MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to external sites, some of which are hosted on compromised WordPress installations. The PDF structure suggests it functions as a link farm, likely intended to redirect users to phishing pages or download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://cructi.ru/uplcv?utm_term=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BC%D0%BE%D0%B4%D1%8B+%D0%BD%D0%B0+%D1%81%D1%82%D0%B0%D0%BB%D0%BA%D0%B5%D1%80+%D0%B7%D0%BE%D0%B2+%D0%BF%D1%80%D0%B8%D0%BF%D1%8F%D1%82%D0%B8+%D0%BD%D0%B0+%D0%BC%D0%B0%D1%88%D0%B8%D0%BD%D1%8B
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160dfb1527e9c3---70244971550.pdf
- https://sport-jicin.cz/dokumenty/2970300204.pdf
- https://harrisitalia.it/uploads/file/gakibewawelanenebokinuwiw.pdf
- http://rkmaster.ru/uploads/files/sipidunadukaxag.pdf
- http://czdashan.cn/uploadfile/file/2021043004091373499.pdf
- http://nano-vip.com/ckfinder/userfiles/files/44642675549.pdf
- http://biancoacolori.it/userfiles/files/duravisot.pdf
- http://contentworks.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160d651fdb93bd---90362467848.pdf
- https://balajitutorial.com/admin/userfiles/file/birojus.pdf
- https://inncredel.com/uploads/mefujosadujane.pdf
- http://adabaskimerkezi.com/upload/file/71077409621.pdf
- http://bkdesign.ee/userfiles/file/5316707489.pdf
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096749b45cd9---wawavivekoviremuvawuj.pdf
- https://weeb.nu/userfiles/file/23103016778.pdf
- http://artospace.com/pics/file/vutezisexux.pdf
- https://salvamontbihor.ro/app/webroot/files/userfiles/files/37202309832.pdf
- http://abwalabamaave.com/uploads/files/wavonol.pdf
- https://i3mit.com/shopadmin/upload/files/91298704985.pdf
- http://robertfeinberglaw.com/images/edit_images/file/68053718022.pdf
- https://bitree.ru/ckfinder/userfiles/files/tilidigupedarepuxuvis.pdf
- http://ekvatorbl.com/userfiles/file/xojipibizomil.pdf
- https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/3d8ec8ad36d5fb96b4ba44decdd18b6d/57794846130.pdf
- https://www.ideaklinik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f73df73e0d---72061461917.pdf
- https://anandamsanyal.com/userfiles/file/dofiveresaxezujetovaba.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_off000137a1.bin6b90c5340fcb77ab6b8fcd2cbb05e84bebf6833c73645186b9abe706c8394d2a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137A1 | 11336 bytes |
font_01_sfnt_off000151d6.bine5f1ec780dc52124a770afdcf32779c3c23105beffadb1b96795463925ed8322 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x151D6 | 24744 bytes |
font_02_sfnt_off00018f88.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18F88 | 16792 bytes |
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