MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised WordPress sites, suggesting a link farm or phishing lure. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this, indicating the document is designed to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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 https://archism.ru/uplcv?utm_term=correction+lens+for+astigmatism
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609461e4cd083---64167115415.pdf
- https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609aa9b8d6048---30934704555.pdf
- http://princeworldwide.com/multimedia/userfiles/file/98242336452.pdf
- http://instant-image.net/UserFiles/Site/File/zebasuseg.pdf
- https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/75cc05b28019eb0f1aad8f812bdc9cb8/zedusagosedoj.pdf
- http://hzqzg.com/d/files/1803998280.pdf
- http://graylegalservices.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/99966476999.pdf
- http://arredamentoambienti.it/img/file/83229142331.pdf
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607c4c933f36f---luwijisonag.pdf
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095d4386c469---22275737780.pdf
- http://ruilong-ironwork.com/CKEdit/upload/files/7481877620.pdf
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a4e6a9a8fe9---tavolodefakoxe.pdf
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c230f02a0a7---gutolemijikuwekuralimu.pdf
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/14c9ab3e29f95c674ed34b008270c131/16639580950.pdf
- http://hit-air.pro/ckfinder/userfiles/files/xevarilifawijezek.pdf
- https://avonsteel.com/UserFiles/file/zevirobiginewiwufijomaka.pdf
- http://onnetsolution.in/userfiles/file/94263277361.pdf
- https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/b33387bd09ad56921c28f144b667477b/satowifefuxufudinoxewokum.pdf
- http://henghuitong.com/jingkelun/userfiles/files/20210617204807.pdf
- http://payassistinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084d41d328bd---vorekonukokokuwutupe.pdf
- https://aduanaldelvalle.mx/userfiles/file/xojad.pdf
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/aa7l732q89jn421caf56du1eu4/23920193973.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ee74.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE74 | 16792 bytes |
font_01_sfnt_off00010686.bin39ebfb3d061a3d1ebbc2caceba6fac4f050b75d7487ab0f77c631bf64cb73633 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10686 | 17112 bytes |
font_02_sfnt_off0001337f.bin66497f1a2966e989618af9358c470135b98d2fa7bef6a32afe080471039fb2a5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1337F | 10712 bytes |
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