MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links designed to appear as legitimate educational resources, but they redirect to malicious infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate a clear intent to trick users into visiting a malicious URL. The ML classifier also strongly flagged this PDF as malicious, supporting the assessment of a phishing or scam attempt.
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/pify?keyword=chemistry+book+11th+class+pdf In PDF document text
- http://files.wagnersmarket.com/uploads/1/3/1/3/131383648/lomawofex.pdfIn PDF document text
- http://files.louisebritton.com/uploads/1/3/1/1/131163736/11bcf539.pdfIn PDF document text
- http://files.tremletts-carpentry-joinery.com/uploads/1/3/0/7/130775707/nobix_nutudizo.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
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0849/1673/files/44374684718.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7188/7767/files/5th_grade_math_volume_worksheets.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4012/0733/files/voluridame.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2887/3367/files/arithmetic_reasoning_and_analytical_thinking_questions_and_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2478/5319/files/aviso_de_privacidad_estado_de_mexico.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4587/8950/files/22047559414.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5915/8940/files/duo_therm_57915_manuals.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0586/9213/files/nilefedemenarunokavevomod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8804/4447/files/xararanoxubapevusijezej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5188/4445/files/84540468453.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0443/4133/0076/files/blend_for_visual_studio_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0580/4698/files/mupedo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6154/2054/files/go_math_7th_grade_accelerated.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0168/3865/files/datitupigofobuputaj.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006159.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6159 | 5456 bytes |
SHA-256: 9f8e7ec6865b08bc1f38229c18f24995cc318bbfda1eeecf783bd484e14326e9 |
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font_01_sfnt_off000073ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73EC | 10652 bytes |
SHA-256: 419e22cf8ce81aaf7f3b1ea304162d861281523e98f93b3fae1983a8e4bb49d6 |
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font_02_sfnt_off00009852.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9852 | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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font_03_sfnt_off0000a652.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA652 | 3260 bytes |
SHA-256: ec80bf2ad916edd5855bb04d4b505d8af8ddef27f972b225c7a7e3402e08607a |
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