MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to compromised WordPress upload storage and other disposable hosting sites, suggesting it functions as a link farm to distribute malicious content or phish users. The PDF structure and embedded URLs point towards an attempt to redirect users to potentially harmful external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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 http://18554080.com/userfiles/file/85824481320.pdf In PDF document text
- http://montaze.org/democms/userfiles/file/bakaropuxikolovomotefov.pdfIn PDF document text
- http://hondatayho.top/img-ngocbao/files/4619228063.pdfIn PDF document text
- https://msr-hudsonproperties.com/wp-content/plugins/super-forms/uploads/php/files/fda97356dfe076da1b71a38d681e91c1/wosibas.pdfIn PDF document text
- https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/12279387950.pdfIn PDF document text
- http://esoftland.com/userfiles/file/bixufubazagu.pdfIn PDF document text
- http://arisutour.com/ckupload/files/vatoredam.pdfIn PDF document text
- https://vegas-shop.net/uploads/files/46519491175.pdfIn PDF document text
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/4f14cb99152354b532808bd34f62c5a6/giruzuz.pdfIn PDF document text
- https://www.willmarshelter.com/ckfinder/userfiles/files/womikifesumumaze.pdfIn PDF document text
- http://ferrogep99.hu/static/media/file/vareporidon.pdfIn PDF document text
- http://blackshirts1962.com/clients/f/f2/f245580d3072b78cda2271cf7a7e3f61/File/38182683760.pdfIn PDF document text
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a273d5ce2a2---jamuditorefig.pdfIn PDF document text
- http://urduhadith.org/survey/userfiles/files/bibenanikuk.pdfIn PDF document text
- https://serwisnawigacji.pl/userfiles/file/22193360058.pdfIn PDF document text
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/83be60cff70b33be2bc49e2b86f3da28/segomuf.pdfIn PDF document text
- http://taikenplan.jp/ckfinder/userfiles/files/10275576124.pdfIn PDF document text
- http://mai-colle.jp/userfiles/file/7942854589.pdfIn PDF document text
- http://www.taimaobi.com/admin/ckfinder/userfiles/files/folubukogejejejudobimem.pdfIn PDF document text
- http://interstyle.org/content/xuploadimages/file/liganejanevuvupojata.pdfIn PDF document text
- http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/1606f29a411dd2---41392182082.pdfIn PDF document text
- https://berbagiangka.com/contents//files/fokukaroguji.pdfIn PDF document text
- https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1608f3172b3316---wigawuziripozaramegoba.pdfIn PDF document text
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/bk1aa06k3jn6ahjndrbkhon182/rupuvekisifix.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=problemas+de+concentracion+de+porcentaje+en+masa+y+volumenPDF 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_off00011d19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D19 | 19148 bytes |
SHA-256: 50080fd47d33737acf5ccc204106a2abb494e9348e5301e59dda25c269403373 |
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font_01_sfnt_off00014f0a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14F0A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00016721.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16721 | 11224 bytes |
SHA-256: a64df263503a2f31a7e8c3ae77d15e6d9d25d41cb2efa0c6085b5ed21668c52f |
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