MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was flagged as malicious by an ML classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body contains a URL that leads to a link farm hosted on Shopify, which in turn contains numerous links to other PDFs. The primary malicious URL identified is https://ttraff.com/pify?keyword=endnote+nature+scientific+reports, suggesting a lure to download further malicious content or redirect to a phishing site.
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.com/pify?keyword=endnote+nature+scientific+reports
- http://jetozeki.williampaulsimmons.com/uploads/1/3/0/7/130740514/6369134.pdf
- http://files.worldofmicrobiology.com/uploads/1/3/1/4/131406321/9875011.pdf
- https://cdn.shopify.com/s/files/1/0428/4999/2860/files/85093631597.pdf
- https://cdn.shopify.com/s/files/1/0437/2961/7057/files/45774680070.pdf
- https://cdn.shopify.com/s/files/1/0437/3102/6071/files/zevuzemuwirefum.pdf
- https://cdn.shopify.com/s/files/1/0436/9865/1288/files/xazeluzi.pdf
- https://cdn.shopify.com/s/files/1/0428/0742/7238/files/83429449054.pdf
- https://cdn.shopify.com/s/files/1/0432/4563/3693/files/ieee_citation_style_guide.pdf
- https://cdn.shopify.com/s/files/1/0432/1869/8400/files/graphic_design_cover_letters.pdf
- https://cdn.shopify.com/s/files/1/0430/0118/4417/files/64439401193.pdf
- https://cdn.shopify.com/s/files/1/0463/2608/7841/files/daxudamojagubeva.pdf
- https://cdn.shopify.com/s/files/1/0460/6728/6180/files/48801645669.pdf
- https://cdn.shopify.com/s/files/1/0434/5374/3270/files/8121940103.pdf
- https://cdn.shopify.com/s/files/1/0434/4869/6993/files/butterfly_burning_summary.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_off0000661b.bin161c2ac2c1cede0d8ace84035a97d914632152244bce4b78bd0e6e8258de91b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x661B | 5072 bytes |
font_01_sfnt_off00007773.binb2bf01e73471f57193cac21959f5c04cdd8f016f2f0e29cb1334fd7230ab0dee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7773 | 10488 bytes |
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