MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a significant number of embedded URLs, with one identified as a malicious redirector. The ML classifier strongly indicated maliciousness. The document body, though heavily obfuscated, contains the title 'Graficas de las funciones trigonomet' and the malicious redirector URL, suggesting a lure to external content. The presence of a large number of links, many pointing to Shopify, indicates a potential link farm or SEO manipulation tactic.
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=graficas+de+las+funciones+trigonomet
- https://cdn.shopify.com/s/files/1/0435/7154/4225/files/87532266328.pdf
- https://cdn.shopify.com/s/files/1/0432/8960/8360/files/xisite.pdf
- https://cdn.shopify.com/s/files/1/0437/8951/6958/files/fidal.pdf
- https://cdn.shopify.com/s/files/1/0431/4185/7448/files/23046816537.pdf
- https://cdn.shopify.com/s/files/1/0432/7482/9987/files/edgar_allan_poe_cuentos.pdf
- https://cdn.shopify.com/s/files/1/0431/5018/0512/files/4614141279.pdf
- https://cdn.shopify.com/s/files/1/0432/9016/5403/files/tinuvugezovalilej.pdf
- https://cdn.shopify.com/s/files/1/0438/6455/5680/files/anaesthesia_for_awake_craniotomy.pdf
- https://cdn.shopify.com/s/files/1/0429/5560/4121/files/xemofefikanulig.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54729765263.pdf
- https://cdn.shopify.com/s/files/1/0431/6718/7108/files/string_replace_c.pdf
- https://cdn.shopify.com/s/files/1/0435/2750/4031/files/41555139926.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_off00005d8a.bin6b34fffa6100c5b24a81a0214651aaca04927c8e1e0f1769b067bc00f91d746b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D8A | 5372 bytes |
font_01_sfnt_off00006fb7.bin7e57b84d2d7e9cabd1941b5d03ef989e57a981837c5cc941e51f304e0bc501e8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FB7 | 10384 bytes |
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