MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, many hosted on compromised or disposable domains, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically identified as a phishing trojan. Although no scripts were explicitly extracted, the PDF structure and heuristic firings point towards the use of embedded JavaScript to facilitate redirection to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 6
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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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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://crysiq.ru/uplcv?utm_term=solution+pre+intermediate+student%27s+book+pdf PDF link annotation
- http://thegioicamdo.com/upload/files/19813079317.pdfIn PDF document text
- https://tidymoney.com/ckfinder/userfiles/files/73411204355.pdfIn PDF document text
- http://bodybybodyology.com/ckfinder/userfiles/files/81319504861.pdfIn PDF document text
- http://zafirkort.com/uploads/files/87758147442.pdfIn PDF document text
- https://fond.ru/userfiles/file/30146166387.pdfIn PDF document text
- http://imosa.asia/uploads/files/202109052304581980.pdfIn PDF document text
- http://studiosaletta.it/userfiles/files/saduz.pdfIn PDF document text
- https://samngaimarble.com/html_upload/file/tedepumejexawafisilot.pdfIn PDF document text
- http://aylincinarli.com/fckfiles/file/besuturilegegerakudafusup.pdfIn PDF document text
- https://netron.pt/app/webroot/media/files/zafegifog.pdfIn PDF document text
- http://ssss-sangam.com/userfiles/file/50763687579.pdfIn PDF document text
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/341ae64f42d9192f263db7b93b77c91a/29026205965.pdfIn PDF document text
- http://www.mbk-montage.nl/ckfinder/userfiles/files/ruvizofodezejem.pdfIn PDF document text
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16132b30157d71---texadisufawa.pdfIn PDF document text
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16139e056654d5---77635491957.pdfIn PDF document text
- http://menifee.hanasushichoice.com/uploads/files/vezuzodegarelofojetuxaj.pdfIn PDF document text
- https://aksukartela.com/images_upload/files/woxovati.pdfIn PDF document text
- http://studioarchoggianiepartners.it/userfiles/files/givima.pdfIn PDF document text
- http://soepcentrale-dekeyser.be/userfiles/file/94036490578.pdfIn PDF document text
- https://escaletravel.com/userfiles/files/98107564609.pdfIn PDF document text
- http://adamlegal.com/userfiles/file/86759232397.pdfIn PDF document text
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/16136950b53781---sopetila.pdfIn PDF document text
- http://sochi-polyana.com/ckfinder/userfiles/files/25510183654.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_off0000b980.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB980 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d192.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD192 | 17256 bytes |
SHA-256: 90534a90c7c80f6cdb07bd12a3747be058a1a1f7c3df0d68e71b1db8aa44eed2 |
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font_02_sfnt_off0000fe6e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE6E | 11100 bytes |
SHA-256: 5a0112bc67c89f4aa1aa7d6087bc118343d629ab4f49770a6e5a73b5f6357afb |
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