MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to an SEO redirector, specifically 'ttraff.ru', which is flagged as malicious. This suggests a phishing or scam attempt to redirect users to malicious content under the guise of providing a document. The ML classifier also strongly indicated maliciousness.
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/wb?keyword=multivariate%20time%20series%20analysis%20and%20applications%20pdf In PDF document text
- http://files.mudgleyholidayhouse.com/uploads/1/3/1/4/131453650/ba273df1.pdfIn PDF document text
- http://files.islandcitypublishing.com/uploads/1/3/0/7/130776327/monidel.pdfIn PDF document text
- http://files.ginotorres.com/uploads/1/3/1/1/131163747/timejazuw.pdfIn PDF document text
- http://files.threewellsofthesea.com/uploads/1/3/1/1/131163590/wokikor.pdfIn PDF document text
- http://files.mothersylvia.com/uploads/1/3/1/0/131071312/5391583.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/1/0434/1451/9973/files/3006672033.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6397/5842/files/79560465706.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5727/5299/files/tekifuwegabiruzimo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2256/5032/files/juketisafixixuwu.pdfIn PDF document text
- https://sanolosu.files.wordpress.com/2020/06/41966047610.pdfIn PDF document text
- https://ribuvez186628289.files.wordpress.com/2020/06/57585015965.pdfIn PDF document text
- https://bazolexadole.files.wordpress.com/2020/07/38963403707.pdfIn PDF document text
- https://laxokabe513272239.files.wordpress.com/2020/06/bafugufegizuturawopiza.pdfIn PDF document text
- https://jupudipi.files.wordpress.com/2020/07/pazaxunuxejabidef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sesolofulazige.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1681/2706/files/49160958985.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6469/6738/files/19495627222.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9573/6988/files/67422768258.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5669/3397/files/81575484487.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0645/1094/files/lidamopazigofagunudowo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9232/0161/files/pedimejimirepixax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0610/7552/files/50460511291.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_off00008368.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8368 | 5352 bytes |
SHA-256: 5fc6b61e8706ec0723d02a729f1bd7808bd74580b0061eb0b17f0a6ecb0166e0 |
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font_01_sfnt_off0000958c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x958C | 10652 bytes |
SHA-256: 3f861882123d80969f2fb23c9f1b280ee2ee53a105b42a7625d63b20d1b49723 |
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