MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of embedded URLs, many of which point to compromised CMS uploads and disposable hosting. This indicates a link farm designed to lure users to malicious or phishing sites. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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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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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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://medvor.ru/uplcv?utm_term=how+does+messenger+work+on+android PDF link annotation
- http://issaproject.com/app/views/panel/ckfinder/userfiles/files/nepatirefexabilozu.pdfIn PDF document text
- http://wksx.top/images/userfiles/file/tesuzapirar.pdfIn PDF document text
- http://ettorebelfioreliutaio.it/userfiles/files/32787447644.pdfIn PDF document text
- http://studiotecnicodama.it/userfiles/files/77458749666.pdfIn PDF document text
- https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/161358ad2d9b70---nibogolovaxotuzoz.pdfIn PDF document text
- http://zeci.nl/im/image/subawupelapotubagujojox.pdfIn PDF document text
- http://buffagiuseppeinfissi.com/userfiles/files/11768973839.pdfIn PDF document text
- https://gdaniec.com/upload/files/pamatuw.pdfIn PDF document text
- http://thuexe7cho.vn/upload/files/vekofefizilej.pdfIn PDF document text
- http://barrybusiness-crm.com/ressource/devis-photo/files/41563274694.pdfIn PDF document text
- https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/ba54037aa6fb1f0deb5ba8e5fc774b5a/xuwatugibik.pdfIn PDF document text
- http://auburn-properties.com/userfiles/files/80245765647.pdfIn PDF document text
- http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/93bdcaf827949722cac3a8fa32f732b8/pinunotegikaxekaga.pdfIn PDF document text
- http://massiimo.com/piceditor/file/wonenedop.pdfIn PDF document text
- http://goldenstarhotel.vn/images/uploads/files/fikesuvi.pdfIn PDF document text
- http://ukonlinedirect.com/userfiles/files/65017429795.pdfIn PDF document text
- http://xn--80aaae7amexjfdlfdfg.xn--p1ai/files/file/nikotelixosopuziloz.pdfIn PDF document text
- http://fs-select.com/images/blog/file/37142150579.pdfIn PDF document text
- https://www.pepinieres-gey.fr/ckfinder/userfiles/files/28397901068.pdfIn PDF document text
- http://neuroxl.com/images/file/36141993945.pdfIn PDF document text
- https://resttour.com/images/userfiles/files/2461217401.pdfIn PDF document text
- https://lederstuehle-shop.de/ckfinder/userfiles/files/nofusepamawokiduvokimezi.pdfIn PDF document text
- http://hrzservices.com/uploadfiles/file/mawubadunewuvati.pdfIn PDF document text
- 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_off0000b094.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB094 | 10616 bytes |
SHA-256: c9ca72947f17d46930a79168af478865fbb548fad61cfa6bd84b052a09e3416c |
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font_01_sfnt_off0000c88f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC88F | 15296 bytes |
SHA-256: 680dd3d40326ed9f8072fd5e3318607dea09a34b2a753e4435cb5606259751c6 |
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font_02_sfnt_off0000ef36.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF36 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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