MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to SEO redirectors, with a primary malicious redirector identified. The document body, though heavily obfuscated, contains a reference to the malicious URL, suggesting an attempt to disguise malicious content as a legitimate document. The ML classifier strongly indicated maliciousness, supporting the conclusion that this PDF is designed to redirect users to harmful sites.
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=miocardiopatia+dilatada+pdf In PDF document text
- http://files.realty33nj.com/uploads/1/3/0/7/130775116/18d5fc8e8dbe8d9.pdfIn PDF document text
- http://files.authorkimfox.com/uploads/1/3/1/3/131379612/kemunafejebos_furugamoros_vagububike_wivosoruda.pdfIn PDF document text
- http://files.pacificcountycovid19.com/uploads/1/3/1/8/131871583/5438642.pdfIn PDF document text
- http://topevivi.crowningtouchnails.com/uploads/1/3/1/4/131407089/1737881.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/1/0437/0163/3177/files/cable_stayed_bridge_construction.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52135332303.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0159/3502/files/paviwodimezokeludulidi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3513/0018/files/algebra_worksheets_year_7.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35679391278.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1551/1964/files/ielts_academic_word_list_synonyms.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8345/4871/files/54028170052.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8075/1006/files/navy_blue_jacket_manual_25th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3723/7146/files/vukazis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1734/6965/files/tomupunoxidelajetixeba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7797/5712/files/capital_city_of_all_countries.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4609/9349/files/factorizar_trinomio_cuadrado_perfecto.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000a91d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA91D | 4976 bytes |
SHA-256: ad5e3d299a8972d587bc0a9d4bd74dc5d48d58b381a215ce17fa826edb40ae61 |
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font_01_sfnt_off0000ba29.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA29 | 11028 bytes |
SHA-256: 94ea5f4fe973257c3c0ae5c340d5cd8f3687532ec8af6f04f98371260fdcf343 |
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font_02_sfnt_off0000dfd5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFD5 | 16304 bytes |
SHA-256: 2ac62f6fd0cf432b1a426a4050734915edae892539fbf82e39b32ad9df43bc89 |
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