MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, several of which point to compromised CMS uploads or disposable hosting, indicating a malicious intent to redirect users. The ClamAV detection and ML classifier further support its malicious nature, classifying it as a phishing trojan. The embedded JavaScript is likely used to facilitate the redirection or download of further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
Heuristics 7
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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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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://hzdsbg.cn/uploadfile/1628844539.pdf In PDF document text
- https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161183b7ec3dc2---17461203863.pdfIn PDF document text
- http://capital96.com/userfiles/file/godadagaro.pdfIn PDF document text
- http://almar-bus.pl/userfiles/file/19412111176.pdfIn PDF document text
- https://tahubunting1.com/contents//files/wiwaviteluwi.pdfIn PDF document text
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608c3d61a3fd1---janoturigamusizivuroxozo.pdfIn PDF document text
- https://cor.org.ar/wp-content/plugins/super-forms/uploads/php/files/sb547n3b3qfjjvhqn14psu2ib5/pupuxuxivepika.pdfIn PDF document text
- http://kapsalonindex.nl/images/uploads/77607907465.pdfIn PDF document text
- https://tecnibat.net/uploads/archivos/tuzobamupumoxasobivi.pdfIn PDF document text
- http://www.deopendeur.org/imgUser/file/75880038808.pdfIn PDF document text
- https://bestcaps99.com/ckfinder/userfiles/files/vivosekorukoxuruxux.pdfIn PDF document text
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/64a8a60bde3a40f99f2e3c9e7089d996/gegokupof.pdfIn PDF document text
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/9b32a4e2b4ae1d7402173f25271ec0ca/teluwiresimasebim.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/ibebmsssjd8rqm1er0k29tcha4/mogizisiradejorevez.pdfIn PDF document text
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/metblcv2sf6s82o4v3pmkhqt2e/sukuw.pdfIn PDF document text
- https://novsport.com/content/File/8891468547.pdfIn PDF document text
- https://diedacorporation.net/freesiafiles/file/1185508017.pdfIn PDF document text
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1608e13748d805---14193529314.pdfIn PDF document text
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/160a9dd8845f9b---66430892505.pdfIn PDF document text
- http://remaining-mc.de/userfiles/file/51943792334.pdfIn PDF document text
- http://dolphinkorea.com/files/files/wubenajeve.pdfIn PDF document text
- http://cardealer-space.com/js/upload/files/10967217330.pdfIn PDF document text
- http://esipro.lu/userfiles/file/61554777937.pdfIn PDF document text
- http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609cf7b5b92a6---66869673526.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=williamson+macroscale+and+microscale+organic+experiments+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_off0000bfd9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFD9 | 11056 bytes |
SHA-256: 1573d76157bf19d61ff1cf34922f43113ce3ed67240d6c0cde222b453707dae8 |
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font_01_sfnt_off0000d963.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD963 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f175.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF175 | 16240 bytes |
SHA-256: 49764d9eb7c441428e1e72b7683bdddddf37e595d4fbbd36a4e3b7d1a79b68a8 |
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