MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The ML classifier also strongly indicated maliciousness. The primary malicious URL identified is https://ttraff.com/wix?keyword=wh+auden+age+of+anxiety, which is likely used to redirect users to a malicious site. The document body, though heavily obfuscated, contains this URL and numerous other links pointing to static.usrfiles.com, suggesting a coordinated effort to distribute malicious content.
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=wh+auden+age+of+anxiety
- https://static.usrfiles.com/ugd/b8c837_a8665934cda84ffdbd7e28cbdd013b34.pdf
- https://static.usrfiles.com/ugd/b8c837_20cc7e4667424dc59be3dfd229417251.pdf
- https://static.usrfiles.com/ugd/b8c837_7c8bc529c4e34f1496d0b4591b5addac.pdf
- https://static.usrfiles.com/ugd/b8c837_385dd0bc74064aeca4d26ae599aae002.pdf
- https://static.usrfiles.com/ugd/b8c837_b19ae811a6e5425888552086771aff93.pdf
- https://static.usrfiles.com/ugd/b8c837_b40ca334f3f34c06ae4f96d28985702b.pdf
- https://static.usrfiles.com/ugd/b8c837_d0003d6e7db749eeb8e3909d91259118.pdf
- https://static.usrfiles.com/ugd/b8c837_cf6d042501604a5ab710fa21e3333053.pdf
- https://static.usrfiles.com/ugd/b8c837_667933dfe85642a585d3573aa8fc227a.pdf
- https://static.usrfiles.com/ugd/b8c837_0ee598425d8f409abc7629fa27cc1dae.pdf
- https://static.usrfiles.com/ugd/b8c837_7c7f3c03dff740008ea03e24f6f0d243.pdf
- https://static.usrfiles.com/ugd/b8c837_dd478a87a217432d8bf1dbebc761b52b.pdf
- https://static.usrfiles.com/ugd/b8c837_620d184dd9a9432389054d018f17e09e.pdf
- https://static.usrfiles.com/ugd/b8c837_f20e34dc86bb4b579029d044e266d776.pdf
- https://static.usrfiles.com/ugd/b8c837_1854796f68aa48ba8ef2d54570f67e0b.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_off00006b0e.bin3e81044af8a3f3f73b89aa4cd1eeb923792e2c61196f67d37024bfa25ca4a719 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B0E | 5044 bytes |
font_01_sfnt_off00007c53.binbb65e72f9f0185726b46b76a449ceff11d77cca36f5aff99b0a253e60a8e0c97 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C53 | 13340 bytes |
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