MALICIOUS
164
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 hosted on compromised or disposable domains, 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 0.9990
Heuristics 7
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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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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://medvor.ru/uplcv?utm_term=kissanime+app+apk+latest+version PDF link annotation
- https://snf.styleguides.ch/userfiles/files/23573343568.pdfIn PDF document text
- http://needychild.org/ckfinder/userfiles/files/xezesovulovisitirigotevo.pdfIn PDF document text
- http://sp2wronki.pl/fotki/fotki/file/leparoriwolo.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139f5e769588---8460082288.pdfIn PDF document text
- http://razzledazzleevents.in/userfiles/file/gomabov.pdfIn PDF document text
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/ddce208ad1b000529122805d953ed20b/38546967432.pdfIn PDF document text
- http://zkmeiqi.com/admin/ckfinder/upfile/files/vamekabosoxilop.pdfIn PDF document text
- https://phongkhamtamthan.net/uploadeditor/files/59345441693.pdfIn PDF document text
- http://irvinenott.co.uk/ckfinder/userfiles/files/67933541431.pdfIn PDF document text
- http://omatsuri.kr/data/userfiles/files/48407235028.pdfIn PDF document text
- http://bscartridge.com/pic/powokepegureludem.pdfIn PDF document text
- https://mcorretajes.cl/upload/file/56734138486.pdfIn PDF document text
- http://cerritos.songhakbbq.com/uploads/files/bodawelaj.pdfIn PDF document text
- http://mackyz7automotive.com/js/upload/files/podasu.pdfIn PDF document text
- http://nationalcoopadvisors.com/userfiles/files/14062410279.pdfIn PDF document text
- https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f81a030188---puzisomodisinesedapim.pdfIn PDF document text
- https://labelmarket.eu/data/file/pixofexeganimekametofup.pdfIn PDF document text
- http://sentezetutmerkezi.com/upload/ckfinder/files/94712492754.pdfIn PDF document text
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614d6459d1f90---84903907181.pdfIn PDF document text
- https://b2cdemo.tickets.com/content/files/21353445109.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_off0000b1b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1B2 | 10564 bytes |
SHA-256: 414b837f526e4f5bc1598123bfa4a76ac1eff9c7aad1d061a37deecb63214437 |
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font_01_sfnt_off0000c9c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9C8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e1da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1DA | 19032 bytes |
SHA-256: 414062a9ae5fc98d71754c0d0e136fa26cb502c2fabd2580dc15e6a8e107889c |
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