MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The sample is a PDF document containing embedded JavaScript, which is a common technique for executing malicious code. It also contains numerous external links, with one heuristic specifically identifying it as a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving the exploitation of PDF vulnerabilities to deliver a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 7
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://sportsslife.net/upload/ckfinder/files/28562702494.pdf In PDF document text
- http://fk-fudosan.1nino3.com/app/webroot/img/userfiles/files/42006322776.pdfIn PDF document text
- http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613958fe880bc---safat.pdfIn PDF document text
- http://idevicesplus.nl/app/webroot/files/userfiles/files/42630309295.pdfIn PDF document text
- http://ekorepetycje.eu/Upload/file/pixagixugotim.pdfIn PDF document text
- http://www.julietlandau.com/fckeditor/userfiles/file/3504536320.pdfIn PDF document text
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133c06f595ea---wofizovulotofulul.pdfIn PDF document text
- http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/2895745564.pdfIn PDF document text
- https://wwa.bdbabymart.com/app/webroot/ckfinder/userfiles/files/58701247324.pdfIn PDF document text
- https://hosrem.org.vn/ckfinder/userfiles/files/vuvumabuw.pdfIn PDF document text
- https://dacola.com/upload/files/34449037937.pdfIn PDF document text
- https://plantbiochem.com/ckfinder/userfiles/files/89506989750.pdfIn PDF document text
- https://www.tulsarad.com/my_content/js/ckfinder/userfiles/files/438689670.pdfIn PDF document text
- https://northwestconvention.cz/data/files/sorebo.pdfIn PDF document text
- https://nhahangthanghuong.com/uploads/files/puravekefepap.pdfIn PDF document text
- http://1544-7419.net/upload/fckeditor/file/8182025175.pdfIn PDF document text
- https://bulendengin.com/upload/ckfinder/files/33459045425.pdfIn PDF document text
- https://olboihorgaszto.hu/editor_up2/40536494771.pdfIn PDF document text
- https://andymullinscommercial.com/home/andy/public_html/ckfinder/userfiles/files/31972207948.pdfIn PDF document text
- https://actor-conseil.com/files/file/71202125178.pdfIn PDF document text
- https://zenit-npk.ru/files/file/89395759161.pdfIn PDF document text
- https://tagoproperties.com/ckfinder/userfiles/files/47358918268.pdfIn PDF document text
- http://haohanlegend.com/Uploadfiles/files/kadime.pdfIn PDF document text
- https://bliznacite.com/files/84289455627.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=roblox+esp+hackPDF 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_off0000c78b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC78B | 19060 bytes |
SHA-256: 489bcb6c717ea5731035de47648759da1eabf78048d84ce3beda03a0f3ecff94 |
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font_01_sfnt_off0000f8d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8D2 | 10456 bytes |
SHA-256: faa55b2d78785e72f750257eb98c76b590d71af6e1fd843d08810944df85ec21 |
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font_02_sfnt_off0001108e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1108E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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