MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics indicate the PDF contains a link farm pointing to compromised CMS uploads and disposable hosting, suggesting it's designed to redirect users to malicious sites. The presence of multiple external URIs and a link farm structure strongly suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9922
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://crewmak.ru/uplcv?utm_term=marriage+vows+in+tamil
- http://www.juniorcollege.cl/ckfinder/userfiles/files/bifafadasikevoga.pdf
- http://zs-oilfieldequip.ru/d/files/gowov.pdf
- https://kingdom.vn/userfiles/file/kiwisozejiso.pdf
- http://wpchkg.com/upload/image/file/xofimosimimisu.pdf
- http://akkoryazilim.com/userfiles/file/59945010443.pdf
- http://pileshoppen.dk/userfiles/file/jogulivamotilatexam.pdf
- http://marketingnews.fr/images/file/mutadix.pdf
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614150076a824---77775019833.pdf
- http://gzky.cn/dubeite/ckfinder/userfiles/files/20210903_193210.pdf
- http://baove24h.org/upload/files/felilaxuv.pdf
- https://smshealthcareservices.com/ckfinder/userfiles/files/92173501687.pdf
- http://austral-immo.com/userfiles/files/51055119549.pdf
- http://studiopedrazzini.eu/userfiles/files/livovex.pdf
- http://www.rodnolespropertymanagement.com/siteuploads/editorimg/file/lilelojuxex.pdf
- https://egokituz.eus/files/galeria/files/46437252021.pdf
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/l2p7gqutcrb9aui8khl4tgv4l5/negixodavu.pdf
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16139bf136aa37---76448608568.pdf
- http://madiagranitosilano.it/userfiles/files/sinoxik.pdf
- http://hiredriver.com/uploads/assets/files/99353417889.pdf
- http://maxbrio.kr/files/files/jafuvifopasosutazu.pdf
- http://xn--80aer5aza.xn--19-kmcm3c.xn--p1ai/ckfinder/userfiles/files/mudikig.pdf
- https://qud27rxl1-k61l.com/contents/files/figopobik.pdf
- http://www.mariabeckmann.com/fotos/uploads/files/fobeliwe.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16153cad73dfb0---26319689380.pdf
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/161412f0200fa7---sokinobatilo.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000da0f.bin10020608cf4da21bc5bd90b70125b4202cb1122d7dfa39b0ccd9faeb8745e80f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA0F | 19400 bytes |
font_01_sfnt_off00010b97.bin8393e779c5094d531a6ec32aff9f85a0b52a247d0fb9977ad9b505ef3f7a1d9c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B97 | 10596 bytes |
font_02_sfnt_off000123d6.bin6cba6677bde0f241d5abe4bd1daabf497e221bd6197b657de4268e87bbbbfee9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123D6 | 16168 bytes |
font_03_sfnt_off00013978.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13978 | 16792 bytes |
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