MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by both ML classification and ClamAV, indicating a high likelihood of malicious intent. The file contains numerous links pointing to compromised websites and disposable hosting, suggesting it functions as a link farm to distribute further malicious content or phish users. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9592
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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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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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://zetrade.cz/userfiles/file/50363807555.pdf In PDF document text
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c40e4222da3---98397381258.pdfIn PDF document text
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/0c296301332967763ea11c348f4111d2/zovemuxizuzifivanuze.pdfIn PDF document text
- https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/ck90tfoi12nt3kgpuhrnd4581k/71484557655.pdfIn PDF document text
- http://biemmecommerciale.eu/userfiles/files/xinodel.pdfIn PDF document text
- http://blevy.com/ckfinder/userfiles/files/57542862570.pdfIn PDF document text
- https://www.endthestigmacounselling.com/wp-content/plugins/super-forms/uploads/php/files/1ln7vss42g71iqg0h7lu96j615/9253780271.pdfIn PDF document text
- http://woodbridgeabw.com/uploads/files/bupokorewixatigerevonid.pdfIn PDF document text
- http://amdind.com/userfiles/file/35807465209.pdfIn PDF document text
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/jgrfqsgoidinffje477atjj4ve/59385946618.pdfIn PDF document text
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/160c2d1e509c7a---xuwono.pdfIn PDF document text
- https://cengilli.com/icerik_images/file/verif.pdfIn PDF document text
- http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1611757fb47f61---tebujapokipejemodiko.pdfIn PDF document text
- https://weddingitaly.jp/images/file/46892151434.pdfIn PDF document text
- http://dental-forum.ru/userfiles/file/22533382529.pdfIn PDF document text
- https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/osgs4mqbbohtek9actl7pnqoaa/87213067079.pdfIn PDF document text
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/st3acs5tmpfaptlbo54d3ns252/nogukenigonatezedubagiz.pdfIn PDF document text
- http://liebherr-tr.com/userfiles/file/95988576555.pdfIn PDF document text
- https://bursakaynak.com/userfiles/file/34338278102.pdfIn PDF document text
- https://eminenceconstruction.ca/viking1/uploads/files/rizew.pdfIn PDF document text
- https://medicabg.com/uploads/wysiwyg/files/61748050438.pdfIn PDF document text
- http://cuatudongsaigon.vn/uploads/files/sadul.pdfIn PDF document text
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cabf85c734---76261501233.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=how+to+write+a+cover+letter+for+academic+journalPDF link annotation
- 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_off0000d7b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7B2 | 10840 bytes |
SHA-256: 26f9488956f616fafbba4fbcb833e4c5a056c990c5ec98bd9ebe5b030fc0726c |
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font_01_sfnt_off0000f0a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0A5 | 16680 bytes |
SHA-256: a8bf613f22ec03775a0c609df1c1aa4eb2d5b3fc532ff03982063bef87f90972 |
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font_02_sfnt_off00011b6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B6B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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