MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, identified by the PDF_JS heuristic, which is a common technique for delivering malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded JavaScript likely redirects the user to a link farm, as suggested by the PDF_SEO_DISPOSABLE_LINK_FARM heuristic and the numerous unknown URLs extracted, aiming to obscure the ultimate destination and evade detection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://bankkartya.hu/js/ckfinder/userfiles/files/78405990815.pdf In PDF document text
- http://thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/kuzezogelekimisokel.pdfIn PDF document text
- https://trickapotisk.cz/webpagebuilder/ckfinder/userfiles/files/67014791980.pdfIn PDF document text
- https://sensesgrouphk.com/louis/STARKGROUP/ckfinder/userfiles/files/27267442067.pdfIn PDF document text
- https://barrierball.cl/ckfinder/userfiles/files/rogir.pdfIn PDF document text
- http://tcsklife.com/filespath/files/20210916091639.pdfIn PDF document text
- https://tssch.in/tssch/application/admin/uploads/file/wepurupifedanimit.pdfIn PDF document text
- http://kovovyroba-nosniky.cz/UserFiles/File/49366396862.pdfIn PDF document text
- http://www.leads-bd.org/app/webroot/js/ckfinder/userfiles/files/11679456156.pdfIn PDF document text
- https://debo-fit.be/userfiles/file///17976157375.pdfIn PDF document text
- https://digireg.it/upload/37595620931.pdfIn PDF document text
- http://pwharrison.com/userfiles/file/pabawug.pdfIn PDF document text
- http://a-pro-peau.fr/userfiles/file/fibodorekutasibu.pdfIn PDF document text
- http://gotoippc.com/ckfinder/userfiles/files/fowinonoxow.pdfIn PDF document text
- https://chp-travel.ir/data/file/gosagutaparuko.pdfIn PDF document text
- http://dorrstrechy.cz/UserFiles/File/83125426781.pdfIn PDF document text
- https://csn-alliance.com/data/files/kiginikegazovudaxesepagof.pdfIn PDF document text
- http://digjamaica.com/app/webroot/files/44214673571.pdfIn PDF document text
- https://quizai.com/uploads/files/wuwokexam.pdfIn PDF document text
- http://debeleven.net/UserFiles/File/ridivazuponofagajuxiteru.pdfIn PDF document text
- https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/e4cf7c103eb0c36daa2f3ec2da47bc82/lutozuzoziva.pdfIn PDF document text
- http://tunglamgarden.com/images/fck/file/vebub.pdfIn PDF document text
- https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/388f42c2e62b9b351bf9da9015ca3b7f/77888368472.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=google+maps+android+auto+offlinePDF 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_off0000d0d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0D0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e8e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8E7 | 10980 bytes |
SHA-256: 92f1b270b3f390a3392ea7b8f70fadc007ff9a69c897870dd6581a162711a8d3 |
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font_02_sfnt_off00010235.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10235 | 18812 bytes |
SHA-256: 0afc0ff4f46846b256f15d5af28d21c2b4b804cce03c907c04e80fa27ecf7959 |
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