MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF document identified as malicious by ML classifiers and ClamAV, with a high probability of being a phishing or SEO manipulation tool. It contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users. The embedded JavaScript likely facilitates the redirection or obfuscates the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 https://infrive.ru/uplcv?utm_term=9.+s%C4%B1n%C4%B1f+ingilizce+1.+d%C3%B6nem+2.+yaz%C4%B1l%C4%B1+konu+anlat%C4%B1m%C4%B1 PDF link annotation
- http://pamat.ro/UserFiles/file/bomesakivimumoka.pdfIn PDF document text
- https://systematix.pl/userfiles/file/32325071753.pdfIn PDF document text
- https://thefertilizerequipment.com/d/files/judesemujojuzi.pdfIn PDF document text
- https://binarbaidservices.com/public_html/userfiles/file/pikezoxatigomapumedetuvem.pdfIn PDF document text
- https://mannerfeltdesignteam.se/ckfinder/userfiles/files/fafikifilalozukonidofizo.pdfIn PDF document text
- http://www.allatpatikapecs.hu/images/file/44679604269.pdfIn PDF document text
- http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610441c184105---fexuputizesuw.pdfIn PDF document text
- http://ceresasrl.it/userfiles/files/9947558356.pdfIn PDF document text
- http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608dfa26c10e0---loruwizosixej.pdfIn PDF document text
- https://blueridgelightingandcontrols.com/wp-content/plugins/super-forms/uploads/php/files/9a68aa10281cae393dda4221a5fcfedb/beser.pdfIn PDF document text
- http://phsclassof1970.com/clients/875774/File/nitapafobepab.pdfIn PDF document text
- https://anup.bo/images/files/37627524805.pdfIn PDF document text
- https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/oj9261in8k6k3m1atnef6bhtff/38941660986.pdfIn PDF document text
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca42b0bdc4---21591388170.pdfIn PDF document text
- http://kappp.ru/js/ckfinder/userfiles/files/55540242289.pdfIn PDF document text
- https://fnb-concepts.com/images/uploads/files/devizosibuz.pdfIn PDF document text
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/d61b0358cd1666adcc37647124b2a39d/50758202115.pdfIn PDF document text
- http://pytextiles.com/userfiles/file/62145989869.pdfIn PDF document text
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb72f25933---8306808844.pdfIn PDF document text
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/160ac69f9a9edc---27303697811.pdfIn PDF document text
- http://sieuthibds.net/images/files/22428708279.pdfIn PDF document text
- https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/a1fcd416eae5afe6a988711e17e16afe/labodelidat.pdfIn PDF document text
- http://lempreintedubois.fr/userfiles/lempreintedubois.fr/file/xezopidejeromemomoduxus.pdfIn PDF document text
- http://workprohealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091b89a3d180---64525488058.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_off0000bf3c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF3C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d74e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD74E | 17852 bytes |
SHA-256: d1224a10df5ea96ac180a7b5eff48597011b831c78e4404c4d48f8cdb9c3f70d |
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font_02_sfnt_off0001022a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1022A | 11652 bytes |
SHA-256: 0aeb884b28a9dfcf0969f635452fcd80dd4e8da0e1dea7ac5974f925c5ac2a6b |
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