MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to compromised CMS upload directories or are hosted on disposable domains, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://happyland-nsk.net/ckfinder/userfiles/files/wuvup.pdf In PDF document text
- http://driscollandgibson.com/images/edit_images/file/59862919148.pdfIn PDF document text
- http://sahamit.net/userfiles/file/wusujidujuxosewa.pdfIn PDF document text
- https://erinmillssmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/jqkea7ohcaac8ikd3g6hof5u65/97582163909.pdfIn PDF document text
- http://mim2010.ru/userfiles/file/jobile.pdfIn PDF document text
- https://bio86.net/fichiers/kipisumokosugimabone.pdfIn PDF document text
- http://sl-light.ru/design/img/upload/file/65832182345.pdfIn PDF document text
- http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ee45ab4ebe---84245690597.pdfIn PDF document text
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/ppsh65aab82mg7di9nqkl6d2fq/bopasigilobo.pdfIn PDF document text
- http://alnadaoil.com/userfiles/file/12905319693.pdfIn PDF document text
- http://remproekt-m.ru/admin/ckfinder/userfiles/files/74769500871.pdfIn PDF document text
- https://www.endthestigmacounselling.com/wp-content/plugins/super-forms/uploads/php/files/8cutvqrh7fdnb1fj2d97phhfon/46131105414.pdfIn PDF document text
- https://ilc.ua/wp-content/plugins/super-forms/uploads/php/files/vl5usj58buohfaas663raott90/koxeluletorirozazut.pdfIn PDF document text
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0bb3b1f51a---26591869694.pdfIn PDF document text
- https://pluviaterra.mx/wp-content/plugins/super-forms/uploads/php/files/8f86dfdc64bf81f53ca41513e640e9ff/6095371797.pdfIn PDF document text
- http://vivatbacchus.hu/files/file/44224693977.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=style+telugu+movie+mp3+songs+downloadPDF 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_off0000e7d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7D0 | 11248 bytes |
SHA-256: 3ebf13c1b495abd66eb3eab819c38cdf48efe31b7b440b1454d357f8cee3b51a |
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font_01_sfnt_off0001020c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1020C | 16504 bytes |
SHA-256: 90aef0962d59a22922e96b87fb2438f31a664036f6ef36c7bf08dbac93c739df |
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font_02_sfnt_off00012d10.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D10 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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