MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution through these links. The presence of a 'download button' heuristic further supports a lure-based attack pattern.
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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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://yuanjen.com/ckfinder/userfiles/files/4206983719.pdf In PDF document text
- http://pillshop.ru/uimg/files/xopirefisekemom.pdfIn PDF document text
- https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/uib7poekvrgrgvp48hq8cpe7vd/vupabubatoresox.pdfIn PDF document text
- http://spalovnachemolak.sk/userfiles/file/10307564913.pdfIn PDF document text
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b516c6c9434---90458311196.pdfIn PDF document text
- http://ctkupavna.ru/upload/file/gimifes.pdfIn PDF document text
- http://ufnk.fr/app/webroot/files/file/68053103788.pdfIn PDF document text
- https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/0d7f6718addcbcaba22286045afc9a2f/varokerovegofemupawaz.pdfIn PDF document text
- https://rtvpuls.com/ckfinder/userfiles/files/68224348565.pdfIn PDF document text
- https://mavibusiness.it/file/xuzokariwokadudusigeta.pdfIn PDF document text
- http://duoctruongxuan.vn/userfiles/image/file/36896165207.pdfIn PDF document text
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16081096d387ca---53126733076.pdfIn PDF document text
- http://businessdevelopmentcenter.pl/uploads/userfiles/files/65714685679.pdfIn PDF document text
- http://www.rpv-drachten.nl/files/file/70680782470.pdfIn PDF document text
- https://sporyolu.com/resimler/files/wafedosifis.pdfIn PDF document text
- http://btfa.tw/upload/files/29003728906.pdfIn PDF document text
- http://dorrstrechy.cz/UserFiles/File/vedulonunal.pdfIn PDF document text
- https://uudanbury.life/files/file/susimifetug.pdfIn PDF document text
- https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/b38790834fefec990035d5ad6b6f17db/31486020575.pdfIn PDF document text
- https://www.dooleysnaturalgas.com/ckfinder/userfiles/files/votawagobasalujaxidekex.pdfIn PDF document text
- https://jyapa.com/jhuoyue/uploadfiles/kisoxisi.pdfIn PDF document text
- http://novussiteyonetimi.com/uploads/file/xuzizu.pdfIn PDF document text
- http://donateagift.eu/userfiles/file/60155539828.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=is+18k+gold+stronger+than+14kPDF 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e353.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE353 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fb65.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB65 | 18096 bytes |
SHA-256: 6db0e6ec120b25d5c240743c31360ca3a5a3d3b22bade7b2636d2d8214595ec8 |
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font_02_sfnt_off0001293d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1293D | 10816 bytes |
SHA-256: a2232d80339e0b2bbc6d2283af57da8228863935a18177024b10af1a5000de4e |
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