MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and a high ML score. It contains numerous links, many pointing to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt, likely initiated via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
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://skene.es/userfiles/file/76179245334.pdf In PDF document text
- http://mutamobilya.com/images_upload/files/6216156254.pdfIn PDF document text
- https://miet.hu/kepek/bakobes.pdfIn PDF document text
- https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/acb7feaaf418088b2094518143073fa9/gokeweraxol.pdfIn PDF document text
- http://logistra.fr/ressource/site-image/files/78696119270.pdfIn PDF document text
- https://nmg.lv/img/uploads/files/puvetawunajid.pdfIn PDF document text
- http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c5658f0c48---42528544680.pdfIn PDF document text
- https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/16141fc5e6da68---miruxi.pdfIn PDF document text
- http://alessandrobelleseveterinario.eu/userfiles/files/4219327615.pdfIn PDF document text
- http://www.ctmmaximoravenna.com/ckfinder/userfiles/files/2397717769.pdfIn PDF document text
- http://change4best.ru/upload/file/todojur.pdfIn PDF document text
- http://ptichile.cl/userfiles/file/difenarosanusumamiborari.pdfIn PDF document text
- https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/q9rutfgbq2q38vpcafccbukvk0/78584745824.pdfIn PDF document text
- http://metamorfoza-krosno.pl/userfiles/file/wulugi.pdfIn PDF document text
- http://tetraeng.it/userfiles/files/97392354755.pdfIn PDF document text
- https://oxi-dental.ro/imagini_ws/30263480591.pdfIn PDF document text
- http://phukientubepxinh.info/gomsu/sanpham/anh/files/xinunakejuzegutup.pdfIn PDF document text
- http://elverum-revmatiker.no/images/file/88189458801.pdfIn PDF document text
- https://protrialse.eu/files/files/notawuwusepinapewozis.pdfIn PDF document text
- http://icsbc.ru/fuploader/file/jakugixujuvefuxujizuzav.pdfIn PDF document text
- https://eyescare.vn/app/webroot/upload/ckfinder/files/dukoxisadisuberaka.pdfIn PDF document text
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613540d226835---20881799332.pdfIn PDF document text
- http://chekeeh.ir/basefile/chekeehir/files/wumulote.pdfIn PDF document text
- http://zaiger.ru/img/file/kumeragutevozanagipebaku.pdfIn PDF document text
- http://hanasushi6.com/uploads/files/28256855755.pdfIn PDF document text
- http://warehousetraining.ie/images/tonesibubusu.pdfIn PDF document text
- http://kimsanghun.com/upload/userfiles/file/2021918556496627.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=chromecast+applications+for+androidPDF 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_off0000db07.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB07 | 18268 bytes |
SHA-256: 9f833b53352926c30093516a86b898b29828b447c9fd9c82ee4917fcf7f66159 |
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font_01_sfnt_off00010aec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AEC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012303.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12303 | 10916 bytes |
SHA-256: 81c23e51abe9d747335c939ca8d3edf19facba419b0614d12bbbca80e1c94d59 |
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