MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, 'https://ttraff.ru/pify?keyword=mathworksheets4kids+ordering+integers'. Another critical heuristic flagged the PDF as a link farm, with numerous links hosted on cdn.shopify.com. The document body contains text related to 'mathworksheets4kids ordering integers' and includes the malicious redirector URL and a Shopify URL, suggesting a lure to potentially malicious content.
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=mathworksheets4kids+ordering+integers In PDF document text
- http://files.becican.com/uploads/1/3/1/0/131070212/tadoliluvibu_tovefomiral_tikeladodi.pdfIn PDF document text
- http://files.irfannooruddin.org/uploads/1/3/0/7/130776478/7101025.pdfIn PDF document text
- http://files.willowcreekdevelopment.com/uploads/1/3/1/4/131438676/f3c52a906.pdfIn PDF document text
- http://files.faeriean.com/uploads/1/3/0/7/130739510/ff7a2d.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0431/6823/5675/files/sideginagomimokevam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5428/5479/files/5639628208.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0453/3600/2715/files/nulebatul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3419/7666/files/border_patrol_entrance_exam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8833/0396/files/rerafiremi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1952/5534/files/nekudokunibosefuzusilotor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2032/8865/files/kiwenekajerilutovaji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6857/1299/files/1239234755.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wifufokamavobopizevotug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4442/0246/files/gezinokasuzuzewipijemega.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8153/9489/files/80640233392.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9954/6009/files/vapogupo.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000060bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60BF | 5092 bytes |
SHA-256: 3725943c56a28aa55f7cb4cb9d4fa69076f9d81da4b2e22158eac6ac175dd5d5 |
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font_01_sfnt_off00007220.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7220 | 10616 bytes |
SHA-256: 32eef30587a96f7557344219c02dc0394bbbb11f29c7a87d4516ae766c705880 |
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font_02_sfnt_off00009657.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9657 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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