MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document contains a message in its body text, 'Actualizar navegador chrome android', which is a lure to trick users into clicking a malicious link. The embedded URL 'https://ttraff.com/pify?keyword=actualizar+navegador+chrome+android' is flagged as a known malicious redirector. The PDF also contains a large number of external links, many pointing to 'static.usrfiles.com', suggesting a link farm or SEO poisoning tactic 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/pify?keyword=actualizar+navegador+chrome+android
- https://static.usrfiles.com/ugd/b8c837_2980f03b62a040bf9d78b0240be816ca.pdf
- https://static.usrfiles.com/ugd/b8c837_40f6f4ca71f74898a515a2598ec36831.pdf
- https://static.usrfiles.com/ugd/b8c837_5bf50ae1afd24b6fb38718fd7279e402.pdf
- https://static.usrfiles.com/ugd/9cb927_7853b692dc25446a928fac9e592ec03e.pdf
- https://cdn.shopify.com/s/files/1/0444/2842/7431/files/birth_control_options_handout.pdf
- https://static.usrfiles.com/ugd/aff7ca_823fa623a6b1451e99bda0da471294b1.pdf
- https://static.usrfiles.com/ugd/d775a9_6eb186cf38bb4906bed4592b00824a76.pdf
- https://static.usrfiles.com/ugd/6f58fb_86c4b75be77e4f03a203ee01718bc5ef.pdf
- https://static.usrfiles.com/ugd/b8c837_a96ba4d53c5d49dcb42b83e3e8453bac.pdf
- https://static.usrfiles.com/ugd/a44510_f37b1304963347678f4f833501e9f41e.pdf
- https://static.usrfiles.com/ugd/b8c837_dc4e1d3c30f24c46a999aafbd0482c6e.pdf
- https://static.usrfiles.com/ugd/33ab24_c0c9d47e692c4660b08658f427f7d2f0.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/
- https://static.usrfiles.com/ugd/33a
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006586.bine39e950d09df6a345b224682e3ebfa413c6e788aa15bcc63ea9d19c2ae860212 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6586 | 5276 bytes |
font_01_sfnt_off0000775a.bin808d185cc5c8c688189fa74f95adb947035fda47aeaeec70f663f2c03e255a85 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x775A | 10420 bytes |
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