MALICIOUS
222
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple links to redirector infrastructure, specifically `https://ttraff.ru/pify?keyword=dotnet+new+from+template`. This redirector is likely used to funnel victims to malicious sites or download further payloads. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous SEO-optimized links suggests an attempt to broaden the reach of this lure.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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=dotnet+new+from+template In PDF document text
- http://files.olygarfieldpta.com/uploads/1/3/1/3/131379477/d3b5b167ee7.pdfIn PDF document text
- http://puwin.librariesofhopestore.com/uploads/1/3/2/7/132740405/sukunod-sabumasiwo.pdfIn PDF document text
- http://files.hightstownhsbands.org/uploads/1/3/1/8/131872070/tozuzuvixup.pdfIn PDF document text
- http://files.bigbearboardshop.com/uploads/1/3/1/6/131636612/pixuk.pdfIn PDF document text
- http://files.thehappyfits.com/uploads/1/3/0/8/130874676/f5819e9583a1587.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/1/0428/6906/3836/files/nuluwubepetibunukidopewa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0936/7461/files/joliset.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70686619693.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9765/2376/files/sodufolatemifit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5312/9640/files/advanced_glycation_end_products.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9345/8070/files/71252395001.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2704/6301/files/reribuwubow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3849/7185/files/15547306366.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1793/4747/files/upsc_zoology_toppers_notes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7620/6238/files/38292797901.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_off0000651b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x651B | 4960 bytes |
SHA-256: e5c8d0169647e27a5eb1d58e44c116472f26b9547dce4ffd3a09d44860a17975 |
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font_01_sfnt_off000075f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75F5 | 9892 bytes |
SHA-256: c9e0b9ec9c29113a2e3554fd8846853432050c46e5d1b5c069a51e853b7b86e5 |
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