MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristic analysis indicates the document functions as a link farm, directing users to multiple external URLs hosted on potentially compromised or disposable domains. These links are likely intended to facilitate phishing attacks or distribute further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://synerhu.ru/uplcv?utm_term=introduction+for+assignment PDF link annotation
- http://eshop-kocicinadeje.cz/files/file/puwenosuvivow.pdfIn PDF document text
- http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3a44fed533---peligotumizotebepemefez.pdfIn PDF document text
- https://beldapromosyon.com/calisma2/files/uploads/liwupesuze.pdfIn PDF document text
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160bfd5722316e---15754492655.pdfIn PDF document text
- https://ural-aiti.ru/admin/ckfinder/userfiles/files/fiviji.pdfIn PDF document text
- https://shian-jin.com/UserFiles/files/97542562218.pdfIn PDF document text
- http://usmleworkout.com/files/file/11219590366.pdfIn PDF document text
- https://ndmoyun.com/calisma2/files/uploads/sejakulafa.pdfIn PDF document text
- http://liqaa-lb.com/files/userfiles/files/73124164049.pdfIn PDF document text
- http://momsystem.ru/public/file/wiwoj.pdfIn PDF document text
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160729c7183dd3---96434195717.pdfIn PDF document text
- http://caytrong.vn/Images_upload/files/3498395647.pdfIn PDF document text
- http://rheinmotel.com/userfiles/file/6258083499.pdfIn PDF document text
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b22a6fb8c10---73687937383.pdfIn PDF document text
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/31efe25b9217464336c91c584bec1baf/78409017587.pdfIn PDF document text
- https://preciseenergygroup.com/media/buromivurisezanu.pdfIn PDF document text
- https://cfbadalona.net/ckdata/files/gixuvaji.pdfIn PDF document text
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/008611fed80c49cc45717c04b3eda321/43911827508.pdfIn PDF document text
- http://orthocarecentroortopedico.it/userfiles/files/17032051464.pdfIn PDF document text
- http://www.contal-farmer.com/uploads/files/zifaluwexatapo.pdfIn PDF document text
- http://clubselectionvoyages.com/images/file/gokevopanukexedotabezon.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_off0000e9ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9BA | 17992 bytes |
SHA-256: 4e3f41929fe82a38cfc468df4a521ff07e4a04c2ab19d7c6c92a7ad7a9a650c2 |
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font_01_sfnt_off00011813.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11813 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001302a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1302A | 10824 bytes |
SHA-256: 3ada41b0dd28a7bb3de69c93e18e1163a58d0f08224d9cac2fc3e60e1bb40297 |
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