MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file is identified as malicious by ML classifiers and ClamAV, indicating it's a phishing or trojan distribution vehicle. It functions as a link farm, with numerous embedded URLs pointing to other PDF files hosted on compromised websites, likely to obscure the ultimate malicious destination. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' suggests a tactic to distribute malicious content through SEO poisoning on disposable hosting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9914
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://chothuexeninhbinh.net/data/dulieu/files/wobepe.pdf In PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d351054e68---vowarinaxuvopizene.pdfIn PDF document text
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098189f51cbc---37172560971.pdfIn PDF document text
- https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/c875f405f6b5aff829db569fad60c214/29740790973.pdfIn PDF document text
- https://mariapolis.net/ckfinder/userfiles/files/xugufesutizademixaxo.pdfIn PDF document text
- http://poetische-malerei.de/web/editor/files/zozotetoreleto.pdfIn PDF document text
- http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/7ac3905a9a1e3bfe080be9e97800c810/14209297684.pdfIn PDF document text
- http://mnogonomerov.ru/uploads/file/wopurakegetekasej.pdfIn PDF document text
- https://razredna-nastava.net/files/jefofexi.pdfIn PDF document text
- https://catbasailing.com/upload/fck/file/makesulinugoze.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fffafd2ba3---rakej.pdfIn PDF document text
- https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/fe766c836a69868bd15c9bc43e7f5344/32521808456.pdfIn PDF document text
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160d00de27c040---14956031975.pdfIn PDF document text
- https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160a212230ad2b---zesikimivefitolida.pdfIn PDF document text
- http://parfumerieindex.nl/images/uploads/zokoxavizoz.pdfIn PDF document text
- http://vitrine-prof.com/files/40543532923.pdfIn PDF document text
- https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/161144f91b1a24---belijasixadisixagojiz.pdfIn PDF document text
- https://sherwoodchamber.org/ckfinder/userfiles/files/89024955799.pdfIn PDF document text
- https://northcoteplaza.com/userfiles/file/98967594492.pdfIn PDF document text
- https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608a09be57c88---25229949100.pdfIn PDF document text
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081088110266---wavunekazozon.pdfIn PDF document text
- https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/k68q53jr2tp2pqe1030780m0ea/patasaperoponisuxum.pdfIn PDF document text
- http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607a33a4af789---lovikovaremuloxozok.pdfIn PDF document text
- http://bmhs1963.com/clients/7/72/7286fd37811b7a5dece6e69924e4d5ab/File/71297606876.pdfIn PDF document text
- http://www.bluefashion.cz/ckfinder/userfiles/files/poravetabazunedilab.pdfIn PDF document text
- https://glory-aqua.com/userfiles/file/13757004920.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=comparative+literature+a+critical+introduction+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_off0000c197.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC197 | 10812 bytes |
SHA-256: 082e8f03cf00c392c2c8d76df6eb4d0d363ed2ae3491909773a3346da6ef6499 |
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font_01_sfnt_off0000da87.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA87 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f299.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF299 | 17680 bytes |
SHA-256: c49c8190da7c6867cccd64e994bf3b5f16b0acae5df6ceaf0eca14ceb676922c |
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