MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to suspicious or malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=behaviorismo+radical+e+pratica+clinica+mar%25C3%25A7al+pdf, which is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains this URL and other links to PDF files hosted on various domains, 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.cc/pify?keyword=behaviorismo+radical+e+pratica+clinica+mar%25C3%25A7al+pdf
- http://files.debbietuepah.com/uploads/1/3/1/8/131856353/wunusab.pdf
- http://files.lefkasluxuryvillas.com/uploads/1/3/1/8/131856987/b340f59d81d80.pdf
- http://files.westcountryswords.co.uk/uploads/1/3/0/8/130873717/1a9ceb0c.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/1236/6229/files/21242405209.pdf
- https://cdn.shopify.com/s/files/1/0431/5509/5712/files/50013858299.pdf
- https://cdn.shopify.com/s/files/1/0448/4985/6669/files/website_scraping_with_python_using_beautifulsoup_and_scrapy.pdf
- https://cdn.shopify.com/s/files/1/0433/9266/3702/files/fidojamesapunaliv.pdf
- https://cdn.shopify.com/s/files/1/0430/2602/2557/files/87136908483.pdf
- https://cdn.shopify.com/s/files/1/0434/2412/0984/files/99357794854.pdf
- https://cdn.shopify.com/s/files/1/0438/9853/6091/files/85952432566.pdf
- https://cdn.shopify.com/s/files/1/0427/9848/1564/files/gst_percentage_list.pdf
- https://cdn.shopify.com/s/files/1/0431/2930/7293/files/92550591868.pdf
- https://cdn.shopify.com/s/files/1/0429/6320/6307/files/goraxeperepagexazumaxaxed.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- https://doi.org/10.31505/rbtcc.v7i2.32
- 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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006546.binc9cf0b5a4c73c33a90c9b1d1e663c752a15c01628645251ba2fd1331fd1d6dd4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6546 | 5688 bytes |
font_01_sfnt_off00007838.binea02012709eb330a6c74631ba98efb45df5e6f5bd1f143247ba60267eb82bbe2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7838 | 10268 bytes |
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