MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link redirects to 'ttraff.com', which is flagged as a malicious redirector. The document body, though partially corrupted, contains text related to 'Estrategias especificas de aprendizaje cooperativo pdf' and the malicious URL, suggesting a lure to download further content or engage in a scam. The ML classifier strongly supports the malicious nature of this PDF.
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/wb?keyword=estrategias%20especificas%20de%20aprendizaje%20cooperativo%20pdf In PDF document text
- http://files.charlottehager.com/uploads/1/3/1/4/131453432/9cd2b68b7a2e6cb.pdfIn PDF document text
- http://files.willamettecounselingservices.com/uploads/1/3/0/7/130775974/gixafix.pdfIn PDF document text
- http://files.katrinahollowayphotography.co.uk/uploads/1/3/1/3/131398184/024673.pdfIn PDF document text
- http://files.easttexastshirts.com/uploads/1/3/1/0/131071253/5765665.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/1/0430/0357/6481/files/sadafafab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6635/8934/files/financial_accounting_theory_notes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9731/7783/files/segegajejexuxuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9201/7305/files/verukapujamivegumu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2178/6521/files/kobumixulezapa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1683/8558/files/28357343866.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0985/9999/files/12283831816.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4991/8362/files/wurexakiwafodepul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8520/9506/files/mods_para_minecraft_pe_0._9._5.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2688/9374/files/kewosuwakagimowolakita.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0446/2955/7411/files/global_asset_allocation_with_equities_bonds_and_currencies.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0016/8597/files/xejubejizagire.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6661/2130/files/sobizijir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2299/1007/files/ruwajabufudaxonel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5265/5002/files/tiwefebati.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_off000076ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76EE | 5432 bytes |
SHA-256: ee841bbaa6c7b17cd11c58be6e71886f743d115d50e1990cfee659a462827363 |
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font_01_sfnt_off00008996.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8996 | 11236 bytes |
SHA-256: 77d900df52c0f16929b7367692871e336e2173b762fb18256dded57155b55e6d |
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