MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a significant number of embedded links, with one critical heuristic identifying it as a PDF link farm. The primary malicious link, https://ttraff.ru/pify?keyword=clasificacion+de+los+canales+de+distribucion+pdf, suggests a redirection to potentially harmful content. The document body itself is heavily obfuscated and contains metadata indicating it was generated by wkhtmltopdf, a tool often used to create PDF documents from web content, further supporting the link farm hypothesis.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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.ru/pify?keyword=clasificacion+de+los+canales+de+distribucion+pdf In PDF document text
- http://files.paulayersart.studio/uploads/1/3/0/7/130738722/navudipobebol.pdfIn PDF document text
- http://files.armandalegmusic.com/uploads/1/3/1/4/131408103/bd8709.pdfIn PDF document text
- http://tijefazip.andytheargumentativearchaeologist.com/uploads/1/3/1/4/131483281/d6ec0c7fc5392.pdfIn PDF document text
- http://files.jolysgardencentre.ie/uploads/1/3/1/4/131406321/miwakikanaxate.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3550/8387/files/traumatic_brain_injury_definition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6612/9574/files/zofuxe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9655/6191/files/force_mass_acceleration_problems_with_solutions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6103/2598/files/sadazafefejejepebosuze.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0530/3205/files/14944502225.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8482/3205/files/wulejiduwokoligodofaxej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7656/7711/files/8887514353.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5943/7975/files/53691659039.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9373/7118/files/57438666111.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5620/9819/files/3161892953.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8273/5006/files/ateten_gmlek_roman_pdf.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000065c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65C6 | 5196 bytes |
SHA-256: d1250417c4f7c9283be7142df5e4e16f8c15848685122cff52b33ed82af963cf |
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font_01_sfnt_off0000776f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x776F | 10920 bytes |
SHA-256: 0bac0fe15b5358e3dfdec00d236c203278b9c73f8045894e5bec24f401642bff |
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