MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier as malicious and contains numerous embedded links. One critical heuristic indicates the presence of a PDF link to known malicious redirector infrastructure, specifically 'ttraff.ru'. Another critical heuristic identified a PDF link farm, with many links pointing to shopify.com domains, suggesting an attempt to obscure the final malicious destination. The document body contains the URL 'https://ttraff.ru/pify?keyword=surface+area+of+a+cyclinder' and a link to 'somerurunem.pdf' on shopify.com, reinforcing the redirection and link farm findings.
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=surface+area+of+a+cyclinder In PDF document text
- http://files.conservationtales.com/uploads/1/3/2/8/132814306/3385757.pdfIn PDF document text
- http://poledele.milesformoms5k.org/uploads/1/3/1/4/131406686/nofewenewexozoxujini.pdfIn PDF document text
- http://files.bwaltonwrites.com/uploads/1/3/0/7/130776599/8371195.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/1/0433/0687/7080/files/somerurunem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8795/3053/files/ncert_class_7_science_notes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5915/8940/files/ariens_11528le_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8900/1638/files/mojukiruzel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1415/9521/files/fetogipibuko.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4903/3627/files/ppsspp_gold_pc_full.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0459/8824/9757/files/california_performing_arts_theatre_san_bernardino_ca.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9244/3303/files/advanced_reading_comprehension_test_with_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3728/5797/files/lesajesizunamit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3786/7687/files/greater_soul_gem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0765/5579/files/acura_tl_awd_manual_transmission_for_sale.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0668/7394/files/twitter_videos_on_mobile.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2063/9646/files/solawapofinepumiwep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3081/4626/files/83069444831.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_off00005dfa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DFA | 5040 bytes |
SHA-256: 55fa0028d901a9f62dc4b7ced3f230b2b57bff0bbbbb003bbceaf089c7c6b68f |
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font_01_sfnt_off00006f2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F2B | 9748 bytes |
SHA-256: 6e901e317d89371dc4b5ce9493789f7414d67e053afbceb4c8d1b122495de0ab |
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