MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many pointing to compromised CMS upload directories or disposable hosting, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery via these links.
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 https://philabc.ru/uplcv?utm_term=6+letter+words+starting+with+y PDF link annotation
- http://www.likoda.com.tw/upload/ckimg/files/45105267267.pdfIn PDF document text
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bbe99181d7---tedolodewilap.pdfIn PDF document text
- http://lamekatus.com/uploads/ckeditor/files/73045086776.pdfIn PDF document text
- https://afmiletisim.com/resimler/files/63890655271.pdfIn PDF document text
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/c134d907291b447ab12ebcded01f0dc2/zemazuzivalalo.pdfIn PDF document text
- http://kapfenberger-schuetzenverein.at/userfiles/file/vaxigadivanogefevexejeb.pdfIn PDF document text
- http://youzedu.com/ckimages/files/20210912054819724490.pdfIn PDF document text
- http://kommunikator.nu/demo/userfiles/file///92985469628.pdfIn PDF document text
- http://saimiri.name/upload/file/18241151512.pdfIn PDF document text
- https://aimtronu.org/userfiles/file/41176407022.pdfIn PDF document text
- http://morpheus-architects.com/file_media/file_image/file/jugofokusutogoxatoragibi.pdfIn PDF document text
- http://terezmisszio.eu/files/file/29786074210.pdfIn PDF document text
- https://osakaav.com/userfiles/files/62409107470.pdfIn PDF document text
- http://knowleangling.co.uk/ckfinder/userfiles/files/wetuvimisusuros.pdfIn PDF document text
- https://winpoasia.com/ckfinder/userfiles/files/8219509072.pdfIn PDF document text
- https://darkoyunpin.com/calisma2/files/uploads/66675096416.pdfIn PDF document text
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614528dc68554---kijawejuvi.pdfIn PDF document text
- https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/7dde9d02060efab7fd455943a0fe71f0/mevaruzaxirejemuvusitu.pdfIn PDF document text
- https://ajansnigde.com/resimler/files/95517000554.pdfIn PDF document text
- https://globalcircle.club/userfiles/file/rixop.pdfIn PDF document text
- https://jerseyshorepirates.com/userfiles/files/80790108677.pdfIn PDF document text
- https://moveo-sport.pl/userfiles/file/bexasakikobejugelaxevosul.pdfIn PDF document text
- https://cortopolis.ar/userfiles/file/tiwoxopetu.pdfIn PDF document text
- https://congnghiepxd204.vn/upload/files/20828352729.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_off0000c367.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC367 | 10796 bytes |
SHA-256: 7da799db5a10f5644592cdb8c2f11da8a18671364e7ee0db02dfb15a4cf5ffdb |
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font_01_sfnt_off0000dc1b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC1B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f42d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF42D | 16196 bytes |
SHA-256: 89bc4528c1c6ba4cb40c4305e596888160e3f5b71b0dffded65952c3e3110388 |
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