MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to distribute malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://oniceh.ru/uplcv?utm_term=drinking+while+driving PDF link annotation
- http://zzfcw.com/file/fkimg/file/95555313887.pdfIn PDF document text
- https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/79s7hk26uaqr7kg3ro49nn0af6/55072060551.pdfIn PDF document text
- http://baigeleather.com/userfiles/file/11527897849.pdfIn PDF document text
- http://lctrading-gmbh.com/ckfinder/userfiles/files/46972373475.pdfIn PDF document text
- https://adurucui.com/ckfinder/files/zibetabaxima.pdfIn PDF document text
- http://bacsiha.com/public/ckfinder/userfiles/files/jokotovekarefagutapomev.pdfIn PDF document text
- http://stoewebdesign.no/userfiles/file/10346461734.pdfIn PDF document text
- http://algarestofos.pnh.pt/js/ckfinder/userfiles/files/bixefasomatuxixiri.pdfIn PDF document text
- http://zrdb-drogbud.pl/Upload/file/juzazolerop.pdfIn PDF document text
- http://sro52.ru/uploads/files/jewusizuvosabanigopiletab.pdfIn PDF document text
- http://www.radeton-cz.vasestranky.cz/ckfinder/userfiles/files/sesijomifujoki.pdfIn PDF document text
- http://zulaikhatextile.com/userfiles/files/56216652507.pdfIn PDF document text
- http://morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614f127ab63b0---konosugifemes.pdfIn PDF document text
- http://esistore.be/userfiles/file/54495813258.pdfIn PDF document text
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146008991ec3---65057496821.pdfIn PDF document text
- https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/df06cd2e9573f563aa42affd6641aee4/31557257929.pdfIn PDF document text
- http://kxqcgs.com/filespath/files/20210909140017.pdfIn PDF document text
- https://investincarpathians.eu/app/webroot/media/files/dowaxarurolupamanofixuvi.pdfIn PDF document text
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/4ee6364421cf4fc058d903ebd789d802/5667991053.pdfIn PDF document text
- https://lexcyberia.com/userfiles/files/kufimizuzajino.pdfIn PDF document text
- http://mofrantech.com/userfiles/file/63273025640.pdfIn PDF document text
- http://maristaslardero.es/userfiles/file/59040376294.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_off0000b13e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB13E | 15224 bytes |
SHA-256: d62c7a226be24936da1ddea194e3c4a9bdbf2a954fd0541d20b85054ad728f5e |
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font_01_sfnt_off0000d75c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD75C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ef73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF73 | 10224 bytes |
SHA-256: cc1e744ea42dd90053427783890c1d57132eb3ac130796953f6b42216f2e7b60 |
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