MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as a link farm, with many distinct hosts and disposable hosting detected. The ML classifier and ClamAV also identified it as malicious, specifically a phishing trojan. The embedded URLs likely lead to further malicious content or phishing sites, aiming to deceive the user into clicking them.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://kaies.net/upfiles/210907192101329215yt838p.pdf In PDF document text
- http://hzbmsj.net/images/upload/File/zuwajo.pdfIn PDF document text
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/ef2mtic7vf9rus7qeqinahffj2/70006290553.pdfIn PDF document text
- http://constantcontinuity.com/membership/data/files/kuzeza.pdfIn PDF document text
- https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/14423389389a5439e892f3574f57ddc0/livodelefokati.pdfIn PDF document text
- http://globalcenterhotels.com/bot/ckfinder/uf/files/bijonuzuvetazudo.pdfIn PDF document text
- http://scea.edu.mn/ckfinder/userfiles/files/63223093047.pdfIn PDF document text
- http://anhuishangbiao.com/upload_fck/file/2021-9-1/20210901225910201508.pdfIn PDF document text
- https://www.hermanosvalerorecio.com/ckfinder/userfiles/files/95788115831.pdfIn PDF document text
- http://patronusalapitvany.hu/public_html/upload/rikogilumaloza.pdfIn PDF document text
- https://pepsima.biz/files/file/sitawowupiziz.pdfIn PDF document text
- https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/161366d14495b8---gomoxes.pdfIn PDF document text
- http://cariboohose.com/userfiles/file/sunedij.pdfIn PDF document text
- http://yibetter.com/data/files/7985486257.pdfIn PDF document text
- http://yaqeen-eg.com/userfiles/file/gopaxoduzebuvafa.pdfIn PDF document text
- http://marinaxaraes.com.br/ckfinder/userfiles/files/97339294829.pdfIn PDF document text
- http://www.teeintact.com/admin/fckeditor/editor/filemanager/connectors/php/img/file/21697919992.pdfIn PDF document text
- https://darkoyunpin.com/calisma2/files/uploads/nikam.pdfIn PDF document text
- https://alident.centralcms.cloud/galeria/files/xusibapov.pdfIn PDF document text
- http://www.valathors.com/ckfinder/userfiles/files/nafavukexe.pdfIn PDF document text
- http://elencostruzioni.it/userfiles/files/lemifuwiroburuke.pdfIn PDF document text
- http://vinhomeshaiphong.net/app/webroot/img/files/96364414996.pdfIn PDF document text
- http://imi.vc/upload/files/kawisewiwego.pdfIn PDF document text
- https://radiosmile.hu/upload/file/90032426613.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=canon+in+d+classical+guitar+sheet+musicPDF 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_off0000b9da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9DA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d1ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1EC | 16640 bytes |
SHA-256: 0ce4004f98d2f21f020d50039da03b9ea1dd04f77e0c8d4bef1b37ac063a9074 |
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font_02_sfnt_off0000fd5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD5B | 10948 bytes |
SHA-256: 0728776bf6a250da595933938305803239e843d2af0c878d55d4fb969acb284d |
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