MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs that form a link farm, pointing to compromised WordPress sites and other disposable hosting. The primary purpose appears to be directing users to potentially malicious content or phishing sites.
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=android+facetime+to+iphone PDF link annotation
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161361d95433f5---90889215150.pdfIn PDF document text
- https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145680098b08---97406682233.pdfIn PDF document text
- http://www.bash.cl/media/file/49099188908.pdfIn PDF document text
- http://land89.com/ckupload/files/xumomevolej.pdfIn PDF document text
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133ca6713799---37144589702.pdfIn PDF document text
- http://e-hematologica.pl/users/file/41369755523.pdfIn PDF document text
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/161466180b7fcc---82903639647.pdfIn PDF document text
- http://donkaew-furniture.com/ckfinder/userfiles/files/69456529897.pdfIn PDF document text
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613f5b9d4de61---zenuwer.pdfIn PDF document text
- http://01host.ru/userfiles/files/fajowivekobomizu.pdfIn PDF document text
- http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/edd57f8a104aff73a09daf7d001d3856/49758805331.pdfIn PDF document text
- http://fijiembajak.com/uploads/ck_uploads/files/pozidu.pdfIn PDF document text
- https://tanthueviet.vn/img_data/files/49379033113.pdfIn PDF document text
- http://johnmichaelharrisonlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/72372964389.pdfIn PDF document text
- http://miyagi.chi-kara.net/Upload/files/4966951351.pdfIn PDF document text
- https://dafelia.com/files/11103240913.pdfIn PDF document text
- http://jyjwqj.com/uploadfile/file///2021091102122972.pdfIn PDF document text
- http://dichvubaove.online/upload/files/73968779044.pdfIn PDF document text
- http://jullien38.com/ressource/site-image/files/56861238609.pdfIn PDF document text
- http://aerotechgroup.ru/img/outer/files/19922227800.pdfIn PDF document text
- http://shinyoungvalve.com/userData/board/file/72468110440.pdfIn PDF document text
- http://foto-preiss.at/upload_files/files/bolosenufadojiti.pdfIn PDF document text
- http://clearspace-design.com/CKEdit/upload/files/52144609164.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_off0000d03a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD03A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e84c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE84C | 17272 bytes |
SHA-256: f7d1ce99f039c706d244ce0c6ad12cb44b73d37161eed82a93b0184eaa7cc825 |
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font_02_sfnt_off000114b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114B5 | 10652 bytes |
SHA-256: 2de60555fd8bf631b2056f0304bedfff3349b426f2f648e18d9452aaf759aca9 |
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