MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ClamAV and an ML classifier, and contains numerous embedded URLs pointing to suspicious domains. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM indicates a link farm on disposable hosting, suggesting a phishing or malware distribution scheme. The presence of external URIs and the overall structure strongly suggest this PDF is designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
Heuristics 5
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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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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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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://medvor.ru/uplcv?utm_term=pdf+book+reader+for+android PDF link annotation
- http://naoshima-habitant.com/images/blog/file/80401303866.pdfIn PDF document text
- https://guapa2.com/admin/fck/file/57680944593.pdfIn PDF document text
- http://msslink.ru/userfiles/files/1759620565.pdfIn PDF document text
- http://matchonusa.com/uploads/files/70795931783.pdfIn PDF document text
- https://www.hosotte.com/ckfinder/userfiles/files/64524728158.pdfIn PDF document text
- https://mlmrockstars.com/ckfinder/userfiles/files/jipozoxoberipulupebawin.pdfIn PDF document text
- http://kibunajcc.com/ckfinder/userfiles/files/54374104343.pdfIn PDF document text
- http://nutronicltd.com/userfiles/file/59029604941.pdfIn PDF document text
- http://www.satit.nrru.ac.th/satit/_Adminis/ckfinder/userfiles/files/lipoluxi.pdfIn PDF document text
- http://cctechlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xivotujizetowebazixuru.pdfIn PDF document text
- http://iweldbot.com/ckfinder/pho/files/65221477927.pdfIn PDF document text
- http://fiumevivo.it/userfiles/files/resojejifepoxadexitu.pdfIn PDF document text
- http://hsi-international.com/ckfinder/userfiles/files/49819559576.pdfIn PDF document text
- https://testgit.begurholidays.com/uploads/userfiles/files/panaregowebe.pdfIn PDF document text
- http://thebrownbag.vn/upload/files/nupuvanigesobanonowi.pdfIn PDF document text
- http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16131e25ebf07b---35174124856.pdfIn PDF document text
- http://crm333.com/documentos/file/vurodorekubidomofote.pdfIn PDF document text
- https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/c5cea1cecefc32003df48b9db51665cf/9590902658.pdfIn PDF document text
- http://yoga-privates.com/yoga-privates/file/gagogarumapebutovi.pdfIn PDF document text
- http://qhchemicalsfeed.com/upload/files/mowerisiriratabozurug.pdfIn PDF document text
- https://ibericadearmerias.com/file/57663799412.pdfIn PDF document text
- http://thietbikhachsanvinhhung1.com/upload/files/6564864555.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_off0000f147.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF147 | 10268 bytes |
SHA-256: 890ccd79f038c299de51c8335eb3312275741a955ffff781ec93c946ae5882c4 |
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font_01_sfnt_off00010873.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10873 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012085.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12085 | 18132 bytes |
SHA-256: 46f066d10613b3d5038e99b1c95a11794353f08d41db61049d112d55a7a00164 |
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