MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://pistant.ru/uplcv?utm_term=how+many+frames+per+second+can+your+eyes+see PDF link annotation
- http://sieuthimaynhapkhau.com/upload/files/gemejakagatosiliduwes.pdfIn PDF document text
- https://infoenergie-loire.org/userfiles/file/pafilurodizudirog.pdfIn PDF document text
- http://sun-green.be/ckfinder/userfiles/files/tutavux.pdfIn PDF document text
- http://comp-art.ru/userfiles/file/53649729659.pdfIn PDF document text
- http://duepassidalcentro.it/userfiles/files/61303542810.pdfIn PDF document text
- http://transporteslaplata.com/imagenes_web/file/legazuzazemereku.pdfIn PDF document text
- http://maurovalleferroarchitetto.eu/userfiles/files/66716027333.pdfIn PDF document text
- https://www.hsbofmn.com/ckfinder/userfiles/files/zapotadalavepepinizesem.pdfIn PDF document text
- http://vagtteam.com/userfiles/Files/96652027151.pdfIn PDF document text
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/je9tbdgo4e6qdf2hlu9akj4qgo/52897166356.pdfIn PDF document text
- http://electric-kernbichler.at/33138273568.pdfIn PDF document text
- http://ambiance-cinema.fr/wp-content/plugins/super-forms/uploads/php/files/3e248aa287fd4f74ca8e51b0accc7493/91992932042.pdfIn PDF document text
- http://spbmedaks.ru/sites/default/files/uploads/65340150417.pdfIn PDF document text
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/161391ba0562a1---vogowu.pdfIn PDF document text
- http://shiinamotors.com/js/upload/files/56116964112.pdfIn PDF document text
- https://xn--interpeas-r6a.es/upload/files/wiliwa.pdfIn PDF document text
- https://dpengineers.info/admin/userfiles/file/975425449.pdfIn PDF document text
- https://zevkotodoseme.com/upload/ckfinder/files/dodaboketuzotuz.pdfIn PDF document text
- http://slsnn.ru/content/files/49447568798.pdfIn PDF document text
- http://xn--38-mlcqjbufcz6h.xn--p1ai/userfiles/file/79025027373.pdfIn PDF document text
- https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/2910bb4259477252fe87618b3ca4a8ee/kixetejoxezamivitofemuvet.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_off0000d758.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD758 | 17948 bytes |
SHA-256: de6a498be1377d3205f316d72b0d5453d8cfead553e5a6dcc9456b76af530a86 |
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font_01_sfnt_off00010535.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10535 | 10836 bytes |
SHA-256: e87209996de459511d1b7bc598daf7c97d0792f1a499b45ed9133e8436d017ae |
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font_02_sfnt_off00011e3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E3A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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