MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and external URIs, indicating malicious intent. The 'SE_BROWSER_INSTALL_LURE' heuristic strongly suggests a social engineering tactic to trick the user into installing malicious software or extensions. The ML classifier and ClamAV detection further support the malicious classification, pointing towards a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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 https://bela.geekers.tw/upload/file_folder/file/dikaxaburerevotutuk.pdf In PDF document text
- https://kotata-zlin.cz/obr/clanky/file/48702871305.pdfIn PDF document text
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613c228c58ab4---4124904470.pdfIn PDF document text
- http://finalbrand.cz/upload/file/99470872113.pdfIn PDF document text
- http://crabandclaw.com/uploads/files/14945078938.pdfIn PDF document text
- https://tarzminder.com/resimler/files/22468224000.pdfIn PDF document text
- http://akcihlar.cz/userfiles/file/duzup.pdfIn PDF document text
- http://salkim.com/userfiles/file/6243180559.pdfIn PDF document text
- http://tbff-bygg.se/img/files/pitabepuvogozuwut.pdfIn PDF document text
- http://thriftstorewebsites.net/flash/thriftstorewebsites.net/file/puxujomovesogudabijet.pdfIn PDF document text
- http://aviapartner.biz/js/ckfinder/userfiles/files/vulamotikoxukoworoke.pdfIn PDF document text
- http://sethhukumchandschool.com/userfiles/file/34964912243.pdfIn PDF document text
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/9dee031c83f300f1a64188ac5357dc03/jogiwovilu.pdfIn PDF document text
- https://ww150003.linebot.net/upfile/files/20210904063708.pdfIn PDF document text
- https://yennenga.org/business_school/uploads/file/namavazevuwesovobi.pdfIn PDF document text
- http://bfr-bialapodlaska.pl/userfiles/file/gufiguxulumenuwekeziw.pdfIn PDF document text
- http://kripasec.com/userfiles/file/nepeputaseboxetokedoto.pdfIn PDF document text
- http://modernplating.com/userfiles/file/tiwunifizol.pdfIn PDF document text
- https://postelezmasivu-olomouc.cz/ckfinder/userfiles/files/73489100605.pdfIn PDF document text
- https://creteotels.gr/FCKeditor/userimages/file/vowewusilotimi.pdfIn PDF document text
- https://esterkins.de/ckfinder/userfiles/files/luxekajavusekemek.pdfIn PDF document text
- https://gmnavarra.es/ckeditor/files/runegawatagefabimit.pdfIn PDF document text
- http://xn--365-pn7mwb654m2qn.com/ckupload/files/78648929187.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=where+do+i+put+apk+files+on+my+androidPDF 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_off0000f8fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8FD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001110f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1110F | 20172 bytes |
SHA-256: 0d11fb0799c6f59227981c08c9b3bb855fcef603551d0d8bcbb62a52e60faa1c |
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font_02_sfnt_off0001456c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1456C | 11064 bytes |
SHA-256: 3d2ace3ba23eb44c4bbeeb3b0ec449a3d008d6662ff5cc65505d5e7db94cb167 |
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