MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links pointing to various domains, indicating a link farm designed to obscure the ultimate destination. The 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic and the high number of distinct hosts strongly suggest a phishing or malware distribution scheme. The ML classifier and ClamAV detection confirm the malicious nature of the file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://www.winsum.frl/ckfinder/userfiles/files/11385844106.pdf In PDF document text
- http://teleinwestor.pl/userfiles/file/43889825785.pdfIn PDF document text
- http://metisentry.net/ckfinder/userfiles/files/48588224002.pdfIn PDF document text
- http://braghieriarchitettura.com/userfiles/files/67313504400.pdfIn PDF document text
- https://www.albriug.com/static/editor/ckeditor/ckfinder/upfile/files/pererufasu.pdfIn PDF document text
- http://topbuild.net/content/xuploadimages/file/34165635166.pdfIn PDF document text
- http://homeopathyhongkong.cn/files/vowexe.pdfIn PDF document text
- http://mallenmediations.com/mallenmediations/images/userfiles/file/66110137744.pdfIn PDF document text
- http://gemmacapitalgroup.com/foto/file/68517356466.pdfIn PDF document text
- http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136cba6ba688---zoxafu.pdfIn PDF document text
- https://liho.cz/UserFiles/File/21996295061.pdfIn PDF document text
- https://lucky-erotic-massage-bucharest.ro/ckfinder/userfiles/files/71724114843.pdfIn PDF document text
- http://jongauger.com/ckfinder/userfiles/files/luvefigul.pdfIn PDF document text
- http://hantechwelding.com/userfiles/file/2021090419284873499.pdfIn PDF document text
- https://extremedriveline.com/ckfinder/userfiles/files/43427879634.pdfIn PDF document text
- https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/tkah16e7ejocfjll0jvcl6g77b/saregagejafosuzujiset.pdfIn PDF document text
- http://lnianemarzenie.pl/userfiles/file/sefifi.pdfIn PDF document text
- http://irpuyesh.com/cache/fck_files/file/xuvosuvumagurikexeza.pdfIn PDF document text
- http://preiss.at/upload_files/files/4089002955.pdfIn PDF document text
- https://at2-turbo-j3t.com/contents/files/10492106266.pdfIn PDF document text
- http://fornacedelia.it/userfiles/files/rofawakafetetof.pdfIn PDF document text
- http://olsztyntransportmedyczny.pl/userfiles/file/gizibebagurukufupiz.pdfIn PDF document text
- http://dansungsala.com/uploads/files/98650085136.pdfIn PDF document text
- https://www.luthier-auxerre.fr/ckfinder/userfiles/files/bukimuworurujenuvowewoz.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=fifa+21+mobile+modPDF link annotation
- 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_off0000c6cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6CB | 10336 bytes |
SHA-256: 246e32bc2667fe98fa5103cb9136ebce9e3f607ea652fd3e1d889d22424d6af2 |
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font_01_sfnt_off0000de1e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE1E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f630.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF630 | 21756 bytes |
SHA-256: a2943610ccc9363b0f99f866fe71d20ce47292db590bab414c412b410ee80d89 |
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