MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file identified as malicious by ML classifiers and ClamAV. It contains embedded JavaScript and numerous external URIs, many of which are part of a link farm hosted on disposable or compromised domains. These links likely serve as lures to redirect users to phishing sites or download further malicious content.
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://catamma.ru/uplcv?utm_term=how+to+turn+on+a+phone+without+a+power+button+and+volume+button PDF link annotation
- https://nucamsa.es/userfiles/files/57693566479.pdfIn PDF document text
- http://zgic.ru/!upload/files/67142254175.pdfIn PDF document text
- http://moscreen.in/cmsfiles/file/3382475737.pdfIn PDF document text
- https://pharma-tools.pl/galeria/file/43053899451.pdfIn PDF document text
- http://alfonsoguiggiarchitetto.it/userfiles/files/36913669538.pdfIn PDF document text
- http://rideco.hu/upload/file/ravebatawa.pdfIn PDF document text
- http://nppmaudaha.in/ckfinder/userfiles/files/watinalufajujivi.pdfIn PDF document text
- https://tonmathunglan.vn/upload/files/gopakafemagepolin.pdfIn PDF document text
- http://zanethompson.com/userfiles/file/pevosej.pdfIn PDF document text
- https://elperrocallejero.info/ckfinder/files/4840718517.pdfIn PDF document text
- http://ketphatthinh.vn/upload/files/fikeriwupidudusalukivarol.pdfIn PDF document text
- https://sailstudy.in/ckfinder/userfiles/files/51936280500.pdfIn PDF document text
- https://elsa-daulte.com/ckfinder/userfiles/files/rosajotad.pdfIn PDF document text
- http://otczenacts.com/media/files/93743204668.pdfIn PDF document text
- https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/jihihvvdhko4u1ahkcahdiroi1/3820125306.pdfIn PDF document text
- https://inchirierielicopter.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16133efa029e20---menidevonudigusoxoliga.pdfIn PDF document text
- http://sartoriaventurini.com/userfiles/files/zawowenavo.pdfIn PDF document text
- http://bbdecontra.com/userfiles/files/bataju.pdfIn PDF document text
- https://codefon.hu/js/ckfinder/userfiles/files/46211823759.pdfIn PDF document text
- https://kristinanamaste.eu/files/basebejimuwegewefet.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f81cb3464c.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_off0000d934.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD934 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f14b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF14B | 10872 bytes |
SHA-256: 83b885e7827480fddfbb4db60c4fbda1f2afbaa356cc613151915a2bd1f6459b |
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font_02_sfnt_off000109ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109EA | 19228 bytes |
SHA-256: 3d5d6ca44217196384cc51cc641c310634597b440d86be695d6228e7081bd277 |
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