MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to malicious infrastructure, specifically identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text that appears to be a lure for a book PDF, and the primary URL points to a redirector. The ML classifier also strongly indicated maliciousness.
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=castillo+en+el+aire+libro+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/913720_6c244d1cc8654516bcdf42638ac93d6b.pdf
- https://static.usrfiles.com/ugd/b8c837_c4a474de23234ad19ff6efe174bdf19a.pdf
- https://static.usrfiles.com/ugd/b8c837_cb6f0d2e3f224ffdbc54b9370b056c71.pdf
- https://static.usrfiles.com/ugd/b8c837_e5d6b7df37384fc9a880e88f05fb19f3.pdf
- https://static.usrfiles.com/ugd/e73fea_f44c7d264ba24325984000249aeeddf5.pdf
- https://cdn.shopify.com/s/files/1/0431/0145/4500/files/80032223892.pdf
- https://cdn.shopify.com/s/files/1/0435/6043/5871/files/45831321143.pdf
- https://cdn.shopify.com/s/files/1/0433/0009/4112/files/15_day_forecast_for_colubmus_ohio.pdf
- https://cdn.shopify.com/s/files/1/0428/1407/9143/files/92302278788.pdf
- https://cdn.shopify.com/s/files/1/0435/5381/6728/files/29620931776.pdf
- https://cdn.shopify.com/s/files/1/0431/5152/4008/files/dakivugufabofil.pdf
- https://cdn.shopify.com/s/files/1/0430/8572/5850/files/7416418812.pdf
- https://cdn.shopify.com/s/files/1/0432/9583/4276/files/kegatekexijawaloru.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12339474235.pdf
- https://cdn.shopify.com/s/files/1/0431/2524/4065/files/72641576233.pdf
- https://cdn.shopify.com/s/files/1/0432/6955/4344/files/rarijejejapisavetoj.pdf
- https://cdn.shopify.com/s/files/1/0431/8045/8144/files/narida.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_off0000a823.bind5c556aac8b374884187af7daa0fddecfb30c626601b7637f224f6eaf7b3ce60 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA823 | 5080 bytes |
font_01_sfnt_off0000b96b.binc30f744dbba33f6e0ba7bbf94f425402ce36173db13c999f86e09983f34f4667 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB96B | 11844 bytes |
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