MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The PDF structure and numerous external URIs are indicative of a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
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://ymmicro.com/files/files/78584986578.pdf In PDF document text
- https://cristalparkhotel.com/ckfinder/userfiles/files/75551317445.pdfIn PDF document text
- http://salondebellezaanamariaromero.es//ckfinder/userfiles/files/gunenuritixorijikip.pdfIn PDF document text
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/1607158b98c7a0---22673828224.pdfIn PDF document text
- http://btc-ltd.com/upload/file/texavusefujuj.pdfIn PDF document text
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ec9ecc8dae9---76178139633.pdfIn PDF document text
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c8e694fdc3---21784940769.pdfIn PDF document text
- http://ccforum.kr/uploads/file/1623092229.pdfIn PDF document text
- https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/14599135923968c969f546f82361a9d0/4608345390.pdfIn PDF document text
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16123a8a650b22---25778517185.pdfIn PDF document text
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b826d748b65---jiberifudatopabowit.pdfIn PDF document text
- https://vandolderskb.com/images/usr/5220986225.pdfIn PDF document text
- https://plswa.com/wp-content/plugins/super-forms/uploads/php/files/9f1233b0e925fe41bc59f7642eaab68d/31613730439.pdfIn PDF document text
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e50db4efeb---loduvasigofebuwumeg.pdfIn PDF document text
- http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a96784632c8---kukezawotipuruzivunazezi.pdfIn PDF document text
- https://phucatgarment.com.vn/ckfinder/userfiles/files/80241101787.pdfIn PDF document text
- http://dotacjedlaoze.pl/userfiles/file/lusaji.pdfIn PDF document text
- http://northstarbaptisttyler.com/clients/a/a4/a4b4c2e389351fb2dee96c3f727c6a57/File/36249679741.pdfIn PDF document text
- https://www.kalirich.com/wp-content/plugins/super-forms/uploads/php/files/rnir5in2kitkuv801r9ehde3t5/vojumererux.pdfIn PDF document text
- http://kiemdinhcan.com/Images_upload/files/fitewowemididu.pdfIn PDF document text
- https://doellefjelde-mussemarked.dk/images/newsmail/file/lufawede.pdfIn PDF document text
- https://mobilpetrol.olajpark.hu/files/files/12925815055.pdfIn PDF document text
- https://666666.vn/upload/fck/file/69491730049.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=grand+rapids+secretary+of+state+appointmentPDF 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_off0000e51a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE51A | 17704 bytes |
SHA-256: dc04cb1c5c3b152545fb4cea2862583a755fda4b5d533b30b880b89385b61dc2 |
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font_01_sfnt_off000112eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112EB | 10888 bytes |
SHA-256: e4fcc5b0b30576231c37344682df35419b345fd1adae20d5aca52b1394fda28a |
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font_02_sfnt_off00012c27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C27 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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