MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to disposable domains and are structured as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for initiating malicious actions within PDF documents.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://nayyaralidada.net/alpha/ckfinder/userfiles/files/80559844144.pdf In PDF document text
- https://ppkh.net/userfiles/file/89026160160.pdfIn PDF document text
- http://shijijiaming.cn/filespath/files/20210904200911.pdfIn PDF document text
- https://ckeditor.pamlskovnik.cz/ckfinder/userfiles/files/tizajekalizazoduxapu.pdfIn PDF document text
- http://satthachkhe.vn/image/file/66083446481.pdfIn PDF document text
- http://infinijewelry.com/userfiles/file/nevimiwemewakepi.pdfIn PDF document text
- http://elektromig.pl/userfiles/file/fuduxepata.pdfIn PDF document text
- http://www.tiendadelbordado.com/ckfinder/userfiles/files/giruzokufifewonul.pdfIn PDF document text
- http://langmoon.jp/js/upload/files/nilojokutetagarov.pdfIn PDF document text
- http://maxbrio.kr/files/files/48648129531.pdfIn PDF document text
- https://abhrian.com/userfiles/files/82721412417.pdfIn PDF document text
- https://gospel-streams.com/asset/ckfinder/userfiles/files/xitodu.pdfIn PDF document text
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/3e0cuf2lttr886dpcndl83vco2/87655445125.pdfIn PDF document text
- http://momsystem.ru/public/file/puzepenizer.pdfIn PDF document text
- https://rubfila.in/files/file/wolekakadib.pdfIn PDF document text
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1614111bb9c995---57413080462.pdfIn PDF document text
- https://eghamatkade.com/basefile/eghamatkadecom/files/28524199832.pdfIn PDF document text
- http://hferrynetworks.com/FileData/ckfinder/files/20210914_C6FC9B89A7F20892.pdfIn PDF document text
- http://firewheels.pe/userfiles/file/veviponazusuj.pdfIn PDF document text
- https://htcpost.vn/vietpost.vn/img_content/file/46296176466.pdfIn PDF document text
- http://chieusangducphat.com/uploads/userfiles/file/2290345478.pdfIn PDF document text
- http://autosoftware.company/autoresponders_images/files/soseronujolabumudavol.pdfIn PDF document text
- http://fqcycpa.com/jingkelun/userfiles/files/20210913020745.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=pixel+4a+icons+at+top+of+screenPDF 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_off0000d1a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1A7 | 17432 bytes |
SHA-256: 4cd17851a65753f976799bab3338b45b23a3419ba6621bd97f29f578125cfaa4 |
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font_01_sfnt_off0000ff11.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF11 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011728.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11728 | 10652 bytes |
SHA-256: 57a3a6a3452d29e21697e748e29a57c1dbb7e54f3d656709c0f72b61b4fb88d9 |
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