MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged as malicious by ML classifiers and ClamAV. It contains embedded JavaScript and a significant number of external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The embedded JavaScript likely facilitates the exploitation of vulnerabilities or directs users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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=how+to+set+a+ringtone+on+an+android PDF link annotation
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130217f406e5---94918790581.pdfIn PDF document text
- http://robotsuk.com/luckingbros.co.uk/userfiles/files/dolerawamoduwazumitot.pdfIn PDF document text
- http://yidaig.com/uploadfile/file/20210905074620.pdfIn PDF document text
- https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/545c6e642b83deb8a75b41c1c1ebc7d3/wejevojizavalalinadibodow.pdfIn PDF document text
- http://braghieriarchitettura.com/userfiles/files/bikuf.pdfIn PDF document text
- http://kruengrangthai.com/files/files/sajilolulu.pdfIn PDF document text
- https://nationalshield-uae.com/userfiles/files/547090868.pdfIn PDF document text
- http://antitumor.org/filespath/files/20210923050605.pdfIn PDF document text
- https://mpksieradz.pl/upload/file/20208847064.pdfIn PDF document text
- http://abovomedia.hu/_user/file/86151664758.pdfIn PDF document text
- https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/f9b33bb071dbf7fb544312edbe33e22b/13011477982.pdfIn PDF document text
- http://manuale.aziendasulweb.it/userfiles/files/vekukasazom.pdfIn PDF document text
- https://ywint.com/ckfinder/userfiles/files/1631727769.pdfIn PDF document text
- https://aprenda-atdi.com/uploads/files/38257727953.pdfIn PDF document text
- http://musclecar-taps.com/js/upload/files/43973757801.pdfIn PDF document text
- http://foxgraphics.paulsfashion.in/files/xenakazuluvirudob.pdfIn PDF document text
- https://pecintajp.com/contents/files/vanosuxuga.pdfIn PDF document text
- http://americansemitruckparts.com/d/files/50715524803.pdfIn PDF document text
- http://nbc.ua/design/pic/file/16056140117.pdfIn PDF document text
- http://fabriziocar.it/userfiles/files/ritakatetuxitizesex.pdfIn PDF document text
- http://www.enredmail.com/templates/files/idCliente_/file/97382030493.pdfIn PDF document text
- https://franchisebusinessadvisors.franchisebrokerwebsites.com/broker-site/files/files/panavirutub.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_off0000acfd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xACFD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c514.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC514 | 10456 bytes |
SHA-256: 399cd7b5dfd843ac55fee5fd980c63113fde7ef40ab1ef8f137e3cbd2d0be83f |
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font_02_sfnt_off0000dcbf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCBF | 15664 bytes |
SHA-256: 38d53cbd09c5ec3862e29113b9460a886d52411afbd93bd53e9d3b9113cd6059 |
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