MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 User Execution: Malicious File
T1059.001 Command and Scripting Interpreter: PowerShell
The PDF file contains a lure related to a 'certificate of registration of marriage form' to trick users into clicking a link. This link redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. Additionally, the PDF exhibits characteristics of a link farm, with numerous external PDF links, suggesting an attempt to distribute further malicious content or engage in SEO manipulation. The SE_BROWSER_INSTALL_LURE heuristic indicates the document also attempts to trick users into installing software, a common tactic for malware delivery.
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.ru/pify?keyword=certificate+of+registration+of+marriage+form+e+pdf In PDF document text
- http://files.libbymourant.com/uploads/1/3/2/6/132696174/lukezi.pdfIn PDF document text
- http://files.soccerplayingmomct.com/uploads/1/3/0/9/130969965/8c3e74b9577928f.pdfIn PDF document text
- http://kopami.davidawestbrook.com/uploads/1/3/2/6/132681352/5605257.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/1/0429/9220/5978/files/runodawesifok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/9311/2472/files/al_azkar_an_nawawi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0384/4520/files/naguvederabesosuxatede.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3127/3365/files/buteladajokajumarabeli.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3957/9546/files/grammaire_allemande_facile.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1143/1838/files/medicine_dictionary_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7028/3173/files/77832196881.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pewobaropelizovijekozuji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4567/3377/files/coffeescript_iterate_object.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2790/7239/files/nivotaduraxalij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6856/3351/files/vubesetelezoxixuribegugar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6128/8868/files/carbon_footprint_questionnaire.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/4389/4934/files/69080226809.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1290/6405/files/86671610857.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7159/4911/files/72433216162.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_off00007503.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7503 | 5348 bytes |
SHA-256: f820751ec992b22c85bd07ad46120cf3f7b39026d8dfe780ed18665e911c7020 |
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font_01_sfnt_off00008716.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8716 | 10076 bytes |
SHA-256: 425d82c10bdf02236f156897887c4ef0c6e51552d28c3e4336ea635edb7a68cb |
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