MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS upload directories. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure suggests an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://quickvideo.nl/userfiles/file/8607767160.pdf In PDF document text
- https://ipcare.nl/wp-content/plugins/super-forms/uploads/php/files/3sihoju61m9deuhd5uvni8e9te/kumifa.pdfIn PDF document text
- http://architects-desk.com/uploadsfile/18928954388.pdfIn PDF document text
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b05bbd87abe---31142304174.pdfIn PDF document text
- https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c49790ab44c---sasutizeberibajemebil.pdfIn PDF document text
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/160986e0154954---25922293416.pdfIn PDF document text
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/8fafa1a74adea485fb0666fb50d58137/jefazosopefabufago.pdfIn PDF document text
- http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16099d74762d39---telewobuzikoloputibixija.pdfIn PDF document text
- http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160c302b4c36f6---vuzazebitekavam.pdfIn PDF document text
- http://xn----7sbakif2a3azdub.xn--p1ai/admin/ckfinder/userfiles/files/5507002908.pdfIn PDF document text
- http://terminsk.by/pics/files/2156332219.pdfIn PDF document text
- http://www.deopendeur.org/imgUser/file/fojosopamodi.pdfIn PDF document text
- https://lamthong-marchph.com/piceditor/file/39200806871.pdfIn PDF document text
- https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/1b466f92c0c1bb45f3176dcd85ea656b/bobogisuxulaxuju.pdfIn PDF document text
- http://aydinservis.com/ckfinder/userfiles/files/59642585382.pdfIn PDF document text
- http://ankamet.com/userfiles/file/64615751584.pdfIn PDF document text
- http://haniltm.kr/upfiles/editor/files/xovufononokuvozum.pdfIn PDF document text
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/16081e2f378dbb---gumixasag.pdfIn PDF document text
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094aff94a97b---94108122615.pdfIn PDF document text
- https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/f92lpo6rokpacuc7bih3ac3mgk/43350544143.pdfIn PDF document text
- https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/t9gipo8d3rkdom32aau0hnt9th/ragogenajevabupipev.pdfIn PDF document text
- https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/o8ujvtg9vo6pquc8pfkrhv8d91/18271895729.pdfIn PDF document text
- https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/a6c4b25769da10e06c55aa946108fea2/gepozawubaxa.pdfIn PDF document text
- http://agiusfuneraldirectors.com/files/file/87325279218.pdfIn PDF document text
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f54a94fce3---64160166077.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=your+cognitive+bias+isPDF 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_off0000f6bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6BB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010ecd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ECD | 18088 bytes |
SHA-256: 8f0e1b5c11acc187ea027725f22b341ac8b10228433fe570e059f687f938d62e |
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font_02_sfnt_off00013d41.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D41 | 10648 bytes |
SHA-256: 6ba204afdf554a731c62885bfde48995404764d2bb2d2dee5806773ae5153899 |
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