MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to a link farm hosted on static.usrfiles.com. One of these links, https://ttraff.com/wix?keyword=carteles+de+bailes+gruperos, is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a social engineering lure to drive traffic to malicious infrastructure. No scripts were extracted, limiting the analysis of direct execution capabilities.
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=carteles+de+bailes+gruperos
- https://static.usrfiles.com/ugd/b8c837_09a96ab70c8642eca0de305974aaf86d.pdf
- https://static.usrfiles.com/ugd/accd1f_78e976a9e9424dbba48e5ba835bbddee.pdf
- https://static.usrfiles.com/ugd/b8c837_de82ef8dd8774e5a86d629f3711181a5.pdf
- https://static.usrfiles.com/ugd/b8c837_2a9ccaf4b064448a86884bd602857cf8.pdf
- https://static.usrfiles.com/ugd/b8c837_c4b27a19a9c04f3e986963b242c21e9b.pdf
- https://static.usrfiles.com/ugd/b8c837_b139f2e832534566ba572c359f306460.pdf
- https://static.usrfiles.com/ugd/b8c837_74726b9b4fba41a4a90d5fc8d2fd26b2.pdf
- https://static.usrfiles.com/ugd/e73fea_65350d36839b455e820351fa8dfdfd74.pdf
- https://static.usrfiles.com/ugd/b8c837_69b7f69f54454e3f9f877e93227c4a94.pdf
- https://static.usrfiles.com/ugd/a382ee_205106019625439aa61f8782f2a32fa1.pdf
- https://static.usrfiles.com/ugd/5ad03d_51416cf480f2426bbf43eb48d0d8c6c1.pdf
- https://static.usrfiles.com/ugd/d5cf39_777c70184ad7443f91d6566e2d0c4533.pdf
- https://static.usrfiles.com/ugd/b8c837_c8bd4134a00945f09210d802911cd271.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_off0000598e.bin4f7691dd4f309557a94e1bb1ed5b0d25fbf69899649805c810f64783584effb7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x598E | 5172 bytes |
font_01_sfnt_off00006b27.bin40009ed9f4c23ecf28a9f5f735b70c07c0dfc17bba0b5be7ce05f3de78718696 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B27 | 12500 bytes |
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