MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many of which point to compromised WordPress sites or disposable hosting, indicating a phishing or redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to lead the user to a phishing page or download further malware. The embedded JavaScript is likely used to facilitate the redirection or obfuscate the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://linker.tw/files/9480055459.pdf In PDF document text
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/161380879dcec7---lukokozim.pdfIn PDF document text
- https://triangle-electronics.com/assets/userfiles/file/82666434728.pdfIn PDF document text
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ee276903b07---74165893250.pdfIn PDF document text
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072d6e923565---11270700472.pdfIn PDF document text
- https://briljant-maleri.se/UserFiles/files/lovirelugunenozewin.pdfIn PDF document text
- https://ezastupitelstvo.sk/editor_uploads/system/files/83918644622.pdfIn PDF document text
- http://liebherr-tr.com/userfiles/file/59378823188.pdfIn PDF document text
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d3772ea71c---kerumosatureni.pdfIn PDF document text
- https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/e53e7bf6ab82860df31073010bd0f9ea/98251951830.pdfIn PDF document text
- http://lalinpress.es/ckfinder/userfiles/files/simanibazufo.pdfIn PDF document text
- http://showplus.ae/userfiles/files/40562567893.pdfIn PDF document text
- https://alrukn.co/userfiles/files/rofesi.pdfIn PDF document text
- https://hongmao.tw/uploads/files/202108231612438634.pdfIn PDF document text
- https://mirrorlink.com/public/files/files/taxovu.pdfIn PDF document text
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/160e91d2ed415a---87330122153.pdfIn PDF document text
- http://ooexperience.be/assets/Image//files/vonijobubunimugotetobunij.pdfIn PDF document text
- http://sissonne.hu/editor_up/pazavumepimoladimef.pdfIn PDF document text
- http://bluecars.pl/userfiles/file/82453211838.pdfIn PDF document text
- http://artepcb.com/upload/files/10623804675.pdfIn PDF document text
- http://burningspearmarketplace.com/js/ckfinder/userfiles/files/67889436118.pdfIn PDF document text
- http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/160e281256e7ad---99406040508.pdfIn PDF document text
- https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607443027d0f1---dubavexizu.pdfIn PDF document text
- http://tofuyatogo.com/uploads/files/lifogememo.pdfIn PDF document text
- https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6701e4683f---57460522117.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=vernier+calipers+practical+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_off0000e4d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4D5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fcec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCEC | 10460 bytes |
SHA-256: ff4bbb2231cadd98bec2fc3c202e3fb386d18c5aac31c6a63a04d3f1768d6e7e |
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font_02_sfnt_off000114c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114C7 | 18432 bytes |
SHA-256: 15dcfdb8ea81900fea491836bb472309b6842219a2218c42a793dfab42c2bf7b |
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