MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URLs, many of which point to compromised WordPress sites, suggesting a link farm used for SEO manipulation or to host malicious content. The document body is heavily obfuscated and unreadable, providing no direct user-facing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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 https://erinmillssmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/0ddm2t8570bqki1qejgd99ure5/26779730879.pdf In PDF document text
- https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/73bc4f1dabdd15977709ea1d71bd9a88/1216047118.pdfIn PDF document text
- http://posekatzahradu.cz/files/file/kubisul.pdfIn PDF document text
- http://dienlanhlongan.com/upload/files/7311721461.pdfIn PDF document text
- http://verkaufs-akademie.com/userfiles/file/zojiwikogenekamapadewa.pdfIn PDF document text
- http://klick-tipp.at/ckfinder/userfiles/publics/files/19683144556.pdfIn PDF document text
- https://nepalonetours.com/userfiles/files/tutoli.pdfIn PDF document text
- http://remont-elektro.eu/archiv/file/gelawubuva.pdfIn PDF document text
- http://china-engine.net/ckfinder/userfiles/files/49665898901.pdfIn PDF document text
- https://kueapem.com/contents//files/bawetoxud.pdfIn PDF document text
- http://liddellgaryfamily.com/clients/863293/File/mibejasizugibefabuvoliz.pdfIn PDF document text
- https://blackknowledge.com/wp-content/plugins/super-forms/uploads/php/files/b2502f68a5f8c029fe60443702ff374f/85094129617.pdfIn PDF document text
- http://asbufestival.com/uploads/FCK_files/file/zesumufexejawija.pdfIn PDF document text
- http://axwelindia.com/uploads/rekebuzawej.pdfIn PDF document text
- http://maychamsocda.vn/images/userfiles/file/83882276644.pdfIn PDF document text
- http://webs123.com/userfiles/file/53876337499.pdfIn PDF document text
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160b7ff8bea78d---59190983361.pdfIn PDF document text
- http://kangs78.com/clients/66216/File/81611325205.pdfIn PDF document text
- http://kinocosmik.ru/sadm_files/wetalaronu.pdfIn PDF document text
- http://bloomx.com/sites/all/sites/bloomx.com/files/66596864001.pdfIn PDF document text
- https://palcev.ru/userfiles/file/33354808678.pdfIn PDF document text
- https://spheresignal.com/app/webroot/userfiles/files/vozevijojonubunekebevigiz.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=basketry+merit+badge+worksheetPDF 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_off0000c6fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6FA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000df11.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF11 | 11032 bytes |
SHA-256: 6d0faf06e67aa6ebc432dccfa43964178454909b822e3f2d990494ea963bbac0 |
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font_02_sfnt_off0000f8a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8A8 | 17624 bytes |
SHA-256: 32b246963da173ad99c5cd1c5456e1c803e9016df8e090caae14e90304790e8d |
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