MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links, one of which points to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=guidelines+for+prevention+of+acute+rheumatic+fever'. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this. Additionally, the 'PDF_SEO_LINK_FARM' heuristic indicates a large number of outbound links, suggesting an attempt to manipulate search engine results or distribute content widely. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=guidelines+for+prevention+of+acute+rheumatic+fever
- http://files.jackybeyoga.com/uploads/1/3/1/4/131482988/joposevubuxogosazunu.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0437/3220/5722/files/kendrick_dna_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0435/3484/4059/files/aston_martin_vantage_2020_brochure.pdf
- https://cdn.shopify.com/s/files/1/0431/8468/5224/files/calculus_3_exam_1.pdf
- https://cdn.shopify.com/s/files/1/0436/4166/7734/files/atar_notes_books.pdf
- https://cdn.shopify.com/s/files/1/0430/8110/5575/files/ashrae_fundamentals_handbook_1997_free_download.pdf
- https://cdn.shopify.com/s/files/1/0432/2538/3073/files/fexajapijeturule.pdf
- https://cdn.shopify.com/s/files/1/0438/3876/7266/files/nonuvemu.pdf
- https://cdn.shopify.com/s/files/1/0431/0063/5290/files/how_to_convert_mp4_to_gif.pdf
- https://cdn.shopify.com/s/files/1/0433/3728/5797/files/13733485520.pdf
- https://cdn.shopify.com/s/files/1/0433/5727/4270/files/69642149547.pdf
- https://cdn.shopify.com/s/files/1/0430/7792/7072/files/71842286018.pdf
- https://cdn.shopify.com/s/files/1/0429/5216/3482/files/11171520424.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000089cb.binb818ca1bca801ec51cfaf1606b7a8c321751bcc309d3cdf1b7ca494d918b181b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x89CB | 5484 bytes |
font_01_sfnt_off00009c48.bin1c03db80ffbc1eaf47e44bd7f8613e31552f32dcf226b996267a8994f004c7d8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C48 | 10196 bytes |
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