MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious document, likely delivered via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 6
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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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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://crysiq.ru/uplcv?utm_term=earnshaw+theorem+pdf PDF link annotation
- https://lienlacanien.com/img_pages/file/bimesomewos.pdfIn PDF document text
- http://harmonie-avion.fr/actualite/files/60532658780.pdfIn PDF document text
- https://diarch.in/WYSIWYGImage/file/nefudu.pdfIn PDF document text
- http://tieclangman.com/Images_upload/files/62251468078.pdfIn PDF document text
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/epc120m9h6bpvnj5luajqvcebr/kafiwiroxuzubudoveja.pdfIn PDF document text
- https://rybczewice.pl/userfiles/file/37138330920.pdfIn PDF document text
- https://dollarplus98.com/images/upload/files/demilipedezezu.pdfIn PDF document text
- http://studiotecnicoarduini.eu/userfiles/files/witofogavusesume.pdfIn PDF document text
- http://eprdel.cz/userfiles/file/ziwozaveko.pdfIn PDF document text
- http://utopiasacramento.org/clients/0/07/071cdeedc048305be324eb10ab8031d4/File/dutirekujuvavisixa.pdfIn PDF document text
- http://studioagronomoserragiotto.eu/userfiles/files/nufera.pdfIn PDF document text
- http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/160f0a42922f9f---72851748294.pdfIn PDF document text
- https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/2ecd7480799d0bdbc751d47d54796445/30812843520.pdfIn PDF document text
- https://loyallcanada.ca/editor_files/file/pipanifoju.pdfIn PDF document text
- http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080f1d8208fd---buserigesesitixolinom.pdfIn PDF document text
- https://santevita-bg.com/ckfinder/userfiles/files/banaw.pdfIn PDF document text
- http://berbun.com/user_img/file/vebavex.pdfIn PDF document text
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/c189edfb494900fad09d93d28845c153/67554280898.pdfIn PDF document text
- http://alisawedding.com/upload/users/files/pesumusizemaxaxozak.pdfIn PDF document text
- https://lawina-radom.pl/files/file/welitodepubijuroxugonenuk.pdfIn PDF document text
- http://bc-arman.kz/ckfinder/userfiles/files/nubomegi.pdfIn PDF document text
- http://astorandblack.net/emailer/userfiles/file/91727366249.pdfIn PDF document text
- http://hopkim.vn/upload/files/pibabifaxakimeteguw.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_off0000c95b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC95B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e16d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE16D | 17976 bytes |
SHA-256: 6d87ef7c233709e290ed31dc3a9d1d452abe8bdda99281b386aa2d1aa9f6061a |
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font_02_sfnt_off00010ff9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FF9 | 10696 bytes |
SHA-256: af1fbde8a33c7261b537bb1badbdcfcc4226cd58d185de4ddd51a20698b9ed4d |
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