MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS upload directories or are part of a link farm hosted on disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to phishing or malware distribution sites. The embedded JavaScript is a common technique for initiating malicious actions within PDF documents.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://archism.ru/uplcv?utm_term=high+school+sex+comedies PDF link annotation
- http://dlmberatung.ch/userfiles/files/joguzewosoja.pdfIn PDF document text
- http://phenix-security.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160954617bed0d---62467640821.pdfIn PDF document text
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e901e877eb---mukeguzinezono.pdfIn PDF document text
- http://altaprecision.com/userfiles/file/zevepevugojojubu.pdfIn PDF document text
- http://maduraicaterers.com/app/webroot/js/ckfinder/userfiles/files/31009652164.pdfIn PDF document text
- https://zlato-eu.cz/upload/files/62127977416.pdfIn PDF document text
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b65d92459ad---vawekemasede.pdfIn PDF document text
- https://roofmed.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160849c09eb300---87778919021.pdfIn PDF document text
- https://nutricionintravenosa.com/wp-content/plugins/super-forms/uploads/php/files/bdb7064340c1ef616854bdfad78ba79f/kufitugabulo.pdfIn PDF document text
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/fd3452c669554860670fcf77daadba37/45039695248.pdfIn PDF document text
- https://www.servicioscalibrados.com/wp-content/plugins/super-forms/uploads/php/files/dbeba713d913ecb65cd1b8a6739d32bb/94722276466.pdfIn PDF document text
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607b34e128504---1020073045.pdfIn PDF document text
- https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/mhc51r25ott2brra9f561f9m54/35042098207.pdfIn PDF document text
- https://legacyltg.com/wp-content/plugins/super-forms/uploads/php/files/baee925e6bf39f763a06b53413b772bf/81151223728.pdfIn PDF document text
- https://zlatartopalovic.rs//files/xefajo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e8a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8A6 | 5076 bytes |
SHA-256: 5420e2b77ab232fbe32ba85afde75e0f2208841d5247b2cbf1ea3c52a0279ddf |
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font_01_sfnt_off0000f9ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9CE | 10928 bytes |
SHA-256: f46656000567410ccf0db267cd0b1b13214fc9762888f0549af1569af98d9233 |
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