MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that form a link farm, directing users to potentially compromised websites or disposable hosting. The presence of multiple external URIs and a link farm structure strongly suggests an intent to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://chcial.ru/uplcv?utm_term=bin+to+card+generator PDF link annotation
- https://www.truckersplantparts.co.uk/ckfinder/userfiles/files/riran.pdfIn PDF document text
- http://gildiamasterov.ru/userfiles/file/rotitow.pdfIn PDF document text
- http://relindalouisylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lazenepuwe.pdfIn PDF document text
- http://rklatex.com/userfiles/file/runabenorib.pdfIn PDF document text
- https://e-fasteners.eu/media/file/xunokivugosowesodezube.pdfIn PDF document text
- http://weiken-rc.com/upload/files/subujewafalokozut.pdfIn PDF document text
- http://rigdrilling.org/userfiles/file/72019872626.pdfIn PDF document text
- http://mlsy.cz/images/file/files/bavosuvusujukimu.pdfIn PDF document text
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f5da0ae58c---mosirajinapazuro.pdfIn PDF document text
- http://www.findvoters.com/userfiles/file/91003477340.pdfIn PDF document text
- http://cartonwrappingmachine.com/userfiles/file/xibelupasavadomuruseje.pdfIn PDF document text
- https://anandamsanyal.com/userfiles/file/53518683410.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/e94a93f9502280b8c21f42c57dc03f6a/7778538265.pdfIn PDF document text
- https://vico-immobilien.com/ckfinder/userfiles/files/rotimeguwukinerisemaru.pdfIn PDF document text
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142a3fca4ad3---26903044925.pdfIn PDF document text
- http://lovepetclinics.com/file_media/file_image/file/94627479327.pdfIn PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/67fvse95106hf199he29e9ijc4/22848661651.pdfIn PDF document text
- https://honghow.com/ckfinder/userfiles/files/wutikitikovusemoruduw.pdfIn PDF document text
- https://kaptenhoki.org/contents/files/xotomisefuz.pdfIn PDF document text
- http://bolt-go77.com/fckeditor/userfiles/file/77188246215.pdfIn PDF document text
- http://www.ettermanenterprises.com/ckfinder/userfiles/files/xibupututaxaponetakup.pdfIn PDF document text
- https://tidymoney.com/ckfinder/userfiles/files/61033804912.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_off0000b4df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4DF | 16240 bytes |
SHA-256: d3770a76fa7bfb7343425a4ce31134fd3145d95433d8c49de96399181ab1d8a4 |
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font_01_sfnt_off0000de54.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE54 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f66b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF66B | 10384 bytes |
SHA-256: fb1b027c8de0801ce7ac20c218753b6f6911409d29b8f9eec4dc503b3c69003a |
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