MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains numerous links designed to appear as legitimate downloads or tutorials, but they redirect to malicious infrastructure. The primary redirector URL is https://ttraff.com/pify?keyword=automata+theory+pdf+tutorialspoint, which is flagged as malicious. The document body, though heavily obfuscated, contains references to the redirector URL and appears to be generated by wkhtmltopdf, suggesting a programmatic approach to creating a link farm for SEO-based redirection.
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=automata+theory+pdf+tutorialspoint In PDF document text
- http://takekorat.graemation.nz/uploads/1/3/0/7/130775432/9104765.pdfIn PDF document text
- http://files.womensbalancehealth.com/uploads/1/3/0/7/130739212/1b7e5fa52.pdfIn PDF document text
- http://files.derrickgriffey.com/uploads/1/3/0/8/130873732/1462424.pdfIn PDF document text
- http://jitim.theartsparkle.com/uploads/1/3/1/3/131384771/b5a9929fb1f04ab.pdfIn PDF document text
- http://rumen.noblesrealtygrp.com/uploads/1/3/0/7/130775320/zuxawemisukela.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/1/0427/7082/5382/files/5th_grade_daily_math_worksheets.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6719/4021/files/windows_10_mct.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7335/3366/files/5.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2378/5370/files/12914746312.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rofan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98559129476.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2249/0532/files/pathfinder_manual_of_war.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4244/8295/files/gukudapokedizoj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7564/7128/files/49388963522.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1532/3291/files/wepumukelujobovuriz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3017/6159/files/votamosalukajiru.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9665/4489/files/veterinary_zoonotic_diseases.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3459/0878/files/19066967351.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_off00005a48.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A48 | 5372 bytes |
SHA-256: f3c84a8b77e54720fc66c8fa1b31a9783582c34df9314a163f25c5179b02f477 |
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font_01_sfnt_off00006c6e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C6E | 10432 bytes |
SHA-256: fc4c1a925ed7b75cb95b08f956e608e29ee890ef883fe6008327a209e195b58f |
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font_02_sfnt_off0000900c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x900C | 16744 bytes |
SHA-256: 4a4185597eb0ebf67fea43fa5a3d87e848c05adaa7d4aa41a9d6dbb22332dc80 |
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