MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple URLs, many of which point to compromised websites or disposable hosting, suggesting a phishing or malware distribution attempt. The 'Browser extension / update installation lure' heuristic indicates a social engineering tactic to trick the user into installing malicious software. The embedded JavaScript likely facilitates the download or execution of a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9906
Heuristics 8
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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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://sintellect.ru/Repository/file/nonerufusupukapatozi.pdf In PDF document text
- http://nesthomes.in/userfiles/file/42715910883.pdfIn PDF document text
- https://bonafideonline.com.ar/wp-content/plugins/super-forms/uploads/php/files/c50d944ac6bf433eacc632541492e995/rijuxugani.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a159e7720bc---12426834812.pdfIn PDF document text
- http://sparkpro.lv/content/file/duwuzexizezogirarisakod.pdfIn PDF document text
- https://tessuno.com/upload/files/6118edebda468.pdfIn PDF document text
- http://autoshiftbid.com/fckeditor/userfiles/file/68216482978.pdfIn PDF document text
- http://infinijewelry.com/userfiles/file/65451244795.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bc47a370c8---memifapaxuvowemasizikalon.pdfIn PDF document text
- http://piannocreativo.com/js/new/fckeditor/userfiles/file/sofitevusika.pdfIn PDF document text
- https://gemwares.com/userfiles/file/97261552747.pdfIn PDF document text
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2e3e240226---fudurafabukelumimisumu.pdfIn PDF document text
- http://lexen.ca/userfiles/files/23120194451.pdfIn PDF document text
- http://bctlorraine.org//userfiles/file/dizonigunenijabew.pdfIn PDF document text
- http://alexhoffordphotography.com/temp/files/file/kaxej.pdfIn PDF document text
- https://xo-sound.ru/userfiles/file/56913437767.pdfIn PDF document text
- http://nextgenship.net/upload/file/20210702162525343648.pdfIn PDF document text
- http://kondicionery-ivanteevka.ru/upload_picture/file/jasulu.pdfIn PDF document text
- http://st-johnson.com/Uploadfiles/files/fokudebezo.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c3925078d98---15894749765.pdfIn PDF document text
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/16080ebc6c15ee---pogegud.pdfIn PDF document text
- http://kasaitogo.com/uploads/files/2756197163.pdfIn PDF document text
- https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5c1e80f8b6---60862319263.pdfIn PDF document text
- http://baovethanglongmb.com/upload/files/gufuw.pdfIn PDF document text
- https://topupdana.com/contents/files/mozuj.pdfIn PDF document text
- http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/b27eb0ef25d06c5c3c195c8bf3184687/85873298267.pdfIn PDF document text
- http://sibleyestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/29580567199.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=free+video+downloader+software+for+windows+xp+32+bitPDF 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_off0000ff86.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF86 | 11152 bytes |
SHA-256: ce0c90670c22b3c4c0de9999c73d2e0d1217e083dcc47cc4cc090a71189f56ae |
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font_01_sfnt_off0001199b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1199B | 18464 bytes |
SHA-256: e20fc5c907867c1b3ca42923dfb500be4b8e968662e29b025874424d81f373a2 |
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font_02_sfnt_off00014a5a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A5A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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