MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous URLs pointing to compromised websites, specifically WordPress uploads. These links likely lead to further malicious content or phishing attempts, indicating a multi-stage attack. The PDF structure itself does not contain readable content, suggesting its primary purpose is to host these external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/qisq34iumea3hs0sh9p1p4jgt1/91947666216.pdf In PDF document text
- http://otczenacts.com/media/files/xalewufibubetefev.pdfIn PDF document text
- http://nature-revive.org/files/file/66854965976.pdfIn PDF document text
- https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/02288f1972152d20b2faca8c4ceb2640/37130901568.pdfIn PDF document text
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1608e35cf35350---febesoxovu.pdfIn PDF document text
- https://tahitotfaluovodak.hu/ckfinder/userfiles/files/xaxelolokagosuvirerefam.pdfIn PDF document text
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c595188245b---71204920697.pdfIn PDF document text
- http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b3a4e118535---weduborotebutunokowovobut.pdfIn PDF document text
- http://szamosiszerviz.hu/feltoltott/files/89498940903.pdfIn PDF document text
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cf8b41d700---kuzulilerakirodasarifazo.pdfIn PDF document text
- https://eyescare.vn/app/webroot/upload/ckfinder/files/tonagubabobenokix.pdfIn PDF document text
- http://steps4cancer.org/clients/a/a7/a78c374070a178914b502abaf3db82b8/File/lugilalavupabodelo.pdfIn PDF document text
- http://belst.by/upload/file/65889714823.pdfIn PDF document text
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609934595fb50---4942890662.pdfIn PDF document text
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/6d3bef03b079e7093e61ae0d1532b25d/4177349136.pdfIn PDF document text
- http://circolosilverblufitnessclub.eu/userfiles/files/sexaze.pdfIn PDF document text
- http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1c5e8e23e6---24723797699.pdfIn PDF document text
- https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/cjjundnvcnfilu2s1s9oud0nl9/64263993599.pdfIn PDF document text
- https://coimbatorepressclub.com/FCKeditor/userfiles/file/64618509025.pdfIn PDF document text
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/16078e587c8fa0---6119856334.pdfIn PDF document text
- http://myjacksonfamilyreunion.com/clients/e/e2/e2167ce47089e9b789d53270b7cccc99/File/97192782293.pdfIn PDF document text
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070f14e6475e---30388271261.pdfIn PDF document text
- http://ahchala.com/img/file/vonetopumodimoboxiritu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=golf+6+gti+cabriolet+for+salePDF 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_off0000f281.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF281 | 18104 bytes |
SHA-256: 82be15417fb5dce13a55881da77ada4d841ba2c9f4325b4af7f5fd645a204ab6 |
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font_01_sfnt_off000121bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121BD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000139d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x139D4 | 10756 bytes |
SHA-256: 96d81c08bde79f4debe8e652372266aa8c210bbfe210aadc7897063b083ccec9 |
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