MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF contains embedded JavaScript, a common technique for exploiting PDF vulnerabilities or redirecting users. The presence of multiple links pointing to compromised CMS upload directories and disposable hosting suggests a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving the execution of embedded scripts to download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9967
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://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b82f77c20c1---wadekufuxiwapadagujonebu.pdf In PDF document text
- http://businesslegalgroup.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/83644815094.pdfIn PDF document text
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613436567ba8b---29046509248.pdfIn PDF document text
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608eb3d916e83---joporamopobipujinovutu.pdfIn PDF document text
- https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/5b877dad097098bd631461fbb9e1cb73/47496986226.pdfIn PDF document text
- http://flirtproducties.nl/ckfinder/userfiles/files/70892584795.pdfIn PDF document text
- http://minhnguyenvn.com/uploads/userfiles/file/55534467840.pdfIn PDF document text
- https://strategieb2b.ca/userfiles/file/56761070679.pdfIn PDF document text
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a8132f92538---12366195679.pdfIn PDF document text
- http://motorlustor.net/userfiles/file/8515138903.pdfIn PDF document text
- https://ozsersogutma.com/upload/files/5802701994.pdfIn PDF document text
- https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16089ff4e3595c---12455798117.pdfIn PDF document text
- https://ktmcollege.org/public_html/userfiles/file/92642471762.pdfIn PDF document text
- http://voijin.com/userfiles/files/munuguluwalaxubumuseza.pdfIn PDF document text
- https://kheops-so.fr/ckfinder/userfiles/files/wenafi.pdfIn PDF document text
- https://mziagroup.com/wp-content/plugins/super-forms/uploads/php/files/ueradlkk92qb3ve138c0hmd2r0/jopemepuj.pdfIn PDF document text
- http://kaizousha.com/js/upload/files/bovegoribenifavijonis.pdfIn PDF document text
- http://anvlaw.com/userfiles/file/49544624398.pdfIn PDF document text
- http://adabaskimerkezi.com/upload/file/9326433068.pdfIn PDF document text
- http://anjilh.com/uploadfile/file///2021043010541963.pdfIn PDF document text
- https://giraffeng.net/infodaily/gen-ckfinder/userfiles/files/zarolubuzekivutiwenu.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=world+environmental+issues+pdfPDF link annotation
- 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_off000100d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100D0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000118e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118E7 | 10820 bytes |
SHA-256: c06896cdd6d2f5916b6f3ea094ee84a0d20eb6c881206330d0a5d5bed9edb058 |
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font_02_sfnt_off000131da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131DA | 18060 bytes |
SHA-256: 95a988020a6f418ef8e03df38a7132023c92fc5bbc94de5e7b1d5f0e31e5f70e |
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