MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to external resources, a common tactic for SEO link farms and redirecting users to malicious sites. One critical heuristic firing indicates a direct link to a known malicious redirector at 'https://ttraff.com/wb?keyword=linear%20separability%20in%20neural%20networks%20pdf'. The document body, though heavily obfuscated, also contains this URL and numerous other PDF links, reinforcing the attack pattern of luring users through a deceptive document.
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.com/wb?keyword=linear%20separability%20in%20neural%20networks%20pdf In PDF document text
- http://files.augsburgtoledo.org/uploads/1/3/0/7/130776886/tifemowegajo.pdfIn PDF document text
- http://files.iwstreecare.com/uploads/1/3/2/7/132740479/wogupu-zukokitoruwogog-zikezugufada-pubuzesilas.pdfIn PDF document text
- http://ribojuzal.nickboocock.com/uploads/1/3/2/6/132681556/duxikipazosiz.pdfIn PDF document text
- http://files.fforegon.org/uploads/1/3/0/9/130969703/8459230.pdfIn PDF document text
- http://files.mcrudin.com/uploads/1/3/1/3/131398187/bisemurezo-jumixol-rumavaf-zidatoluzipipub.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/1/0433/4757/4949/files/megafosen.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9980/7126/files/90704106643.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4488/1059/files/87501895987.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4869/5958/files/what_is_nper_in_excel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6589/2261/files/90968347003.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/8626/3960/files/27593084864.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7857/2450/files/83887443705.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3840/7845/files/annexure_d_for_minor_passport.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6913/6284/files/conditions_of_marriage_in_islam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2167/2356/files/zoxabatulifevipipuru.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000057a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x57A6 | 5372 bytes |
SHA-256: 108f7a344a71bff43db4ed459f161211eafa8dd0089b2bb3a715f9a71fd0570a |
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font_01_sfnt_off00006a0c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A0C | 10740 bytes |
SHA-256: b9a02486763f50275272393f551e757c51d0c9d707f8c6ee1b4e038a7a3714f4 |
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font_02_sfnt_off00008efe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8EFE | 16204 bytes |
SHA-256: 7b409c340078342871d25afff08905e57020809e2bc8ca3773b6f897f80384b1 |
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