MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded URLs pointing to a variety of domains, many of which appear to be compromised or disposable hosting. Heuristics indicate this is a link farm, a common technique for phishing or distributing further malware. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery via these links.
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://coretry.ru/uplcv?utm_term=integral+multiplication+rule PDF link annotation
- http://maekalocal.com/Maeka/UserFiles/File/fuxowejeja.pdfIn PDF document text
- http://clinicaveterinariagoitese.it/userfiles/files/53869607447.pdfIn PDF document text
- http://ingore.cn/upload/files/birijekukuzeletubaxet.pdfIn PDF document text
- http://sunnyten.net/userData/board/file/zafeluwomes.pdfIn PDF document text
- http://elmbbq.com/uploads/files/58435296102.pdfIn PDF document text
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/161363d54623b4---kobujinajid.pdfIn PDF document text
- https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/1302aa0096c20dffdafa459b09dca1bc/20428963085.pdfIn PDF document text
- https://sicurezzaips.it/uploads/file/94890911208.pdfIn PDF document text
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/16137faab5d65c---71852610695.pdfIn PDF document text
- http://flexinform.com/hirlevel/file/430214865.pdfIn PDF document text
- http://daisytalavera.com/userfiles/files/vapagerezet.pdfIn PDF document text
- http://biomehl.com/images/content/files/99625288124.pdfIn PDF document text
- http://verduciautodemolizioni.it/userfiles/file/tataxajesutujo.pdfIn PDF document text
- https://tonerihned.cz/userfiles/file/temaso.pdfIn PDF document text
- https://afmiletisim.com/resimler/files/basutofe.pdfIn PDF document text
- http://ktcz.eu/files/files/23343191539.pdfIn PDF document text
- http://diadiemvui.com/upload/files/jibakufi.pdfIn PDF document text
- http://seoaudytor.pl/userfiles/file/verokilitagax.pdfIn PDF document text
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16135f3414989c---jixipel.pdfIn PDF document text
- http://trunglamdecor.com/uploads/userfiles/file/66195088135.pdfIn PDF document text
- http://mariondhuique-mayer.com/data/file/vijoxejefalizexafer.pdfIn PDF document text
- http://kapalishakti.com/ckfinder/userfiles/files/mavupegoligegelod.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_off0000e70d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE70D | 18072 bytes |
SHA-256: 1fb86d8d2fad310450b70b542cb3f28936203c52a31de15e57e2449cd936a7fc |
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font_01_sfnt_off0001166c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1166C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012e83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E83 | 10600 bytes |
SHA-256: 838c2ce7a39ed377cb5407da438c53a36dec6206d46c6ed934eacbf04d3478bb |
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