MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/wb?keyword=white%20noise%20full%20book%20pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links. The document body, though heavily obfuscated, suggests a lure related to a 'book pdf'. These factors indicate the primary intent is to redirect users to malicious infrastructure, likely for phishing or further malware delivery.
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=white%20noise%20full%20book%20pdf In PDF document text
- http://files.heroesbnb.com/uploads/1/3/0/7/130776812/782c598c7.pdfIn PDF document text
- http://files.joshamayo.com/uploads/1/3/1/4/131452867/3ddd99b4fecd.pdfIn PDF document text
- http://files.sacketschamber.com/uploads/1/3/1/4/131438582/xeronur-gosutateziduk-busitib-vagatas.pdfIn PDF document text
- http://files.verduemedia.com/uploads/1/3/1/8/131871859/fujigagudutujotez.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://fijimisu.files.wordpress.com/2020/06/kepalob.pdfIn PDF document text
- https://jefunalas.files.wordpress.com/2020/07/vularefitipojofixem.pdfIn PDF document text
- https://xejolaxutibu.files.wordpress.com/2020/06/74663044587.pdfIn PDF document text
- https://japirugalad.files.wordpress.com/2020/07/42571509364.pdfIn PDF document text
- https://wabufalij.files.wordpress.com/2020/07/87591381828.pdfIn PDF document text
- https://nalibavur.files.wordpress.com/2020/06/gezerovosub.pdfIn PDF document text
- https://juxisaw.files.wordpress.com/2020/06/66823245803.pdfIn PDF document text
- https://rerazudo.files.wordpress.com/2020/06/7298163179.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8273/5006/files/fowikebepexazetedelunala.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8058/1274/files/96208573515.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4826/4089/files/62303589708.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3314/1149/files/97144144638.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wugituvunajobi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1321/8210/files/xaziporimiwenakuka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4997/5959/files/xizurobuwa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4484/8295/files/5261093395.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7547/7416/files/risesatarofelepikovopa.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_off0000b1b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1B8 | 4920 bytes |
SHA-256: 4802e18480cec34bfcb3a1d27b9a4b931be4ddcfab8aac469f08f718e139b956 |
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font_01_sfnt_off0000c275.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC275 | 10392 bytes |
SHA-256: 45cf26359a111587c100d00be800554f64c2db0d3362de6387636bb4c34fa691 |
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