MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains multiple embedded links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to be a lure for an 'Edexcel a level physics revision guide'. The presence of numerous links to external PDFs, many hosted on Shopify, suggests a link farm or SEO manipulation tactic to drive traffic to malicious sites. The ML classifier strongly indicated maliciousness.
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.com/pify?keyword=edexcel+a+level+physics+revision+guide In PDF document text
- http://files.blossomsbygeorgia.com/uploads/1/3/1/4/131410952/dogiluwu-ruzuri-wiwoxa.pdfIn PDF document text
- http://xupalatax.fidostudio.com/uploads/1/3/2/7/132710507/381a4.pdfIn PDF document text
- http://files.printsolutions.info/uploads/1/3/1/3/131379301/5803439.pdfIn PDF document text
- http://files.happypositivesuccessful.com/uploads/1/3/0/7/130738969/mofarobosedibogifaf.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/1/0430/5757/8137/files/49964418464.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2403/9592/files/paruwigub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1664/0919/files/medical_bills_on_credit_report_2019.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5207/2086/files/67139380201.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3673/5645/files/72020294677.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2806/0059/files/79748366509.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1769/9477/files/67408798075.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8365/2506/files/infographic_template_powerpoint_a4.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4488/6936/files/understanding_and_using_english_grammar_workbook.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3786/7687/files/8692340512.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0549/9803/files/virtualbox_shared_folder.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0958/6846/files/average_value_calculus_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/22271122494.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_off00006639.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6639 | 5524 bytes |
SHA-256: e436101004047f2371f8b79c484257a8e7de64a1667dee114f6e4ee889829e00 |
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font_01_sfnt_off00007904.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7904 | 10320 bytes |
SHA-256: 37870ea2741a164c58432c9b647deb480313bc636624dcf6a2e252bef1e260b6 |
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