MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to various external PDF files hosted on potentially compromised or disposable domains, suggesting a phishing or malware distribution scheme. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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 http://scuolascifondocortinadolomiti.it/userfiles/files/26817376475.pdf In PDF document text
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/16143e5fe21a44---44228043935.pdfIn PDF document text
- http://humidorio.de/ckfinder/userfiles/files/91779514997.pdfIn PDF document text
- http://makinsushi.com/uploads/files/pezap.pdfIn PDF document text
- http://nhadep30giay.com/uploads/image/files/sajozexof.pdfIn PDF document text
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/503b0de90539a07e23ecc93ae8affa83/sulelapogugijunip.pdfIn PDF document text
- http://sjhtractor.com/d/files/93031054196.pdfIn PDF document text
- http://dotykbylinky.sk/_subory/subory/99711951298.pdfIn PDF document text
- https://mayxaydungthienlong.com/uploads/files/files/wafiduvogun.pdfIn PDF document text
- https://sakkestadbil.no/userfiles/file/likunarinele.pdfIn PDF document text
- http://vetusmeter.com/images/upload/File/vafebiwig.pdfIn PDF document text
- https://mudraconsultancy.com/uploads/files/44224710981.pdfIn PDF document text
- http://abwnickersonplaza.com/uploads/files/zupuxizogirofiwefatewus.pdfIn PDF document text
- https://parklanehotel.asia/userfiles/file/7832627677.pdfIn PDF document text
- http://defhjdrjioo.friend-match.com/upload/files/kopeniwobasizugi.pdfIn PDF document text
- http://theffirm.com/userfiles/file/35741235128.pdfIn PDF document text
- http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613656874af18---97432603914.pdfIn PDF document text
- https://anjingliar.com/contents/files/rewawazonagi.pdfIn PDF document text
- http://xn--66-6kc8bfmkmjd.xn--p1ai/admin/ckfinder/userfiles/files/43347105763.pdfIn PDF document text
- http://morakothotel.com/file_media/file_image/file/diwijekupenupafi.pdfIn PDF document text
- https://simplehome.ro/ckfinder/userfiles/files/divafulinewuwej.pdfIn PDF document text
- https://officialbacknumber.org/editor_up/girazadefir.pdfIn PDF document text
- https://kimcert.net/E/file/zapikikalimaruwi.pdfIn PDF document text
- http://el-master.ru/userfiles/file/taledarotuxanuvu.pdfIn PDF document text
- https://viboot.com/ckfinder/userfiles/files/pirare.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=hungry+shark+night+android+downloadPDF link annotation
- http://alessandrotria.altervista.org/areap/ckfinder/userfiles/files/17871558291.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_off0000be4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE4B | 16696 bytes |
SHA-256: f73641917a7209658265d8d840cde63705f816b044ded0420bc122b1d0172bc1 |
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font_01_sfnt_off0000e94b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE94B | 10780 bytes |
SHA-256: db6c4d0dc7152934c90d0e4acf304729906b796c534a275e8b6d98ec7ab30b89 |
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font_02_sfnt_off000101da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101DA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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