MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external URIs, many of which point to compromised CMS upload storage or are part of a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery via the embedded links.
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://crewmak.ru/uplcv?utm_term=thoptv+for+ios+free+download PDF link annotation
- https://dveropolis.ru/upload_picture/vesivusepoz.pdfIn PDF document text
- http://www.photonics-science.com/ckfinder/userfiles/files/zegovufowojakozupejete.pdfIn PDF document text
- http://sweethomedelivery.com/ckeditor/ckfinder/core/connector/php/uploads/files/81056674901.pdfIn PDF document text
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16131d0dfdc1d4---jivafuzizolexaxow.pdfIn PDF document text
- http://canadianartistic.com/userfiles/file/27951993159.pdfIn PDF document text
- http://bcslaw.hu/admin/fck_upload/file/75126409295.pdfIn PDF document text
- https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/enpcdr3j85nfeh80ionbabn2f5/34540161714.pdfIn PDF document text
- http://erpos.sk/data/files/58084141183.pdfIn PDF document text
- http://avtokit116.ru/!upload/files/dawejebupidaribegirin.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/161368b9d09c30---18301603784.pdfIn PDF document text
- http://thriftstorewebsites.net/flash/thriftstorewebsites.net/file/fotapudixur.pdfIn PDF document text
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/c04f6719be55c25f4e5291300dabdc98/49841208075.pdfIn PDF document text
- http://feach.ie/images/uploads/file/30652521564.pdfIn PDF document text
- https://silatur.com/js/ckfinder/userfiles/files/85876490164.pdfIn PDF document text
- https://wroclawmodelshow.pl/ckfinder/userfiles/files/58091681291.pdfIn PDF document text
- http://tauroconsulting.pl/userfiles/file/renebupojivugupikabawaf.pdfIn PDF document text
- http://banner-ever.com/ckImg/files/velawuponusijeta.pdfIn PDF document text
- https://picinterior.com/ckfinder/userfiles/files/61563786138.pdfIn PDF document text
- http://cctsw.net/whly/up_files/FCK/file/20210907_094545_123.pdfIn PDF document text
- http://car-zone.sk/data/data/file/rumema.pdfIn PDF document text
- http://sbstroy53.ru/img/files/97962108671.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_off0000de47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE47 | 10712 bytes |
SHA-256: 7f0eccd0d0c5dfa7f34940bfda7c2393c4d1e3d94451c659d7c8e9912fa40c3c |
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font_01_sfnt_off0000f6e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6E6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010ef8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EF8 | 17376 bytes |
SHA-256: 17c71baaebd5829d2b993589c238660d6df3f3d864a5d4e37eaddaee679cadb0 |
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