MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple URLs, many of which are part of a link farm designed to obscure the true destination. The presence of a visual download button and the ML classifier's high confidence score indicate a malicious intent to trick the user into downloading further malware. The ClamAV detection further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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 http://jkbprivateiti.com/userfiles/file/zubegoginupupivozotobezan.pdf In PDF document text
- http://daeryuhealthcare.com/ckupload/files/6187544531.pdfIn PDF document text
- http://dh-cell.com/ckfinder/userfiles/files/91260169464.pdfIn PDF document text
- https://bursac.net/userfiles/file/natogimeziseseli.pdfIn PDF document text
- http://conhantaoankhanh.com/webroot/img/files/lodijij.pdfIn PDF document text
- https://jordan.si/dokumenti/file/6784107596.pdfIn PDF document text
- http://aibasavar.edu.bd/app/webroot/ckfinder/userfiles/files/lapugegukofozupiwodog.pdfIn PDF document text
- http://fujieshubao.com/zk/UploadFile/file/2021090823204673499.pdfIn PDF document text
- http://aeon-dev.com/uploads/files/202109030214188850.pdfIn PDF document text
- http://mtecommerce.it/public/news/file/14309037285.pdfIn PDF document text
- http://vanhacollection.com/images/files/39266205066.pdfIn PDF document text
- http://neodentpetrosino.it/userfiles/files/tazegixigitugufogalo.pdfIn PDF document text
- https://extremedriveline.com/ckfinder/userfiles/files/999765280.pdfIn PDF document text
- http://natalieshuff.com/uploads/file/46200276256.pdfIn PDF document text
- http://khangvietdn.com/uploads/file/velamebovisoxuviwupanavo.pdfIn PDF document text
- http://gameadvisers.com/js/new/fckeditor/userfiles/file/jemozenaxovovopa.pdfIn PDF document text
- https://ermolino.mebel18.com/uploads/files/14658912286.pdfIn PDF document text
- http://adamlegal.com/userfiles/file/powobez.pdfIn PDF document text
- http://herve-coiffure.ci/files/sexota.pdfIn PDF document text
- http://hoteldanang.com/uploads/images/files/55510473716.pdfIn PDF document text
- https://drlalashow.com/php/billboard/uploads/file/79725980812.pdfIn PDF document text
- https://ecoquimica.cl/dinamicos/uploads/file/nadiderovunujebijer.pdfIn PDF document text
- http://modernplating.com/userfiles/file/80348753235.pdfIn PDF document text
- http://digjamaica.com/app/webroot/files/jilejagikizif.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=fundamentals+of+fluid+mechanics+5th+edition+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_off0000e29f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE29F | 10996 bytes |
SHA-256: 330f3ab7347a2efd88255d88b828323eec3ace5c543694394d2f5db1ccbe23a8 |
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font_01_sfnt_off0000fbfe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBFE | 16924 bytes |
SHA-256: 6adfb5d347f987bb70762050f722e0c9cb3351b6ad8444cf88466c9dfc19ce9c |
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font_02_sfnt_off0001276a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1276A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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