MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains a link farm pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to redirect users to malicious content. The presence of numerous PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM firings indicates a strong focus on external URL redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://bellina.pl/userfiles/file/tisozexasedumidiwigozag.pdf In PDF document text
- https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606e4e0123c34---semibomupujid.pdfIn PDF document text
- https://digireg.nz/upload/87613613662.pdfIn PDF document text
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/h7hvhpmj81skn0a40qjkc67p7j/37120060556.pdfIn PDF document text
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a945801afc5---5233783104.pdfIn PDF document text
- http://ramz-alqassim.com/Files/files/lerupiwanan.pdfIn PDF document text
- http://hopkinshigh62.com/clients/7/77/7764523e397120ad9b09b1da26998858/File/gefegegoxidafeserogi.pdfIn PDF document text
- https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/160792ccbc7faa---disolupumonodanesulorikur.pdfIn PDF document text
- http://kaizenlife.com/ckfinder/userfiles/files/17582882842.pdfIn PDF document text
- http://haohanlegend.com/Uploadfiles/files/xolifimivapexogev.pdfIn PDF document text
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/16089f9de2e578---80032768813.pdfIn PDF document text
- https://aviatroglo.fr/IMG/file/vulosapigogututa.pdfIn PDF document text
- https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b4fc60b2762---10838936307.pdfIn PDF document text
- https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/5d63a48efb3e75e5f47a3ed79cac3730/59450518336.pdfIn PDF document text
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ddadb5b7bda---fojizisug.pdfIn PDF document text
- https://xn--fct8ml6mwue.tw/uploads/files/71784563123.pdfIn PDF document text
- https://pet-fashion.ro/mm/file/bekinofujezepum.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16090d4831e1b5---gidozesiwajikemusiwunewoj.pdfIn PDF document text
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/q6gif60h8okgjd6ba479tqah6f/zinebewovavipuve.pdfIn PDF document text
- https://www.rekalibracija.com/wp-content/plugins/super-forms/uploads/php/files/9640325e3adee95e0f3af498e76ac600/gewutukumovuzixe.pdfIn PDF document text
- http://hzjksj.com/images/upload/File/30096873997.pdfIn PDF document text
- http://adamlegal.com/userfiles/file/83764800876.pdfIn PDF document text
- http://constantemail.com/userfiles/file/162268445763800672032.pdfIn PDF document text
- https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/7cfcde12da6161e325806bf4ccbcfc4f/puwixe.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=adjective+preposition+combinations+list+pdfPDF 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_off0000e0e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0E2 | 11100 bytes |
SHA-256: 4680660110f70fd9c3657f7d2a4e1dc390e90deeaf60713a3c25f5bea0d764b0 |
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font_01_sfnt_off0000fa7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA7A | 16560 bytes |
SHA-256: fbc6f9b14b494b8702a99e3054d8b7bc2d27e79f757f778f6254148dca222ded |
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font_02_sfnt_off00012590.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12590 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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