MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a significant number of embedded external links, a technique often used for SEO spam or to redirect users to malicious sites. The heuristic PDF_SEO_LINK_FARM specifically indicates a mass external PDF link farm, and PDF_MALICIOUS_REDIRECTOR_LINK points to a known malicious redirector. 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=altered%20mental%20status%20pdf In PDF document text
- http://files.english.shenfieldlearning.com/uploads/1/3/1/4/131409017/5483724.pdfIn PDF document text
- http://files.calvarywelcomesyou.org/uploads/1/3/1/1/131164558/673f861ecf9c54.pdfIn PDF document text
- http://files.zandertherapeutics.com/uploads/1/3/1/4/131437649/sijunumezarek.pdfIn PDF document text
- http://files.greatestpearlwithin.com/uploads/1/3/1/3/131383318/292646.pdfIn PDF document text
- http://files.embracemyanmar.com/uploads/1/3/2/6/132682110/0fec159e294f8.pdfIn PDF document text
- http://files.harborcitythreads.com/uploads/1/3/0/9/130969160/sobulumof.pdfIn PDF document text
- http://files.bolivarcoc.com/uploads/1/3/1/0/131069764/xipewisugajasiled.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://rigumiroviwe.files.wordpress.com/2020/07/63587562683.pdfIn PDF document text
- https://guwapowir.files.wordpress.com/2020/07/gubizeritovunaxowa.pdfIn PDF document text
- https://risifijog.files.wordpress.com/2020/06/71339834393.pdfIn PDF document text
- https://xelalum.files.wordpress.com/2020/07/74828172655.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5698/8311/files/62658613941.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3885/0719/files/2639040851.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2308/9307/files/kakepefawosagasare.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2656/2722/files/62681745341.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81108552740.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13139855908.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2790/6206/files/31141997970.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7403/5607/files/85702521347.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_off0000ee42.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE42 | 4900 bytes |
SHA-256: 1da0d9d982ba5f2e959c43c19e478ced953a599c2cf82360f20c0c01e7fb480f |
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font_01_sfnt_off0000fec2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEC2 | 10196 bytes |
SHA-256: 2600f7b9bc076d916d51580f80e250511401620b5ee954d913f3ba23f33741b4 |
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