MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many of which point to a redirector service (ttraff.ru) that is associated with malicious activity and SEO link farms. The document body, though heavily obfuscated, contains text related to chemistry and a URL that mirrors the redirector's query parameter, suggesting a lure. The ML classifier strongly indicates maliciousness, and the presence of multiple PDF links to external resources supports the attack pattern.
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.ru/pify?keyword=chemistry+atomic+structure+questions+pdf In PDF document text
- http://files.idealformsnyc.com/uploads/1/3/0/8/130813859/ab44336dc432f9.pdfIn PDF document text
- http://putur.northbristolrfc.co.uk/uploads/1/3/1/4/131406149/c89d9d615b.pdfIn PDF document text
- http://tulini.thebeachcompanysc.com/uploads/1/3/0/7/130739204/7b8dd55425761c3.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0431/7190/5698/files/44930432911.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8184/2341/files/rodebu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5032/7454/files/mejalozitemabavedulowap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0691/7799/files/the_divide_2011.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6938/2557/files/zetib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4976/2459/files/demelebizemajixug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2625/0901/files/vipibi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4372/4186/files/34332485683.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/8772/2648/files/36014779873.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0012/6885/files/34758283836.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7208/6435/files/footlocker_wheaton_mall.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3475/4728/files/69681856932.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4930/3720/files/xewofupajotunokefizuzal.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005013.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5013 | 5496 bytes |
SHA-256: 985ff5a8863fb327b8439f333387f0434ac4c905cccc09962416c16bdd437e4c |
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font_01_sfnt_off0000629d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x629D | 10120 bytes |
SHA-256: cf8ee15553f6e03d30157c696ea135a0b03fad7be6bc3dbc8e70e0ac4ba3f852 |
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font_02_sfnt_off00008549.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8549 | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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