MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing or trojan PDF. The PDF contains numerous embedded URLs, many of which are part of a link farm hosted on disposable domains, indicating a likely attempt to redirect users to malicious content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, suggesting a tactic to obscure the true malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 5
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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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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://medvor.ru/uplcv?utm_term=how+to+recover+deleted+photos+in+internal+storage PDF link annotation
- http://stauarchitetti.eu/userfiles/files/67495691449.pdfIn PDF document text
- https://girilawfirm.com/content_files/files/kuwopilufukelexedan.pdfIn PDF document text
- http://metamorfoza-krosno.pl/userfiles/file/mavubogavovem.pdfIn PDF document text
- http://opt-russtd.ru/data_center/upload_pictures/file/bexoboj.pdfIn PDF document text
- https://iqmuseum.mn/uploads/files/24727793263.pdfIn PDF document text
- http://askaudit.ru/price/5212503272.pdfIn PDF document text
- https://yam-token.com/business_school/uploads/file/nedetubax.pdfIn PDF document text
- http://ambulatorioveterinariomariani.it/userfiles/files/48558362130.pdfIn PDF document text
- http://design-klasse.de/ckfinder/userfiles/files/39684165757.pdfIn PDF document text
- http://szjglaw.com/uploadfile/file/2021091805071173499.pdfIn PDF document text
- http://na3.it/misc/file/22914104842.pdfIn PDF document text
- https://confidence-ist.com/ckfinder/userfiles/files/88034221257.pdfIn PDF document text
- https://bitree.ru/ckfinder/userfiles/files/tibasomurakoto.pdfIn PDF document text
- https://panelshock.com/userfiles/file/wofavetakiwubimabi.pdfIn PDF document text
- http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/fc43798b65742f1ade8c1927f78df2dd/75703420150.pdfIn PDF document text
- https://xn--z4qq44i.xn--kpry57d/upload/actfiles/39371784688.pdfIn PDF document text
- http://extrastyle.ee/ckfinder/userfiles/files/6188580956.pdfIn PDF document text
- http://goodtraefarm.com/ckupload/files/21811907041.pdfIn PDF document text
- https://xn--hjrnskadeakademien-mtb.se/userfiles/file/metojokamep.pdfIn PDF document text
- https://shellserva.nl/docs/Image/file/55598441017.pdfIn PDF document text
- http://esejsc.com/upload/files/senudiwuxolijizodaso.pdfIn PDF document text
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614238c3a96fb---gekaranadiremekogig.pdfIn PDF document text
- http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/16135bc172b73c---torojagelaliw.pdfIn PDF document text
- http://fipjp.com/userfiles/file/nopufezosokil.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_off0000bfa0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFA0 | 10936 bytes |
SHA-256: 8109d4185f26f10b168eead01b52fab8e4a9e759b23d5c9306326fd6996f30aa |
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font_01_sfnt_off0000d8ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8BA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f0cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0CC | 17580 bytes |
SHA-256: 4c36a4cbf537848524c3dc49067e5ec0dcdf2a4e7c9bdf015c270ca656e4593e |
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