MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple links to external resources, many hosted on compromised WordPress sites, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of embedded URLs and the nature of the heuristics point towards a spearphishing attachment attack pattern, likely designed to trick users into downloading a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://inwebjor.ru/uplcv?utm_term=approaches+and+methods+in+language+teaching+second+edition+pdf PDF link annotation
- https://parklanehotel.asia/userfiles/file/rubawekufefese.pdfIn PDF document text
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b526d19df2e---54502240883.pdfIn PDF document text
- http://mhs69indians.com/clients/864804/File/27973643608.pdfIn PDF document text
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ae3abfd3d6c---86208638295.pdfIn PDF document text
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/b3542b31c78449e3c7a0a5fa31bb02ff/64648245066.pdfIn PDF document text
- https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/pjgkjga4h8ec89i68ouoeg5nh8/27157745096.pdfIn PDF document text
- http://ok-poland.com/userfiles/file/dinoviranusuga.pdfIn PDF document text
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/eb98v5kp22hu7k2b0e6i0oihi1/14259553167.pdfIn PDF document text
- http://crmrealty360degree.in/userfiles/file/kawemax.pdfIn PDF document text
- https://www.tristar-technology.com/ckfinder/userfiles/files/19346374762.pdfIn PDF document text
- http://hongshengfish.com/uploadfiles/2021062709505078539.pdfIn PDF document text
- http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160848b13cc303---sotaxodogusinujidovidi.pdfIn PDF document text
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/16095a9c6ce17f---50477028547.pdfIn PDF document text
- http://yossy.biz/userfiles/file/mobede.pdfIn PDF document text
- https://investmentskillsgroup.com/images/userfiles/file/nipep.pdfIn PDF document text
- https://opsclown.it/ckfinder/userfiles/files/nudova.pdfIn PDF document text
- http://asdgolfclubtoscana.com/writable/public/userfiles/file/bewufipun.pdfIn PDF document text
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/dmgpc4qgjm1pbefqfeqfa3sv41/68817266214.pdfIn PDF document text
- https://europeancustomtailor.com/wp-content/plugins/super-forms/uploads/php/files/18610ed52675fd858754385c72c332fe/tikozedafibisizuruf.pdfIn PDF document text
- http://ylpqzl.com/ckfinder/userfiles/files/zirevujivopapatebogowe.pdfIn PDF document text
- http://hotechike.com/files/files/vokizumerawew.pdfIn PDF document text
- https://questyme.ca/userfiles/file/11246733568.pdfIn PDF document text
- https://laser-arena.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160871d849ad77---mebunakowiwufigiwekasesu.pdfIn PDF document text
- https://relaxbotanika.cz/ckfinder/userfiles/files/46613340402.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_off0000edc6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDC6 | 17088 bytes |
SHA-256: cb8a3fa71c8f8d80f248c2da29a1f00168d6b0bd32d6a78a4d6366d29f85dfa5 |
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font_01_sfnt_off000119dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119DD | 11148 bytes |
SHA-256: 3f5c22c0b243f6d00a7a6c535ccd4a4c2d74571fbb7124be84bf44984f2e24b1 |
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font_02_sfnt_off00013385.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13385 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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