MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, forming a link farm. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' indicate a pattern of using such sites for distribution. ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent, likely to lure users to phishing sites or download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://pixomot.ru/uplcv?utm_term=game+ppsspp+highly+compressed+5mb PDF link annotation
- https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fe400c964d---kuxajakaga.pdfIn PDF document text
- http://squash-fitness.cz/userfiles/file/87190481901.pdfIn PDF document text
- http://mikol-styl.cz/userfiles/file/10303401523.pdfIn PDF document text
- http://khonggianmang.com/upload/files/66161340517.pdfIn PDF document text
- http://15441707.com/data/board/file/20210914000118.pdfIn PDF document text
- https://parfumzone.ro/files/file/23340775.pdfIn PDF document text
- https://pensiuneaselina.ro/userfiles/file/9456472072.pdfIn PDF document text
- https://iieng.org/editor/ckfinder/userfiles/files/78794953533.pdfIn PDF document text
- http://abwmarlboropike.com/uploads/files/60845666869.pdfIn PDF document text
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/838f512c7318c53d9203300693b736e8/3352063461.pdfIn PDF document text
- http://brmhn.com/userfiles/file/20210914053820_5wgstb.pdfIn PDF document text
- http://lavalnerina.it/userfiles/file/juxaruwexaro.pdfIn PDF document text
- https://npkfertilizerproduction.com/d/files/kanano.pdfIn PDF document text
- http://anhuifan.com/upload_fck/file/2021-9-14/20210914052104312719.pdfIn PDF document text
- http://dominoliberec.eu/images/file/files/waleta.pdfIn PDF document text
- http://aristosaigonhotel.com/uploads/files/kuzetetagiwidonegewufem.pdfIn PDF document text
- http://akinmedical.com/uploads/file/pivuz.pdfIn PDF document text
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613fc06af0601---59181754650.pdfIn PDF document text
- http://bocghebinhduong.com/media/ftp/file/2270931932.pdfIn PDF document text
- http://asia-test.informacittadino.net/media/files/juzusarokexu.pdfIn PDF document text
- https://businesslife.com/content/file/21187135183.pdfIn PDF document text
- https://krzczonowice.pl/gfx/file/sevuneru.pdfIn PDF document text
- http://oroblupiscine.it/userfiles/files/88083476745.pdfIn PDF document text
- http://bowlingkillers.com/imgdb/files/xogunun.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_off0000e549.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE549 | 18140 bytes |
SHA-256: e3b56ac5b61d2225dd44794ccc9cd6b0b855fce1899e5b02e3d26dd1bcfc0874 |
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font_01_sfnt_off0001144d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1144D | 11184 bytes |
SHA-256: bd0d2b523b8ba16274eaa42cf79081336e3d836b999763f95d67c92c2c39243d |
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font_02_sfnt_off00012e1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E1C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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