MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript, which is a common technique for executing malicious code. It also features numerous links to external URLs, with one specifically flagged as an algorithmically-generated URL hosted on disposable infrastructure, suggesting a phishing or malware distribution attempt. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 https://easresidence.ro/app/webroot/files/userfiles/files/ripozadijo.pdf In PDF document text
- https://spvi.cn/filespath/files/20210915215236.pdfIn PDF document text
- http://cross-winds.in/upload/contents/images/images/varidetigetetavufawo.pdfIn PDF document text
- http://transbur.ru/admin/ckfinder/userfiles/files/88968277166.pdfIn PDF document text
- https://horacebatten.com/ckfinder/userfiles/files/77365121791.pdfIn PDF document text
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1612e9f024e5a3---75714260071.pdfIn PDF document text
- http://ngocphuocjsc.com/public/default/ckeditor/files/11596908979.pdfIn PDF document text
- https://landbar.com/app/webroot/js/ckfinder/core/connector/upload/files/mipumeredomadux.pdfIn PDF document text
- https://brakos.it/file/vupijilopaxipo.pdfIn PDF document text
- https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/161359c67ddaa0---78064372389.pdfIn PDF document text
- https://safetyhanoi.com/userfiles/file/jabagigaxafowu.pdfIn PDF document text
- http://ecme.site/2015/vat/upload/files/fiduro.pdfIn PDF document text
- http://hzxgdz.com/images/upload/File/rejatojiwazase.pdfIn PDF document text
- https://mlbcsimleague.com/ckfinder/userfiles/files/332523810.pdfIn PDF document text
- http://belloverde.net/emailer/file/35173380715.pdfIn PDF document text
- http://silesiacapital.eu/data/file/58478090589.pdfIn PDF document text
- https://episcopiaoradiei.ro/files/19278142458.pdfIn PDF document text
- http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/2895745564.pdfIn PDF document text
- http://mictrogiang.com/userfiles/files/nowuxiz.pdfIn PDF document text
- https://braintreeclinics.com/app/webroot/img/files/xokox.pdfIn PDF document text
- http://budka39.ru/files/nopobofefabido.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=visualization+analysis+and+design+munzner+pdfPDF 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_off0000d34f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD34F | 18912 bytes |
SHA-256: f1746654c911c0173c45b8e640cb42265bbb9b8833c9fde902645ac88880ecbf |
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font_01_sfnt_off0001051b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1051B | 11084 bytes |
SHA-256: fde22f3a5e9cb006e4e8646710453aaa3e9cf1b4b87a1a807f88d83145d97ab4 |
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font_02_sfnt_off00011ecc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11ECC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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