MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript, a common technique for executing malicious code within PDFs. It also functions as a link farm, directing users to multiple external URLs hosted on disposable or compromised domains. These factors, combined with ML and ClamAV detections, strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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 farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://archism.ru/uplcv?utm_term=como+usar+modem+3g+no+tablet+android PDF link annotation
- http://webmba.fr/client/logo/file/58497175868.pdfIn PDF document text
- http://boxethai38.com/upload/file/varikujimetovirikisunaluz.pdfIn PDF document text
- http://d2dgroup.net/upload/files/wukewul.pdfIn PDF document text
- http://kaizenlife.com/ckfinder/userfiles/files/85529132838.pdfIn PDF document text
- https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/ed094faadaeb34b3eeb4fde59f0f1348/13650452309.pdfIn PDF document text
- https://crcnueva.naturasoftware.com/uploads/images/files/gesimoz.pdfIn PDF document text
- https://imahima.xyz/js/ckfinder/userfiles/files/42842399968.pdfIn PDF document text
- http://shacklefordlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/83470256278.pdfIn PDF document text
- https://elsadaulte.com/ckfinder/userfiles/files/jeruzarusinifamafosinex.pdfIn PDF document text
- http://chinajnbt.com/images/upload/File/74612324737.pdfIn PDF document text
- http://nscenter.cn/upload/files/87149594263.pdfIn PDF document text
- http://edeins.com/userfiles/file/465203866.pdfIn PDF document text
- https://beeshark.ro/app/webroot/files/userfiles/files/jevosopadudexu.pdfIn PDF document text
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615195468d909---69112655561.pdfIn PDF document text
- http://hotspot-usa.com/js/upload/files/85531331781.pdfIn PDF document text
- https://banerjeetourspecial.in/ckfinder/userfiles/files/galanefijusudowajud.pdfIn PDF document text
- https://www.info-service.com.tw/plugin/ckeditor/ckfinder/userfiles/files/judozosasotubopojizolixu.pdfIn PDF document text
- http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/a52eb9db6211fce3e2395089083ad7bb/25316006186.pdfIn PDF document text
- http://zafirkort.com/uploads/files/15111342213.pdfIn PDF document text
- http://aranykoronakft.hu/userfiles/file/kawebedofesi.pdfIn PDF document text
- http://nonstopsushi.com/uploads/files/5950793414.pdfIn PDF document text
- https://bushregenerators.biz/userfiles/files/riboxaxododozonafer.pdfIn PDF document text
- 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_off0000b15a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB15A | 11036 bytes |
SHA-256: 937a55e4756a2e7d82f159062c77e3a8f3cb9b022cdff65296a5a9a2ff14c7a7 |
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font_01_sfnt_off0000cad3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAD3 | 16820 bytes |
SHA-256: 15cea73558423f624dca05d6a3cde5a33424ef38b8ed939de7a1edaac1699577 |
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font_02_sfnt_off0000f5d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5D2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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