MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged as malicious by an ML classifier and contains numerous embedded links. One of these links, 'https://ttraff.com/pify?keyword=pulmonary+hypertension+classification+guidelines', points to known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains this URL, suggesting it is a primary lure. The presence of a link farm indicates a likely attempt to distribute malicious content or conduct phishing operations.
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=pulmonary+hypertension+classification+guidelines
- http://files.marcdurand.net/uploads/1/3/1/3/131380308/cbc6f0c.pdf
- http://files.jaxwoodworkers.org/uploads/1/3/2/3/132303270/c34aa6.pdf
- http://files.amaefresnomadera.org/uploads/1/3/1/4/131407233/pululetarogir.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71061356311.pdf
- https://cdn.shopify.com/s/files/1/0430/6436/1113/files/15868254037.pdf
- https://cdn.shopify.com/s/files/1/0431/7154/5237/files/84118091133.pdf
- https://cdn.shopify.com/s/files/1/0434/1871/4264/files/beginning_node._js_book.pdf
- https://cdn.shopify.com/s/files/1/0432/4678/0566/files/puwelexipusijogerikufez.pdf
- https://cdn.shopify.com/s/files/1/0431/9323/7665/files/56438328453.pdf
- https://cdn.shopify.com/s/files/1/0434/3490/1671/files/xopofotizoruralo.pdf
- https://cdn.shopify.com/s/files/1/0439/0486/0328/files/celebrity_rehab_presents_sober_house.pdf
- https://cdn.shopify.com/s/files/1/0434/6655/5557/files/biluwodi.pdf
- https://cdn.shopify.com/s/files/1/0431/0941/7127/files/53648222015.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_off0000609a.binbbf8d1c4791bbafd32d01e1d63d9ec592600a32991ed54b1fb353f8bfbbef248 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x609A | 5672 bytes |
font_01_sfnt_off000073b9.bina664fc8d92322e3156f3aba45618e32794570c1ab09f290e5d5b6a52970c247c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73B9 | 9548 bytes |
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