MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is identified as malicious by ML classifiers and ClamAV, with multiple heuristics indicating it functions as a link farm. The URLs point to various domains, including those hosted on compromised CMS platforms, suggesting a phishing or malware distribution scheme. The PDF structure itself appears to be a collection of links rather than user-readable content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://chcial.ru/uplcv?utm_term=display+code+for+android PDF link annotation
- https://www.osteopathe-montpellier-sud.fr/ckfinder/userfiles/files/doretepasuravugetezulapas.pdfIn PDF document text
- http://larrysiegellaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/sadutifi.pdfIn PDF document text
- https://exam11.menapoint.com/app/webroot/upload/files/xuvaxozeve.pdfIn PDF document text
- https://sbsoftware.ro/admin/userfiles/file/tojisosijafikowove.pdfIn PDF document text
- http://trivio.it/userfiles/files/bamazeziseruxagolofak.pdfIn PDF document text
- http://soeurs-scjboran.fr/soeurs/upload/files/92628674155.pdfIn PDF document text
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133714cd53cf---9418354130.pdfIn PDF document text
- http://studiocinti.eu/userfiles/files/daxepibesabus.pdfIn PDF document text
- http://kurier48.pl/files/userfiles/file/87577429558.pdfIn PDF document text
- https://stmarys-perthamboy.com/upload/File/xafuwodasujowenelifadi.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/8dcfb0b87e53f76ebe20b3ada36d60d6/9174127965.pdfIn PDF document text
- http://globalbizkorea.com/userData/board/file/pupikulomaz.pdfIn PDF document text
- http://xn--z92bzy85x.com/userData/board/file/94507199022.pdfIn PDF document text
- http://julianina.de/upload/file/46340649632.pdfIn PDF document text
- http://deauville.ru/files/file/82175985257.pdfIn PDF document text
- http://szjwwj.com/userfiles/file///ninekuzarugonudunolog.pdfIn PDF document text
- http://yusungchart.com/userData/board/file/detosibimigubosagaret.pdfIn PDF document text
- http://lechioutdoor.com/userfiles/file/82740012752.pdfIn PDF document text
- http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/u1qnl4avnskreo2g7ffb92fmh3/razopasowamuxawe.pdfIn PDF document text
- https://sledovani2.gpshlidac.cz/www/userfiles/files/xevurulozi.pdfIn PDF document text
- https://sassanoproperties.com/FCKeditor/file/4776373957.pdfIn PDF document text
- http://www.asiacoservice.com/file/files/3306468273.pdfIn PDF document text
- http://dietgame.net/admin/fckeditor/data/file/20210908123829.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_off0000d898.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD898 | 10632 bytes |
SHA-256: 95a8b8ff1d13ccd341f27653764850439d3d17f2fd1ef3657a5d2979df66ef5e |
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font_01_sfnt_off0000f108.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF108 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001091a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1091A | 16900 bytes |
SHA-256: cf9f32593570c48ed752dc2cf3702e9467ace6fcb626f3adb017f3245d333269 |
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