MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to malicious content. ClamAV detection and ML classification strongly suggest this PDF is malicious, likely serving as a lure for phishing or malware delivery. No scripts were extracted, but the structure and URL patterns are indicative of a malicious document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://wastran.ru/uplcv?utm_term=mv+bit+master PDF link annotation
- http://www.childofafrica.org/media/userfiles/file/33796468916.pdfIn PDF document text
- http://dietmoiquangle.com/webroot/img/files/81175132997.pdfIn PDF document text
- http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/9a3c56bc7c387ca70f3561b5928cdc73/81869043079.pdfIn PDF document text
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613d2b2458513---87128546508.pdfIn PDF document text
- http://kunmobile.vn/files/uploaded/20210915/file/rorev.pdfIn PDF document text
- http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135f96fa39af---jawededumekinasafanijas.pdfIn PDF document text
- http://5m-tti.com/uploads/image/files/pavipabelumem.pdfIn PDF document text
- http://e-hematologica.com/users/file/wejezadozotozexojufolezi.pdfIn PDF document text
- http://olgapolyakova.de/files/files/sukarijugepenufawixebo.pdfIn PDF document text
- https://radiosmile.hu/upload/file/nugatajijub.pdfIn PDF document text
- https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/0c4c66566c75b3c659060e7a50492585/81339375318.pdfIn PDF document text
- https://lazdynumokykla.lt/userfiles/file/wulijagoka.pdfIn PDF document text
- http://www.clc-engineering.com/siteuploads/editorimg/file/nojadasexuruzepamak.pdfIn PDF document text
- https://ryokanclub.com/FileData/ckfinder/files/20210919_0EAFF3CA97F3B26B.pdfIn PDF document text
- http://www.swaving-stalinrichting.nl/ckfinder/userfiles/files/rixomonugim.pdfIn PDF document text
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/161396adc870b5---kofuxuvi.pdfIn PDF document text
- http://dallapietamarchisio.it/userfiles/files/48463013364.pdfIn PDF document text
- http://studiomarazzi.eu/userfiles/files/19920806737.pdfIn PDF document text
- http://ronaldtan.nl/images/photo/55896567369.pdfIn PDF document text
- http://nowyhotelik.pl/userfiles/file/57522398024.pdfIn PDF document text
- http://camelliafb.com/uploads/files/202109121654487768.pdfIn PDF document text
- https://pasarantogel.com/contents/files/desumelevatam.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_off0000d97e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD97E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f195.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF195 | 10200 bytes |
SHA-256: 4c691a80b1c415db059fecb186eacfbc4ecab7082d9cdd709657539fd4fa0934 |
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font_02_sfnt_off00010888.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10888 | 17780 bytes |
SHA-256: f1c3d54a819af1327a9e1574c3382a9f419e4850d84d0f4da8be569a91a83531 |
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