MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous links, many of which are part of a link farm designed to redirect users to various hosting sites. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the presence of multiple unknown-reputation URLs suggest a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or trojan delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 https://huntic.ru/uplcv?utm_term=idm+download+2021 PDF link annotation
- http://cserepakcio.hu/xdata/file/niwatelunipe.pdfIn PDF document text
- http://mishelik.ru/userfiles/file/nilivuvenupovusevonev.pdfIn PDF document text
- https://etest.vn/app/webroot/uploads/files/14783859704.pdfIn PDF document text
- https://rrr71.ru/upload_picture/monojafe.pdfIn PDF document text
- https://vico-domrep.com/ckfinder/userfiles/files/93225015143.pdfIn PDF document text
- http://acsalma.hu/userfiles/files/xujinupo.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/161325ac4d9ce0---74527681003.pdfIn PDF document text
- https://wrd13.com/force/file/615139733.pdfIn PDF document text
- http://apisicul.com/userfiles/files/50249260308.pdfIn PDF document text
- http://ozkayalarlojistik.com/userfiles/file/15094635596.pdfIn PDF document text
- http://lube-stc.com/ckfinder/userfiles/files/vanebesaveta.pdfIn PDF document text
- https://lanna-flyingclub.com/ckfinder/userfiles/files/vatelimuju.pdfIn PDF document text
- http://apartmany.cucoriedka.sk/data/files/melitajajisil.pdfIn PDF document text
- http://kalmi.ru/upfiles/files/ribemowurigegez.pdfIn PDF document text
- https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/58680c99bf4c8c72f790ea08d2b7c976/buzevamilebujajobolupaxo.pdfIn PDF document text
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16138ee70e9350---89363509072.pdfIn PDF document text
- http://moderncarrent.com/user_img/files/19916868079.pdfIn PDF document text
- https://cvsc.co/userfiles/file/8655416941.pdfIn PDF document text
- https://hosvagyok.hu/userfiles/file/boretoruwopujere.pdfIn PDF document text
- http://chhattisgarhsanskritboard.in/sharpinstitute/images/files/1626965402.pdfIn PDF document text
- http://olimpic.hu/ckfinder/userfiles/files/4984758228.pdfIn PDF document text
- https://pernambucoimortal.com/imagens/files/705152878.pdfIn PDF document text
- http://nacyc.jp/Upload/file/tetij.pdfIn PDF document text
- http://ormansagszive.hu/upload/file/74757612882.pdfIn PDF document text
- http://carsonpokebar.com/uploads/files/85767969356.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_off0000e18e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE18E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f9a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9A0 | 17704 bytes |
SHA-256: 5d276980afd6fd81f08744b5a436f5a8a01720c6250b76e248c9072d88ef63ba |
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font_02_sfnt_off00012771.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12771 | 10148 bytes |
SHA-256: cfe12a5d6abdb7bb472cbeb81924fa391ffddd4f4949aaf4625489254ad061f7 |
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