MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable domains, indicating a link farm designed to lure users to potentially malicious content. The ClamAV detection and ML classifier strongly suggest a phishing or trojan distribution intent. Although no scripts were explicitly extracted, the nature of the embedded URLs and the 'link farm' heuristics suggest a mechanism for delivering second-stage payloads or redirecting users to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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 https://chcial.ru/uplcv?utm_term=top+preschool+apps+for+android PDF link annotation
- http://another-partner.morefriendship.com/upload/files/61122685990.pdfIn PDF document text
- http://vsrru.ru/userfiles/file/8162427530.pdfIn PDF document text
- http://4els.ru/uploads/images/files/bodevojijogaf.pdfIn PDF document text
- https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614f4e29bf621---ronav.pdfIn PDF document text
- https://mygoaltv.com/ipp/images/uploads/files/3737727372.pdfIn PDF document text
- http://balie.overeembv-profielen.nl/upload/files/2616049842.pdfIn PDF document text
- https://wic-net.com/userfiles/file/toxetaw.pdfIn PDF document text
- http://4rrecycle.com/files/file/pidikuxu.pdfIn PDF document text
- https://webmedcentralplus.com/userfiles/file/13361258648.pdfIn PDF document text
- https://demoliman-host168-com.twbiz.me/data/html_editor/files/zugabalagononep.pdfIn PDF document text
- http://harringtonassociateslaw.com/Test/JabzMedicalBillingService/userfiles/file/19842503681.pdfIn PDF document text
- http://www.wm-meyer.de/meyer/admin/editor/ckfinder/userfiles/files/57099077143.pdfIn PDF document text
- https://cardion.dk/gfx/fckimages/file/9673250440.pdfIn PDF document text
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/90525a8205b6f9a4051b4c11f569fe00/20279897928.pdfIn PDF document text
- https://porfic.com/fotos/file/17962293938.pdfIn PDF document text
- http://influences-vegetales.eu/assets/Image/files/3008958340.pdfIn PDF document text
- https://tucarrorentacar.co/ckfinder/userfiles/files/fifukilef.pdfIn PDF document text
- https://52fantasies.com/home/holly/public_html/ckfinder/userfiles/files/15235695063.pdfIn PDF document text
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/16149b8fe3000a---53391934899.pdfIn PDF document text
- https://stockbauer.hu/uploads/file/sawonovojesefakevil.pdfIn PDF document text
- http://agriturismolataggiasca.eu/userfiles/files/32766568187.pdfIn PDF document text
- https://asiapharma.la/files/files/72935996.pdfIn PDF document text
- http://mebelhotel.ru/userfiles/files/vonuvoji.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_off0000ad45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD45 | 14476 bytes |
SHA-256: e36c327b6a41b35296a0f478533b2c2a31999ce5bd07d8ad366d74696d4f440b |
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font_01_sfnt_off0000d16f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD16F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e986.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE986 | 10584 bytes |
SHA-256: d93d3fbfffcbcc79bf00364d21c07d35df06d56ac088ae98120b3882c55d8f0b |
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