MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which are hosted on disposable domains, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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 https://www.colegiodomus.com.br/js/ckfinder/userfiles/files/34597440461.pdf In PDF document text
- https://taxfirma.com/userfiles/file/96717829520.pdfIn PDF document text
- http://mtjjt.com/2013/upload/article/files/210921085223675444d3zp8.pdfIn PDF document text
- http://klick-tipp.info/ckfinder/userfiles/publics/files/daveredisirupatad.pdfIn PDF document text
- https://euronet.stonavka.cz/webpagebuilder/ckfinder/userfiles/files/92267331189.pdfIn PDF document text
- http://renknh.com/ckupload/files/gakasata.pdfIn PDF document text
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/161342cdc3446d---bovuxa.pdfIn PDF document text
- http://baovecongtruong.com/upload/files/modamofejuz.pdfIn PDF document text
- http://apartamentykunickiego.pl/architekci/public/upload/ckfinder/userfiles/files/nuwikebivudokag.pdfIn PDF document text
- https://www.nitdgp.ac.in/uploads/userfiles/files/69612314399.pdfIn PDF document text
- http://bergepkolcsonzo.hu/userfiles/file/jutuduvadi.pdfIn PDF document text
- https://magyar-logyogyasz.hu/fileok/file/zuxemuzesok.pdfIn PDF document text
- http://hurtmar.pl/Upload/file/gupudufudinotirew.pdfIn PDF document text
- http://karpatskiles.ru/store/file/61436667321.pdfIn PDF document text
- https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/d11cb7063b01013e1ae623da81f17674/42914617092.pdfIn PDF document text
- https://suacuachuyennghiep.com/uploads/files/4821148598.pdfIn PDF document text
- http://ineke-ott.nl/keramiek-beelden-imagesfile/vaturiwudigaw.pdfIn PDF document text
- http://ledspectrumthai.com/ckfinder/userfiles/files/fidoberekajavolepikozot.pdfIn PDF document text
- https://corianderedmonton.com/ckfinder/userfiles/files/nibekuriguxekoxujes.pdfIn PDF document text
- http://architettosirocco.it/userfiles/files/tuvikudolodupexax.pdfIn PDF document text
- https://dichocungtoi.com/userfiles/file/sozepekuwewosipa.pdfIn PDF document text
- http://peggylittlelawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/19680153757.pdfIn PDF document text
- http://erex.hu/upload/file/jutazurirevofijuzoporux.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+delete+bookmarks+on+chrome+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_off0000d971.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD971 | 10944 bytes |
SHA-256: 9cfbd49e296e71917bcd98840f1a1fdfb2c84a477aacfdd63e94ba91c314b976 |
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font_01_sfnt_off0000f294.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF294 | 17328 bytes |
SHA-256: eb520848a9e076401968694921286445446b6c3f61d4f7d1c16e43288aa5de70 |
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font_02_sfnt_off00011f86.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F86 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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