MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs pointing to various domains, many of which appear to be compromised or disposable hosting. Heuristics indicate this is a link farm designed to direct users to external content, consistent with phishing or malware distribution. The ClamAV detection and ML classifier strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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://nomylo.ru/uplcv?utm_term=shared+mailbox+android PDF link annotation
- http://saimiri.name/upload/file/zorozunonitenixomudivabo.pdfIn PDF document text
- http://instant-image.net/UserFiles/Site/File/84135008311.pdfIn PDF document text
- https://demo-calson.garment-pro.com/ckfinder/userfiles/files/sorukiwazitapaxilozova.pdfIn PDF document text
- http://altiro.nl/home/tjerk/file/4109994225.pdfIn PDF document text
- https://ashasuchikala.com/ckfinder/userfiles/files/39421107496.pdfIn PDF document text
- https://doublehair.center/upload/ckfinder/files/kamukoluvesabewolixudux.pdfIn PDF document text
- http://schoonhovensvrouwenkoor.nl/ckfinder/userfiles/files/30677575615.pdfIn PDF document text
- http://pskov.agisinfo.ru/uploads/content/files/lugezijodifok.pdfIn PDF document text
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/v1jvf5dl2aa28b2njbv5eq3evc/65239614057.pdfIn PDF document text
- https://barcelona-health.com/files/galeria/files/95343084445.pdfIn PDF document text
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614128b1e9920---89719512474.pdfIn PDF document text
- http://sobinco.cz/ckfinder/userfiles/files/23816337583.pdfIn PDF document text
- http://oprandi.it/userfiles/files/87901777754.pdfIn PDF document text
- http://icaalliance.org/filespath/files/20210907204535.pdfIn PDF document text
- http://vinhthuan.vn/upload/files/69165260961.pdfIn PDF document text
- http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613e400eb7ae8---30841718916.pdfIn PDF document text
- http://agppi99.pretty-match.com/upload/files/39098061134.pdfIn PDF document text
- https://laptoptranganh.com/data/dulieu/files/1370621461.pdfIn PDF document text
- https://sofanet.ro/ckfinder/userfiles/files/wuxov.pdfIn PDF document text
- https://inprovitbrasil.com/ckfinder/userfiles/files/64009216945.pdfIn PDF document text
- https://alves.bg/ckfinder/userfiles/files/83057307400.pdfIn PDF document text
- http://auburn-properties.com/userfiles/files/8049469143.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_off0000aca3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xACA3 | 15464 bytes |
SHA-256: bc37b3cd947cd5756a0396472a204e04881d40431d5259f5cc2153578415bbbf |
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font_01_sfnt_off0000d41e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD41E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ec35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC35 | 10564 bytes |
SHA-256: 730e13db514f5f9e813b7b2b7e1ce4bb57204b115ce8589529448675d4711af9 |
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