MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains numerous embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users. The presence of these links and the overall detection indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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://cudicio.it/images/file/vivumeran.pdf In PDF document text
- https://foulardfotografando.it/file/sojofelekev.pdfIn PDF document text
- https://norservis.com/files/files/86011866585.pdfIn PDF document text
- https://www.sudoku-cool.com/ckfinder/userfiles/files/52420705267.pdfIn PDF document text
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/mb75osk0rmte15bd4ngb36flg3/sagaxanobewutunida.pdfIn PDF document text
- http://drivescuolaguida.it/userfiles/files/26518180687.pdfIn PDF document text
- http://alatasfilms.gr/ILC/img/file/xazozenamovetemipeses.pdfIn PDF document text
- http://futimisdev.com/userfiles/file/rajivedagime.pdfIn PDF document text
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/8dtrmva9qiqgmgr74428o5t712/komosasokoderuj.pdfIn PDF document text
- http://njchemland.com/upload/files/23259185185.pdfIn PDF document text
- http://st03.it/userfiles/files/40239349297.pdfIn PDF document text
- https://gbp.dropship-online.com/userfiles/files/dazegoj.pdfIn PDF document text
- http://dalhousieretreat.com/cote_dor_import/admin/ckfinder/userfiles/files/64840234344.pdfIn PDF document text
- http://ndc-group.ru/uploads/files/61321344970.pdfIn PDF document text
- http://ovartec.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613854e24a582---32564701445.pdfIn PDF document text
- http://hermanosgolbano.com/admin/fckeditor/editor/filemanager/connectors/phpfile/72158879856.pdfIn PDF document text
- http://firsttimehomebuyerstudy.com/images/file/jirugedifinumufakekol.pdfIn PDF document text
- https://weeb.nu/userfiles/file/retatos.pdfIn PDF document text
- http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/albe5hqamc4j4ao3uu7uuqajpc/70737228702.pdfIn PDF document text
- https://gulfcans.com/home/madarmun/public_html/gulfcans/images/bulk_images/files/67122701355.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=install+kodi+on+android+boxPDF 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_off000114d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114D8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00012cef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CEF | 10392 bytes |
SHA-256: 5b7f32654d6a13994f44544ac968b88a88277b096714e9477763c796be1d6c1f |
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font_02_sfnt_off00014487.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14487 | 18536 bytes |
SHA-256: bd76b1947dcc4209b4e86d0fd54d5dbac0cc7da7fa6b75d4808b5530918e20fd |
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