MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external links, many hosted on compromised or disposable domains, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. The embedded JavaScript is a primary mechanism for executing malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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 http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613d47655f4f5---gezekarojuzumolotabozoli.pdf In PDF document text
- http://maraulsan.com/ckfinder/userfiles/files/nafuzuzamalo.pdfIn PDF document text
- https://eslms.com/userfiles/file/83473030873.pdfIn PDF document text
- http://makrostal.pl/user_images/file/69752996246.pdfIn PDF document text
- https://roarmysecurity.ro/mm/file/68124461478.pdfIn PDF document text
- http://perevodvnegiloifond.ru/pict/file/semipu.pdfIn PDF document text
- http://ville-dammarie.com/ckfinder/userfiles/files/zorofefodezufuxuwenebiro.pdfIn PDF document text
- http://hzxgdz.com/images/upload/File/63330149923.pdfIn PDF document text
- https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/013bbecc19e012297b7f19f520987f9d/46252506910.pdfIn PDF document text
- https://heatingboiler.ca/fck_upload/file/tagozizadajetejigovuzuva.pdfIn PDF document text
- https://superchills.com/userfiles/file/lidokejaguwimubinev.pdfIn PDF document text
- http://haohanlegend.com/Uploadfiles/files/kifuwujopegunit.pdfIn PDF document text
- http://strahovka66.ru/userfiles/file/megupupaxosajit.pdfIn PDF document text
- http://nbc.com.vn/ckfinder/userfiles/files/zasegejiduzinedegegesuwe.pdfIn PDF document text
- https://masihpt2.com/contents/files/pulibase.pdfIn PDF document text
- http://projecthouse.bg/uploads/CKfinder/files/29558751478.pdfIn PDF document text
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161308b028210f---wapixopifeg.pdfIn PDF document text
- https://www.shamshabaddiocese.org/files/js/ckfinder/userfiles/files/lebevaxewegowifabebeba.pdfIn PDF document text
- https://renault-service.com/userfiles/vutovixixajuwogidekiki.pdfIn PDF document text
- http://zamokugrofa.sk/admin/fckeditor/file/vavewinesakiri.pdfIn PDF document text
- https://www.tri-or.fr/tri-or/ckfinder/userfilesfiles/60364354841.pdfIn PDF document text
- http://dsraxys.com/uploads/81614116960.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=watch+frozen+free+onlinePDF 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_off0000d445.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD445 | 10316 bytes |
SHA-256: 13627266ed9c8629c3f8f70173feaae3bd41ab467c9cf39db440598010a9311c |
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font_01_sfnt_off0000eb84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB84 | 17808 bytes |
SHA-256: 814d89661894f873cafd62e611e131230aa7086a91e8c870bfbdbfb4f3e35986 |
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font_02_sfnt_off00011996.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11996 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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