MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file contains numerous links to external resources, many of which are hosted on compromised CMS upload storage, suggesting a link farm or redirection strategy. The presence of a 'download button' heuristic further supports the idea that the document is designed to trick users into downloading further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9837
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://chcial.ru/uplcv?utm_term=vidmate+app+original+2021
- https://elger.cz/fckphotos/file/6257103693.pdf
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/cf75a92e32d48f0359cd7d6cfa8327a4/83067227760.pdf
- http://langeline.com/ckeditor/upload/files/pemagegugejojive.pdf
- http://werkschoenenverkoop.nl/images/docman/files/xovinokukipaposamewew.pdf
- https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/0adf780345721a6bf598985290518a23/69027426363.pdf
- http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613380ae328aa---31014112967.pdf
- https://mimpidia.com/contents/files/fevanezivupek.pdf
- https://hotnews.md/upload/userfiles/files/76072279320.pdf
- http://gardena.crazyrockinsushi.com/uploads/files/wesuvurisejepoluximino.pdf
- http://www.videobezopasnost.ru/ckfinder/userfiles/files/84951263677.pdf
- http://shethof.ch/cgi-bin/dynamisch/file/zudarisigituduke.pdf
- http://leaguengn.com/userfiles/file///xozix.pdf
- http://sungwoo-n.com/userfiles/file/77844300411.pdf
- http://rezidencianestor.sk/app/webroot/files/ckeditor/files/51848212660.pdf
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/161472c934d909---gaxosenezi.pdf
- https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/beb8c372a4558d2e9b9aac0bfdefdccb/43825107536.pdf
- http://ongxoanhdpe.vn/upload/files/maduwusapuxixi.pdf
- http://orikon.net/Images_upload/files/pomewetogijafaw.pdf
- https://tp-pos.com/uploads/image/files/71507231496.pdf
- http://delve-cr.com/uploads/jajupasugexapafinijatasob.pdf
- http://www.jfac.kr/ckfinder/userfiles/files/95049777965.pdf
- http://turnwealthy.com/ckfinder/userfiles/files/53779423991.pdf
- http://dyglas.com/userData/board/file/33248379432.pdf
- https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/5ba7d3dce104d09e6f93957f3092a7d1/zedafipoxipa.pdf
- http://sozopolihills.com/userfiles/file/gobawaji.pdf
- http://ombs.ru/uploads/files/parop.pdf
- https://eastmanllc.net/ckfinder/userfiles/files/zusowe.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b4d1.bin537e725b417dc2e051452b39e62d16706b2658a0b28d4f9c8ff7cbb28c351568 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4D1 | 15232 bytes |
font_01_sfnt_off0000dbcb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBCB | 16792 bytes |
font_02_sfnt_off0000f3e2.bin5d2246fff5ee8331c2b095529faa18cabf6da864f8c3f9ec72c74eb25b7cab4f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3E2 | 10832 bytes |
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