MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document containing an embedded JavaScript stream and a large number of external URIs, many of which point to disposable domains. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a link farm strategy, and the ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common method for exploiting PDF vulnerabilities or initiating malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://rippa.pt/files/file/kujonaritapawujuranuben.pdf In PDF document text
- http://hcbarrett.com/user_area/file/nilutezajotejimajug.pdfIn PDF document text
- http://tomaszfilipczak.pl/userfiles/file/63329819299.pdfIn PDF document text
- http://www.jacenter.org/js/ckfinder/userfiles/files/8050305591.pdfIn PDF document text
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16130cb440a754---48390248274.pdfIn PDF document text
- http://a2hgghk.handylover.com/upload/files/34033775686.pdfIn PDF document text
- http://jarosi.hu/files/file/zolinomusazumovilotigumot.pdfIn PDF document text
- http://espwireless.net/uploads/file/35821749116.pdfIn PDF document text
- http://tatagz.com/uploadfile/files/72109639218.pdfIn PDF document text
- http://gardens-spa.com/user_pict/file/puvukekidolizokomizusa.pdfIn PDF document text
- http://6nergy.fr/6nergy/sites/default/user/file/favejefosutafedi.pdfIn PDF document text
- http://bike-aholic.com/UserFiles/file/74807749146.pdfIn PDF document text
- http://aptekarynek.pl/zdjecia/fck/file/41710675053.pdfIn PDF document text
- http://e-skala.pl/userfiles/file/padupo.pdfIn PDF document text
- https://www.willmarareachamber.com/ckfinder/userfiles/files/58644152985.pdfIn PDF document text
- http://medtravel.lv/images/hand_uploaded/files/17677647316.pdfIn PDF document text
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a3dcb3947d---tanixopos.pdfIn PDF document text
- http://adance0112.com/upfile/editor/file/95931240707.pdfIn PDF document text
- http://egitara.com/upfiles/files/nomebapelowixakifa.pdfIn PDF document text
- http://ipost.mn/ckfinder/userfiles/files/36167909776.pdfIn PDF document text
- https://innovaciones-plasticas.com/imagenes_cont/sitio/documentos/binovalabowilevapuv.pdfIn PDF document text
- http://aliceinformaticasrl.com/user/pages/lekapuxomafexe.pdfIn PDF document text
- https://egokituz.eus/files/galeria/files/47183110683.pdfIn PDF document text
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/16132edf07c6b7---73366573284.pdfIn PDF document text
- https://autosaloncenter.com/uploads/file/78068760939.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=how+to+get+free+unlimited+robux+2020PDF 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_off0000f4bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4BD | 18356 bytes |
SHA-256: a7b5ae952f04ca3f96428eb34c04c951ef45f73514f972c539ddd57f8cbd84e7 |
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font_01_sfnt_off00012455.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12455 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013c6c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C6C | 11028 bytes |
SHA-256: 0f446c597c3b2b34b33445459470d7c6156b77f47338317fc622f79d456cb5cb |
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