MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains a large number of links to external PDFs, many of which appear to be part of an SEO link farm designed to lure users. One critical heuristic identified a link to a known malicious redirector, https://ttraff.cc/wb?keyword=tpm%20implementation%20a%20japanese%20approach%20pdf, suggesting a phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious.
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.cc/wb?keyword=tpm%20implementation%20a%20japanese%20approach%20pdf In PDF document text
- http://files.benedictegrima.com/uploads/1/3/1/3/131383329/bewep.pdfIn PDF document text
- http://files.shannondrhodes.com/uploads/1/3/0/8/130873907/1944747.pdfIn PDF document text
- http://files.michaelmaguire.com.au/uploads/1/3/0/7/130739891/8258301.pdfIn PDF document text
- http://files.emilyjordansmith.com/uploads/1/3/1/4/131453559/towuraluvav_pivekifunaw_bixedexopid_puwov.pdfIn PDF document text
- http://files.gpnart.com/uploads/1/3/1/4/131437880/5862123.pdfIn PDF document text
- http://files.committedcommunitymentors.org/uploads/1/3/1/8/131871730/02911e44baaa.pdfIn PDF document text
- http://files.espsinc.net/uploads/1/3/0/7/130739183/47343c604.pdfIn PDF document text
- http://files.pst4y.org/uploads/1/3/0/7/130738814/piwagitasesesuwatug.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://pitolutup.files.wordpress.com/2020/07/90112875022.pdfIn PDF document text
- https://fonumaputew.files.wordpress.com/2020/06/47596096937.pdfIn PDF document text
- https://dupugopawudi.files.wordpress.com/2020/07/jonoragokukan.pdfIn PDF document text
- https://tuvoromusem.files.wordpress.com/2020/07/zupodunixeju.pdfIn PDF document text
- https://ladubine.files.wordpress.com/2020/06/75798047559.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5804/4827/files/63743805477.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0103/6443/files/19058830855.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7249/5524/files/mazalupunodatimilatelusew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1537/2949/files/mogenemolosuwimunafex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7311/9143/files/medakeniwosixufidut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nifafujejugafux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2936/4885/files/78406369933.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2149/1621/files/90456351307.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2811/9706/files/36590664440.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_off0000afb1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFB1 | 5208 bytes |
SHA-256: 9015a7cd5da80a4bb95734ede224e0143da5b03cfc3416fd3bd0d2db87061272 |
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font_01_sfnt_off0000c12c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC12C | 10776 bytes |
SHA-256: 9408d113bbffc5b0ad13758dfd5019b3122ec2c53dfd8541288dabe6e2d3a8ae |
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