MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link farm and a primary malicious redirector URL, suggesting a phishing or scam attempt. The document body, though partially corrupted, includes the text 'Como validar cpf e cnpj' and the malicious URL, indicating a lure to validate personal information. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful 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=como+validar+cpf+e+cnpj
- http://files.newhealthbydesign.com/uploads/1/3/2/6/132696280/jugekugobesideja.pdf
- http://files.tjcl.org/uploads/1/3/2/8/132815882/3946487.pdf
- http://files.pcspetprojectofitaly.org/uploads/1/3/0/9/130969172/1100057.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/7707/5108/files/projective_test_psychology_definition.pdf
- https://cdn.shopify.com/s/files/1/0427/6997/3415/files/13370231706.pdf
- https://cdn.shopify.com/s/files/1/0427/4244/8295/files/5058205789.pdf
- https://cdn.shopify.com/s/files/1/0428/8089/3084/files/71487171964.pdf
- https://cdn.shopify.com/s/files/1/0434/5774/0967/files/sojubu.pdf
- https://cdn.shopify.com/s/files/1/0429/7919/7081/files/wupoliwipon.pdf
- https://cdn.shopify.com/s/files/1/0431/4031/7335/files/bimomip.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63537272249.pdf
- https://cdn.shopify.com/s/files/1/0435/4496/9367/files/4028534971.pdf
- https://cdn.shopify.com/s/files/1/0430/9437/6605/files/18729132006.pdf
- https://cdn.shopify.com/s/files/1/0432/2567/7982/files/jiwopizeviku.pdf
- https://cdn.shopify.com/s/files/1/0431/3831/8487/files/87989437464.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007ba9.bine3c59fccf7775c0836758bbc61b0e6fbb1ec9563db4dde9b42abdd275b2fda00 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BA9 | 5164 bytes |
font_01_sfnt_off00008d2c.bin5e1c49767572642a7ba7426f03402c9111ee22aef4689d7cf7a3b54477b0508f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D2C | 17804 bytes |
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