MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains a link farm pointing to multiple compromised WordPress sites, suggesting an attempt to distribute malicious content or phish users. The presence of embedded URLs and the nature of the heuristics indicate a likely spearphishing attachment used to lure victims to these external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/19e736b37ac18e47de1ec7aca1fb234c/rikomumitosurawukovidepuj.pdf In PDF document text
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce5a46dd79---82937375071.pdfIn PDF document text
- https://kalyna.ua/sites/default/files/userfiles/file/39278648170.pdfIn PDF document text
- https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/1978fa77b97561274425e95807c8eb6b/tewoninibawome.pdfIn PDF document text
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16076e19d1cd4a---79922488665.pdfIn PDF document text
- http://tantex.org/tantex/tantexuserfiles/file/peleni.pdfIn PDF document text
- https://addsfly.com/userfiles/file/1140229429.pdfIn PDF document text
- https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d1ba27dc3b---93353171839.pdfIn PDF document text
- http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cf8045b42f---vujut.pdfIn PDF document text
- https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/732357eb66a24d0f670d2c9a3b02c5d9/suwix.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/5c0a07515c09fe5e1ecd278defff3a08/17608226503.pdfIn PDF document text
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160973360d2181---mixenaruxaporokosijenimot.pdfIn PDF document text
- https://daquin-ferriere.fr/userfiles/file/21653610848.pdfIn PDF document text
- http://montpellier-business-plan.eu/mbp/upload/images/images/upload/ckfinder/98317649657.pdfIn PDF document text
- https://realestateconnect.biz/wp-content/plugins/super-forms/uploads/php/files/rk01dpl6s3heg28a9k0ep22ed3/34325008594.pdfIn PDF document text
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160713c74a5a8a---losogozijigeraradinogugi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=paramount+plinth+english+book+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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e11c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE11C | 5660 bytes |
SHA-256: 8792dce81c74aa63a88a84405da892f52a4c1b1fc4ddce6ba2548cb9899827e1 |
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font_01_sfnt_off0000f422.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF422 | 11208 bytes |
SHA-256: f4f662e18715dc2c24b8252f18cae9baa471da10ccb88ed6b63a381a46077c1f |
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font_02_sfnt_off00011a7e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A7E | 6692 bytes |
SHA-256: 265320aaa5f7a48f30cb176910f7bd22db24a7e492a2247273532949ca726a4a |
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