MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to other PDFs hosted on compromised websites. Heuristics indicate this is a link farm designed to direct users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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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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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://krisoc.ru/uplcv?utm_term=appli+gestion+contacts+android PDF link annotation
- https://shevtsov-art.com/uploads/files/ferefunifamik.pdfIn PDF document text
- http://swvocal.com/data/se2/file/80184655283.pdfIn PDF document text
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fd27e28b06---jofefulobobexekadi.pdfIn PDF document text
- http://vekosgroup.ru/userfiles/file/xijaturebamufavobasisimiw.pdfIn PDF document text
- http://1day2night.com/UserFiles/file/91301027052.pdfIn PDF document text
- http://associatedreclaimed.com/userfiles/files/80970922509.pdfIn PDF document text
- http://www.yeosung21.or.kr/ckfinder/userfiles/files/1631259341.pdfIn PDF document text
- https://ibexquimica.com.br/ckfinder/userfiles/files/rasimokigob.pdfIn PDF document text
- http://the100voicesofgospel.de/fichiers/newsletter/file/43925631958.pdfIn PDF document text
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/ae4d6a9cee32ec0226a8641cfa2bd5bc/dekukovowexujawefosiketas.pdfIn PDF document text
- https://edouardweil.com/userfiles/file/8908901286.pdfIn PDF document text
- http://xn--dlek-5qa.com/admin/UserFiles/file/vojixevukoxa.pdfIn PDF document text
- https://safetypadlocks.eu/eurostyl/photos/file/sofajegawarex.pdfIn PDF document text
- http://maschimaurizio.it/userfiles/files/petaravezilolokizawewibeg.pdfIn PDF document text
- http://csp.hu/editor_up/6037421115.pdfIn PDF document text
- https://lixtech.com.tw/ckfinder/ckfiles/files/mosizu.pdfIn PDF document text
- https://twinscooking.nl/twins/userfiles/file/44198059330.pdfIn PDF document text
- http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613ff8b7258f9---37712406065.pdfIn PDF document text
- http://nessium.net/userfiles/file/burexovabibu.pdfIn PDF document text
- http://manpukulivermore.com/uploads/files/molejizidotot.pdfIn PDF document text
- https://nocenzura.space/web/img/podborky/files/92036041466.pdfIn PDF document text
- http://homelife-superstars.com/image/files/25323440216.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_off0000d3dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3DC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ebf3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBF3 | 10672 bytes |
SHA-256: 822bed31fe22de9fcac902af9a18b81355ac3c2f6deadb420222da85bfd4492c |
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font_02_sfnt_off00010451.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10451 | 17872 bytes |
SHA-256: 43e2d5abc20f935640d9f211ca4f7d0f05ab10d430e314b4def6a1d66e2959b3 |
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