MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and heuristics indicate it is a social-engineering lure, specifically prompting the user to install a browser extension or update. This is a common tactic to facilitate credential theft or malware installation. The embedded JavaScript likely plays a role in executing the malicious payload or redirecting the user to a malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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External URI info PDF_URIPDF contains an external URL action
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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 http://www.onlinenieuwsbriefversturen.nl/gebruikers/afbeeldingen/55643565581.pdf In PDF document text
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a0d09ecd6a---94044814478.pdfIn PDF document text
- http://thuocnam.xyz/images/files/pumalebakezaxegijamarik.pdfIn PDF document text
- http://hokkaido-love87.com/app/webroot/js/ckfinder/userfiles/files/garafasedokoter.pdfIn PDF document text
- http://www.ags-sib.ru/ckfinder/userfiles/files/golekotibupofumukafat.pdfIn PDF document text
- http://ilsungwarehouse.com/userData/ebizro_board/file/44419857810.pdfIn PDF document text
- http://architettosbaffo.com/userfiles/files/96484941450.pdfIn PDF document text
- http://hunicorn.hu/userfiles/file/loroxixudurorasusapomotev.pdfIn PDF document text
- http://fsnmmaterials.com/UPFILE/userfiles/files/zerajapirudeni.pdfIn PDF document text
- http://gzky.cn/dubeite/ckfinder/userfiles/files/20210905_052921.pdfIn PDF document text
- http://studioguatta.it/userfiles/files/84511464275.pdfIn PDF document text
- http://conblocmanado.com/pics/file/27000215278.pdfIn PDF document text
- https://cet.sk/res/file/nudosemezuvigojoriwikib.pdfIn PDF document text
- http://wedding-box100.com/uploads/files/202109091920219029.pdfIn PDF document text
- http://pecsimutargygaleria.hu/files/file/zopelalitogewisidejosup.pdfIn PDF document text
- http://4els.ru/uploads/images/files/rivelarexebewusa.pdfIn PDF document text
- http://nhabe.com.vn/ckfinder/userfiles/files/89206434367.pdfIn PDF document text
- https://grandegroup.net/files/31265189072.pdfIn PDF document text
- http://kamerton.nl/clientfiles/saxapamaxomafovubew.pdfIn PDF document text
- http://15449010.com/FileData/ckfinder/files/20210913_C5C6B60B88DA5513.pdfIn PDF document text
- http://nontaromclinic.com/ckfinder/userfiles/files/zoxalamebateru.pdfIn PDF document text
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/ff1d8b8b80ca242b6a25eaef5996e13e/32896538318.pdfIn PDF document text
- http://pokeocncafe.com/uploads/files/30776532118.pdfIn PDF document text
- http://toflight.mobi/attachment/ckeditor/files/2641ed67cd8d212782dcee5cd2f7b3b2.pdfIn PDF document text
- http://icsbc.ru/fuploader/file/fuzipovubarigomovosose.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=app+not+installed+nba+2k20PDF link annotation
- 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c17e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC17E | 16560 bytes |
SHA-256: 28b4159c374fb6ec6eb8037f11cbcce6a78a80b9d47682d162479e45a3c65b06 |
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font_01_sfnt_off0000ec02.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC02 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010419.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10419 | 10740 bytes |
SHA-256: 3bdaf3458e78f9e4d3245169f531721246e9dabf30c22f61511f3a482579e042 |
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