MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document employs a common lure of providing educational material to trick users into clicking malicious links. The primary redirector URL, https://ttraff.com/wb?keyword=nelson%20math%20grade%207%20textbook%20pdf, is identified as malicious. The document also contains a large number of embedded links, many pointing to Shopify-hosted PDFs, suggesting a link farm or SEO manipulation tactic to obscure the malicious intent. The ML classifier strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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.com/wb?keyword=nelson%20math%20grade%207%20textbook%20pdf In PDF document text
- http://files.headrushtv.com/uploads/1/3/2/6/132681194/1635519.pdfIn PDF document text
- http://files.phemanitoba.ca/uploads/1/3/1/4/131438002/5152560.pdfIn PDF document text
- http://files.mail.rustictreasuresjewellery.com/uploads/1/3/1/8/131856698/1a4035f9e.pdfIn PDF document text
- http://dutesij.hostessjobitaly.com/uploads/1/3/1/8/131856772/zilapin.pdfIn PDF document text
- http://files.southwestcactusshop.com/uploads/1/3/2/7/132711999/e7b3dc9467d.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/1/0446/2919/6963/files/purepodaletenofomodirap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1095/6196/files/alleen_op_de_wereld_boek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1604/5222/files/xaxunukamigasu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8374/9781/files/stoger_condor_supreme.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8122/7672/files/vuzetizikixuridudipiri.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7070/8125/files/agile_exam_questions_and_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4763/3575/files/86325847632.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8107/8686/files/persona_3_social_link_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/6757/8270/files/pavewavimutib.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_off000052d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x52D3 | 5776 bytes |
SHA-256: 7214ba9c04e1d5f378eb0a536790656ec934fd98c4593a2d75da160ebbc99b75 |
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font_01_sfnt_off0000665d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x665D | 10192 bytes |
SHA-256: 9ed4d86f7bff97fd144ef0124297dcef54323b0be75c18748197c78a6ec37c9c |
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