MALICIOUS
132
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a link farm pointing to multiple distinct hosts, many of which appear to be compromised WordPress sites. The ClamAV detection indicates this is a known phishing or trojan variant. The embedded JavaScript likely facilitates the download and execution of a secondary payload from one of the provided URLs.
Machine Learning
- Nyx PDF Classifier suspicious score 0.4430
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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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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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://palcev.ru/userfiles/file/pagetituw.pdf In PDF document text
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b85724b716b---27283289916.pdfIn PDF document text
- http://glotecgh.com/upload/editor/file/87734677844.pdfIn PDF document text
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b169e6466b7---83901382568.pdfIn PDF document text
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/160a58a9a6a9b5---96427690280.pdfIn PDF document text
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d9c71082049---18788426460.pdfIn PDF document text
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160e28f9d233d2---30891456848.pdfIn PDF document text
- http://www.christianhouseshare.com.au/ckfinder/userfiles/files/32835715725.pdfIn PDF document text
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16072cbcddb77d---fojoximivanaretepupu.pdfIn PDF document text
- https://jaiminsales.com/ckfinder/userfiles/files/37312716675.pdfIn PDF document text
- https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609122d1489cc---8911354892.pdfIn PDF document text
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1607c3db48dff0---83654039927.pdfIn PDF document text
- https://u-spot.biz/js/ckfinder/userfiles/files/46940684971.pdfIn PDF document text
- http://stavclearing.ru/upload/files/23463545938.pdfIn PDF document text
- http://thingsantiquesla.com/userfiles/files/lodenabofebidupudumudu.pdfIn PDF document text
- http://raczcsalad.hu/files/94548596694.pdfIn PDF document text
- https://dynasty888.com/image/files/20210804_235533.pdfIn PDF document text
- http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e2d4811b667---jerumumiwemimimukedodu.pdfIn PDF document text
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160cf5b23b8359---87619194332.pdfIn PDF document text
- http://modero.vn/upload/files/tukaguzonijezojozaxoxi.pdfIn PDF document text
- https://dbjadow.pl/attachments/file/97860627445.pdfIn PDF document text
- http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc835ec944d---32627187371.pdfIn PDF document text
- http://foto-klub.dk/userfiles/file/90754678664.pdfIn PDF document text
- http://tractortools.cz/ckfinder/userfiles/files/zumarixakemon.pdfIn PDF document text
- http://dentherapia.hu/files/file/25838851982.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=operations+of+functions+divisionPDF link annotation
- 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_off0000df3c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF3C | 16288 bytes |
SHA-256: 21bbc59bc0f1ae4e767574cc1b76ae9cc0ca3bac81bb3f79f41c62b9032468e7 |
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font_01_sfnt_off00010943.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10943 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001215a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1215A | 10756 bytes |
SHA-256: c45bdb5b3b66d026307359d596391aa0853ac63ab445a065ca1dd142681b6c5a |
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