MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The sample is a PDF file flagged by ClamAV as a phishing trojan. It contains embedded JavaScript and a link farm pointing to compromised WordPress sites and disposable domains, likely intended to redirect users to malicious content or downloads. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using numerous links on disposable hosting, suggesting an attempt to obscure the true malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9893
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://susta.vn/userfiles/file/likolifodesigis.pdf In PDF document text
- http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fff8440fd0---37787581854.pdfIn PDF document text
- http://prakseologia.eu/userfiles/file/rofovotudo.pdfIn PDF document text
- http://meubelenindex.nl/images/uploads/gugepimudokudimobew.pdfIn PDF document text
- https://binarbaid.com/public_html/userfiles/file/ribugalir.pdfIn PDF document text
- http://gr-chem.com/upload/files/tifejeveze.pdfIn PDF document text
- http://kammatrans.com/userfiles/files/25197143129.pdfIn PDF document text
- http://archiw.gbpopatowiec.pl/img/upload/files/bugemasolojoleji.pdfIn PDF document text
- http://nelly-design.ru/upload/files/62586903471.pdfIn PDF document text
- http://monteconsultants.com/image/upload/File/8088202431.pdfIn PDF document text
- http://hoteldazegliotorino.com/userfiles/files/33224982166.pdfIn PDF document text
- http://kiddeefire.com/media/userfiles/files/71076564510.pdfIn PDF document text
- https://weilaimachinery.com/userfiles/files/98256988579.pdfIn PDF document text
- https://kanat.com/upload/ckfinder/files/6503225834.pdfIn PDF document text
- https://hpx.com.ua/wp-content/plugins/super-forms/uploads/php/files/a51c0d162bf5895d9187addb8e6406a5/93452704381.pdfIn PDF document text
- https://yomadesign.com/userfiles/Proj_Name/files/25170364439.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c1a7a13735---xaxukanawapuxuzajawoweno.pdfIn PDF document text
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/edf0fab73515df58d7e098a71a749450/36983760011.pdfIn PDF document text
- http://launensia.cz/ckfinder/userfiles/files/kotazafidasefagom.pdfIn PDF document text
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16140bbc37569b---fugisisijotopuxopawup.pdfIn PDF document text
- http://ucinnovation.ru/admin/ckfinder/userfiles/files/fobewijegoxivelib.pdfIn PDF document text
- https://dcoderesearch.com/uploads/mogajinamo.pdfIn PDF document text
- http://emanuelmlevin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/34850434091.pdfIn PDF document text
- http://csc0311.com/userfiles/file/20210906005034_m61g1x.pdfIn PDF document text
- https://malabarmail.com/ckfinder/userfiles/files/77256333725.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=new+mod+apk+downloadPDF link annotation
- http://www.cst.rnu.tn/js/ckfinder/userfiles/files/95585783321.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_off0000b368.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB368 | 10248 bytes |
SHA-256: 14ef4aba904e456f8b604981f173845cbbae6481ea6e75955b4415ebfdec9387 |
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font_01_sfnt_off0000ca65.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA65 | 15748 bytes |
SHA-256: 893301f7334a37e172ab3e72ecc9ce004ac81188b482ac37a8769d90c93348bb |
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font_02_sfnt_off0000f2c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2C6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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