MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm designed to mimic search results, leading to a malicious redirector. The primary malicious URL is https://ttraff.cc/pify?keyword=kurtz+foundations+of+abstract+mathematics+pdf, which is likely used to obscure the final destination. The ML classifier strongly indicated maliciousness, and the PDF structure itself contains numerous links to external PDFs, suggesting a SEO poisoning or link farm attack.
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.cc/pify?keyword=kurtz+foundations+of+abstract+mathematics+pdf In PDF document text
- http://files.dogodogo.ru/uploads/1/3/1/3/131380495/zumifogekowizute.pdfIn PDF document text
- http://files.loudlibertarian.com/uploads/1/3/1/4/131483830/kopot.pdfIn PDF document text
- http://files.africamadeintheshade.net/uploads/1/3/2/8/132814935/desuzata-wekefakojikow-wonofavodosow-fepivu.pdfIn PDF document text
- http://files.centerassociates.com/uploads/1/3/1/4/131413485/pojuxulikinesa.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/1/0432/3606/5438/files/82723406005.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5856/9115/files/47840175401.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8151/5673/files/nasoviporegimopidolibef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8904/3358/files/74461643535.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9492/4700/files/butifu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8165/3655/files/nimopane.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5674/2046/files/98147188921.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2839/7728/files/lizesaga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0873/6928/files/72424025569.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7300/3939/files/fallout_4_weather_commands.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2550/6208/files/xefasul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5162/2305/files/rovikogevaborig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0046/1474/files/59231765607.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/3467/6133/files/additive_utility_function.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_off00008d1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D1D | 5520 bytes |
SHA-256: 4b18e65d3c43db31e761edf5d6f138e43c8a0f20517e0c03b286682152941085 |
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font_01_sfnt_off00009fbc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9FBC | 2576 bytes |
SHA-256: 2d1419103f7baca24c443a0fa032df32a06c37f6d2dc492a48115ae64bf378fd |
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font_02_sfnt_off0000a979.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA979 | 10832 bytes |
SHA-256: 01486a2d644330d23f775bf0980705c6c7da7ee4202216f4d04fbd0f08360d57 |
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