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. 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 exploiting PDF vulnerabilities or redirecting users.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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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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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://krisoc.ru/uplcv?utm_term=kotlin+intellij+vs+android+studio PDF link annotation
- https://mmszke.hu/files/file/75068505208.pdfIn PDF document text
- https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/fe3e7169939512b00bdf8caee911f42e/55040371853.pdfIn PDF document text
- http://lblussana.it/images/file/dibuto.pdfIn PDF document text
- https://es21sys.com/userfiles/file/xifoxelafakagetabapilu.pdfIn PDF document text
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613f4db9ac6cf---putapowikok.pdfIn PDF document text
- http://kimsanghun.com/upload/userfiles/file/2021952159169532.pdfIn PDF document text
- https://rosanaalvarracin.com/userfiles/file/58186974030.pdfIn PDF document text
- http://speaklifeiamgreatness.com/files/files/63815762636.pdfIn PDF document text
- http://barcelonasixtytwo.com/userfiles/file/dipumutefeduwigewivi.pdfIn PDF document text
- https://mondoaudio.it/img/uploaded/file/24399985079.pdfIn PDF document text
- http://jeansresource.com/js/ckfinder/userfiles/files/suwebuborufigojajozu.pdfIn PDF document text
- https://bohemiamaestro.com/webpagebuilder/ckfinder/userfiles/files/bitodawosonemovuguravabek.pdfIn PDF document text
- https://waxparadise.pl/userfiles/file/3087367906.pdfIn PDF document text
- https://aldwalia.com/userfiles/files/75116430816.pdfIn PDF document text
- http://falconfam.com/ckfinder/userfiles/files/xezoritagubevezi.pdfIn PDF document text
- http://dakov.hu/_user/file/65028635929.pdfIn PDF document text
- http://asclyziarskyklub.sk/userfiles/file/votasomumiwonalogidajunir.pdfIn PDF document text
- http://ducthoaudio.com/upload/files/58633810139.pdfIn PDF document text
- https://spandoekland.nl/userfiles/file/dalanewoti.pdfIn PDF document text
- http://spbmedaks.ru/sites/default/files/uploads/41347467428.pdfIn PDF document text
- http://webursitet.org/Files/file/16883151052.pdfIn PDF document text
- http://bfr-bialapodlaska.pl/userfiles/file/89796645947.pdfIn PDF document text
- https://bhiringisamsankalimandir.org/ckfinder/userfiles/files/gonetorufiputetovebalel.pdfIn PDF document text
- https://cakamuzejs.riga.lv/ckfinder/userfiles/files/lizewuzarobiwop.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_off0000df50.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF50 | 10528 bytes |
SHA-256: eee0cb64a9cd497c2edfd489d5c7284ffcb9ec2619183ca7ad8c0547c03932f0 |
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font_01_sfnt_off0000f76b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF76B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010f7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F7D | 17848 bytes |
SHA-256: 8f6e08b4d50c8b511165578a0088303b4f2161cf2603d382ba9d1f64a9df4493 |
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