MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs pointing to disposable domains, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or distributing further malicious content. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports the idea that this PDF is part of a link farm designed to obscure malicious destinations.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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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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://synerhu.ru/uplcv?utm_term=copy+a+table+from+pdf PDF link annotation
- https://parc-hotel.info/file/24878356469.pdfIn PDF document text
- https://realxenon.ru/uploads/files/60701279260.pdfIn PDF document text
- http://bookblog.kr/data/file/files/siwoxulekinesoje.pdfIn PDF document text
- https://md-bud.pl/szklo/photos/file/gesomelovuperogiju.pdfIn PDF document text
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/161410a13c05a8---nefituziluvidoxonifu.pdfIn PDF document text
- http://studioarchperissinotto.eu/userfiles/files/79996541920.pdfIn PDF document text
- http://naturallabs.de/userfiles/file/64812671085.pdfIn PDF document text
- https://ssekolkata.com/ckfinder/userfiles/files/6189643885.pdfIn PDF document text
- http://gibisch.biz/files/files/fuvova.pdfIn PDF document text
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/02d7173319b23bb957b763a606a556c3/94386949705.pdfIn PDF document text
- https://xnkvinatimex.com/uploads/files/60917640034.pdfIn PDF document text
- http://honderhotel.com/UploadFiles/FCKeditor/20210913204940.pdfIn PDF document text
- http://aquarium-kochi.com/app/webroot/ckfinder/userfiles/files/29353204755.pdfIn PDF document text
- https://barrierball.cl/ckfinder/userfiles/files/98624021585.pdfIn PDF document text
- https://www.jdconstinc.com/ckfinder/userfiles/files/60191790952.pdfIn PDF document text
- http://bezpiecznamlodosc.org/files/file/46667238034.pdfIn PDF document text
- http://dyccpharma.com/upload/files/61057286869.pdfIn PDF document text
- http://multi-accueil.fr/ressource/site-image/files/14007117788.pdfIn PDF document text
- https://vozilasavozacem.rs/files/bobemizovotixetiduf.pdfIn PDF document text
- http://www.medicellbank.com/userfiles/files/fiturodawuduv.pdfIn PDF document text
- http://portofmiamitunnel.com/system/js/back/ckfinder/userfiles/files/4731661946.pdfIn PDF document text
- http://kondicionery-ivanteevka.ru/upload_picture/file/49412171608.pdfIn PDF document text
- http://rosniyom.com/userfiles/files/32858914284.pdfIn PDF document text
- http://barcabianca.eu/upload/file/jejizusub.pdfIn PDF document text
- http://robalton.es/Albums/images/file///zezetozasapapaxeva.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_off0000b567.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB567 | 10580 bytes |
SHA-256: 34afba4d85276088460f904ee479aa6e591a37b24ae4ed0c7ea98d1d076192ff |
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font_01_sfnt_off0000cd69.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD69 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e57b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE57B | 15264 bytes |
SHA-256: 7f55c267fbf34f73ad3680f001f2ce9dc552198463a5adbc0515a82266258300 |
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