MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a high number of external URIs, many of which are part of a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware via the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9930
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://nomylo.ru/uplcv?utm_term=boku+no+hero+academia+eng+sub PDF link annotation
- http://wib24-admin.de/uploads/file/xediti.pdfIn PDF document text
- https://serviceservice.eu/userfiles/file/43518089246.pdfIn PDF document text
- http://www.juniorcollege.cl/ckfinder/userfiles/files/pisazijotezuribewovoka.pdfIn PDF document text
- https://ashasuchikala.com/ckfinder/userfiles/files/jemoxemudiwikasokoxev.pdfIn PDF document text
- https://auto-rujo.com/images-editor/file/suzudefubutasu.pdfIn PDF document text
- http://xn----0tbbbfo0f.xn--p1ai/userfiles/file/30283936646.pdfIn PDF document text
- http://aviapartner.biz/js/ckfinder/userfiles/files/womobanijojejojaguzof.pdfIn PDF document text
- http://pizzeriadevita.it/userfiles/files/21971614720.pdfIn PDF document text
- https://mpressivelabels.com.au/application/third_party/ckfinder/userfiles/files/7749070883.pdfIn PDF document text
- https://ferdavagnar.is/images/fck/file/39734406799.pdfIn PDF document text
- http://coytex.net/ckfinder/userfiles/files/94204171742.pdfIn PDF document text
- http://webursitet.org/Files/file/22925923681.pdfIn PDF document text
- http://aow.infogestnet.it/ckfinder/userfiles/files/35175076242.pdfIn PDF document text
- https://dtd.com.pk/ckfinder/userfiles/files/levisubikegowezulutixaf.pdfIn PDF document text
- https://sgcaregiver.org/contents/files/rurejemufimavemu.pdfIn PDF document text
- http://iwort.de/userfiles/file/94657251168.pdfIn PDF document text
- https://braindevelopmentmaps.org/userfiles/files/53475445538.pdfIn PDF document text
- http://srilakshmienterprises.net/uploads/96887585826.pdfIn PDF document text
- http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bd4fb52ec3---73141553772.pdfIn PDF document text
- http://studioagronomoserragiotto.eu/userfiles/files/1405760121.pdfIn PDF document text
- http://smartdeal.pl/files/upload/files/koretulagukumole.pdfIn PDF document text
- https://imagebeaute.fr/userfiles/file/27018528637.pdfIn PDF document text
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/895cc50539e5d6bfee6cb43691ef62cc/dolerotat.pdfIn PDF document text
- http://kaies.cn/upfiles/210910130204634467vaacpy.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f04b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF04B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010858.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10858 | 1680 bytes |
SHA-256: 6c08887b596ecb472c5a0482df8c2f828d83fc5b5d16111ed0caa1fced1b35dc |
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font_02_sfnt_off00011055.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11055 | 11060 bytes |
SHA-256: 23cc35238d3dcc497aa18969ae98d5f267fb34868e4d9414d751872b5c75e889 |
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font_03_sfnt_off000129ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129AB | 24840 bytes |
SHA-256: 071b32ee226b4e3d6375085719a7ca0d32128b55cae4e10e462849034bdbd453 |
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