MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities or redirecting users. The presence of numerous external URIs, many pointing to potentially disposable domains, suggests a phishing or link-farming campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to lead users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
Heuristics 6
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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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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://artofsurfing.com/preview/ckfinder/userfiles/files/visunurumexigoduwup.pdf In PDF document text
- http://dragoniresorts.com/userfiles/45382304417.pdfIn PDF document text
- https://aprilboya.com/userfiles/file/18651902890.pdfIn PDF document text
- https://www.ccs-corporation.com/ckfinder/userfiles/files/16493630159.pdfIn PDF document text
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16133c0b87a0f4---sakosod.pdfIn PDF document text
- http://another-partner.morefriendship.com/upload/files/68475209195.pdfIn PDF document text
- https://elperrocallejero.info/ckfinder/files/77336732025.pdfIn PDF document text
- http://studiorapizza.it/userfiles/files/vabusuzagitikizozob.pdfIn PDF document text
- https://aquafilling.com/userfiles/file/72277166023.pdfIn PDF document text
- https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16135b05895707---10412614125.pdfIn PDF document text
- http://yer-krasnodar.ru/ckfinder/userfiles/files/vevelojajon.pdfIn PDF document text
- http://mskgroup-spb.ru/upload/file/zikunires.pdfIn PDF document text
- https://liantoong.com/archive/upload/files/gejoxel.pdfIn PDF document text
- http://plusk-car.com/js/upload/files/53791510055.pdfIn PDF document text
- https://ra7a7p-h3ba7.com/contents/files/zanopuzabapawuliwinuj.pdfIn PDF document text
- http://izeninfo.net/admin/upload/files/jamoj.pdfIn PDF document text
- http://bortran.com/upload/image/file/20210904103634.pdfIn PDF document text
- http://xn--krmer-dnnebacke-1kb72b.de/files/file/15180622127.pdfIn PDF document text
- http://solee.cn/ckfinder/userfiles/files/28550353619.pdfIn PDF document text
- http://agriturismoilnoceto.com/userfiles/files/42546823281.pdfIn PDF document text
- https://suthuytinh.com/app/webroot/uploads/files/47744157548.pdfIn PDF document text
- http://gachbinhduong.com/upload/file/46814243950.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=wild+sheep+chase+pdfPDF 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_off0000c7c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7C9 | 10288 bytes |
SHA-256: ee56b35c95a6c5b2e7694eecd8a0d1526318fe3ec0acf37fe3348553392ed5ec |
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font_01_sfnt_off0000df01.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF01 | 17188 bytes |
SHA-256: 08f00f07ca47281d68f7be2780658a0ab104411d3246ed703a3b6bb08f22aab6 |
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font_02_sfnt_off00010b9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B9E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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