccf45cb940d55a0c8fe997fb664b3cc7d819b4d30a1751 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66E4 | 5000 bytes |
font_01_sfnt_off000077fa.bin557fb2be84efcb5849b3c71db7f8ae90144b8c31b13f86b0cda9e900247e2022 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77FA | 11312 bytes |
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