MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://coretry.ru/uplcv?utm_term=aeroplane+drawing+images PDF link annotation
- https://fidelishospice.com/ckfinder/userfiles/files/difijubudedire.pdfIn PDF document text
- http://tgtech-auto.com/userfiles/file/patezitodifabofosugigil.pdfIn PDF document text
- https://louvre.lv/res/wysiwyg/file/xonexoxemuvid.pdfIn PDF document text
- http://www.aportecnica.com/imagenes/editor/file/85368372544.pdfIn PDF document text
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b214487d740---sekejizabixef.pdfIn PDF document text
- https://www.acetechnology.co.in/wp-content/plugins/super-forms/uploads/php/files/4ak3er6v7cob60bq2atir8oe1c/mupeli.pdfIn PDF document text
- http://amandamaitland.com/images/file/70237461736.pdfIn PDF document text
- http://fouladsazanco.com/Upload/file/77140638582.pdfIn PDF document text
- http://autoshiftbid.com/fckeditor/userfiles/file/17664706402.pdfIn PDF document text
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16071ec0c8f401---98507694447.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/1bdc6f81f2943e4d5a41b0677ff33da3/nowomomuxerubof.pdfIn PDF document text
- https://www.hausbootgeiseltalsee.de/wp-content/plugins/super-forms/uploads/php/files/qbqa0vnctlnrm79gdov7vrj7k1/seduzibozagupejatamulesun.pdfIn PDF document text
- https://espiber.cl/images/uploadedimages/file/75131930245.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/vj44ueaafd92o7m0n4p0jqtre0/6990795997.pdfIn PDF document text
- https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/393969f150b5e4d26dc99d220f946d97/99411638165.pdfIn PDF document text
- http://kevinmcallisterlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/boverop.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000db2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB2F | 5360 bytes |
SHA-256: ea64c577e72613afc5d2861a2b62a1f722852dc517011d9b2aa645490ebd65ba |
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font_01_sfnt_off0000ed61.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED61 | 10820 bytes |
SHA-256: f679c9148792a61e92c07fee67abdd5827c0c2125e641d97b347676edbd00ccd |
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