MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external URIs, many hosted on compromised or disposable domains, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://krisoc.ru/uplcv?utm_term=bloodstained+curse+moon PDF link annotation
- http://statewideroofservices.com/clients/b/b8/b825a24af54c157c196cf52173d75bf0/File/ridenuwufuwenab.pdfIn PDF document text
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160aa6cf58fe9a---vepafudolupi.pdfIn PDF document text
- http://igigeothermal.jp/userfiles/file/folinolexokinije.pdfIn PDF document text
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9072e3a966---medakozevamezamaje.pdfIn PDF document text
- http://wchs67.com/clients/f/fd/fd50fd9748f3592dabdfdad26f378f15/File/zegiwidupokuxapupe.pdfIn PDF document text
- http://daindnc.com/fckeditor/userfiles/file/94529070692.pdfIn PDF document text
- http://www.tecnobor.com/ckfinder/userfiles/files/xazeb.pdfIn PDF document text
- http://savvyais.com/userfiles/file/xuxoduzudagezijuxuj.pdfIn PDF document text
- http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b7ebc5b07d9---lanisobaxekaselugobubuv.pdfIn PDF document text
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/q2fe50qtnpnl9bviajq9erql1t/82483341483.pdfIn PDF document text
- http://www.tomasjelinek.com/img/pub/file/xadovodutedeb.pdfIn PDF document text
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b86beadaae0---89070967442.pdfIn PDF document text
- https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/edc072f7ad7905ff916ce62ff5a25a07/wejujarosetesugekinomuxex.pdfIn PDF document text
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dec3e8f452---wodaduzukozivotabezajo.pdfIn PDF document text
- https://solo-enoant.com/content/files/files/ligefitibun.pdfIn PDF document text
- http://eng.sut.ac.th/tce/2016/administrator/ckfinder/userfiles/files/64699750612.pdfIn PDF document text
- https://acronimocostanzo.com/userfiles/file/pevoxejebaviruluzexowe.pdfIn PDF document text
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d01cde3f405---zilevikovafekejukojoper.pdfIn PDF document text
- http://astro2sphere.com/admin/images/file/bojagede.pdfIn PDF document text
- http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160931e71635cb---vupinenabiwiribin.pdfIn PDF document text
- http://on-video.com/movies/movie_data/file/zuvul.pdfIn PDF document text
- https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/9b0a01bb3fd12b8bb38e5d4b553fc4e0/79596261859.pdfIn PDF document text
- http://rajskiewakacje.pl/userfiles/file/jinapibixizivetored.pdfIn PDF document text
- http://speed-r.com/js/upload/files/76194793692.pdfIn PDF document text
- https://gionggiacam.com/ckfinder/userfiles/files/lisib.pdfIn PDF document text
- http://siripanyalamphun.com/user_img/files/50649417449.pdfIn PDF document text
- http://uitetenindex.nl/images/uploads/72888931782.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_off0000bf4d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF4D | 10684 bytes |
SHA-256: 259b6ad383f54bd859bceefcc5ce8f2fe88de85b93d7aa32aefe65f0cbe4b463 |
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font_01_sfnt_off0000d7c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7C6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000efd8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFD8 | 16672 bytes |
SHA-256: 335a14b23674391f58e2dc186cde23fa4089a11b1e07acfd39b74f3085511a52 |
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