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. Additionally, the document hosts a link farm pointing to compromised WordPress sites, suggesting an attempt to distribute further malware or conduct phishing. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/239384ffa874cfce1712c8094aed125f/lutiwur.pdf In PDF document text
- http://acrclubinversores.com/files/galeria/files/54054770644.pdfIn PDF document text
- http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/16143de05b3aef---padiponizazuxukakezuj.pdfIn PDF document text
- https://birutelorasin.com/contents/files/1115706763.pdfIn PDF document text
- http://jungvassar.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/82087786443.pdfIn PDF document text
- https://hsdinstruments.nl/uploads/files/8384596049.pdfIn PDF document text
- https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/6272ecce5f04e4f7dd8bab80176a0d76/49187001100.pdfIn PDF document text
- https://kottayammedicalcollege.org/CMS/ckfinder/userfiles/files/zapegoki.pdfIn PDF document text
- http://www.sainteuphrasia.com/www/js/ckfinder/userfiles/files/19815021306.pdfIn PDF document text
- http://dragonera.cn/admin/userfiles/file/misetajad.pdfIn PDF document text
- http://sendedianqi.com/upload_fck/file/2021-9-21/20210921075757222508.pdfIn PDF document text
- http://meta-min.com/files/begima.pdfIn PDF document text
- http://forestheightsgarden.com/ckupload/files/3256001657.pdfIn PDF document text
- https://ibexquimica.com.br/ckfinder/userfiles/files/55176994662.pdfIn PDF document text
- http://acupunctuuryao.nl/ckfinder/userfiles/files/61482724388.pdfIn PDF document text
- http://poddertradingandindustries.com/userfiles/file/51785969408.pdfIn PDF document text
- http://sooam.com/files/fckeditor/file/213727121961386e1403943.pdfIn PDF document text
- http://ecohouse-lab.com/userfiles/file/86150149196.pdfIn PDF document text
- http://indexone.ru/upload/file/19625874815.pdfIn PDF document text
- http://cutskytools.com/d/files/towuje.pdfIn PDF document text
- http://lmnn.ru/userfiles/file/32004282430.pdfIn PDF document text
- http://www.texaco.bargiel.com.pl/ckfinder/userfiles/files/koripizanofadofef.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=don+king+kong+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_off0000b3f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3F0 | 9976 bytes |
SHA-256: efdcc85cd5a97d80b2287d5b26b800589b3677077214c8143797fccb9a28006b |
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font_01_sfnt_off0000ca1b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA1B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e22d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE22D | 17436 bytes |
SHA-256: a386a64b72a913a214a4d76ebb855a081b1e7c7eec42f2f7b0c8be830d41204c |
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