MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or SEO poisoning attack. The embedded URLs, while some are benign, are part of a larger pattern of directing users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16140721f1341a---40604541971.pdf In PDF document text
- https://abss.pt/userfiles/file/lawarokujivakepeno.pdfIn PDF document text
- http://ippon.lv/uploads/File/teloxotodewaju.pdfIn PDF document text
- http://rungrawin-itt.com/userfiles/files/ditenutobiwefalawutig.pdfIn PDF document text
- http://chapelguild.com/images/usr/fotedebomizomani.pdfIn PDF document text
- http://ukonlinedirect.com/userfiles/files/92149614413.pdfIn PDF document text
- http://dobrasekacka.cz/userfiles/file/munuzepi.pdfIn PDF document text
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/161611a1de35a8---16106912774.pdfIn PDF document text
- http://nattuvaartha.com/assets/ckfinder/core/connector/php/uploads/files/86071357984.pdfIn PDF document text
- http://020tzs.com/baige/images/userfiles/file/bejasitidexi.pdfIn PDF document text
- https://cnn-logistics.com/asset/files/vawevoli.pdfIn PDF document text
- http://familie-schiecke.de/images/file/xekobusadewuxukufuda.pdfIn PDF document text
- https://thebillionbottom.com/business_school/uploads/file/14551776153.pdfIn PDF document text
- http://phongkhamthienhoa.vn/images/files/kovovep.pdfIn PDF document text
- https://kcharp.com/ckfinder/userfiles/files/39372050205.pdfIn PDF document text
- http://kingsap.com/file_media/file_image/file/nafoneruwu.pdfIn PDF document text
- http://8njl.com/userfiles/files/61577284972.pdfIn PDF document text
- http://feldbach-tourismus.at/files/vozimix.pdfIn PDF document text
- https://rajaketiga.com/contents/files/radedudukozijobot.pdfIn PDF document text
- https://gegeny.hu/uploads/file/21276760676.pdfIn PDF document text
- https://durimawar.com/contents/files/tugadigezefivamoxudul.pdfIn PDF document text
- http://begemot-rus.com/uploadfiles/file/2021100309261873499.pdfIn PDF document text
- http://fubao.ntgis.com/UploadFile/2021/10/11/file/20211011_100013_120.pdfIn PDF document text
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137a44faf6ea---mekivuwer.pdfIn PDF document text
- http://feedproxy.google.com/~r/MbOu/~3/TSvcnjQ06Jg/uplcv?utm_term=ancient+egyptian+goddess+of+beautyPDF 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_off0000b1bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1BB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c9d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9D2 | 10984 bytes |
SHA-256: aa9573c21b49235d1734fd8ead986f9b5f61aa1c688920ba9ca7eb087815ca41 |
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font_02_sfnt_off0000e31e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE31E | 14776 bytes |
SHA-256: a2ed6187f6024aff3662bdf35986e22595110636fe86e21ec3345cd4202cdc4d |
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