MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ML classifiers and ClamAV as malicious, indicating it likely serves as a phishing or malware distribution lure. The presence of multiple external URIs, many pointing to compromised WordPress sites, suggests a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and contains metadata suggesting it was generated by wkhtmltopdf, a tool often used to create PDF versions of web pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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 http://reutlinger.pl/userfiles/file/tidedaz.pdf In PDF document text
- https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/82979aae294ee7d5a06865eb45e2fbf8/lopuninumufivitoxipesol.pdfIn PDF document text
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abae6a6179a---ritejefedujo.pdfIn PDF document text
- http://tantusmarina.com/UserFiles/file/pajomavowejowo.pdfIn PDF document text
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/b97bbcfb50f8e2a303ae0f83fb8c672b/remumekamuvovugemom.pdfIn PDF document text
- https://nscs.org/wp-content/plugins/super-forms/uploads/php/files/d4b9b2b5d14bec7e5916f056ec0376bb/97509965370.pdfIn PDF document text
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1608226f824359---veroxologam.pdfIn PDF document text
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606f19cbe7619---zozerap.pdfIn PDF document text
- http://www.elitagida.com.tr/wp-content/plugins/super-forms/uploads/php/files/1heutsvb9riodevjehdeqq5qp6/51900822351.pdfIn PDF document text
- http://campbellelectronics.com/uploads/namukukodiwafuref.pdfIn PDF document text
- https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/h1vmvmc314820o6rg0lqcbh586/gorafikugerebijebomeb.pdfIn PDF document text
- http://jagodkaprzedszkole.pl/userfiles/file/gewuxawowelapit.pdfIn PDF document text
- https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/478de3b718c7e286b0db596fbdc2c464/kaxugeginugob.pdfIn PDF document text
- https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/644dd9e37f1d2c60f594ea9d841829fc/18125256841.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=vidas+secas+download+pdf+completoPDF link annotation
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/64fb5c3be028d9a8090a319d321760ad/nalebofigolamab.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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001751b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1751B | 5260 bytes |
SHA-256: 41179bb9bc8bfc8833c45f76974455cb78da4aab5c8ec7de02bfe22952964b28 |
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font_01_sfnt_off00018706.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18706 | 2156 bytes |
SHA-256: b7d2811abd610e1afac51195fcb467254fa996601faabed743e98b0e80f7d5fb |
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font_02_sfnt_off00019070.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19070 | 14400 bytes |
SHA-256: 84da1ee9a7b535415a20b5b99f6742f3d61b6bfebb0d98f8f568b1a6b7b00f55 |
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