MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, many pointing to compromised or disposable domains, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The file's structure as a link farm is a common tactic for distributing malicious content or redirecting users to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://k-newsletter.com/ckupload/files/92285309170.pdf In PDF document text
- https://posaonakosovu.com/ckfinder/userfiles/files/20112174714.pdfIn PDF document text
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/066f7fbba5ba77b1c79a2a4aabed1f69/dapalekadefedefepumanog.pdfIn PDF document text
- https://ladida.asia/sporlegen/administrator/imagetempfile/36807110578.pdfIn PDF document text
- http://www.southforconstruction.com/frontend/web/ckfinder/userfiles/files/gepepesepunob.pdfIn PDF document text
- http://trivio.it/userfiles/files/98871510030.pdfIn PDF document text
- http://yidaig.com/uploadfile/file/20210911011535.pdfIn PDF document text
- http://mrcubezpieczenia.pl/app/webroot/media/files/fivum.pdfIn PDF document text
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139c5792d118---65946635556.pdfIn PDF document text
- http://virtuozi.ru/sites/all/sites/virtuozi.ru/files/4785307121.pdfIn PDF document text
- http://snabsz.ru/ckfinder/userfiles/files/19230162946.pdfIn PDF document text
- https://polaria.cz/images/file/15183624.pdfIn PDF document text
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/ba68dceeff3dadb665bc3eacf6847946/80650619183.pdfIn PDF document text
- https://www.theknowledgeonline.com/files/lib/ckfinder/userfiles/files/wodufog.pdfIn PDF document text
- http://snsi.jp/image/news_file/43381814377.pdfIn PDF document text
- http://www.thunderesp.com/ckfinder/ckfinder.htmlfiles/jixujepaz.pdfIn PDF document text
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/cf7432d1e6fd0a085764b331ecab365b/91695751577.pdfIn PDF document text
- http://tarnava.eu/user_images/file/gojuferipovumoledudopuv.pdfIn PDF document text
- http://snap-drone.com/userfiles/file/34244753713.pdfIn PDF document text
- https://palezieux.com/ckfinder/userfiles/files/zitalupilimetidore.pdfIn PDF document text
- http://gzsjlt.cn/userfiles/file/92894101821.pdfIn PDF document text
- http://odnoklassniki-files.ru/images/uploads/files/19801614751.pdfIn PDF document text
- https://www.kiemtoandongnghi.com/public/plugins/ckfinder/userfiles/files/kojinoga.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=iphone+6s+bdPDF link annotation
- 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_off0000d7e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7E8 | 18992 bytes |
SHA-256: 9aa448538cb27c0c80365714f465ea68a65fd806e2d8634b1efdcabab61fe23c |
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font_01_sfnt_off00010a0c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A0C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012223.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12223 | 10252 bytes |
SHA-256: 3b91e0b1178bbf2d7a99759a0f27df19535506728a6c262f8ad24f3ba79594cf |
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