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 are part of a link farm hosted on disposable domains. 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 executing malicious code or redirecting users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613819058310d---lefigurulo.pdf In PDF document text
- http://retrofitoman.com/ckfinder/userfiles/files/nafojajamilusiw.pdfIn PDF document text
- http://jungam21.com/upfiles/file/1630790541.pdfIn PDF document text
- http://sushiloverca.com/uploads/files/vezezoxoperipawelajil.pdfIn PDF document text
- http://www.atccs3.it/atccs3/fckeditor/editor/ckfinder/userfiles/files/segoligegukoko.pdfIn PDF document text
- https://hoanghaie.com/Images_upload/files/pebosomojunowiximur.pdfIn PDF document text
- https://best-label.com/upload/files/57986883932.pdfIn PDF document text
- https://vietnamairlinescorp.org/js/ckfinder/userfiles/files/520015604.pdfIn PDF document text
- http://arcstema.com/userfiles/files/10542650235.pdfIn PDF document text
- http://lokalsport.no/userfiles/file/ravawux.pdfIn PDF document text
- http://jamalcar.com/userfiles/file/73807357551.pdfIn PDF document text
- https://eniedu.com/data/file/20210908021608.pdfIn PDF document text
- http://whuntex.ru/userfiles/file/guranokedubojirugerasuni.pdfIn PDF document text
- https://usssecuritate.ro/userfiles/file/tonekitidoxu.pdfIn PDF document text
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/161370f69c52e5---30475393785.pdfIn PDF document text
- https://snowcat.pl/admin/ckfinder/userfiles/files/vewusozujodimaradunudoru.pdfIn PDF document text
- http://veitali.com/upload/files/tumudojuzod.pdfIn PDF document text
- https://privatecambodiatour.com/userfiles/file/lupug.pdfIn PDF document text
- https://kawanmto.org/contents/files/venewinagoraxudamo.pdfIn PDF document text
- https://srccaa.bdbabymart.com/app/webroot/ckfinder/userfiles/files/jezifaralofetaxepa.pdfIn PDF document text
- http://technology-mp.it/userfiles/files/65313129677.pdfIn PDF document text
- http://ruresept.ru/files/file/36256220854.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=amazon+smile+app+androidPDF 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_off0000da16.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA16 | 17084 bytes |
SHA-256: 93019251a457f3b9b9e4901f856f118aba40884c19d9ed6cedb1eede08e7ab54 |
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font_01_sfnt_off0001063a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1063A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011e51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E51 | 10496 bytes |
SHA-256: 9d36b9c93d7ab0d2288c744fe5c149ee66f2db81647a1f9718cc1d435f934c4e |
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