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 links, many of which point to compromised WordPress sites or disposable hosting, indicating a phishing or redirection campaign. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to direct users to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 6
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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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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=transactional+leadership+in+nursing+pdf PDF link annotation
- http://hk-sai.com/ckfinder/userfiles/files/warajevetuzagosi.pdfIn PDF document text
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a57f10f0237---87306899943.pdfIn PDF document text
- http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16100e7f33dfc2---69007739634.pdfIn PDF document text
- https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/pah5gt8qgdb4e4hu2h53rcl720/43377228774.pdfIn PDF document text
- http://antwerp-reefer-tournament.be/argt/files/wejulimupiliratenaz.pdfIn PDF document text
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098678c40cb0---21599116176.pdfIn PDF document text
- http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c36e76da069---tefisodavukeboba.pdfIn PDF document text
- https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/b3adcded5d0952728f0e9c649802bdbe/41759093952.pdfIn PDF document text
- https://prosperitas.be/data/assets/file/nejanerotege.pdfIn PDF document text
- http://sieuthibds.net/images/files/27443372885.pdfIn PDF document text
- https://digireg.se/upload/82229940470.pdfIn PDF document text
- http://murielbellhomes.com/userfiles/files/63724000917.pdfIn PDF document text
- https://louvre.lv/res/wysiwyg/file/vigaxafejomiserupo.pdfIn PDF document text
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084d8520e4d5---40610395029.pdfIn PDF document text
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad4c6fec77a---xamonagabizogasi.pdfIn PDF document text
- https://shayangroup.net/wp-content/plugins/super-forms/uploads/php/files/10d45bcc82c2a3418c8245a034342f7c/69980849858.pdfIn PDF document text
- http://aarogyamedico.com/userfiles/file/jekojujoj.pdfIn PDF document text
- http://fantacyhandicraft.com/userfiles/file/74335120779.pdfIn PDF document text
- http://tsrmvolontari.it/userfiles/files/30787258686.pdfIn PDF document text
- http://vervesimuhub.com/userfiles/file/tonewa.pdfIn PDF document text
- http://kurier48.pl/files/userfiles/file/lupeze.pdfIn PDF document text
- https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/160c94eb4e625e---99761118149.pdfIn PDF document text
- https://apz-arte.com/ckfinder/userfiles/files/87370301314.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_off0000f31d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF31D | 10960 bytes |
SHA-256: 82f66bb62141dbc734b6aecb4b700a8af1aa5461979b42452518f139cbb89745 |
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font_01_sfnt_off00010c39.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C39 | 17136 bytes |
SHA-256: c56d7b193eac262d798307bab5c42359be4873b6815af554ed84b0ca02876c4b |
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font_02_sfnt_off00013871.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13871 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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