MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by a machine learning classifier and ClamAV. It contains a large number of embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to distribute malicious content or phish users. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL distribution strongly indicate a malicious intent, likely related to phishing or malware delivery via embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://inwebjor.ru/uplcv?utm_term=how+to+simmer+a+sauce PDF link annotation
- https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/53bab855d04884f53f47134f78e859fb/sotelirubemadufemozibe.pdfIn PDF document text
- http://studioboscono.it/userfiles/files/2144914594.pdfIn PDF document text
- http://a-kamen.com/userfiles/file/jegevunegoniwifurumiwez.pdfIn PDF document text
- http://vidol.nl/userfiles/file/xopegekusujuzelatuduv.pdfIn PDF document text
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/16150f2fec584f---5177852875.pdfIn PDF document text
- http://xn--80aer5aza.xn--80aai5amepo3c7b7a.xn--p1ai/ckfinder/userfiles/files/besodisosakes.pdfIn PDF document text
- http://phyllisrubensteinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/73011343965.pdfIn PDF document text
- http://mastrodibaglio.it/userfiles/files/53002032406.pdfIn PDF document text
- http://mengnuanua.com/app/webroot/files/files/20707992351.pdfIn PDF document text
- http://air-ned.com/uploads/files/93613290645.pdfIn PDF document text
- http://ryanoomen.nl/uploadimages/files/supowisunotexolapoxodiwof.pdfIn PDF document text
- http://kukdae.com/files/fckeditor/file/98273383299.pdfIn PDF document text
- https://asiapharma.la/files/files/78833711625.pdfIn PDF document text
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16131726b04e92---paputuwivemoxotozej.pdfIn PDF document text
- http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/91200f6cf4917bc5a6e8fe046c0b7b47/31306161180.pdfIn PDF document text
- https://atkarisuli.hu/userfiles/file/debafet.pdfIn PDF document text
- https://legend-chang.com/UserFiles/files/74089601632.pdfIn PDF document text
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146337c6ded6---27199608194.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614020c00cfe0---zedalipodurovapevetetonu.pdfIn PDF document text
- https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/cddef4gmof5fme7lsjk73eb5pg/6628993492.pdfIn PDF document text
- http://evpltravel.com/xv_image/file/lenidaz.pdfIn PDF document text
- https://cornwallstaffagency.com/userfiles/file/12683138285.pdfIn PDF document text
- 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_off0000d99d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD99D | 18956 bytes |
SHA-256: fa524f9df8a82dee3e21652c69272d5d4a6b6f1ddcbd06f53ea614a89be9deaa |
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font_01_sfnt_off00010a84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A84 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001229b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1229B | 10420 bytes |
SHA-256: 7ac273ad378a13a5b8d7dd653830e3f0f89f40ef4464def24ee028d0f78d7739 |
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