MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for executing malicious code. It also contains a large number of external URIs, many of which point to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The ClamAV detection and ML classifier further confirm its malicious nature, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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=the+key+to+living+the+law+of+attraction+pdf+free+download PDF link annotation
- http://ramenzoni.eu/userfiles/files/xasekujevi.pdfIn PDF document text
- https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/phtg8fjovimjgn11anuc4e0l8m/rekakudeb.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613711318b617---jodoxilara.pdfIn PDF document text
- https://1tlstar.com/storage/uploads/files/88253540233.pdfIn PDF document text
- https://clubon.top/uploads/files/45483819611.pdfIn PDF document text
- http://motocams.cz/ckfinder/userfiles/files/41123428844.pdfIn PDF document text
- http://madinagirls.com/easydo%20v2.00/files/uploads/mezaxosu.pdfIn PDF document text
- https://tort-art.ru/userfiles/file/joleniluvevezi.pdfIn PDF document text
- http://rybarict.cz/webpagebuilder/ckfinder/userfiles/files/81540706158.pdfIn PDF document text
- https://mkserwis.pl/userfiles/file/77800103834.pdfIn PDF document text
- http://hurtglass.pl/upload/file/zoxopurede.pdfIn PDF document text
- https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/161466041e2c6c---wonozovunin.pdfIn PDF document text
- https://leuphuotcamap.com/uploads/image/files/97307265116.pdfIn PDF document text
- https://holcom-wd.holcom.vn/webroot/img/files/19148784799.pdfIn PDF document text
- http://gold-carsales.com/js/upload/files/60981832053.pdfIn PDF document text
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1614260e80be61---2103747235.pdfIn PDF document text
- http://alles-vom-schreiner.de/userfiles/file/benisusejixorafa.pdfIn PDF document text
- http://vektor-bezpeki.com/userfiles/files/73956947872.pdfIn PDF document text
- http://marketingnews.fr/images/file/jufaluvususuxe.pdfIn PDF document text
- http://wangguanhardware.com/userfiles/file/xofodifelinusakesikasura.pdfIn PDF document text
- https://bnbtravels.com/ckfinder/userfiles/files/54336126846.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_off0000d9a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9A0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f1b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1B7 | 11052 bytes |
SHA-256: 9a8a4ea94095f0a151621056bdde5c95670de256df48914da753a9870189ab2f |
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font_02_sfnt_off00010b47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B47 | 18008 bytes |
SHA-256: 149573f73188176054aadc0801416943aad170754a53995ca689f9f7b5378660 |
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