MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many pointing to a known malicious redirector infrastructure at 'ttraff.ru'. The document body, though heavily obfuscated, includes the same redirector URL and several Shopify URLs, suggesting a link farm designed to obscure the true destination. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=generally+accepted+accounting+principles+definition+pdf In PDF document text
- http://files.calvinmasculpts.com/uploads/1/3/0/7/130775223/xupojule.pdfIn PDF document text
- http://files.cocoamoy.co.uk/uploads/1/3/2/6/132682976/5933367.pdfIn PDF document text
- http://files.culturallyresponsivesustainedteaching.com/uploads/1/3/0/8/130874102/8549555.pdfIn PDF document text
- http://files.979wdmg.com/uploads/1/3/0/7/130775979/cf634dd3e9038.pdfIn PDF document text
- http://files.livshairandbeauty.com/uploads/1/3/0/7/130775352/6200347.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/1/0431/9058/3464/files/spider_man_into_the_spider_verse_coloring_pages.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3491/8558/files/47888641650.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3701/5719/files/rainbow_table_attack.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4178/2946/files/74323373287.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6409/8970/files/bugisozelosizokube.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4956/5853/files/gujixipexopivilujitawilim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1774/6070/files/atlas_anatomy_human_body.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0944/1953/files/xibekuboruvejovedaja.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2175/2731/files/ape_author_publisher_entrepreneur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2153/9240/files/portuguese_to_english_phrases.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0006/9283/files/93215865915.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4029/1486/files/10517160906.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_off00006dd7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DD7 | 5456 bytes |
SHA-256: 31837922d3c9fb712b4b22da5a8f7199d5b70aa2ada5b06d39f7578dbd2197dd |
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font_01_sfnt_off00008087.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8087 | 10360 bytes |
SHA-256: c5c27c19f7ffd3b303c3b755cd216e4ce3de74a6c69f3c1055823404811f554a |
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