MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to obscure malicious destinations. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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://skupka54.ru/upload/m/37608796652.pdf In PDF document text
- http://barrospizzadb.com/uploads/files/1005148318.pdfIn PDF document text
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f79885ed3f4---95802771637.pdfIn PDF document text
- http://lblussana.it/images/file/zejadom.pdfIn PDF document text
- http://carrasvilla.es/uploads/files/ligixu.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1b241c8f50---15447567245.pdfIn PDF document text
- http://lateonsettay-sachs.org/userfiles/file/taweramigir.pdfIn PDF document text
- https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/761962c86d5382246a2ce3a3f645cb2e/57816532681.pdfIn PDF document text
- https://musikkursus.dk/userfiles/file/nexusonuwer.pdfIn PDF document text
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/b6857b71cc660bc452efac2575ea23c3/23496671440.pdfIn PDF document text
- https://cdmsig.com/ckfinder/userfiles/files/turokidosemapagal.pdfIn PDF document text
- http://drukarnia-skawina.pl/app/webroot/media/files/wejosuketatur.pdfIn PDF document text
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160786459e39df---7286894289.pdfIn PDF document text
- http://bydnjl.com/userfiles/files/5300210424.pdfIn PDF document text
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160806a1e69b9b---4158816209.pdfIn PDF document text
- https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/f90c564363faee63287e9fb64a0c4402/75184074219.pdfIn PDF document text
- http://kimyasaldubeller.com/upload/ckfinder/files/3190359016.pdfIn PDF document text
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c65dbc3a0b7---49919445862.pdfIn PDF document text
- https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/t4s36akk56v2e5ieq9vkiuroq8/denomitoloraxumujujex.pdfIn PDF document text
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098b8b89ed18---80597767830.pdfIn PDF document text
- https://menuiserie-sainte-anne.fr/userfiles/file/nunugoxorapemege.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=ulcerated+squamous+mucosaPDF 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_off0000eba2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBA2 | 16188 bytes |
SHA-256: 4e27277bc67059bfcc0d1ab7dafdf8c7b4b7f1eb72268def0bae20aadbcfd8cd |
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font_01_sfnt_off00011585.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11585 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012d9c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D9C | 10588 bytes |
SHA-256: 926f8d53669395f05fe0bfa77a6239f9cbcf19098de7327b92ac24a4756675c6 |
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