MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, and exhibits characteristics of a link farm. It contains numerous embedded URLs pointing to potentially malicious PDF files, suggesting an attempt to distribute further malware or conduct phishing. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for a large number of links, reinforcing the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 5
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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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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://cructi.ru/uplcv?utm_term=fifty+shades+of+grey+trilogy+pdf+free+download PDF link annotation
- https://jmtours.co/aym_image/files/24198243142.pdfIn PDF document text
- https://funke.be/data/file/joluwebebezefap.pdfIn PDF document text
- http://shriramashramssschool.org/userfiles/file/6127398648.pdfIn PDF document text
- http://yugang360.com/upload_fck/file/2021-9-7/20210907235722154297.pdfIn PDF document text
- http://ejmk.com/ej/upload/files/84064975038.pdfIn PDF document text
- https://dpengineers.info/admin/userfiles/file/fevadetiwosewuj.pdfIn PDF document text
- http://upasamed.org/Content/uploads/files/fatubojupu.pdfIn PDF document text
- http://sushimura1.com/uploads/files/15096069207.pdfIn PDF document text
- http://ip-golubev.ru/ckfinder/userfiles/files/8336774662.pdfIn PDF document text
- http://rs-entp.com/upload/file/92338875298.pdfIn PDF document text
- http://gayaarchi.com/userfiles/file/20210906061036.pdfIn PDF document text
- http://e-sheremet.com/img/firafinoxipaxe.pdfIn PDF document text
- https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d19428bec5---52354288974.pdfIn PDF document text
- http://cayxaotamphan.net/userfiles/image/file/30649543455.pdfIn PDF document text
- http://perchegouet.com/ckfinder/userfiles/files/18904090222.pdfIn PDF document text
- http://daegyung.kr/userfiles/file/20210909201633.pdfIn PDF document text
- https://monographie.com/ckfinder/userfiles/files/43178186287.pdfIn PDF document text
- https://traveletrust.com/basefile/traveletrustcom/files/kegikononalamorijena.pdfIn PDF document text
- http://bjzjygj.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/ronofixoteliwatitajig.pdfIn PDF document text
- http://cungcapbaoduongcuanhatban.com/upload/files/58574546647.pdfIn PDF document text
- http://eakqshop.com/ckfinder/images_store/files/gijagosenawemugosezuwimo.pdfIn PDF document text
- http://jiin-torng.com/uploadfiles/20210904061031.pdfIn PDF document text
- https://khabul.mn/mmpa/userfiles/files/30149799707.pdfIn PDF document text
- https://desertflying.club/wp-content/plugins/formcraft/file-upload/server/content/files/161331af0d6c27---xipod.pdfIn PDF document text
- https://lrdreamteam.com/files/files/file/InfoProduct/file/mudusiterepow.pdfIn PDF document text
- https://heritran.vn/uploads/news_file/31354513782.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_off0000dd4d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD4D | 18044 bytes |
SHA-256: 4e752be9eadeea4540e55c312fb58728a0ebb896ab8f007049bdd007fa2aa8e1 |
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font_01_sfnt_off00010bb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BB5 | 10952 bytes |
SHA-256: 1ba258039a59624ef7982afefb49fa07bd82b7f26ef014dfc3671151bba335a0 |
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font_02_sfnt_off000124e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124E2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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