MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is often used to redirect users to malicious websites. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a large number of links to disposable hosting, suggesting a phishing or spamming operation. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://aldaserwis.pl/ckfinder/userfiles/files/mudopapelami.pdf In PDF document text
- https://cyberbirddog.com/userfiles/files/59466573010.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147ec1141341---linujipe.pdfIn PDF document text
- http://chpcentre.com/files/file/gogagalezalereraxus.pdfIn PDF document text
- http://shinies.ru/img/lib/file/82056518735.pdfIn PDF document text
- http://pxmonastery.org/CKEdit/upload/files/62382188561.pdfIn PDF document text
- http://www.ondebiz.com/userfiles/file/92026288790.pdfIn PDF document text
- http://vevo.keresztessyoptika.hu/elemek/file/48404092148.pdfIn PDF document text
- http://seowonbattery.com/files/fckeditor/file/1772282301613e26606ed62.pdfIn PDF document text
- http://brno-skoleniridicu.cz/ckfinder/userfiles/files/zuvirolavirizakimodivofed.pdfIn PDF document text
- https://surupaceanu.ro/ckfinder/userfiles/files/16772644320.pdfIn PDF document text
- http://stopguepes72.fr/userfiles/file/90307629713.pdfIn PDF document text
- https://www.domosystem.gr/ckfinder/userfiles/files/xoboxexekidoweva.pdfIn PDF document text
- https://wigs4less.net/nbloom/fckuploads/file/17201015681.pdfIn PDF document text
- https://getadoc.in/ckfinder/userfiles/files/15932910980.pdfIn PDF document text
- http://sva-jeanroze.com/xmedia/file/melaze.pdfIn PDF document text
- https://www.greenlakecruises.com/ckfinder/userfiles/files/40690067670.pdfIn PDF document text
- https://paardenwelzijnscheck.nl/app/webroot/files/ckeditor_files/files/xikesuvupefusejidusugam.pdfIn PDF document text
- http://zerosquareonline.com/file/76519461842.pdfIn PDF document text
- http://tko.wavedev.net/img/files/files/37683218866.pdfIn PDF document text
- http://brenderup.ro/mm/file/liponuwulofisi.pdfIn PDF document text
- https://orig-shop-gsm.ro/ckfinder/userfiles/files/88608853167.pdfIn PDF document text
- http://carneiro-sa.pnh.pt/js/ckfinder/userfiles/files/98713704593.pdfIn PDF document text
- http://archbot.pl/files/file/getodipapowibunotazona.pdfIn PDF document text
- https://www.poolsrus.com.au/application/third_party/ckfinder/userfiles/files/kopuf.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=add+emergency+contact+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_off0000daa0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAA0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f2b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2B7 | 10592 bytes |
SHA-256: eb094dbdfe0faeaa59607dfca720efeba69b5c36c41e844a3bd83c24262b71a9 |
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font_02_sfnt_off00010ab1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AB1 | 17572 bytes |
SHA-256: a2d83a5b82cf0b2119631d7fece7db8348fe82df47edaa4ead7c0a842bb5a9aa |
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