MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, indicating it's a phishing or trojan PDF. It contains numerous embedded URLs pointing to various domains, many of which appear to be part of a link farm designed to redirect users. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggests the document's purpose is to host a collection of links on disposable hosting for SEO manipulation or to distribute malicious content. No scripts were extracted, but the PDF structure and embedded URLs are indicative of a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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=meter+pdf+a+kindle PDF link annotation
- http://cee1968.com/ckfinder/userfiles/files/92510891495.pdfIn PDF document text
- http://wjcopy.com/upload/files/31431638810.pdfIn PDF document text
- http://heatexchangersolution.com/upload_fck/file/2021-9-17/20210917093327362129.pdfIn PDF document text
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161406efe3e4f4---70829988865.pdfIn PDF document text
- http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144179803ebb---60964414428.pdfIn PDF document text
- http://ibb-online.ru/f/file/pukik.pdfIn PDF document text
- https://nguyenvanhuongloc.vn/app/webroot/files/images/pages/files/zemet.pdfIn PDF document text
- http://sydjpg.com/images/upload/file/20210906_095627_192.pdfIn PDF document text
- https://pisangmanis.com/contents/files/39356391199.pdfIn PDF document text
- http://winfielddeli.com/ckfinder/userfiles/files/73504664901.pdfIn PDF document text
- http://vip-cond.ru/userfiles/file/3708896436.pdfIn PDF document text
- https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/16131b2b37383f---55927049747.pdfIn PDF document text
- https://relans-nn.ru/images/docs/file/31024623455.pdfIn PDF document text
- https://rajatotogroup1.com/contents/files/tawuvopobowapujuku.pdfIn PDF document text
- https://gelblighting.com/userfiles/files/70175238531.pdfIn PDF document text
- http://lateonsettay-sachs.org/userfiles/file/27713342421.pdfIn PDF document text
- http://hide-bo.com/img/tmp/file/bamozi.pdfIn PDF document text
- https://vgi-vn.vn/app/webroot/img/files/1341076280.pdfIn PDF document text
- https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/a6mkpuae5476itqgook587hpo7/41774550540.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_off0000efb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFB5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000107cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107CC | 10288 bytes |
SHA-256: 7b56110124d4ec13b23fb26bdbe10a2d01a9c6c4047f2661268b70dc5716fb5b |
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font_02_sfnt_off00011f06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F06 | 17972 bytes |
SHA-256: 91bd400ffaf0f53efd70967bf0c5822e2f4e6e4e19e09adc0d3b6fc53b4c48ce |
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