MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://faprosid.com/file/logapidixirevijamejuji.pdf In PDF document text
- https://makiriaszto.hu/ckfinder/userfiles/files/58229118989.pdfIn PDF document text
- http://ozkayalartrans.com/userfiles/file/zejosiginufexopuze.pdfIn PDF document text
- https://travelworld.ro/userfiles/file/4557832233.pdfIn PDF document text
- https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/3f944e82f3745a60e6833427b58ff46f/76495429368.pdfIn PDF document text
- http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/a5e16a49c53805193f7be7919f748b4a/13613331280.pdfIn PDF document text
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160738a2d65921---92184385788.pdfIn PDF document text
- http://bakineshr.az/ckfinder/userfiles/files/siwirexavivirimozabotuj.pdfIn PDF document text
- http://execdentalclinic.com/uploads/ckfinder/userfiles/files/fuvilule.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8b01b7a7af---xidatojonakubegekikidawes.pdfIn PDF document text
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160747e97ec77b---jumuvutejevadomofepef.pdfIn PDF document text
- http://josepholszowka.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/59946951889.pdfIn PDF document text
- http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607595cccec76---22686814720.pdfIn PDF document text
- https://bamfieldrental.com/userfiles/file/53168926144.pdfIn PDF document text
- https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/115b4a1ef157b940a891e3f97b7b1687/kazomotirulo.pdfIn PDF document text
- https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/35e330265279c9ec65c72a2d12302067/rexakubowol.pdfIn PDF document text
- https://bohemiamaestro.com/webpagebuilder/ckfinder/userfiles/files/guxejetaxiguzuka.pdfIn PDF document text
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ed4dd246b0---pelarezo.pdfIn PDF document text
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094d8cc5289f---8800377566.pdfIn PDF document text
- http://www.pattyn360.com/upload/forum/files/xeseruluwipozon.pdfIn PDF document text
- http://driver-jazda.pl/upload/file/57273897753.pdfIn PDF document text
- https://yingzhaoliuart.com/upload/file/53144637706.pdfIn PDF document text
- http://k-yoga.org/file_upload/spaw_upload/file/20210505030410.pdfIn PDF document text
- https://augsburger-dartliga.de/uploads/file/matalimesofotekuwim.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=mathematical+aptitude+questions+and+answers+pdf+in+tamilPDF 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_off0000f6c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6C2 | 11208 bytes |
SHA-256: 9dfbec6296a52ff2b5adc67ca708d4f6168bd3ecc4970723fcdfae6cb1fbbe7e |
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font_01_sfnt_off000110a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110A3 | 18024 bytes |
SHA-256: 0d6ed6cd02964bdeb49cd928594543aac4cd8eb8737b166c47815e2c6946e806 |
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font_02_sfnt_off0001407c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1407C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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