MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress sites or disposable hosting, suggesting it functions as a link farm to distribute further malicious content or conduct phishing. The presence of multiple external URIs and link farm heuristics strongly supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://hnhaa.com/userfiles/tnejp/files/73893619223.pdf In PDF document text
- http://klusjesindex.nl/images/uploads/nususugaderufu.pdfIn PDF document text
- https://cleartunemonitors.com/ckfinder/userfiles/files/93501728799.pdfIn PDF document text
- http://355353.ru/userfiles/file/58366044608.pdfIn PDF document text
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613df1ba1b543---70910175131.pdfIn PDF document text
- https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/ec833a1824a9a36bfdeb60f0889e5a9a/37220850709.pdfIn PDF document text
- https://digiconelectronics.com/media/gupen.pdfIn PDF document text
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161410dc5be468---57752237838.pdfIn PDF document text
- http://kencert.vn/uploads/image/files/99160693721.pdfIn PDF document text
- http://wowbond.com/upload/Fckeditor/file/29528345102.pdfIn PDF document text
- http://tinhdauvietnam.vn/upload/files/29384913602.pdfIn PDF document text
- https://printsolutions.ro/uploads/wysiwyg/files/gofigezezubojinepiv.pdfIn PDF document text
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1612fddb0f1f8a---65597056141.pdfIn PDF document text
- http://pbhdom.eu/userfiles/file/wesetononunadelimuweg.pdfIn PDF document text
- http://tatishev.ru/admin/ckfinder/userfiles/files/85091301371.pdfIn PDF document text
- http://teamhead.net/userfiles/file/60788172467.pdfIn PDF document text
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/11982c63fa22cb84925c47247bba439f/15670664944.pdfIn PDF document text
- http://sxhk365.com/uploads/file///dumemer.pdfIn PDF document text
- https://traiteur-troyes-mariage-buffet-aube-10.blaisot-traiteur.fr/ckfinder/userfiles/files/55339954074.pdfIn PDF document text
- https://media-get.com/userfiles/files/9242129402.pdfIn PDF document text
- http://kadh.kr/bobod/upload/file/57280546989.pdfIn PDF document text
- http://maschimaurizio.it/userfiles/files/88079494220.pdfIn PDF document text
- http://hiroshima-teishaku.com/userfiles/file/fulad.pdfIn PDF document text
- http://absolutelyneon.com/userfiles/file/98859371039.pdfIn PDF document text
- https://globalcircle.club/userfiles/file/34811752249.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=parentskit+app+downloadPDF 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_off0000daa8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAA8 | 18052 bytes |
SHA-256: 8e2f937c8b8da255dc822a0c2c95c484acbebfbef2a429acfa7e5e3d4ca8a4ba |
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font_01_sfnt_off000108ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108EA | 10564 bytes |
SHA-256: 0af7a596c46b721813565d5b89be8dd35253db8b930624f111d6050dac74a9c5 |
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font_02_sfnt_off0001212e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1212E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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