Malware Insights
The PDF file was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.club/wix?keyword=ejercicios+de+datos+agrupados+resueltos', which is identified as a malicious redirector. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, including 'https://cdn.shopify.com/s/files/1/0433/0346/9221/files/tutagelelu.pdf'. This suggests a campaign leveraging SEO poisoning or phishing tactics.
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.club/wix?keyword=ejercicios+de+datos+agrupados+resueltos
- https://cdn.shopify.com/s/files/1/0433/0346/9221/files/tutagelelu.pdf
- https://cdn.shopify.com/s/files/1/0433/6504/0282/files/15748617972.pdf
- https://cdn.shopify.com/s/files/1/0431/1928/0288/files/wonadugobozuruxofuper.pdf
- https://cdn.shopify.com/s/files/1/0428/3269/1367/files/aprende_a_dibujar_paso_a_paso_chicas_manga.pdf
- https://cdn.shopify.com/s/files/1/0432/8567/6192/files/zamirexawanewunugavomama.pdf
- https://static.usrfiles.com/ugd/b8c837_ef897c7ff52441d5a2edf9cb7f65979b.pdf
- https://static.usrfiles.com/ugd/b8c837_712dbd5c204d4b4094da27ff0538d1a6.pdf
- https://static.usrfiles.com/ugd/b8c837_126fc4e8036b4a018433c4911e9352bf.pdf
- https://static.usrfiles.com/ugd/b3bc21_079c2a33bf4b4aebb3b3b0495c60365b.pdf
- https://static.usrfiles.com/ugd/7c3584_8a7c3017d6bb459180ae1e02966bdbd9.pdf
- https://cdn.shopify.com/s/files/1/0428/8466/1407/files/40210893871.pdf
- https://cdn.shopify.com/s/files/1/0447/0053/2889/files/almacenamiento_ptico_en_informatica.pdf
- https://cdn.shopify.com/s/files/1/0429/3863/0300/files/44705906697.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_off00006431.bin29256c2ac70f72b9acdddd6e2d91dd85046336059c5e649608de35347bc52c9b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6431 | 5272 bytes |
font_01_sfnt_off00007633.bin387d12f15756a6241828f874419a573f2f0e659502a94f63abd546c24138b85a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7633 | 11576 bytes |
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