MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF identified as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs, many pointing to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the PDF structure and URL patterns are indicative of a phishing or malware distribution lure, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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 http://tcihk.com/userfiles/vobunewi.pdf In PDF document text
- https://spirit-legend-enterprises.com/webroot/editor-uploads/files/nidenesujagijoxoda.pdfIn PDF document text
- http://fohow77.ru/upload/file/maliwowupebigolejawudinon.pdfIn PDF document text
- http://cokhivietuc.webthoidai.com/img-vietuc/files/42583695714.pdfIn PDF document text
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/rnukui0m2oa1142podmjah1734/32894112318.pdfIn PDF document text
- https://madeirashopping.com/userfiles/file/milakexeloravebunesi.pdfIn PDF document text
- http://abwnickersonplaza.com/uploads/files/39000703099.pdfIn PDF document text
- http://mazdooradda.com/userfiles/file/14236024124.pdfIn PDF document text
- http://hanasushi6.com/uploads/files/58757041215.pdfIn PDF document text
- https://alihuata.com/userfiles/file/6046623260.pdfIn PDF document text
- https://chuyennhakienvangvn.net/upload/files/bazobexodapizowi.pdfIn PDF document text
- http://albino-pitti.com/pub_img/file/9391017310.pdfIn PDF document text
- https://deltarealestate-eg.com/userfiles/file/lotaguxebegijabixizo.pdfIn PDF document text
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614fd7b1bc6db---31419292183.pdfIn PDF document text
- http://jplus-ag.com/upload/files/BodyFile__6130B1DDDC483.pdfIn PDF document text
- https://fokusmedia.com/images/uploads/70939727950.pdfIn PDF document text
- http://inarchengineering.it/userfiles/files/35107040825.pdfIn PDF document text
- https://angkaindaman.com/contents/files/gegawulelikidafujararef.pdfIn PDF document text
- https://guapa2.com/admin/fck/file/82132629787.pdfIn PDF document text
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/8fb34969df6ebdf213ab87ed133e7361/pojefekuruvibuv.pdfIn PDF document text
- http://hotelpenza58.ru/ckfinder/userfiles/files/benumugojidorenuja.pdfIn PDF document text
- http://tartak-monis.pl/tartak/images/file/nuwiwokaragokom.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=other+words+to+say+happyPDF 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_off0000ad07.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD07 | 15620 bytes |
SHA-256: d4c3781e0c7d07fb5b3da13b6a8692ad489faa0b99bad8c398185c19e255ceec |
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font_01_sfnt_off0000d491.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD491 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000eca8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECA8 | 10472 bytes |
SHA-256: f2999aca6c7362e96cf4bb69001341ce74a7b91780681b32a03e92228166933f |
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