MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious File
The PDF contains a large number of embedded links, with one pointing to a known malicious redirector. The document body is heavily obfuscated but contains the same URL as the redirector. The presence of numerous external PDF links suggests a link farm or SEO manipulation tactic, potentially leading to 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.com/wix?keyword=examen+ingles+1+eso+global+pdf
- https://static.usrfiles.com/ugd/b8c837_042c7a517b0643419b96d90e413b3267.pdf
- https://static.usrfiles.com/ugd/b28561_0b561588d06d4c29ac10f8a91c7b3a4b.pdf
- https://static.usrfiles.com/ugd/b8c837_1e3d2afce0414796b97d8b1b9369c023.pdf
- https://static.usrfiles.com/ugd/b8c837_de82ef8dd8774e5a86d629f3711181a5.pdf
- https://static.usrfiles.com/ugd/b8c837_0ec49a0ee4824ad0905838b2e0b8662a.pdf
- https://static.usrfiles.com/ugd/b58d21_66488e8d023a450985d81955ca665b6e.pdf
- https://static.usrfiles.com/ugd/67e251_6a6548c3b83e44348e2ddd0fa9ae391b.pdf
- https://static.usrfiles.com/ugd/d7ba0f_f3d49b990e9e4bf086f86755d258c64c.pdf
- https://cdn.shopify.com/s/files/1/0437/8843/5613/files/7488093546.pdf
- https://cdn.shopify.com/s/files/1/0435/6420/4193/files/universal_crpc_bare_act.pdf
- https://cdn.shopify.com/s/files/1/0437/1634/6007/files/creative_photo_collage_editor_app.pdf
- https://cdn.shopify.com/s/files/1/0438/1828/7266/files/evowars._io_mod_apk.pdf
- https://cdn.shopify.com/s/files/1/0427/4959/1718/files/54606406215.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_off00005c59.binffeec3397fbdde3920bad50fb8d4763f8ed2aa20c853a722f5732fb54be119fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C59 | 5480 bytes |
font_01_sfnt_off00006ef5.binb61376dc4a23be21a7609e67911733acbb2a1668fbad66ab73129d3cf1d2ba01 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6EF5 | 10360 bytes |
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