MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of external URLs, many pointing to disposable or unknown domains, consistent with a link farm designed to distribute malicious content or phish for credentials. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a deliberate effort to create a link farm on potentially disposable hosting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
Heuristics 5
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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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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://kenkochaya.com/user_data/ckfinder/files/pupupa.pdf In PDF document text
- http://samtekelektrik.com/files/19038406023.pdfIn PDF document text
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1612fdfd44c3e4---24208133781.pdfIn PDF document text
- http://fibertechnique.com/tmp/file/wifogisila.pdfIn PDF document text
- http://boldogelet.hu/media/lesaker.pdfIn PDF document text
- http://gaudi.tw/upload/files/63992017850.pdfIn PDF document text
- https://sunnyrosesschool.com/userfiles/file/kekadajimatoxig.pdfIn PDF document text
- http://zensushidanapoint.com/uploads/files/62842242965.pdfIn PDF document text
- http://ateliergermain.org/sites/default/files/file/vofemomomupukibojuwolon.pdfIn PDF document text
- http://smeeing.com/userfiles/files/ligufitedobilekixezumosa.pdfIn PDF document text
- http://russia-ex.com/images/blog/file/52823392445.pdfIn PDF document text
- http://hotelbellevuepalermo.com/userfiles/files/65908111685.pdfIn PDF document text
- https://artbynela.com/uploads/file/26569362988.pdfIn PDF document text
- https://swift-tw.com/lcc/upload/files/95773183494.pdfIn PDF document text
- http://bzws.zhanyougame.com/ckfinder/userfiles/files/ranitojivodofupa.pdfIn PDF document text
- http://avtokapriz42.ru/userfiles/file/92726005205.pdfIn PDF document text
- https://vishalahospitality.com/ckfinder/userfiles/files/78716417908.pdfIn PDF document text
- http://xedaptap.net/userfiles/file/pijapi.pdfIn PDF document text
- http://irpuyesh.com/cache/fck_files/file/solakaxe.pdfIn PDF document text
- http://amsuatrust.org/survey/userfiles/files/51011718675.pdfIn PDF document text
- https://www.milestonesmn.org/ckfinder/userfiles/files/gupatamowod.pdfIn PDF document text
- https://thaibamboorestaurant.ca/phpsites/bard_ford/uploads/file/saveram.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=watch+old+classic+movies+online+freePDF link annotation
- 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_off0000f21c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF21C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010a2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A2E | 17520 bytes |
SHA-256: 841bcccd940382b30bbc92495a1f29074871f26e128067659a312acf97781cfd |
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font_02_sfnt_off00013738.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13738 | 10800 bytes |
SHA-256: b8a1226afad7b89b1ebdae6a4af593a9da3590870e2edf1319209f4ee12b51b5 |
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