MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which are hosted on disposable domains, indicating a link farm or phishing attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to malicious sites for further exploitation or credential harvesting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9827
Heuristics 6
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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=redmi+k30i+5g+antutu PDF link annotation
- https://tiemhoahaibara.com/data/dulieu/files/nikapezopurekesot.pdfIn PDF document text
- http://carneiro-sa.pnh.pt/js/ckfinder/userfiles/files/sotoferunusegexeku.pdfIn PDF document text
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/595b917b0bf0b420d53e22c7923e9e88/tikalenibakokunida.pdfIn PDF document text
- https://lecourbe.dk/userfiles/file/pawuminemixelekidiginoj.pdfIn PDF document text
- https://sacc-la-chaux-de-fonds.ch/fichiers/file/jumizanora.pdfIn PDF document text
- http://studiotecniconuti.it/userfiles/files/59385891315.pdfIn PDF document text
- http://laihoawedding.com/app/webroot/upload/files/23281892788.pdfIn PDF document text
- http://energosol.pl/images_cms/file/73906325444.pdfIn PDF document text
- https://www.frontiermea.com/sites/all/libraries/ckfinder/userfiles/files/28350411958.pdfIn PDF document text
- http://www.polni.si/Images/files/28665637562.pdfIn PDF document text
- http://apple888.vn/luutru/files/63054384694.pdfIn PDF document text
- https://aletihad-group.com/userfiles/files/16066270974.pdfIn PDF document text
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/9bdd6611805c2423e2958a24b8826ccc/77630190932.pdfIn PDF document text
- http://www.sudeshnamaulik.com/fckimages/file/sisepigiwa.pdfIn PDF document text
- http://sanzmendia.com/userfiles/files/xenurufolum.pdfIn PDF document text
- https://alajuusa.ee/media/contents/file/42329752791.pdfIn PDF document text
- https://megatex.ua/images/uploads/file/jisowuguxatuka.pdfIn PDF document text
- http://kidneytracker.com/ckfinder/userfiles/files/46514962584.pdfIn PDF document text
- https://habibitoursegypt.com/ckfinder/userfiles/files/sabubojajil.pdfIn PDF document text
- http://alexdisinfestazioni.com/userfiles/files/82808024612.pdfIn PDF document text
- http://mcrlclient.gilcom.ro/ckfinder/userfiles/files/68604643708.pdfIn PDF document text
- http://begemot-rus.com/uploadfiles/file/2021092001085073499.pdfIn PDF document text
- https://coverline.ro/userfiles/file/76508137664.pdfIn PDF document text
- http://logtech.cz/foto/Image/file/72111956586.pdfIn PDF document text
- https://repairbase.net/FCKeditor/editor/filemanager/connectors/php/images/file/wugupiv.pdfIn PDF document text
- http://denis-lefebvre-services.com/fichiers/file/gelapigaverema.pdfIn PDF document text
- https://12shio2.com/contents/files/ronadakokejagutisirureka.pdfIn PDF document text
- http://adance0112.com/upfile/editor/file/86563512439.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_off0000bf22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF22 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d739.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD739 | 10824 bytes |
SHA-256: d69a69862f291f58353596c2307c588ea13b9356835fe9c09eafef26c9ea5468 |
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font_02_sfnt_off0000effc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFFC | 21032 bytes |
SHA-256: d94bff071acb1cd76752f94e02a48162b7aa33fd7a589e4116604b519409a3d7 |
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