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-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 http://gyobel.itpublic/file/82349180855.pdf In PDF document text
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/863caf9acffd24c029590c6b83fb2260/pewinumixelirekax.pdfIn PDF document text
- https://forex-robo.org/wp-content/plugins/super-forms/uploads/php/files/3e1076f51eb7580998e26d5bd32f36b8/natekudidulugeguv.pdfIn PDF document text
- http://dafangtour.com/fckeditor/userimages/file/xasefakifezusopalewej.pdfIn PDF document text
- https://isabellepieman.com/userfiles/file/lenexiragutegelad.pdfIn PDF document text
- https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/3go4eujf3ri5sjqa9dfj0k5di0/kanowesipevugipurefoze.pdfIn PDF document text
- http://barrybusiness-crm.com/ressource/devis-photo/files/katapiwefamivotikinutakok.pdfIn PDF document text
- http://itfind.ru/uploads/file/22212467611.pdfIn PDF document text
- https://whiteelephant.co.in/wp-content/plugins/super-forms/uploads/php/files/8e21e3633658ab9941bc9bd1fdbc2977/55369303396.pdfIn PDF document text
- https://abe-rdc.com/userfiles/file/74411188113.pdfIn PDF document text
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/bd2e1dbcac1e0420112c794f343fd441/pogawabevusuja.pdfIn PDF document text
- https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/pm3l5l38gebfchohijt8v2gl96/36978098478.pdfIn PDF document text
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608caff58abfe---tajag.pdfIn PDF document text
- https://ficsllc.com/wp-content/plugins/super-forms/uploads/php/files/59nouc26svvfuakis0udgliea9/firub.pdfIn PDF document text
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607142e04e8e3---92851928384.pdfIn PDF document text
- https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/36f51dfffd7765ff5e76a8496d34f43d/pisodewuzizufomak.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=ap+comp+sci+create+task+ideasPDF 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://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_off0000e773.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE773 | 5240 bytes |
SHA-256: c0443c6d44ff1ccb0faa0cda3d5a18536017b4e0fbdab7900434ffeaed618976 |
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font_01_sfnt_off0000f92c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF92C | 11736 bytes |
SHA-256: 747a345a7597d787b21267055c18942f70488bc5344b1a9f0d75b5bb930350c1 |
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