MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and multiple external URIs, many of which point to compromised WordPress sites or disposable hosting. These links form a link farm, suggesting an attempt to direct users to download potentially unwanted or malicious software, as indicated by the 'ML_NYX_PDF_MALICIOUS' and ClamAV detections. The embedded JavaScript likely facilitates the redirection or download process.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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 http://garant-fond.ru/ckeditor/ckfinder/userfiles/Images/files/18831399889.pdf
- http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/af79a78ff0092585f45722f4a18fbef5/4631030820.pdf
- http://auto-rad.pl/userfiles/file/juben.pdf
- http://csc0516.com/userfiles/file/20210911011107_gja0f2.pdf
- https://iieng.org/editor/ckfinder/userfiles/files/kagawefuluvujek.pdf
- http://rebornfair.com/FileData/ckfinder/files/20210910_1F8F3741D99DC183.pdf
- https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/9e3e944e6253140fafd3cb883df3cd1b/luwelukopuvunu.pdf
- https://hamzsabegi60szallo.hu/UserFiles/File/poliwojazojisak.pdf
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/8213tlrcrfudqi6sdlnp2n4iih/89167731980.pdf
- https://mamap.in/ci/userfiles/files/lipitejogekakivujutemi.pdf
- http://schroniskoorzechowce.pl/ckfinder/userfiles/files/24167754323.pdf
- https://csp-pub.com/stockages/files/revisupasalijukenumur.pdf
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/b6b2b713bd7d1e63c70438a5c53e82c1/58901825433.pdf
- http://bamor.org/userfiles/file/vekesowiv.pdf
- http://telegid.tv/userfiles/file/xosopetufalimasexeret.pdf
- http://jshtextile.com/UserFiles/file///81251785836.pdf
- http://www.park-seversk.ru/other/js/ckfinder/userfiles/files/suwina.pdf
- https://rizecanreklam.com/images/file/sebonetojikujusuvas.pdf
- http://vincentianssjp.com/userfiles/file/9337730805.pdf
- http://www.taxivanclass.com/uploads/ckfinder/files/60451655230.pdf
- http://mtcongnghiepxanh.com/upload/fckimagesfile/1901869903.pdf
- http://atdawnwelift.com/userfiles/file/rimofomamesoti.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=asphalt+9+legends+android+download
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d713.binf092b3565091f271786a425a5d97a3b37986e2d83e328040aaef88f90b80ab77 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD713 | 18032 bytes |
font_01_sfnt_off00010558.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10558 | 16792 bytes |
font_02_sfnt_off00011d6f.bin2e3f905fa663bc976a48ffde22ffc2e2f80ce3f658a7189c06a8cf378a5d148d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D6F | 10908 bytes |
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