MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a significant number of embedded links, with one identified as a known malicious redirector. The document body, though heavily obfuscated, contains text related to a car model and the authoring application, suggesting a lure. The presence of numerous external links, many hosted on Shopify, indicates a potential SEO link farm or a method to distribute malicious content through seemingly benign hosting. The ML classifier strongly flagged this PDF as malicious.
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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PHP webshell / backdoor source high WEBSHELL_PHPThe file contains PHP server-side code with the signature of a webshell/backdoor (request input fed to a command/code-exec sink). A webshell takes attacker input from an HTTP request and runs commands/code on the server. Flagged as a malicious hacktool artifact even when carried inside a document or archive — the code does not execute from the carrier, but the file is a webshell.
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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.com/wb?keyword=2006%20saab%209-3%20manual%20transmission In PDF document text
- http://files.logosart.com.hk/uploads/1/3/1/6/131606533/bonokidufezobijariji.pdfIn PDF document text
- http://sagusa.petebarryspiritualmedium.co.uk/uploads/1/3/1/4/131408899/vonivide.pdfIn PDF document text
- http://files.gameaccess.net/uploads/1/3/1/6/131637108/d3084b3a90447.pdfIn PDF document text
- http://files.nordmanlab.com/uploads/1/3/1/4/131437693/37951c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1774/6070/files/adobe_for_mac_os_x.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/8804/7256/files/how_to_set_up_nightbot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8276/6750/files/edit_file_with_adobe_acrobat_x_pro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4819/6513/files/kannada_bigg_boss_3.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52244446143.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0427/1524/files/subokinolimuv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7476/5475/files/fadeposomezizug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6472/8479/files/paulk_workbench_plans_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8863/4263/files/kenokojuzaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5684/0354/files/tomcat_redirect_http_to_https.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4868/0089/files/practical_botany_for_gardeners.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2661/2378/files/stored_procedure_in_sql_tutorial_for_beginners.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6728/4383/files/mevoxufuvovusukikegi.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_off00007866.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7866 | 5656 bytes |
SHA-256: 9e1a489294ae52633005317d707cffe132d51d75cc92c3727287baa1bdd09887 |
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font_01_sfnt_off00008b6c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8B6C | 12304 bytes |
SHA-256: 0cf931d5fb950692821594cffef215f9f95a773c4e3f6fd472f481751bd3a2ce |
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