MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple compromised websites hosted on disposable domains or potentially compromised CMS uploads. The presence of numerous unknown URLs suggests a distribution or phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/160bdec0976062---gakosar.pdf In PDF document text
- https://turbooto.vn/upload/files/jepopowawa.pdfIn PDF document text
- https://swagath.co/new/ckfinder/userfiles/files/91626660781.pdfIn PDF document text
- https://geya99.com/ckfinder/userfiles/files/7287139741.pdfIn PDF document text
- http://fresh-j.info/images/uploadedimages/file/selebekebinobupixi.pdfIn PDF document text
- http://vekosgroup.ru/userfiles/file/mawaw.pdfIn PDF document text
- http://kredoteka.ru/uploads/file/67864321126.pdfIn PDF document text
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608a1e3a23af5---mubanuzad.pdfIn PDF document text
- http://shuimotongyuan.com/userfiles/file/27507853977.pdfIn PDF document text
- https://muguet.fr/sites/default/files/file/54875872889.pdfIn PDF document text
- http://hyundai-dongdo.vn/images/files/71386666199.pdfIn PDF document text
- https://fontaine-eva.fr/userfiles/files/nujivolegi.pdfIn PDF document text
- http://maxbrio.kr/files/files/58254683456.pdfIn PDF document text
- https://archltginc.com/wp-content/plugins/super-forms/uploads/php/files/bdd0b913327e465f86c01edccb3c1298/73809852819.pdfIn PDF document text
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a5784f7041c---rudogu.pdfIn PDF document text
- http://babywagen24.de/userfiles/file/vesonumot.pdfIn PDF document text
- https://mobile-translator.eu/app/webroot/media/files/vogutevudinapuvesugi.pdfIn PDF document text
- http://the-bom.kr/upfile/files/fubosidazirizepok.pdfIn PDF document text
- https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/3kc5g244990qnqa0o7gq1cf4ba/91392223598.pdfIn PDF document text
- http://automotiveenergy.cz/userfiles/file/luneziposimof.pdfIn PDF document text
- https://www.profiemg.cz/upload/ck/files/44497096949.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a246c0ab7e3---faserobinodafofesaf.pdfIn PDF document text
- https://actaviaserica.org/board/file/files/nolemodovavudewebowux.pdfIn PDF document text
- http://aprendanow.com/wp-content/plugins/super-forms/uploads/php/files/fe23fa5f363a37b34f08a0d39315cb47/vubavirosupuboj.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=telugu+biography+books+pdf+free+downloadPDF 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_off0000d1a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1A5 | 11172 bytes |
SHA-256: c2f052e198605578513f9bf62ee4845cc10a54a8d3a536133ef8ad1a29ebe14a |
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font_01_sfnt_off0000eb5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB5B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001036d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1036D | 18900 bytes |
SHA-256: d7ede119bff5371fc9d1046b16eafa2835664fceb4b38c095dec7b9beb27d59a |
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