MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains multiple links to external websites, some hosted on compromised CMS platforms and disposable domains, suggesting a link farm for phishing or malware distribution. The ML classifier and ClamAV heuristic strongly indicate malicious intent, likely related to phishing or a trojan. Although no scripts were explicitly extracted, the presence of numerous URLs and the nature of the heuristics point towards a malicious document designed to redirect users to harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://crysiq.ru/uplcv?utm_term=maths+exercise+class+2 PDF link annotation
- http://cpbnatation.fr/fckeditor/userfiles/file/rumepezigexivero.pdfIn PDF document text
- https://micast.de/wp-content/plugins/super-forms/uploads/php/files/75qaqerdoor5gkfj0ojv6p7g55/8943864104.pdfIn PDF document text
- http://designbeginnings.com/upload/file/95982388194.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d882567d9e---45763376268.pdfIn PDF document text
- https://picinterior.com/ckfinder/userfiles/files/32508702676.pdfIn PDF document text
- https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/r13vm84lkqsre81ev6r43gsiu7/matidapi.pdfIn PDF document text
- https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/e4c9e01759f3ca00869df814879f83a4/ripesut.pdfIn PDF document text
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b7f55c609f---22049567764.pdfIn PDF document text
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/khj528dlvp043q61p4gqlhdd82/ziludog.pdfIn PDF document text
- https://dogathermalhotel.com/resimler/files/40855514798.pdfIn PDF document text
- http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607202b8904d6---28119462741.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b06c0b257e2---jojavet.pdfIn PDF document text
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/16091c567d7b8f---90589329171.pdfIn PDF document text
- https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/1608f6e2e651b6---66876351980.pdfIn PDF document text
- http://alituncer.com/userfiles/file/83225789136.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000db9b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB9B | 5092 bytes |
SHA-256: 85308e337d17f05257ce9cc520d84bca661e163a2b492fbf25cac3833be87d7b |
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font_01_sfnt_off0000ecf5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECF5 | 11008 bytes |
SHA-256: 857ff552f753c9dad8f15e2aa2ff18de3f2366fb60b4eafab685d2d3812b72fa |
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