MALICIOUS
212
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and presents a lure for a browser extension or download, indicating an attempt to trick the user into executing malicious code. The presence of multiple links to compromised CMS uploads and disposable hosting further supports a malicious intent, likely to download a second-stage payload. The ML classifier and ClamAV detection strongly indicate maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9922
Heuristics 9
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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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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://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/b08f1bc9e7559ce51a7d65a3fe7c6c30/69108560834.pdf In PDF document text
- http://daieimotors.com/js/upload/files/fobuz.pdfIn PDF document text
- https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/90e0d664704b483c27ecbb79f16da920/laxur.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b567a8493f4---49915249843.pdfIn PDF document text
- http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/160913f4f6b824---jifofelelajevizebebelal.pdfIn PDF document text
- https://repare-ton-smartphone.com/userfiles/file/nopovevi.pdfIn PDF document text
- http://angelescare.com/userfiles/file/nexetadu.pdfIn PDF document text
- https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608f64549ef05---pamuta.pdfIn PDF document text
- http://grgct.com/ckfinder/userfiles/files/64778218140.pdfIn PDF document text
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c2f4e923aed---6439027541.pdfIn PDF document text
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/48628685c8c077f0051d1ff58bac5028/pivarozisazuvo.pdfIn PDF document text
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b233439b232---kixibagiri.pdfIn PDF document text
- https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/2c8b5ca9d3216a4c490ebc4fd1926f18/41353663085.pdfIn PDF document text
- https://transmar.biz/ckfinder/userfiles/files/80783600806.pdfIn PDF document text
- https://jgmurphy.com/wp-content/plugins/super-forms/uploads/php/files/8d114ae6fb9bb3e17ab2a70b07136dd7/jiduzirobudolin.pdfIn PDF document text
- https://healthmatters.me/userfiles/file/gopofarewidalexa.pdfIn PDF document text
- https://fellowpeo.com/wp-content/plugins/super-forms/uploads/php/files/e3e24d40945c66420098113fc24009c8/81533867686.pdfIn PDF document text
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607579d65dd92---begalowised.pdfIn PDF document text
- http://tvtamminhphat.com/uploads/userfiles/file/ratali.pdfIn PDF document text
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080ff3826d26---wadifonuvekovujoduso.pdfIn PDF document text
- http://www.ecvbrass.ch/user/web/file/kipadidorekaz.pdfIn PDF document text
- http://gsxr.hu/userfiles/file/zolodovebenuvom.pdfIn PDF document text
- http://valleypainclinic.org/userfiles/file/fitujakosu.pdfIn PDF document text
- http://speaklifeiamgreatness.com/files/files/20281160522.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=synapse+script+executor+free+downloadPDF link annotation
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cf6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF6F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e786.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE786 | 11092 bytes |
SHA-256: 8b6f5dedce53cedb2fbbb5e6630f05012db8ca0017fb560417bc168840d6e0a3 |
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font_02_sfnt_off00010196.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10196 | 17272 bytes |
SHA-256: 07c023b97e689fa2340968bb11a61c090e1a8e83d39af78bebe040b5bd2fd7f1 |
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font_03_sfnt_off00012f01.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F01 | 16428 bytes |
SHA-256: 23191a20989a09959b2cbcbcedb805b598ca26499a9d836ac043174a76a4ddba |
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