MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for exploiting vulnerabilities or delivering malicious content. The presence of numerous external links, many pointing to PDFs on potentially disposable domains, suggests a link farm or phishing attempt. ClamAV detection and ML classification strongly indicate malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://uk-finansist.ru/userfiles/file/wavunapivuz.pdf In PDF document text
- http://newbusan.net/FileData/ckfinder/files/20210910_E297AC929CEACC90.pdfIn PDF document text
- http://mediasingrid.com/js/new/fckeditor/userfiles/file/jelewedarujifoborani.pdfIn PDF document text
- http://massarentearchitettura.com/userfiles/files/punigawof.pdfIn PDF document text
- https://cet.sk/res/file/gifipajurixolov.pdfIn PDF document text
- http://tornyanggrace.com/upload/file/likovix.pdfIn PDF document text
- https://genia-groupe.fr/images/files/40936234076.pdfIn PDF document text
- http://www.ondebiz.com/userfiles/file/95709332861.pdfIn PDF document text
- https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/161478603eb712---20247654009.pdfIn PDF document text
- http://kapelski.pl/userfiles/file/51421786769.pdfIn PDF document text
- https://uclerbaklava.com/resources/file/mateganazas.pdfIn PDF document text
- http://seattledesis.com/fckeditor/file/19201696356.pdfIn PDF document text
- https://laatuwhuisweerstralen.nl/upload/file/dozafugujaraze.pdfIn PDF document text
- https://cplastik.cz/data/cms/file/92713944551.pdfIn PDF document text
- http://yokosohk.com/files/fckfiles/file/derozisifivesovulig.pdfIn PDF document text
- http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613474f55ca9a---fosajinifafomevomenu.pdfIn PDF document text
- http://www.salpasafarit.fi/tiedostot/files/narotadoduko.pdfIn PDF document text
- http://hexindechem.com/upload/files/81771134151.pdfIn PDF document text
- http://divyabodhanam.org/userfiles/file/vusuzuzagusenerofigum.pdfIn PDF document text
- https://jogamiskolc.hu/ckfinder/userfiles/files/53669056413.pdfIn PDF document text
- https://joinvita.com/neu/userfiles/file/vugad.pdfIn PDF document text
- http://bronnicy.inhome360.ru/admin/ckfinder/userfiles/files/20552035011.pdfIn PDF document text
- https://eqonetech.com/upload/userfiles/files/17177892463.pdfIn PDF document text
- http://slhospital.com/upload/fckeditor/file/pexugogexemakizudomelad.pdfIn PDF document text
- http://prochem.vn/images/uploads/files/xisidubugalas.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=firestick+cinema+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_off0000b164.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB164 | 16976 bytes |
SHA-256: 4f600503272b629bf2849ab82542f7b91c8f2dcc9473d41351b33baa013ade8b |
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font_01_sfnt_off0000dd1b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD1B | 10440 bytes |
SHA-256: 94c2e78147e6532d13a660323e3849c161da529a23ac6033de8c310819a39b3e |
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font_02_sfnt_off0000f4ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4CA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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