MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 7
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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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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 https://ibliberia.com/ckfinder/userfiles/files/86795266067.pdf In PDF document text
- http://kfnmsz.com/upfolder/e/files/20210908195317.pdfIn PDF document text
- http://jjw-led.com/userfiles/file/95169905891.pdfIn PDF document text
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148cea5ab3b3---97499804287.pdfIn PDF document text
- http://www.park-seversk.ru/other/js/ckfinder/userfiles/files/gofaz.pdfIn PDF document text
- https://stallion-international.com/userfiles/file/waguv.pdfIn PDF document text
- http://anabakorea.jp/userfiles/file/boveja.pdfIn PDF document text
- https://locoffice.ru/userfiles/file/48329377247.pdfIn PDF document text
- http://muzycznescyzoryki.pl/userfiles/file/52297070497.pdfIn PDF document text
- https://www.iieng.org/editor/ckfinder/userfiles/files/17129714987.pdfIn PDF document text
- http://www.somdattabasu.com/fckimages/file/xawegozexe.pdfIn PDF document text
- https://jvlegacyhomerepairsmd.com/nbloom/fckuploads/file/35901380325.pdfIn PDF document text
- https://pataniforum.com/admin/jquery/ckfinder/userfiles/files/4177230426.pdfIn PDF document text
- https://cylinder96.ru/admin/ckfinder/userfiles/files/88362604922.pdfIn PDF document text
- https://lomasdelaweb.com/userfiles/2008.09/file/figomugubopalanotegazil.pdfIn PDF document text
- http://vasset.bg/userfiles/file/vomujewebifatofosinutud.pdfIn PDF document text
- https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/vlsdcqft3r29ikjl9mvgba80ah/befobif.pdfIn PDF document text
- http://pickup-ws.com/userfiles/files/gufexedanemejewinefado.pdfIn PDF document text
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614143e303a5a---8101920297.pdfIn PDF document text
- http://gdfsztal.com/uploadfile/files/4972122242.pdfIn PDF document text
- http://bienchidan.org/uploads/files/81557822995.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=sexy+live+wallpaper+for+pcPDF 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_off0000b369.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB369 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cb7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB7B | 18644 bytes |
SHA-256: ea8ed4b283f989402ddd83ef8719c7a52e5ae79f58479f77895773550836dd91 |
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font_02_sfnt_off0000fb2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB2B | 10548 bytes |
SHA-256: dc487ae6f4ebc1565187b5cc685c05b8d2003a005f383747189b3d17130c99c2 |
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