MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to potentially compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution scheme. The PDF structure and numerous external links are consistent with techniques used to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://store-connector.com/_upload_bilder/_filemanager/file/4705280771.pdf In PDF document text
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16136d38a95c55---lodotoroge.pdfIn PDF document text
- http://msslink.ru/userfiles/files/90880017764.pdfIn PDF document text
- http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16141420103915---91691263840.pdfIn PDF document text
- http://world-green-hope.com/uploads/files/53031123352.pdfIn PDF document text
- http://nhatnguyen.vn/media/ftp/file/kowobex.pdfIn PDF document text
- http://amy-tsai.com/images_express/userfiles/files/vifimositadezed.pdfIn PDF document text
- http://monthclean.com/uploads/files/202108311720143935.pdfIn PDF document text
- http://cw-cut.com/uploads/file/87841980404.pdfIn PDF document text
- https://greenways.at/userfiles/file/rimapakajasadiv.pdfIn PDF document text
- http://csa.china-led.net/static/editor/ckeditor/ckfinder/upfile/files/vitusi.pdfIn PDF document text
- https://idd.no/ckfinder/userfiles/files/18057791999.pdfIn PDF document text
- http://goforthegreengolfpools.com/userfiles/file/lujutitomega.pdfIn PDF document text
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/dcdpdbatlre3l2lucs70bm2fff/68935459915.pdfIn PDF document text
- https://dacola.com/upload/files/mudifuzuzofageta.pdfIn PDF document text
- http://vanprodukt.cz/UserFiles/File/33316990580.pdfIn PDF document text
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613210d253eac---sokeza.pdfIn PDF document text
- http://hykylalumni.org/userfiles/7804756936.pdfIn PDF document text
- https://searchlink.org/userfiles/file/xewowakawuvujerokapu.pdfIn PDF document text
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613920534fa2a---sesimujeka.pdfIn PDF document text
- https://nutritie-metabolism-sanatate.ro/app/webroot/files/userfiles/files/19339097110.pdfIn PDF document text
- http://secretlove.ch/ckfinder/userfiles/files/fowuvak.pdfIn PDF document text
- http://www.cerathai.com/image/upload/File/liwosepe.pdfIn PDF document text
- https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613f2b97e2b39---kazokevezefekedefasadave.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=truck+simulator+usa+evolution+androidPDF 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_off0000d9aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9AA | 17524 bytes |
SHA-256: 2d3f1a6f195a1f007f0ad5269a129becae7efe2de5af9b573ab1555ff7fe97e8 |
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font_01_sfnt_off00010746.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10746 | 10752 bytes |
SHA-256: 83e7c90bd1f9a1f59dec538049541b6868674329a2c2008a9db658dde532d6e4 |
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font_02_sfnt_off00012010.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12010 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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