MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and other domains, suggesting an attempt to redirect users to malicious content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a tactic to obscure the true destination of the links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/16472a108c23130939217c1ef4e6b221/vojijekepetute.pdf In PDF document text
- http://hanstime.com/userData/board/file/29197645430.pdfIn PDF document text
- https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/c38314bc1dbcd85b83875e48c866745c/57783649632.pdfIn PDF document text
- http://fslawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nebutapotavezujixidovobiv.pdfIn PDF document text
- http://cinstech-inspect-survey.com/fckeditor_userfiles/file/rejawutovinofajutadalire.pdfIn PDF document text
- http://dga.gr/ILC/img/file/luborilumidefogekumemip.pdfIn PDF document text
- https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/o7d4qkapqkdrm8963lejtrua37/94116480934.pdfIn PDF document text
- https://alrukn.co/userfiles/files/50984553956.pdfIn PDF document text
- https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130666b79037---15328755322.pdfIn PDF document text
- http://secureyun.cn/uploadfile/file///2021090812583860.pdfIn PDF document text
- https://wietsevoermans.nl/ckfinder/userfiles/files/vumixesopufirugejedi.pdfIn PDF document text
- http://osmed.cz/app/webroot/files/files/98988027324.pdfIn PDF document text
- http://studio-rivetti.it/userfiles/files/52888284281.pdfIn PDF document text
- http://zaintik.org/files/galeria/files/11476509397.pdfIn PDF document text
- http://bibliotekaludwin.pl/img/upload/files/tubusanozenemewil.pdfIn PDF document text
- http://ngocvietbungalow.com/upload/files/tapokikoxa.pdfIn PDF document text
- http://uekekb.ru/!upload/files/52046395918.pdfIn PDF document text
- http://arohitourandtravels.com/userfiles/file/271445232.pdfIn PDF document text
- http://elcwma.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/29788155863.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=screen+overlay+apkPDF 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_off0000d8c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8C4 | 10356 bytes |
SHA-256: 2de880ccf391b9cc3e2f01a6a5ed5f0c612914e972243a02ee321ba5061811ea |
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font_01_sfnt_off0000f052.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF052 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010864.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10864 | 18764 bytes |
SHA-256: 679af0cf3de5b08f675ecb52733bec9fe86e68710bfe59827c1a073c57c1ec93 |
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