MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous links to compromised WordPress sites and disposable hosting, suggesting it's part of a link farm designed to redirect users to malicious downloads. The document body, though heavily obfuscated, appears to be a lure for a statistical learning PDF download, which is a common tactic for distributing malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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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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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://queure.ru/uplcv?utm_term=an+introduction+to+statistical+learning+pdf+free+download PDF link annotation
- http://boxerdapolenta.com/cmsimple/images/file/lekizetosunanogisatiliza.pdfIn PDF document text
- https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/hqg4ruh247uqa9a44tbebrpuf3/29468379771.pdfIn PDF document text
- https://butterfly-propertymanagement.com/userfiles/file/8725943290.pdfIn PDF document text
- https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/14vjgrls4a07r1ics1do2soodt/42157631576.pdfIn PDF document text
- https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/b8fa81775cdeb174d4efcc92de7bac7c/megegizeruw.pdfIn PDF document text
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/16094759ddb089---mizowat.pdfIn PDF document text
- http://lltsg.com/uploadfile/file/%5C/2021060402594210.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b81b609e872---83707057713.pdfIn PDF document text
- https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086053b59eee---32412724760.pdfIn PDF document text
- https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/835dca2e474898b422a3d50d25cf0586/lojukusewafitaxuletik.pdfIn PDF document text
- http://kursadowicz.pl/Upload/file/48589516267.pdfIn PDF document text
- http://sun-green.be/ckfinder/userfiles/files/64755444138.pdfIn PDF document text
- http://aivieksteslaivas.lv/userfiles/file/64336156547.pdfIn PDF document text
- http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160852e8b0e19f---74298761513.pdfIn PDF document text
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/56cd7b988e9900303a7fc4534ba97c5c/tudutalofunudomezitife.pdfIn PDF document text
- https://tigercabinetry.com/wp-content/plugins/super-forms/uploads/php/files/052a20735cea2d7108662116e2d67ead/57590164322.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_off0000f283.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF283 | 5404 bytes |
SHA-256: 582cb261308521b2e0385e033ab248ee948579154a6f64b1994cffac2a4ad71c |
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font_01_sfnt_off00010507.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10507 | 10952 bytes |
SHA-256: 62abdef4809f7284b7ea961b95cb11083cfbb6d763abfdd9a544cc96270eb317 |
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