MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code. It also features a large number of external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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 http://crm333.com/documentos/file/zudifizutedok.pdf In PDF document text
- http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160813a8c3fa02---fodexijibalagozewide.pdfIn PDF document text
- https://tidaksusah.com/contents//files/37092955987.pdfIn PDF document text
- http://ahoba85.com/clients/2/26/26d353b61ac95a99d7df5001a3d58300/File/21781330288.pdfIn PDF document text
- http://nguyenthaotech.com/upload/files/javebegunevenetabozolot.pdfIn PDF document text
- http://kristenpell.com/userfiles/files/36065863115.pdfIn PDF document text
- https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab032b90439---92281188984.pdfIn PDF document text
- http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609c8ee141f3c---dukabakimeviziliga.pdfIn PDF document text
- https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/3fe39b1b2e4aff363ae9c5acc30eb630/48691694031.pdfIn PDF document text
- https://oliogalanis.com/file/21251464134.pdfIn PDF document text
- https://anup.bo/images/files/85362017112.pdfIn PDF document text
- http://kompletucetnictvi.cz/files/file/gawonuritux.pdfIn PDF document text
- http://tantos.jp/js/upload/files/41719284777.pdfIn PDF document text
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/15fa415f55e665af9b8756ab4ac2c4e2/zinasekeruxagetosidog.pdfIn PDF document text
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/8jdem90rphbah1qepegei4if5q/vipegixubusijewoseju.pdfIn PDF document text
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/96d693c1cc2bee57587662762652b2c6/rifegepujujulob.pdfIn PDF document text
- https://www.plsok.com/wp-content/plugins/super-forms/uploads/php/files/7007e413785d454632a7dd55d689a8c4/nazatov.pdfIn PDF document text
- https://vetranhtuongmamnon.vn/wp-content/plugins/super-forms/uploads/php/files/jq7u7h41ren8ulrvo12filthbq/12513651323.pdfIn PDF document text
- https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/l8d647j6o3hr4002o5cp5etf5v/99749270660.pdfIn PDF document text
- http://archimax.ch/dynamic-images/cms/file/wuxirobig.pdfIn PDF document text
- http://gistfamilyreunion.com/clients/8/8c/8cbf0a40baaab9dd4734ff2cdbb1e120/File/piloxiluvozodik.pdfIn PDF document text
- http://hasici-pristroje-eshop.cz/files/file/32919488775.pdfIn PDF document text
- http://maidnheaven.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080af2bdf9fb---85252710613.pdfIn PDF document text
- https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/13cbbc19ff5a4078c806cabdd00e899c/nuxilaxitefekuxitisesu.pdfIn PDF document text
- https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/e547b1b2c4382f8aac540b084d420614/47354947743.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=what+are+the+advantages+of+non+renewable+energy+technologies+for+generating+electricityPDF 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_off0000efe1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFE1 | 11152 bytes |
SHA-256: db560bd5f69f68f6f7e0a66586b8f77e50b61f35447d8ade23c452a923344c7b |
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font_01_sfnt_off000109c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109C3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000121d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121D5 | 17520 bytes |
SHA-256: 42bc6ee7f1a8d8b614d3df864ef31cdf197172df6ce56e9e10a0a7413a980039 |
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