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, many pointing to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The PDF structure and embedded links are consistent with phishing or malware distribution campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/d8c01557a90944e4798b2859038ece0c/rubatexik.pdf In PDF document text
- https://appchecar.com/ckfinder/userfiles/files/pokitamafonenafasozaken.pdfIn PDF document text
- https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a39d650327c---naxefovabejapojozomu.pdfIn PDF document text
- http://cuanhomkinhtoanthang.com/media/file/17840173326.pdfIn PDF document text
- https://call-life.com/ckfinder/userfiles/files/binarufitagewekibakuwepo.pdfIn PDF document text
- http://dnepropress.net/files/file/95008800165.pdfIn PDF document text
- http://ros.by/ckfinder/userfiles/files/wetowejatif.pdfIn PDF document text
- https://thesaddlebank.com/wp-content/plugins/super-forms/uploads/php/files/453k3eoohaq7j0uha5vknjh8ip/36659316747.pdfIn PDF document text
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/3851103f42a86c9a8564fc8fbe1208a6/29265780818.pdfIn PDF document text
- http://www.sempresaude.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a14c12e4714---92954097891.pdfIn PDF document text
- https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e48b842cd0---67002584043.pdfIn PDF document text
- http://abcbyspu.net/ckfinder/images_store/files/37215504650.pdfIn PDF document text
- https://arerp.kr/data/file///91791609675.pdfIn PDF document text
- http://www.sospapa24.com/lib/ckfinder/imgupload/files/26750603307.pdfIn PDF document text
- http://healthywithhart.com/res/file/9020358001.pdfIn PDF document text
- http://slsnn.ru/content/files/bovudivasazurazorodosi.pdfIn PDF document text
- https://soudurelauziere.com/upload/editor/file/15289568134.pdfIn PDF document text
- https://olterus.net/contents//files/suvareperoj.pdfIn PDF document text
- http://sakem.org/userfiles/files/bejukosevekoj.pdfIn PDF document text
- http://suseefinance.com/userfiles/file/36921343146.pdfIn PDF document text
- https://imotrading.com/images/userfiles/kojobomofovufoxijakida.pdfIn PDF document text
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/liinem522kp4civm1qhgqifctq/jukonudaditoxab.pdfIn PDF document text
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/304885ec5ea1c927c36ff5b16647a75b/30641572936.pdfIn PDF document text
- https://giriconsultancy.com/content_files/files/50744835560.pdfIn PDF document text
- http://accomplishtheimpossible.com/userfiles_ati/file/10118563852.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=answer+sheet+toeic+iig+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_off0000d307.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD307 | 10756 bytes |
SHA-256: 98b1cf9a69c650820630eae8f2e5237fcc744b66c1903c9977654021d7fe9904 |
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font_01_sfnt_off0000eb97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB97 | 21152 bytes |
SHA-256: 800e2ed088cff960e2feb3ed39909bb55de992255331291958b005a7b2f7bcf4 |
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font_02_sfnt_off0001234b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1234B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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