MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious. It contains a large number of embedded URLs, many of which point to disposable domains and are structured as link farms, suggesting a phishing or malware distribution campaign. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic specifically indicates this behavior. No scripts were extracted, but the overall structure and URL patterns are indicative of a malicious document designed to redirect users to harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
Heuristics 5
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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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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://synerhu.ru/uplcv?utm_term=how+to+clear+default+apps+in+android PDF link annotation
- https://civilkontroll.hu/uploads/file/nizitarix.pdfIn PDF document text
- http://uslugi-ogrodnicze.pl/pliki/File/kuxepizunimiw.pdfIn PDF document text
- https://cukimentescukraszda.hu/files/files/kidadurazejex.pdfIn PDF document text
- http://crosswaysrecruitment.com/userfiles/file/sotofesivawegewevexobo.pdfIn PDF document text
- http://fipjp.com/userfiles/file/53632313504.pdfIn PDF document text
- http://union-montage.pl/userfiles/file/40490230796.pdfIn PDF document text
- https://taipeitccia.org/CKEdit/upload/files/sexedifowabevomi.pdfIn PDF document text
- https://tungafilm.com/dorceiys/ckfinder/userfiles/files/masaninefefeditenape.pdfIn PDF document text
- http://lse.hu/userfiles/file/purijolalorililopudidepo.pdfIn PDF document text
- http://shamayachts.com/upload/file/27102737808.pdfIn PDF document text
- https://chung-pei.com/userfiles/file/xazivupiramujakipuzevafuf.pdfIn PDF document text
- https://minipowerpack.net/upload/files/67607120253.pdfIn PDF document text
- https://theipbuzz.com/images/file/laxarujezimepaxitura.pdfIn PDF document text
- https://immo-macedo.lu/userfiles/files/344609576.pdfIn PDF document text
- http://rotarylaspalmas.org/documentos/file/45107880149.pdfIn PDF document text
- http://sushimura1.com/uploads/files/wirijinaguvupijal.pdfIn PDF document text
- http://mai-colle.jp/userfiles/file/85639034811.pdfIn PDF document text
- http://eiffelflowersquesnel.com/userfiles/file/moxali.pdfIn PDF document text
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/1bacc14281c99586514ff197e2fc4cf0/zelojijodemegigu.pdfIn PDF document text
- http://bowlingkillers.com/imgdb/files/28015292834.pdfIn PDF document text
- https://pracowniatechart.pl/fckpliki/file/wapotenexerer.pdfIn PDF document text
- http://pc580.cn/upload_fck/file/2021-9-11/20210911042606479731.pdfIn PDF document text
- http://salkim.com/userfiles/file/natojuxukefunababojibot.pdfIn PDF document text
- https://peoplehelppeople.net/uploads/File/votif.pdfIn PDF document text
- http://nextgenship.net/upload/file/20210906163096901776.pdfIn PDF document text
- http://centromedicoveterinarioadda.com/userfiles/files/kuwejonoxemujalewanefax.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_off0000bffb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFFB | 16920 bytes |
SHA-256: 65b8e8cb415de3271c541e975cb2345aa26017a27e0b209a24405c4367bea01a |
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font_01_sfnt_off0000eb8c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB8C | 10792 bytes |
SHA-256: 0c22b94929c02580cd6d08b2e968af5e202b18e24560c36250681f9562f0e659 |
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font_02_sfnt_off0001048e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1048E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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