MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link that redirects to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same malicious URL and appears to be part of a link farm designed to improve search engine ranking for specific keywords, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML_NYX_PDF_MALICIOUS heuristic further confirms the malicious nature of the PDF. The primary attack vector is likely social engineering through a deceptive link.
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/wix?keyword=miguel+angel+cornejo+libros+pdf+gratis
- https://static.usrfiles.com/ugd/b8c837_f1c45884a71143b18055d956689e6f83.pdf
- https://static.usrfiles.com/ugd/9ea91e_f4b995b136214068a40f88e92ee8b35c.pdf
- https://static.usrfiles.com/ugd/a2d007_d8125154b3354760be706a7502118da5.pdf
- https://static.usrfiles.com/ugd/b8c837_b8c25b3b1e3b488087489b27d736c541.pdf
- https://cdn.shopify.com/s/files/1/0435/8209/5517/files/types_of_bird_feathers.pdf
- https://cdn.shopify.com/s/files/1/0431/4100/5480/files/wipozugeme.pdf
- https://cdn.shopify.com/s/files/1/0431/3877/7249/files/rapevap.pdf
- https://static.usrfiles.com/ugd/575363_c9f8ffe1a35d4bfea101158c8f0f2050.pdf
- https://static.usrfiles.com/ugd/b8c837_6f6068acbefa42d9a9039bad35eae4bf.pdf
- https://static.usrfiles.com/ugd/b8c837_6d19acdc6c0d443094c25e9c23efd574.pdf
- https://cdn.shopify.com/s/files/1/0430/0803/2922/files/sedix.pdf
- https://cdn.shopify.com/s/files/1/0439/1701/7256/files/26284347013.pdf
- https://cdn.shopify.com/s/files/1/0434/6393/4105/files/dodivegotajepimile.pdf
- https://cdn.shopify.com/s/files/1/0431/2530/9604/files/kevamo.pdf
- https://cdn.shopify.com/s/files/1/0430/9411/4457/files/jefitijijirumovokamizi.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_off00005611.bind4f638c97fc765f13291535311021d68287218d2ed18aa1a0f0f421da4f2b928 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5611 | 5544 bytes |
font_01_sfnt_off000068fd.binc0432e201797d3285cc86e2df8d64bfd2411d50b1bd93afb22ef46b1abba75ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68FD | 11004 bytes |
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