MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The sample was identified as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains embedded JavaScript and a link farm pointing to multiple unknown PDF files hosted on various domains, suggesting it's designed to redirect users to potentially malicious content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports the use of compromised or disposable hosting for distributing malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/783c5c5a76d0cc4fa36e3172971cfcd5/99843713321.pdf In PDF document text
- http://langmoon.jp/js/upload/files/88606800529.pdfIn PDF document text
- https://yuvasarkar.org/userfiles/file/vuvikenadesug.pdfIn PDF document text
- https://www.sesc-am.com.br/Selecao/ckfinder/files/35968710263.pdfIn PDF document text
- http://special-pharma.com/upload/files/55404313061.pdfIn PDF document text
- http://noithatdangcap.vn/app/webroot/uploads/files/23842864331.pdfIn PDF document text
- http://omatsuri.kr/data/userfiles/files/joboxukozep.pdfIn PDF document text
- http://master-stroi76.ru/userfiles/file/velefok.pdfIn PDF document text
- https://thokhoavietnam.com/upload/files/xigamorogivopodijodegeli.pdfIn PDF document text
- http://boilerservis.ru/uploads/files/pavelabubifativubusezakis.pdfIn PDF document text
- https://soi.icami.mx/ckfinder/userfiles/files/72009547553.pdfIn PDF document text
- http://steelbo.com/uploads/admins/u0/files/20210911082132.pdfIn PDF document text
- http://jmvlpslimited.com/ci/userfiles/files/zavezubefenejileva.pdfIn PDF document text
- http://career-id.org/ckfinder/userfiles/files/makunuwusipagafuxawax.pdfIn PDF document text
- https://supportsystemsvainc.com/home/ssvi/public_html/ckfinder/userfiles/files/71488657394.pdfIn PDF document text
- https://condicionamentofisico.com/arquivos/file/susezozoroloj.pdfIn PDF document text
- https://ducthai.vn/userfiles/file/wugugopimiwesizeto.pdfIn PDF document text
- https://peintures-descours.fr/fichier/files/vevanisimefofasokotovi.pdfIn PDF document text
- https://ferdavagnar.is/images/fck/file/dazurexituf.pdfIn PDF document text
- http://winhazel.com/indigo/ckfinder/userfiles/files/32849042532.pdfIn PDF document text
- https://windfreeklima.com/upload/ckfinder/files/68680692761.pdfIn PDF document text
- https://stonebuild.bg/f/uploads/files/99192955622.pdfIn PDF document text
- https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/292986808cc168cf6c6108b622df3072/sadawet.pdfIn PDF document text
- https://travelworld.ro/userfiles/file/65055288830.pdfIn PDF document text
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bc796b6a99---45414057118.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=ear+spy+androidPDF link annotation
- 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_off0000de34.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE34 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f64b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF64B | 10208 bytes |
SHA-256: 50ca78db4eb1434a2d94ffa35eb63f76ade8dcfa0a5688958230e1590e330ec9 |
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font_02_sfnt_off00010d36.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D36 | 17564 bytes |
SHA-256: f3e799469629e58c0cd8bc227d19ca9ea62bbd93cb496eb9b2f9cdef2c664671 |
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