MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by an ML classifier and contains multiple links to redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=ecocardiograma+normal+pdf'. The document body also contains this URL, suggesting it is the primary lure. The presence of numerous external PDF links indicates a link farm SEO tactic, likely to obscure the malicious redirector. No scripts were extracted, but the PDF structure itself facilitates the redirection.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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.cc/pify?keyword=ecocardiograma+normal+pdf In PDF document text
- http://files.gardenclubofyarmouth.org/uploads/1/3/1/4/131408942/7102347.pdfIn PDF document text
- http://zitanuf.buscolibrary.org/uploads/1/3/1/4/131453574/7871622.pdfIn PDF document text
- http://files.centralbluemountainsgardenclub.com.au/uploads/1/3/1/3/131381518/wujebufuwozut.pdfIn PDF document text
- http://files.divinenaturearts.com/uploads/1/3/1/3/131380767/9204954.pdfIn PDF document text
- http://files.vision-networking.ca/uploads/1/3/2/7/132740536/101257.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/1/0436/8180/8549/files/pipebanoduvik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3264/0679/files/32690280897.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mazimuzoxoku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9634/2695/files/67556944818.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9110/7752/files/41682101369.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7096/3350/files/94677122942.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2964/0854/files/aprender_a_empreender.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vinujavezo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0933/4683/files/carbon_oxygen_cycle.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1344/7584/files/30860788218.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1098/2041/files/wojutit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8809/9993/files/mikukoxubolafu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3204/2920/files/rimakexiju.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4396/3548/files/35485654591.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87967576867.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_off00007e3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E3F | 5252 bytes |
SHA-256: 9ab4a910011294551df35855faaa5933918fe1f9ea6fd644f2a4da1924391d10 |
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font_01_sfnt_off00009010.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9010 | 16056 bytes |
SHA-256: dc99f00044b0b1053e7941339b646470971ebf7de1a4855c0ff8e9bdb33d1c4c |
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