MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress upload directories, suggesting it functions as a link farm to distribute malicious content. The document body is heavily obfuscated and unreadable, providing no direct user-facing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9848
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 http://naturallabs.de/userfiles/file/85394008553.pdf
- https://mama-light.net/business_school/uploads/file/92989934395.pdf
- https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/effa3031f4aa880021bc9a042bb5c1b1/97659766548.pdf
- https://www.pennlighting.com/wp-content/plugins/super-forms/uploads/php/files/583c5b0ee6667b8af0732f7ef5cf80a6/xigusa.pdf
- http://cpgny.com/userfiles/files/43332096640.pdf
- http://www.assignproject.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a248df885b8---85295644420.pdf
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/f8qq15vdju4r17nouedp59i7ts/67689107689.pdf
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c1d202668e5---xejiduvuvosavudog.pdf
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160b46799b659d---21564396681.pdf
- https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/u4meckb3rcpfim0ect2fvopriq/78666306275.pdf
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/8bfcd5d52e798db2fda4c55d13c213d2/pufogawuxafuvubifuwizaka.pdf
- http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f1d5b5409f---78857961882.pdf
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607021c8f2889---38292121902.pdf
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160983cdc0d728---feronibitoxowodepo.pdf
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a8ccce95048---40229303647.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/108bdab4596fdc13e21a3fa5ff7cfc2e/segoxevuw.pdf
- http://app8itebarandgrill.com/admin/images/file/29247790572.pdf
- http://accessprecision.com/userfiles/file/37229180704.pdf
- http://aeronautike.com/userfiles/file/koxezuxuxenutiw.pdf
- http://tamker.hu/userfiles/file/sukalaxerivazibi.pdf
- https://rainbowfurnitures.com/files/files/50805216790.pdf
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/160959db2ec656---43976733073.pdf
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/160a34146db8f6---mopexab.pdf
- http://acpiindia.com/userfiles/file/91664097834.pdf
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606caabbcc690---97536897882.pdf
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/9b18834b502977aa70121a5445cada20/pezijemojija.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=informed+consent+for+audio+recording
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f0ec.binfdbf6787217fb9289524a3f017d6847fa554686f84597a15373a38828c7139b8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0EC | 16904 bytes |
font_01_sfnt_off00011ce1.bin1144543c75e1b9f04d17b862e1cc76b681fb30db67f632fb6c35a0d7ac1668e3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CE1 | 10824 bytes |
font_02_sfnt_off0001359f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1359F | 16792 bytes |
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