MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for malicious PDFs to execute code. The heuristics indicate that the PDF acts as a link farm, pointing to compromised WordPress uploads and disposable hosting, likely to host phishing pages or further malware. The ML classifier and ClamAV detection strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://tourpon.kr/FileData/ckfinder/files/20210905_7635F93DD8D12743.pdf In PDF document text
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/16138900ce4882---wepafa.pdfIn PDF document text
- http://robfredo.com/userfiles/file/20859685457.pdfIn PDF document text
- https://eagleegg5k.com/ckfinder/triplebuserfiles/file/betazikabixuraboxevoriraw.pdfIn PDF document text
- https://grupo.iberia.es/js/ckfinder/userfiles/files/11792766415.pdfIn PDF document text
- http://ardeche.proximeo.com/ckfinder/userfiles/files/namasiruvavo.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cfbb54bf52---84430700953.pdfIn PDF document text
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/16139fc1362dbe---vutarogikogilediwiduver.pdfIn PDF document text
- http://coming-c.com/userfiles/file/73908714084.pdfIn PDF document text
- http://esrafisek.com/images_upload/files/95635044848.pdfIn PDF document text
- http://hennel.hu/sources/elemek/file/32122809615.pdfIn PDF document text
- http://hoadon-dientu.net/images/files/82404022974.pdfIn PDF document text
- http://adbuilder.at/ckfinder/userfiles/files/70430217155.pdfIn PDF document text
- http://lovelyspa.net/ckfinder/userfiles/files/reviw.pdfIn PDF document text
- http://shahnawazonline.com/uploads/files/tovewikajujumi.pdfIn PDF document text
- http://dongsimkindergarten.com/upload/files/vutigifaxilila.pdfIn PDF document text
- http://safeabortionnepal.com/userfiles/file/83233647234.pdfIn PDF document text
- http://saigonradio.com/userfiles/file/kinewonijuwoma.pdfIn PDF document text
- http://warmistore.com/userfiles/file/difemosadodotagutanisi.pdfIn PDF document text
- http://aasghsflqsae.handylover.com/upload/files/73614020555.pdfIn PDF document text
- https://sibservis.com/ckfinder/userfiles/files/24739705054.pdfIn PDF document text
- http://oguzlarotomatiksanziman.com/depo/sayfaresim/file/bumenuna.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=pozorrubio+pangasinan+zip+codePDF 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_off0000c74c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC74C | 17896 bytes |
SHA-256: e3ec6ef94e0af429adfd095eacc539fb62167a865d6f20122fb1fdcb09453cd5 |
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font_01_sfnt_off0000f5df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5DF | 10844 bytes |
SHA-256: 72839a4165357dd35932f6341ab8291fb376c1e3b739d5bd4b624b34ead53cd8 |
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font_02_sfnt_off00010ea3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EA3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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