MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file exhibits characteristics of a link farm, embedding numerous links to other PDF documents. One of these links, 'https://ttraff.ru/pify?keyword=biografia+anisio+teixeira+pdf', is identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The presence of a link farm suggests an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes.
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=biografia+anisio+teixeira+pdf In PDF document text
- http://lodiveg.edible-s.com/uploads/1/3/0/7/130776167/fabakesa.pdfIn PDF document text
- http://gisenami.knutsonresidentialdesign.com/uploads/1/3/2/8/132816202/7945010.pdfIn PDF document text
- http://zezal.rockrivertownship.org/uploads/1/3/2/7/132740649/lidagipupakibise.pdfIn PDF document text
- http://files.outspire.com/uploads/1/3/2/6/132680962/gimal-dojekawuw-sinekekaneg-ginoba.pdfIn PDF document text
- http://files.growwithease.com/uploads/1/3/1/3/131379591/masazeseno-modixet-jonixemagu.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/1/0434/4417/5013/files/advanced_learners_oxford_dictionary_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3675/3570/files/13729927598.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1649/3976/files/zibiluvuvedodomow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4581/3414/files/budapest_metro_map_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vidabuvuwegorowomilamum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0453/4692/files/sojatisirabex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8176/8864/files/mesuxejufegokixu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5742/2229/files/nufunew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4230/7239/files/loliburafibuzeneg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6301/7629/files/87295666582.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4286/4289/files/88570668720.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3531/0752/files/boss_katana_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/84712881745.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6556/5589/files/jeremy_bentham_utilitarianism.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2794/6904/files/20069445468.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_off000096a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x96A5 | 5296 bytes |
SHA-256: 102e5be69d1f273ca7b88cf7c83a690ac49fd5c2f85087cf730d55f85d296457 |
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font_01_sfnt_off0000a8af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA8AF | 2236 bytes |
SHA-256: 6a77f955d39b9d81e75477a2b3a68a06f90d7b352a411c8fd057aba46c531b2e |
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font_02_sfnt_off0000b2c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2C6 | 12564 bytes |
SHA-256: 294ea398efffd8bdc235d1b0e8792d9ce731166d83ff7ff7eaa4cd59c4a7b7dd |
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