MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics indicate the document functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS upload storage or disposable domains. The embedded URLs and the nature of the heuristics suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://coretry.ru/uplcv?utm_term=is+lumpatious+a+word PDF link annotation
- https://harteron.ee/userfiles/file/jivukedizereruzulopujewap.pdfIn PDF document text
- http://dui-antidote.com/images/userfiles/file/86106306466.pdfIn PDF document text
- http://tctrack.vn/images/newtech/files/pibad.pdfIn PDF document text
- https://duel.pl/userfiles/file/25044755451.pdfIn PDF document text
- http://salamino.pl/userfiles/file/50718489365.pdfIn PDF document text
- https://magicdiscoradio.com/userfiles/file/53032633206.pdfIn PDF document text
- http://senvietsystem.com/ckeditor/upload/files/wafowedepibuz.pdfIn PDF document text
- https://macintosh-szerviz-javitas.nuttydog.hu/ckfinder/userfiles/files/ranoladonedodoremoj.pdfIn PDF document text
- http://80tner.friend-match.com/upload/files/99452402721.pdfIn PDF document text
- https://goldfieldssanddrags.com.au/ckfinder/userfiles/files/24971712535.pdfIn PDF document text
- http://another-partner.morefriendship.com/upload/files/82985469746.pdfIn PDF document text
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/v63mk0cqsnhe6931c4e4rks8ln/43514049761.pdfIn PDF document text
- http://ageddfjtjgrade.pretty-match.com/upload/files/39344525246.pdfIn PDF document text
- http://ambcavallon.eu/userfiles/files/76430929559.pdfIn PDF document text
- http://meteosputnik.ru/userfiles/file/wojorulaxudo.pdfIn PDF document text
- https://twinslock.com/ckfinder/userfiles/files/80696476727.pdfIn PDF document text
- http://chroscina.com/userfiles/file/foginuk.pdfIn PDF document text
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16139db2f5f07f---99386340736.pdfIn PDF document text
- http://talk200.com/admin/admin/uploadfiles/file/58675633371.pdfIn PDF document text
- https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/5v5pptetb36oma6jauur2cnvjt/721608369.pdfIn PDF document text
- https://stmpallet.com/ckfinder/userfiles/files/19056377891.pdfIn PDF document text
- http://slavutich-media.ru/userfiles/file/fojujepiko.pdfIn PDF document text
- https://dom4m.de/userfiles/files/mivakafavavakiguzisis.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_off0000b706.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB706 | 16100 bytes |
SHA-256: 1732f078fdd7dab65e19e5cec2e431e01f1aa0613b0ccda4c0b99882ac6330b0 |
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font_01_sfnt_off0000e00f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE00F | 10452 bytes |
SHA-256: 8ea63ec1bc4e95c7328c34eca290c4f1184f99be114b73fbcd97d70e889a78af |
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font_02_sfnt_off0000f7d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7D9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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