MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with many embedded URLs pointing to compromised WordPress sites and disposable domains. The ML_NYX_PDF_MALICIOUS and CLAMAV_DETECTION heuristics strongly suggest malicious intent, likely related to phishing or malware delivery through the numerous external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 6
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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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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://skincarebylaura.com/clients/862251/File/kosulazunebenisi.pdf In PDF document text
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1609e44b24e406---89274884700.pdfIn PDF document text
- https://argumentua.com/i/file/10239935809.pdfIn PDF document text
- https://iasvn.org/Images_upload/files/23290705403.pdfIn PDF document text
- https://waelfawzy.com/userfiles/file/In PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/859c29eaaf0aefac1f51339ad0951887/38321461326.pdfIn PDF document text
- https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/c57acf3b385f415973595afc252e1984/buganizavepejur.pdfIn PDF document text
- http://northmarking.com/userfiles/files/wuwafogafadejijumigufo.pdfIn PDF document text
- http://dgxzz.com/uploadfile/file/fasaroti.pdfIn PDF document text
- http://sonkertrail.org/clients/9/92/9260a3c387aed4615f72c72c3a1da295/File/24812855238.pdfIn PDF document text
- http://opsir.eu/files/file/fawep.pdfIn PDF document text
- https://etadelloro.it/images/file/jejejuk.pdfIn PDF document text
- https://vico-domrep.com/ckfinder/userfiles/files/wurugiganu.pdfIn PDF document text
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612a5dbf7ab4c---88018920589.pdfIn PDF document text
- http://aescantabria.es/upload/fckeditor/file///19307431047.pdfIn PDF document text
- http://appinaris.net/ckfinder/userfiles/publics/files/28405962375.pdfIn PDF document text
- http://bright-inter.com/file_media/file_image/file/21857960249.pdfIn PDF document text
- https://clinicscrm.com/img/files/nowitegeja.pdfIn PDF document text
- http://technoculture.cz/admin/upload/file/70053788008.pdfIn PDF document text
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d886f90b6c---16046233255.pdfIn PDF document text
- http://casier-a-bouteilles.fr/file/panavabebobomefepapif.pdfIn PDF document text
- https://bmat.mn/uploads/ckfinder/files/jenudakijal.pdfIn PDF document text
- http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/1608d908d42c4b---xegogifagekujateg.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=comprehensive+reading+%26+writing+in+english+xii+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_off0000ebde.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBDE | 16552 bytes |
SHA-256: 7a7a4d1c493925a723420123085469fd5ec1c5705ef924fdffb8de1f8dbb4a99 |
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font_01_sfnt_off0001165c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1165C | 10792 bytes |
SHA-256: b2fe74d97fdfcdfe62788948bc631539cdf041a96d0a86933658559a025aae28 |
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font_02_sfnt_off00012ed0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12ED0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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