MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to potentially malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://infrive.ru/uplcv?utm_term=how+to+write+letter+address+on+envelope PDF link annotation
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/a777e87342c84d7b7cf7ed3b7638cd3b/nirigugudotemofirosanerim.pdfIn PDF document text
- https://wemservice.com/ckfinder/userfiles/files/84216672205.pdfIn PDF document text
- https://svltv.in/userfiles/files/nokijat.pdfIn PDF document text
- https://samajsutra.com/userfiles/files/14303460232.pdfIn PDF document text
- https://bloomeng.com/uploads/nuxazaxewotujuru.pdfIn PDF document text
- http://montpellier-business-plan.eu/mbp/upload/images/images/upload/ckfinder/74347416646.pdfIn PDF document text
- https://onlinendttraining.net/files/doputeku.pdfIn PDF document text
- http://bjsixiang.com/jingkelun/userfiles/files/20210907053601.pdfIn PDF document text
- http://lepal.sk/ckfinder/userfiles/files/5426803811.pdfIn PDF document text
- http://xn--rssx31a7tec6p.com/upload/userfiles/files/20210905171302.pdfIn PDF document text
- https://wmu24.ru/media/file/mufiramajemilulipa.pdfIn PDF document text
- http://kanchanaspa.com/ckfinder/userfiles/files/rovefipaxef.pdfIn PDF document text
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1613510829d4e2---zusumofijutikupakumejeje.pdfIn PDF document text
- https://www.abrasco.org.br/ckfinder/userfiles/files/momepuxaxejijedasirof.pdfIn PDF document text
- https://a-pointpro.com/cms/ckfinder/userfiles/files/dexikalukewapilivefap.pdfIn PDF document text
- http://rdmsrl.it/userfiles/files/92706606510.pdfIn PDF document text
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131aa636a543---55208794214.pdfIn PDF document text
- https://sikdercollegeofpharmacy.com/scp/ckfinder/uploads/userfiles/files/12365687538.pdfIn PDF document text
- http://hyundaiokla.com/uploads/files/zigesupigedubosesisexes.pdfIn PDF document text
- http://erpos.sk/data/files/26630562571.pdfIn PDF document text
- https://cooperadora.grupocreartel.com/documentos/archivos/83865094064.pdfIn PDF document text
- http://hanart21.com/files/userfiles/file/getosovuzasoxag.pdfIn PDF document text
- https://dagvandearchitectuur.be/_files/file/vizulakin.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_off0000d029.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD029 | 16680 bytes |
SHA-256: b04e6c9f5803efc4868ba9f82edd67a3cf691cd056e92388fe6a35655bad73fb |
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font_01_sfnt_off0000fa8d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA8D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000112a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112A4 | 10528 bytes |
SHA-256: c22b36f839c5fe2925138000369a6e8152273936266712b378aa1b58be708265 |
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