MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code within documents. The presence of numerous external URIs, many pointing to disposable hosting and compromised CMS uploads, indicates a link farm designed to obscure the ultimate destination, likely a phishing page or malware download. The ClamAV detection and ML classifier strongly support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://blgjad.com/upload/files/27200931738.pdf In PDF document text
- https://tolgyesvolgy.hu/userfiles/file/6921767728.pdfIn PDF document text
- https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/0384b7144a0ba07c075326d0fb8df5e5/25266661463.pdfIn PDF document text
- http://remaining-mc.de/userfiles/file/6706282505.pdfIn PDF document text
- http://futsalcb.cz/picture/vtextu/file/devuzufepenomujujurok.pdfIn PDF document text
- http://mybyblos.com/userfiles/file/fiviwuwiranebokiwed.pdfIn PDF document text
- http://artecgroupservices.com/imagenes/file/91652899602.pdfIn PDF document text
- http://easy-sleep24.de/shop/images/editorfiles/file/93992757577.pdfIn PDF document text
- http://robwalker.net/fckupload/file/53184104435.pdfIn PDF document text
- https://ms02bet.net/contents/files/37980907222.pdfIn PDF document text
- http://ministerium.pt/files/badoviva.pdfIn PDF document text
- http://albarossa.jp/js/upload/files/603536145.pdfIn PDF document text
- https://vildmarksjagt.dk/userfiles/file/pifobabe.pdfIn PDF document text
- http://geoass.eu/userfiles/files/33453661923.pdfIn PDF document text
- https://b2cexpressdemo.com/userfiles/file/perawutoda.pdfIn PDF document text
- https://gkia.org/kingkong/userfiles/files/diwodixidagu.pdfIn PDF document text
- http://hondasushi.com/uploads/files/tepeverivi.pdfIn PDF document text
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613a827936c7d---kiliz.pdfIn PDF document text
- http://bargiel.com.pl/ckfinder/userfiles/files/paxewalepofixaru.pdfIn PDF document text
- http://ppfi-online.com/userfiles/file/97915574708.pdfIn PDF document text
- https://shidoremicrosys.com/media/duwujabagezotutujuluvi.pdfIn PDF document text
- http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133534b31201---82314352036.pdfIn PDF document text
- https://srmhomes.com/images/bulk_images/files/dusenafubetu.pdfIn PDF document text
- https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/b55202719d141072906e2af66e56947a/figiwijigotelaturerapu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=my+hero+academia+season+1+episode+1+subPDF 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_off0000be7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE7A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d68c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD68C | 19648 bytes |
SHA-256: 543e64a45bcefa9c8eff00b494609b79ddeb653ef1cd6e74fcee8d84b52c8264 |
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font_02_sfnt_off0001099f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1099F | 11032 bytes |
SHA-256: 9ea01e4b6a48aba385bf27e563b6a02aafcd485e4df14ccd164ad2849c147ef9 |
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