MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS upload storage, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic further support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/160b5512c450f9---31654032745.pdf In PDF document text
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/he0bt3mo0j3gdfd6751ps5nt6o/6553934067.pdfIn PDF document text
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/16072a6eb3c56d---fijomudutibipu.pdfIn PDF document text
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073e1bfb0a9f---7044822402.pdfIn PDF document text
- http://polyalpan.hu/_user/file/13634319135.pdfIn PDF document text
- http://www.eau-msu.ru/ckfinder/userfiles/files/bedevazipolave.pdfIn PDF document text
- http://conblocmanado.com/pics/file/fejobujudukizusoted.pdfIn PDF document text
- http://aeronautike.com/userfiles/file/kogabigez.pdfIn PDF document text
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7dc106109d---rebefojozajipimamitaxo.pdfIn PDF document text
- http://hanasushichoice.com/uploads/files/gubefopanufegi.pdfIn PDF document text
- http://tentauto23.ru/ckfinder/userfiles/files/20129916799.pdfIn PDF document text
- https://www.webplease.it/wp-content/plugins/super-forms/uploads/php/files/g1vg4j3utu8pue5j7b01ehk8u3/mubesegimijufezusumejepur.pdfIn PDF document text
- http://ulleungroadtour.com/FileData/ckfinder/files/20210819_98B108E9B42D572E.pdfIn PDF document text
- https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d7eef4a26e---53502564952.pdfIn PDF document text
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b6f0cb971a---21574055360.pdfIn PDF document text
- http://t-p-fortune.com/userfiles/file/tilojefozawelumet.pdfIn PDF document text
- http://ros-grad.ru/fck_editor_files/files/56211485576.pdfIn PDF document text
- https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160829fc70aedd---3947792234.pdfIn PDF document text
- https://barcelona-health.com/files/galeria/files/mimapuk.pdfIn PDF document text
- https://roweryelectra.eu/app/webroot/uploads/file/16210772031606.pdfIn PDF document text
- http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/160910cab085cf---maridogo.pdfIn PDF document text
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091252580f41---sukozafapogeniti.pdfIn PDF document text
- http://hotelalbicia.com/userfiles/file/25621696733.pdfIn PDF document text
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/160db1fe843a84---37270960469.pdfIn PDF document text
- https://mccartha-cobb.com/userfiles/files/jagorajo.pdfIn PDF document text
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/e9d8ad850b1bec92c2f7871b727d60f5/duxomoniwogeruzeki.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=vw+golf+8+preisliste+pdfPDF 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_off0000d965.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD965 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f177.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF177 | 18692 bytes |
SHA-256: 169943ab4ea40062bd6236ec232486607bf15306bd03a6370ddcb6937c72e6ec |
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font_02_sfnt_off00012286.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12286 | 10672 bytes |
SHA-256: 17b882168d672b981aec044dd00e48eca62bcc017b9cc41932ebd3fb63859b85 |
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