MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://nomylo.ru/uplcv?utm_term=api+in+android+studio PDF link annotation
- http://npk-bypassdrr2.com/file_media/file_image/file/38095594249.pdfIn PDF document text
- http://canadianrockies.ca/files/file/bidogavokuvidufowuboragek.pdfIn PDF document text
- https://avukatwebsitesi.kocgrafik.net/upload/files/betokepufaritufapi.pdfIn PDF document text
- http://abwcockeysville.com/uploads/files/30841732643.pdfIn PDF document text
- https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/4720f856493af2f06dbff2fb54f14553/gonojemugixawopikokinok.pdfIn PDF document text
- http://verynailscm.com/user_img/file/bepadamas.pdfIn PDF document text
- http://hoya889.com/upfile/files/20210911130756.pdfIn PDF document text
- http://tele-klass.ru/i/upload/files/25563242138.pdfIn PDF document text
- http://hotel-ambassador-nice.com/upload/files/10516349916.pdfIn PDF document text
- http://mundori.com/js/ckfinder/userfiles/files/95754823311.pdfIn PDF document text
- http://tsrmmessina.it/userfiles/files/kozarazena.pdfIn PDF document text
- https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/2ced2aaecd4dbf41591a8173d74f2748/dukaz.pdfIn PDF document text
- http://dgjinhak.kr/DATA/upload/files/202109170916484416.pdfIn PDF document text
- https://paardenwelzijnscheck.nl/app/webroot/files/ckeditor_files/files/tapeziwigi.pdfIn PDF document text
- http://acril.ru/ufiles/files/11195585102.pdfIn PDF document text
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161392d29b923c---wiwalinojotid.pdfIn PDF document text
- https://karaari.leaddeehub.com/userfiles/files/96929694047.pdfIn PDF document text
- http://myapartment.de/web/editor/files/98779982445.pdfIn PDF document text
- http://dallapietamarchisio.it/userfiles/files/lafatajupubawegasew.pdfIn PDF document text
- http://gniortho.com/files/Upload/file/38096859648.pdfIn PDF document text
- http://thekreativecompany.com/uploaded_files/userfiles/files/1541945051.pdfIn PDF document text
- http://workcoop.org/fckeditor/userimages/file/20210907164424.pdfIn PDF document text
- http://dglytbt.com/upfolder/e/files/20210911202949.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_off0000df5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF5D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f76f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF76F | 16528 bytes |
SHA-256: 136b1c836b785c26e836f933bd91deaf595b1cc503df51075ed558e7ab89cf01 |
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font_02_sfnt_off0001221a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1221A | 10288 bytes |
SHA-256: 742234375b2b91ac2e8774321706c2167447ba366900b828d3841088ed457345 |
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