MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded URLs and document body text that strongly suggest a phishing or malware distribution lure, masquerading as medical information. The primary redirector URL, https://ttraff.com/wb?keyword=estenosis%20aortica%20sintomas%20pdf, is flagged as malicious. The presence of multiple embedded links and the ML classifier's high confidence score indicate a deliberate malicious intent.
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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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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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/wb?keyword=estenosis%20aortica%20sintomas%20pdf In PDF document text
- http://files.msgarciaslaterk.com/uploads/1/3/0/8/130814308/4214941.pdfIn PDF document text
- http://files.burchcoveacademy.org/uploads/1/3/0/7/130740573/8390730.pdfIn macro / runtime command snippet
- http://files.sfabsm.org/uploads/1/3/0/7/130775859/1307895.pdfIn macro / runtime command snippet
- http://files.msgarciaslaterk.com/uploads/In macro / runtime command snippet
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2564/5211/files/26288509958.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6989/8903/files/teroti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0241/3735/files/curl_post_file.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3020/0991/files/loxivope.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8920/6174/files/pipokodemawuwidilapor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3735/0309/files/zetevazezijop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1359/3499/files/nvidia_egpu_mac.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/7699/1653/files/13908217506.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4507/7660/files/classification_of_bacteria_based_on_shape.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4722/3458/files/12140874070.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5013/8784/files/23580011677.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_off00005d3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D3F | 5228 bytes |
SHA-256: 81c2deb91d8bd680c7cf69be898e9e44615578fcc929a99bdc895d66ee52e69b |
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font_01_sfnt_off00006ef7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6EF7 | 11140 bytes |
SHA-256: c3a060983b888394a98678ed236498cbcbcc08909bfa1a6c2de95a3c3ab7629c |
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