MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious by a machine learning classifier and contains numerous embedded links. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=que+es+un+estudio+de+mercado+libros+pdf'. Another critical heuristic indicated a PDF link farm, with many links pointing to Shopify domains hosting PDF files. The document body itself is largely unreadable, but the presence of these links suggests a lure or redirection mechanism.
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=que+es+un+estudio+de+mercado+libros+pdf In PDF document text
- http://files.crowsnestpassmusicfestival.com/uploads/1/3/2/7/132740399/bifuzefubunu-nepoto-rokiwoje-riwuguf.pdfIn PDF document text
- http://files.avhscoreacademy.com/uploads/1/3/1/8/131858044/xotofolexusafe.pdfIn PDF document text
- http://files.brskl.com/uploads/1/3/2/6/132695629/jonuvetawanisir-forupawanebuna.pdfIn PDF document text
- http://wuxoxeze.chesterfieldelementarypta.com/uploads/1/3/1/8/131871864/kujefodijagidugopin.pdfIn PDF document text
- http://files.thehutchgroup.net/uploads/1/3/0/7/130738696/zazakika.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/1/0433/0684/4315/files/48766291383.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6158/2755/files/bbg_program.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/7699/1653/files/kuxuwotofumelojejokale.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sozolomunegodufedawugiwe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mojarugalemidim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0972/6888/files/68380678778.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7913/1551/files/fojigiresumubegodakagixij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2648/9249/files/dasezufexesol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3915/2535/files/mozipasivowowadesorugije.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8844/5604/files/selegirogokuwusopif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6310/6968/files/3857094201.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2100/7005/files/secret_of_mana_rom.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_off00017847.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17847 | 5504 bytes |
SHA-256: 1b304880e6e5b21a5539fce20070c2008a609d437219a034d67ffbc8499f3140 |
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font_01_sfnt_off00018adc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18ADC | 12452 bytes |
SHA-256: 20ddd64d738575edc19357a945f2f2eb2ac7b6ad4ca5d27db298c1b87a6a2260 |
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