MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs that form a link farm, directing users to potentially compromised or disposable hosting sites. The presence of these links suggests a phishing or redirection attack, aiming to lead users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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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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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://infrive.ru/uplcv?utm_term=word+convert+table+to+text PDF link annotation
- http://mitchelllawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/64859000281.pdfIn PDF document text
- http://vasekurzy.cz/userfiles/file/67093766794.pdfIn PDF document text
- http://synfarm.com/upload/files/68468722421.pdfIn PDF document text
- https://khonggiansangtao.com/platformecom/img/upload/file/3386784782.pdfIn PDF document text
- http://studioscoponi.eu/userfiles/files/14914238269.pdfIn PDF document text
- http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/5b06b074f3ed7f25b0b6987471ea7a94/fubizurepatelesabewo.pdfIn PDF document text
- https://pratham.one/file/lirefevir.pdfIn PDF document text
- http://keifo.ru/ckfinder/userfiles/files/misure.pdfIn PDF document text
- http://studiorestagno.eu/userfiles/files/jeredulu.pdfIn PDF document text
- https://girisimhaber.com/uploads/file/28906642784.pdfIn PDF document text
- http://superazs.ru/images/news/file/89694870839.pdfIn PDF document text
- https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/3b9f51fbe0af16aed32da7c93fb0279b/86556513080.pdfIn PDF document text
- http://suvenirzp.com/uploads/files/20167260352.pdfIn PDF document text
- http://ymjgolf.com/file_media/file_image/file/27536155682.pdfIn PDF document text
- http://sporteambiente.it/ckfinder/userfiles/files/80423661828.pdfIn PDF document text
- http://jiachuankeji.com/upload_fck/file/2021-10-6/20211006212104873975.pdfIn PDF document text
- http://zussobrance.sk/grafika/dokumenty/zesasujelawatosavabanup.pdfIn PDF document text
- http://nenorm.com/files/files/34141587494.pdfIn PDF document text
- http://dulichtantai.com/files/uploaded/files/jojupozokipumi.pdfIn PDF document text
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1614b2ec2c5ac7---13008146196.pdfIn PDF document text
- http://novafish.it/userfiles/files/pojamegekofonofuranot.pdfIn PDF document text
- https://dienmayngalinh.com/img/files/43952992574.pdfIn PDF document text
- https://santevita-bg.com/ckfinder/userfiles/files/78553319080.pdfIn PDF document text
- http://mtsp.by/userfiles/files/19079108954.pdfIn PDF document text
- https://elger.cz/fckphotos/file/jezimodak.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_off0000d414.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD414 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ec2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC2B | 10404 bytes |
SHA-256: b8747ea1c8fa3f5f30abdb5dade78a4560c1eb395767bd1ea632fbe8abc9a949 |
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font_02_sfnt_off000103e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103E4 | 16312 bytes |
SHA-256: feaf3bd4dc428f981bbd6a8fb5af0547a13b935aceee97c020a18e4aa9a69726 |
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