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 part of a link farm hosted on disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for initiating malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9829
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://crysiq.ru/uplcv?utm_term=minecraft+apk+caves+and+cliffs PDF link annotation
- http://satit.nrru.ac.th/satit/_Adminis/ckfinder/userfiles/files/94406742020.pdfIn PDF document text
- http://elisa5888.com/shopadmin/upload/files/rilasomovavagi.pdfIn PDF document text
- https://kaemsp.org/upload/editor/file/96320819976.pdfIn PDF document text
- http://www.stsmcc.org/www/js/ckfinder/userfiles/files/vijowidoxumumujonuwuwu.pdfIn PDF document text
- http://floramarble.com/uploads/kazat.pdfIn PDF document text
- https://koncnc.com/genelresimler/file/41072789054.pdfIn PDF document text
- http://osayit.com/images/file/nekakewegawonazitiputaba.pdfIn PDF document text
- https://stpatswatertown.org/ckfinder/userfiles/files/53433213831.pdfIn PDF document text
- http://winhazel.com/indigo/ckfinder/userfiles/files/jefixo.pdfIn PDF document text
- http://sostrevalli.it/userfiles/files/48391036865.pdfIn PDF document text
- http://keifo.ru/ckfinder/userfiles/files/sadewikunugefuworuj.pdfIn PDF document text
- http://vizit-k.net/uploads/editor/files/wafasupa.pdfIn PDF document text
- http://costruzionibulagna.it/userfiles/files/58050473845.pdfIn PDF document text
- http://kleinschadenexperte.com/userfiles/file/jonozodajebegurapo.pdfIn PDF document text
- https://barcelonacentromedico.es/files/galeria/files/temibimuporeloz.pdfIn PDF document text
- http://e2ingenieros.com/ckfinder/userfiles/files/rijavezabamav.pdfIn PDF document text
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613b97feb67cc---kivobagijiledugut.pdfIn PDF document text
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161350c310098e---82330988826.pdfIn PDF document text
- http://choragwica.pl/userfiles/file/gibipanutuxoxigevufopaw.pdfIn PDF document text
- https://lenaoyunlar.com/calisma2/files/uploads/10844044977.pdfIn PDF document text
- https://turismopontevedra.com/ckfinder/userfiles/files/76629791210.pdfIn PDF document text
- http://sherwoodchambergolf.org/ckfinder/userfiles/files/liket.pdfIn PDF document text
- http://cancunday.com/travela/img/files/56685650567.pdfIn PDF document text
- http://dsraxys.com/uploads/wopokezadinonodonaferukup.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/37198791987.pdfIn PDF document text
- http://www.zaluziemalina.cz/userfiles/file/kojijosurimel.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_off0000cbd6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBD6 | 10644 bytes |
SHA-256: 400fcf3f9c5bd96fc9e4fe342b2582f797a642821f046ffab51505b2f18b8e76 |
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font_01_sfnt_off0000e457.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE457 | 17560 bytes |
SHA-256: 956792039e4cfe146351623b356ae4f8fadab1f1ecaf34fe845d8942e7c35893 |
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font_02_sfnt_off00011170.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11170 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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