MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, including one identified as a potential redirector with a 'utm_term' parameter. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The presence of a visual download button further supports a lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://nomylo.ru/uplcv?utm_term=yts+yify+proxy PDF link annotation
- http://intertermo.nl/userfiles/file/65214303325.pdfIn PDF document text
- http://joyerialaplaza.com/ckfinder/userfiles/files/jubuzux.pdfIn PDF document text
- http://studiobardinisrl.com/userfiles/files/64411585908.pdfIn PDF document text
- http://nujhimachal.in/img/uploads/files/19328513934.pdfIn PDF document text
- http://driver-jazda.pl/upload/file/toxolexurixuwo.pdfIn PDF document text
- http://eldmsh1.ru/js/ckfinder/userfiles/files/97880159168.pdfIn PDF document text
- http://zulassungsdienst4you.de/bilder/file/67291268216.pdfIn PDF document text
- http://bouwbedrijfansing.nl/userfiles/file/moxijafufonenuzebafazi.pdfIn PDF document text
- https://0924055971.com/uploads/files/202108312333092412.pdfIn PDF document text
- http://startmatbaa.com/userfiles/file/xapolotoviwexuzebopito.pdfIn PDF document text
- http://safiorida.nl/operatori/userfiles/file/28847360227.pdfIn PDF document text
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613140a5518b3---zubuvutitalam.pdfIn PDF document text
- https://vaitinhdien.com/app/webroot/upload/files/xubexamemunamegon.pdfIn PDF document text
- http://ketphatthinh.vn/upload/files/kodiwulalodakozimu.pdfIn PDF document text
- https://vgi-vn.vn/app/webroot/img/files/dutabikafuxotapop.pdfIn PDF document text
- http://bytip.net/filespath/files/20210901063556.pdfIn PDF document text
- http://gelateriacool.it/userfiles/files/vovudawirinix.pdfIn PDF document text
- http://iact2001.com/userData/board/file/gewozemomuvalasabedi.pdfIn PDF document text
- http://vantaidongsaigon.com/uploads/files/vogoraxiwemokekomepep.pdfIn PDF document text
- http://tamlaproject.com/userData/board/file/melanobipamijezowokeve.pdfIn PDF document text
- http://transportdiverse.com/uploads/files/vatunaxifosemip.pdfIn PDF document text
- http://bluecars.pl/userfiles/file/67771854652.pdfIn PDF document text
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/db6r3eoveqi7klqq86cpgm2r02/35501397749.pdfIn PDF document text
- https://baxsporthorses.com/userfiles/file/18633424108.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_off0000c708.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC708 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000df1f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF1F | 10108 bytes |
SHA-256: 7b7bbded3938f1067b21e5c02349117990c385092ab85195dba6e207ad9b757c |
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font_02_sfnt_off0000f5c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5C6 | 16572 bytes |
SHA-256: a2ca2705a6e5605825e196ce35c37999019df15ec852bef44b54f67b9e7d1488 |
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