MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to a redirector infrastructure, indicating a link farm or phishing attempt. The document body and heuristics suggest a social engineering lure to install a browser extension or update, which is a common method for malware delivery. The ML classifier strongly indicates maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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/pify?keyword=vsphere+6.+5+u3 In PDF document text
- http://files.trnsetters.com/uploads/1/3/1/0/131071166/rewegijowonaru.pdfIn PDF document text
- http://files.cheapskatesclub.net/uploads/1/3/1/0/131070367/117a49ef3039.pdfIn PDF document text
- http://files.johnholladayart.com/uploads/1/3/1/4/131453249/favikane.pdfIn PDF document text
- http://files.saveekuriforest.com/uploads/1/3/1/3/131383791/bijiselifivino_winaw_jaxobuwu.pdfIn PDF document text
- http://files.andrologyamerica.org/uploads/1/3/1/0/131069869/kaziwokes_juzava.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/67142307476.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34680977850.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8135/1839/files/electrical_technology_by_bl_theraja_vol_2_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9602/3975/files/latex_beamer_templates.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9105/0137/files/44423914348.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8317/7885/files/nomimujifolatotuveti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9114/0510/files/maruzizavumorumoseko.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2464/5272/files/ipl_2020_schedule_full_match.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5866/7430/files/xavodo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6640/9639/files/walokakigamumiritifedivaj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4819/6506/files/acidimetry_and_alkalimetry_titration_in_non_aqueous_titration.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2139/4343/files/public_finance_n6_textbook.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4637/8404/files/tijikutejujo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7780/2911/files/jofenufurumotisogisesabew.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c13b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC13B | 4640 bytes |
SHA-256: 5057a4b6dbf73b51e1a29832113247a96f05c16627fb65f9a0d460949e1025ae |
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font_01_sfnt_off0000d10c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD10C | 12544 bytes |
SHA-256: 1ba487bd543e06c1a519478b6e866430d2a786eb31fc2f3328ab9f6d562b39b0 |
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font_02_sfnt_off0000f9c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9C7 | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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