MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to a known malicious redirector, ttraff.ru, disguised as a textbook download. This indicates a phishing or scam attempt to lead users to malicious content. The ML classifier strongly supports the malicious verdict.
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=sjkc+year+4+english+textbook+pdf In PDF document text
- http://files.creativefinishesstudio.com/uploads/1/3/1/0/131071114/lalenubogida.pdfIn PDF document text
- http://zojej.coach102.com/uploads/1/3/1/6/131636725/jewofoz-vasogumu-kofuse.pdfIn PDF document text
- http://files.sterlingne.com/uploads/1/3/1/6/131637056/wotakitis.pdfIn PDF document text
- http://files.brooklynondemand.com/uploads/1/3/0/7/130739204/2511294.pdfIn PDF document text
- http://files.lakehouselures.com/uploads/1/3/1/3/131382955/wukopet-zefujesemep-gepawumuk-xabotitoves.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/1/0437/2057/3080/files/balboa_hot_tub_codes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9992/1315/files/fazugowexabaresageropuxe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7716/3426/files/waxomisosaxan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2912/6550/files/free_download_math_worksheets_for_grade_5.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6079/6318/files/diccionario_de_armando_hoyos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6428/5592/files/70716736208.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5350/4917/files/etodolac_400_mg_tablet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2857/8467/files/business_management_skills_notes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5040/1945/files/nezijugukagoj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2210/6271/files/que_es_metabolismo_anabolismo_y_catabolismo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5559/3110/files/limozumofimumel.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006fe8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FE8 | 16632 bytes |
SHA-256: bda9a35608dcbdcf1f53752c46c59d471f73a22874e0ba49df3b700b630a6f43 |
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font_01_sfnt_off0000a4b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA4B4 | 6060 bytes |
SHA-256: 7a89f4ce1f72d0ffa5f734101c0ba05956087670ebd935461af48b952ec8a1f8 |
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font_02_sfnt_off0000b954.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB954 | 10356 bytes |
SHA-256: 92f5c9e70fc10afce00cb39171de81ca4442423822e75a30a6f839d52ebd8133 |
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font_03_sfnt_off0000dce0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCE0 | 16092 bytes |
SHA-256: 39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67 |
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