MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics indicate the PDF contains a link farm pointing to potentially compromised websites and disposable hosting, suggesting a phishing or malware distribution scheme. The presence of numerous embedded URLs, many of which are unknown or point to suspicious domains, further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://risme.vn/files/97065836174.pdf In PDF document text
- https://pr-dienst.ch/file/97167552337.pdfIn PDF document text
- http://klwas.org/userfiles/images/file/31871762579.pdfIn PDF document text
- http://praxis-greve-polley.de/web/editor/files/79812997472.pdfIn PDF document text
- http://xn--80aafkatcapceshpicpg3h.xn--p1ai/pict/file/zetisifewab.pdfIn PDF document text
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613304bb44d68---rulime.pdfIn PDF document text
- http://nhatrangpalace.net/app/webroot/upload/files/zimoletu.pdfIn PDF document text
- https://www.igescanada.com/ckfinder/userfiles/files/tufuru.pdfIn PDF document text
- https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/henjnrffur4iam1injj7c15c77/75042960848.pdfIn PDF document text
- https://szallas-karpatalja.net/upload/xivifudidobobanawufafedud.pdfIn PDF document text
- http://studioriboldi.eu/userfiles/files/57586285976.pdfIn PDF document text
- https://vnycc.com/userfiles/file/74388377435.pdfIn PDF document text
- http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d8b711fe7a---xegeneze.pdfIn PDF document text
- http://handsonmontessoripk.com/userfiles/files/15943891635.pdfIn PDF document text
- http://vinaaquachem.com/uploads/files/xixasakededuva.pdfIn PDF document text
- http://xn--e1aazeoc7d.xn--p1ai/images/shared/file/barod.pdfIn PDF document text
- https://jin-ji.com/upload/files/tuzowusavazagazefepeg.pdfIn PDF document text
- http://bularz-auto.pl/images/userfiles/file/16831077475.pdfIn PDF document text
- https://almudenafernandez.co/ckfinder/userfiles/Files/13180215140.pdfIn PDF document text
- https://investmentskillsgroup.com/images/userfiles/file/28439434817.pdfIn PDF document text
- http://bearings-home.com/userfiles/file/rojajibiranipomudasutudeg.pdfIn PDF document text
- https://eltonltd.ru/sites/default/files/uploads/javidixurenamivopizabom.pdfIn PDF document text
- https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613abaabcc42f---xenulumolabez.pdfIn PDF document text
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613686e0f1192---29250589628.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=yuva+upnishad+bandharan+book+pdfPDF 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_off0000ca60.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA60 | 10700 bytes |
SHA-256: 96a0b77ff7fafead79e9387f05cca8001f9c3105ba4480b51c2f5fbc0c887fcc |
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font_01_sfnt_off0000e28f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE28F | 17524 bytes |
SHA-256: f2dc6228f9c6d0347d3fe90b941fe828e0a59352ab81406c213b81d6bbfaa845 |
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font_02_sfnt_off00010f88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F88 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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