MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous links to external websites, many of which are hosted on disposable domains. The heuristic 'PDF_RANDOM_URL_LINK' specifically flags a link to an algorithmically-generated URL, indicating a likely attempt to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly support the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 7
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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 http://ivankrivanek.com/userfiles/file/28944964269.pdf In PDF document text
- https://catwalkdogcome.com/editor_upload_image/file/57369957858.pdfIn PDF document text
- http://ordineveterinarireggioemilia.it/userfiles/files/tananu.pdfIn PDF document text
- https://egyiksem.hu/uploads/file/39199229661.pdfIn PDF document text
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132e8079087e---zawenoxaxefuj.pdfIn PDF document text
- http://ambulatorioveterinariobubiniregini.eu/userfiles/files/55574165120.pdfIn PDF document text
- https://www.vpn-solutions.com.pe/ckfinder/userfiles/files/15151433663.pdfIn PDF document text
- http://evergreendentistryva.com/app/webroot/js/ckfinder/userfiles/files/20952210791.pdfIn PDF document text
- http://xn--76-6kca8aqc6c.xn--p1ai/pic/userfile/vegofobavavobolubalonej.pdfIn PDF document text
- http://michardardillier.com/ckfinder/userfiles/files/kowixinilowaf.pdfIn PDF document text
- http://shangyi-pump.com/uploads/file/032218469331.pdfIn PDF document text
- https://mediaget.ru/userfiles/files/tosunogepaz.pdfIn PDF document text
- http://allycatering.com/userfiles/64612281709.pdfIn PDF document text
- https://arte-salon.ru/upload_picture/wavisexadofogimezeper.pdfIn PDF document text
- http://tokyosushilohaus.com/uploads/files/tabenumiku.pdfIn PDF document text
- https://mashtalkandil.com/userfiles/file/66885787708.pdfIn PDF document text
- http://bud-med.eu/userfiles/file/visogek.pdfIn PDF document text
- http://cleanking.net/userData/board/file/gizovabifi.pdfIn PDF document text
- https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/m8i4hivft261ngda9qo3n66qe1/65646093814.pdfIn PDF document text
- http://dieterheich.de/images/uploads/file/xurofetusiwivaxoraxowafem.pdfIn PDF document text
- https://digitaluzaktanegitim.com/calisma2/files/uploads/98429182695.pdfIn PDF document text
- http://bio86.fr/userfiles/fichiers/3910246884.pdfIn PDF document text
- http://felixefontesadvogados.com.br/ckfinder/userfiles/files/84520789587.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=hungry+shark+world+hack+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_off0000beb2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBEB2 | 17080 bytes |
SHA-256: 9cf3a686fbd55bf0e4f74d6839df2ce61e20e17fe73a2bb7dec905731620cbf1 |
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font_01_sfnt_off0000eb2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB2E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010345.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10345 | 10880 bytes |
SHA-256: b8fb6e2df55664f557c2db85ce1d074864956ad575b6e72b674850fa43e96082 |
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