MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS platforms. The presence of numerous URLs, including one with a 'utm_term' parameter suggesting tracking, points towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://infrive.ru/uplcv?utm_term=localizar+mi+android+con+gmail PDF link annotation
- http://gazosilikatnn.ru/uploads/files/31253364957.pdfIn PDF document text
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613176b0e5798---61331570745.pdfIn PDF document text
- http://apartament-krokus.pl/userfiles/file/44437184746.pdfIn PDF document text
- http://webinaris.eu/ckfinder/userfiles/publics/files/jexojokoga.pdfIn PDF document text
- https://alpinashop.rudy-ra.com/files/pupesivuwiserazedogozop.pdfIn PDF document text
- http://intertravel.hu/_user/file/18349067471.pdfIn PDF document text
- http://t-p-fortune.com/userfiles/file/89448927989.pdfIn PDF document text
- https://www.esicm-old.org/admin/lib/ckfinder/userfiles/files/negozib.pdfIn PDF document text
- https://rtaadmin.mrv-educationservices.com/content_file/files/4784328740.pdfIn PDF document text
- https://editora-arara-azul.com.br/site/admin/ckfinder/userfiles/files/45665796921.pdfIn PDF document text
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1613d5d195f3d5---rakifawiwefuzame.pdfIn PDF document text
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/161453931e623f---kagoseworoxenavejeromi.pdfIn PDF document text
- https://cqhuaan.myhost360.cn/upload/files/09-12-19-47-31-15.pdfIn PDF document text
- https://www.chablis-gautherin.com/ckfinder/userfiles/files/16339054488.pdfIn PDF document text
- http://gradn.ru/uploades/fckeditorfile/tiwejisirezuvib.pdfIn PDF document text
- http://aylabawadi.ae/userfiles/file/xodemarerilemewoditamu.pdfIn PDF document text
- https://cafesca.org/ckfinder/userfiles/files/27346360129.pdfIn PDF document text
- http://vandervalk.reviews/app/webroot/files/userfiles/files/jetelu.pdfIn PDF document text
- http://ecme.site/2015/vat/upload/files/zepilisarivemivas.pdfIn PDF document text
- http://objets.immoweiss.lu/userfiles/files/tuxotu.pdfIn PDF document text
- http://vwtint.com/userData/board/file/65371336687.pdfIn PDF document text
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/498a31893edeaa76fa5ada9252e9db6a/20535159301.pdfIn PDF document text
- https://ncsccalgary.com/userfiles/files/fofijutinerezoxir.pdfIn PDF document text
- http://www.dereformasenalicante.com/archivos/files/66735092662.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_off0000eb86.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB86 | 10332 bytes |
SHA-256: 7add480b755e44662ee8b11cd0e7346ea2e67eeb088cc215480335c1f715a5ac |
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font_01_sfnt_off0001027c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1027C | 18280 bytes |
SHA-256: 264ab02cca945c4f3c2010ce7cbfaa3a86ad7e68b5f4d13a3576af7f3393a442 |
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font_02_sfnt_off000131fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131FC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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