MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised WordPress uploads and disposable hosting, indicating a link farm designed for phishing or malware distribution. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or trojan delivery via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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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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 http://epodhajska.eu/UserFiles/File/17042976289.pdf In PDF document text
- https://educhina.mn/editor/files/26790271775.pdfIn PDF document text
- http://studioriboldi.eu/userfiles/files/jokujul.pdfIn PDF document text
- http://drironcat.com/images/file/tapakakezupinelinefuxu.pdfIn PDF document text
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131941130033---24936651826.pdfIn PDF document text
- http://www.miyadenthai.com/image/upload/File/56850200835.pdfIn PDF document text
- http://royalrep.com/userfiles/files/31463630311.pdfIn PDF document text
- http://pogologistics.com/ckfinder/userfiles/files/bafoleledafofubaludoga.pdfIn PDF document text
- http://cellesekorea.com/ckupload/files/15036668088.pdfIn PDF document text
- http://wildzipper.com/clients/wildzipper/userfiles/file/nujojil.pdfIn PDF document text
- http://labonscafe.com/userfiles/vixolipaxetow.pdfIn PDF document text
- http://yugreat.com/filespath/files/20210907232018.pdfIn PDF document text
- http://oletrans.sk/editor_uploads/files/73740919118.pdfIn PDF document text
- https://rosebankprimary.co.za/inc/ckfinder/userfiles/files/2682177953.pdfIn PDF document text
- https://joinvita.com/neu/userfiles/file/manuxad.pdfIn PDF document text
- http://colorfusion.us/admin/images/file/nutidotokofizagivizovoj.pdfIn PDF document text
- http://byty-pardubice.eu/UserFiles/File/xerada.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161309fad03a4d---domutev.pdfIn PDF document text
- http://sincaremedicaltour.com/js/upload/7319664274.pdfIn PDF document text
- http://1-champagne.com/blog_images/blog_/file/64193090762.pdfIn PDF document text
- http://napiarsaigh.com/images/xejulat.pdfIn PDF document text
- http://insightonafrica.in/userfiles/file/fipevitemexibisuketotuneb.pdfIn PDF document text
- https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/666b80a3a9229ec8a6509aff78d69f74/52910744486.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=link+euro+truck+simulator+2+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_off0000d438.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD438 | 10800 bytes |
SHA-256: ddba238c15cd542671dc05065ca2ab53de6aae04ba240ccb15cab399b9d800bb |
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font_01_sfnt_off0000ed28.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED28 | 18048 bytes |
SHA-256: 976333367a83cbcc2649984d47cba3a8bbbb67832d9cc647b9ea9bcbc62942ae |
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font_02_sfnt_off00011c16.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C16 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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