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 redirector infrastructure or link farms. The document body text, while partially obfuscated, includes the URL 'https://ttraff.ru/wb?keyword=vegetarian%20sources%20of%20protein%20pdf', suggesting a lure to a malicious site. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a campaign to drive traffic to potentially harmful destinations.
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.ru/wb?keyword=vegetarian%20sources%20of%20protein%20pdf In PDF document text
- http://files.gretchenjude.com/uploads/1/3/1/3/131398075/5790187.pdfIn PDF document text
- http://files.valleyliberator.com/uploads/1/3/1/6/131606035/padavosagog.pdfIn PDF document text
- http://files.vexsens.com/uploads/1/3/0/7/130775846/waforumuwanaxogudo.pdfIn PDF document text
- http://files.wyomingparkumc.com/uploads/1/3/1/3/131379168/mijirem.pdfIn PDF document text
- http://files.restauranthibiscus.com/uploads/1/3/0/7/130776841/5106130.pdfIn PDF document text
- http://files.patriciagodden.com/uploads/1/3/1/4/131483019/5adf2.pdfIn PDF document text
- http://files.helpsaveourhistory.com/uploads/1/3/1/4/131437091/rikebajafok-dokumudezani-fusex.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://vabogojup.files.wordpress.com/2020/07/xomopalisapoto.pdfIn PDF document text
- https://zorevuz.files.wordpress.com/2020/06/daruzatojalavowab.pdfIn PDF document text
- https://titunejerok37025062.files.wordpress.com/2020/07/fusukibujogesopaz.pdfIn PDF document text
- https://lamaretuxiz.files.wordpress.com/2020/06/72393757222.pdfIn PDF document text
- https://vosafeviba.files.wordpress.com/2020/07/rapuwubigaxadovalugad.pdfIn PDF document text
- https://jetufaru.files.wordpress.com/2020/06/fesadonimubareka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49839171509.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jedufejaselikaruratemop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98455436519.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96328102714.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kuzizurogepibisomagin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/norojakibi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90554838216.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_off000090ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x90BA | 5136 bytes |
SHA-256: 9e9139fc0a0288d170a9abcee4ec4c7a5bd70569a81680005ccb5e01ec65e6d9 |
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font_01_sfnt_off0000a243.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA243 | 10100 bytes |
SHA-256: 1ce8dabc26734eb9bbb258b4817491af7c1a8d4f53f96418081a78504c22f348 |
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