MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to compromised WordPress sites, indicating a link farm designed to redirect users. ClamAV and ML classifiers strongly indicate malicious intent, specifically phishing. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this, suggesting the PDF is used to distribute or link to malicious content hosted on compromised infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16077e5b18a02a---gowukezugidumupibok.pdf In PDF document text
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/16101125de1add---gelexamijadawite.pdfIn PDF document text
- http://vds-construct.pl/userfiles/file/waranugapesimasagog.pdfIn PDF document text
- http://pmrs.ps/userfiles/file/gokomekarumadolor.pdfIn PDF document text
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610d62aa0b771---laxijitamavojegavesupiza.pdfIn PDF document text
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160d2eaa0635da---jidaribifusizibe.pdfIn PDF document text
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/063a9040f1b06c5c30670f6e3b57edc8/34655378737.pdfIn PDF document text
- https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/e007e61272b27eb89154a81ed81fd987/48068539307.pdfIn PDF document text
- http://ctkupavna.ru/upload/file/dasuwazopeji.pdfIn PDF document text
- http://kargiskola.ge/myadmin/ckeditor/ckfinder/userfiles/files/xuleze.pdfIn PDF document text
- http://prota.ru/upload/files/71888961288.pdfIn PDF document text
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610d549fbfe24---sufofugoravorolut.pdfIn PDF document text
- http://hilltopperalumni.com/clients/9/93/936f23dc4abb03f6d4a1aae2c8a32781/File/49306649642.pdfIn PDF document text
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b0bc04030ed---5212026910.pdfIn PDF document text
- https://glycocalyx.nl/userfiles/image/file/94348171953.pdfIn PDF document text
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16075dd36b6d67---fiburugore.pdfIn PDF document text
- http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/2ab6081898923eddaf5eb831110fc463/zuzitu.pdfIn PDF document text
- https://maxim-catering.de/wp-content/plugins/super-forms/uploads/php/files/tn8hsc038hve4rd3n1e0e31t2s/vezaludumurumavepoko.pdfIn PDF document text
- http://faradbox.pl/files/file/tafasujujowe.pdfIn PDF document text
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/160886a5c22350---jopanupu.pdfIn PDF document text
- https://mut-zur-veraenderung-hambuch.de/userfiles/file/fujozupejulizalorid.pdfIn PDF document text
- http://kup-vino.cz/web/ckfinder/userfiles/files/88028168625.pdfIn PDF document text
- https://realschoolspirit.com/scauserfiles/files/xezazumawebis.pdfIn PDF document text
- https://ienter.bg/files/17805522844.pdfIn PDF document text
- http://airelimpio.mx/img/editor/file/15201416603.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=irregular+heart+rate+causesPDF link annotation
- 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_off0000e35b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE35B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fb6d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB6D | 16432 bytes |
SHA-256: 179380e924b0dd65e5e5e3d4d8ab2c975a7e03e25c031fb778fe26625928a3b5 |
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font_02_sfnt_off00012614.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12614 | 10244 bytes |
SHA-256: 4aaa33d7fa121f35b382d5a6ef3bd1967868410dc7296082c155c5e970d8718e |
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