MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external websites, including a known malicious redirector at `ttraff.ru`. The document body, though heavily obfuscated, suggests a lure related to "assembly language beginners pdf". The presence of multiple external links, including those pointing to potentially benign Shopify domains and numerous unknown domains, indicates a link farm or redirection scheme designed to lead users to malicious content. The ML classifier also strongly flagged this PDF as malicious.
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=assembly+language+beginners+pdf In PDF document text
- http://files.clairefrancessullivan.com/uploads/1/3/2/6/132695546/165993.pdfIn PDF document text
- http://files.empoweredmathematics.com/uploads/1/3/0/7/130776413/jorubisesa.pdfIn PDF document text
- http://files.treetopflowers.co.nz/uploads/1/3/1/6/131606968/f82b4d9643c38f5.pdfIn PDF document text
- http://files.dianas-gardens.com/uploads/1/3/1/4/131483445/deca061a.pdfIn PDF document text
- http://files.mercermovercompany.com/uploads/1/3/2/6/132681836/0f951389f7542.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/1/0434/4571/5109/files/sulegomewalena.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2590/7368/files/gipajajoduka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5509/5712/files/xemaponijisanuduf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6470/4665/files/mepikipepavama.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7656/6684/files/64160650.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3046/3135/files/lezigodavesabuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2571/0750/files/rifulegovonedagukam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9748/9561/files/6077606553.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6071/4904/files/29513637843.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7147/1767/files/xewazusupesotejojanutepov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4591/1709/files/tojazewokozidaxunutafiva.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1361/1421/files/tixukojaja.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1361/1421/files/5110566516.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0449/3987/files/kogijufus.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_off000077ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77EE | 5284 bytes |
SHA-256: 1e903545b8bd8dd5f027fb3dd72e705e739ae559362c088913bc4d43378b2045 |
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font_01_sfnt_off000089bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x89BD | 10116 bytes |
SHA-256: f950f1ec4cb6ccc4f9ac577639e10d7fc3d56f541a71b11261e911b2c7dd0722 |
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