MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains a URL that appears to be a lure for downloading a book. The PDF_SEO_LINK_FARM heuristic indicates a large number of links, suggesting a link farm used for SEO manipulation or distributing malicious content. No scripts were extracted, but the presence of malicious links points to a phishing or redirection attack.
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/wix?keyword=amor+a+cuatro+estaciones+libro+desca
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/0047a4_de6ca58107504b7b86e02b7466722fca.pdf
- https://static.usrfiles.com/ugd/b8c837_439ca287ba404a629e4fd1e99a16ca19.pdf
- https://static.usrfiles.com/ugd/b8c837_825bd7d1a2074e9fba7e7e164ce6d92f.pdf
- https://cdn.shopify.com/s/files/1/0429/7634/6266/files/vavelatoratosuzewaji.pdf
- https://cdn.shopify.com/s/files/1/0437/5996/0218/files/imperative_form_of_venir_french.pdf
- https://cdn.shopify.com/s/files/1/0431/6997/2392/files/27920239944.pdf
- https://cdn.shopify.com/s/files/1/0431/8570/1025/files/aula_internacional_1_nueva_edicion_libro_del_alumno_gratis.pdf
- https://cdn.shopify.com/s/files/1/0433/4950/8246/files/bubbas_menu.pdf
- https://cdn.shopify.com/s/files/1/0433/2588/2518/files/nofujo.pdf
- https://cdn.shopify.com/s/files/1/0430/6750/6849/files/kubivutafogi.pdf
- https://cdn.shopify.com/s/files/1/0433/7549/3271/files/naseve.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_off00005ee4.bin3c742a3eaeb7a0ca4a95e67eb66526932cc3c60af14f6d7689183343118c915a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EE4 | 5216 bytes |
font_01_sfnt_off0000707a.bind45f3f96e48c65cebf487473bd848ddaf25f44c926260bec784fa29514478fc2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x707A | 11876 bytes |
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