MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The ML classifier and ClamAV detection strongly indicate maliciousness. The PDF contains numerous links to external websites, many hosted on compromised CMS platforms or disposable domains, suggesting a phishing or malware distribution scheme. The presence of embedded URLs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic point towards an attempt to direct users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 https://huntic.ru/uplcv?utm_term=android+get+image+from+gallery PDF link annotation
- https://itchanoi.vn/uploads/news_file/77913148062.pdfIn PDF document text
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/9ab9e03e8cd6a5b8b7f67d7d3e8b4345/77974688101.pdfIn PDF document text
- http://sp2wronki.pl/fotki/fotki/file/dajuledupegabovuto.pdfIn PDF document text
- http://blfimmobiliare.com/userfiles/files/20083385725.pdfIn PDF document text
- http://midoriku.zaitakunet.jp/app/webroot/upload_images/files/15906123930.pdfIn PDF document text
- http://jyotiacademicpress.org/uploads/file/voduxuser.pdfIn PDF document text
- http://abwclayton.com/uploads/files/boruzaxavepulapa.pdfIn PDF document text
- http://abpjse.news-read.com/upload/files/25467506614.pdfIn PDF document text
- http://przedszkolenisko.pl/userfiles/file/5965462296.pdfIn PDF document text
- http://citygclub.com/ckupload/files/gobirafokupi.pdfIn PDF document text
- https://vanrun-it.nl/userfiles/files/23601529607.pdfIn PDF document text
- https://cottingham-group.com/cufiles/files/71257079967.pdfIn PDF document text
- http://iehyun.com/editorupload/file/46855995100.pdfIn PDF document text
- http://www.sandipmallick.com/fckimages/file/ximelolalawopagojidaja.pdfIn PDF document text
- https://ever.dacola.com/upload/files/legobudikalijezi.pdfIn PDF document text
- http://0vote.com/ckfinder/files/kujajutog.pdfIn PDF document text
- http://brno-skoleni.cz/ckfinder/userfiles/files/77678477665.pdfIn PDF document text
- http://belean.pl/userfiles/file/vupow.pdfIn PDF document text
- http://thermcom.cz/userfiles/file/feburuxadojaxami.pdfIn PDF document text
- https://enilubricantvn.hoakhanh.vn/uploads/image/files/35879740189.pdfIn PDF document text
- http://liweisteel.co.th/ckfinder/userfiles/files/vanegijafobutez.pdfIn PDF document text
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a72bc9e424---54428800319.pdfIn PDF document text
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/a9l6mdu39imatftpfb17akgf6f/lebapawa.pdfIn PDF document text
- http://www.ondebiz.com/userfiles/file/loguwijoxitewojidi.pdfIn PDF document text
- http://ebd.su/UFD/7623/files/17944461838.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_off0000bd12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD12 | 17400 bytes |
SHA-256: 97444c03c1f509fb2c92692a2b0b81074106f8f34d305aed3149e4edb0c25f0e |
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font_01_sfnt_off0000eb09.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB09 | 10624 bytes |
SHA-256: f58dbad2ec5d1201d47792d414dd8d7441d85095d78a7b15072e240526cc85f4 |
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font_02_sfnt_off00010322.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10322 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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