MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many of which point to disposable domains and are presented as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to phishing sites or download further malware. The embedded JavaScript is a common technique for exploiting PDF vulnerabilities or initiating malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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 http://hanhthien.net/uploads/file/72197641297.pdf In PDF document text
- http://phongkhamthienhoa.vn/images/files/vekewitom.pdfIn PDF document text
- http://ahnil.com/userData/board/file/najoz.pdfIn PDF document text
- https://proektasis.gr/admin/spaw2/uploads/files/40554833182.pdfIn PDF document text
- http://yourtruck.be/upload/ckeditor/file/24290932530.pdfIn PDF document text
- https://twinslock.com/ckfinder/userfiles/files/bekewefapetenanobud.pdfIn PDF document text
- http://mediasingrid.com/js/new/fckeditor/userfiles/file/15911891778.pdfIn PDF document text
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/daafe2fbba07f23e8c9edb808ced4e36/mozenetow.pdfIn PDF document text
- http://thietbimaugiao.vn/Images_upload/files/59288989855.pdfIn PDF document text
- http://khaskhaan.mn/uploads/userfiles/files/5193659831.pdfIn PDF document text
- http://www.s-prom.si/fileupload/file/1829479157.pdfIn PDF document text
- https://resttour.com/images/userfiles/files/91893900821.pdfIn PDF document text
- http://soc-in.com/data/media/files/dekonupovofegipigow.pdfIn PDF document text
- http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614a12a480638---vaxeluwojetujiteme.pdfIn PDF document text
- http://sibaco.ru/ckfinder/userfiles/files/magop.pdfIn PDF document text
- http://studiopol.it/userfiles/files/63342453858.pdfIn PDF document text
- http://blackivy.pl/userfiles/file/kakoxekuluvefuvojo.pdfIn PDF document text
- http://studiomedicoveterinariobellucci.eu/userfiles/files/segibitalixowelozano.pdfIn PDF document text
- http://ty-universe.com/image/files/20210907_060416.pdfIn PDF document text
- http://knauto.com/upload/file///zegomepadenazipix.pdfIn PDF document text
- http://mega-gold.com/userfiles/files/72541122436.pdfIn PDF document text
- http://www.hausbaumesse.at/ckfinder/userfiles/files/57777861075.pdfIn PDF document text
- http://www.ville-civaux.fr/admin/js/ckfinder/userfiles/files/25217058179.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=syphon+filter+apkPDF 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_off0000fd1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD1D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011534.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11534 | 10568 bytes |
SHA-256: 9db564c2c664148d3af6ebfaea91dbfaea35584db708f8b9ef5bba8ec130964e |
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font_02_sfnt_off00012d46.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D46 | 19008 bytes |
SHA-256: 64ef629a66e0c7e6ee97f90907d000e004fad46fa2df6f1f9d0e56b8a47b40f2 |
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