MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised CMS uploads or are part of link farms on disposable hosting, indicating a likely attempt to redirect users to malicious sites. The document body is heavily obfuscated and contains metadata from wkhtmltopdf, suggesting it was programmatically generated to host these links.
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 https://cortopolis.ar/userfiles/file/58273859012.pdf In PDF document text
- https://dom4m.by/userfiles/files/zadumifetumewuvu.pdfIn PDF document text
- http://tinavaron.com/ckfinder/userfiles/files/24266686813.pdfIn PDF document text
- http://allgeology.ru/ckfinder/userfiles/files/denabipapuj.pdfIn PDF document text
- http://allprintusa.com/admin/images/file/gopiberakibuxo.pdfIn PDF document text
- https://clubslotalmatriche.com/calcas/file/25687377887.pdfIn PDF document text
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4e4ed2248b---laluloxogudufupozaniraru.pdfIn PDF document text
- https://mtmhomeschool.com/mycms/uploadedimages/editorUploadedImages/file/lijoke.pdfIn PDF document text
- https://maymac.info/userfiles/file/sezudapuvuf.pdfIn PDF document text
- https://www.nrlandscapes.co.uk/wp-content/plugins/super-forms/uploads/php/files/a374b9a4bfd4a9dc3d11c937c3c8e2e3/xobexipafogox.pdfIn PDF document text
- https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/l3fac1e472n4dm00mekr6flvl5/nesejajagubijukugifaje.pdfIn PDF document text
- https://standsimulator.com/ckfinder/userfiles/files/vinerunaxilasanegekenifug.pdfIn PDF document text
- http://dalaichau.com/files/14249120652.pdfIn PDF document text
- https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/snuc1qmialggghv428mqrvprb8/62199280534.pdfIn PDF document text
- http://msiutilities.biz/documents/kijuk.pdfIn PDF document text
- https://realestateconnect.pro/wp-content/plugins/super-forms/uploads/php/files/m405srd2toqvedt34abuu97in1/dowuwowugalatekesewexig.pdfIn PDF document text
- http://best-infosystems.com/userfiles/file/tupizo.pdfIn PDF document text
- http://ballmillfactory.com/d/files/rozivazu.pdfIn PDF document text
- http://aarogyamedico.com/userfiles/file/xinafegefawezitidu.pdfIn PDF document text
- https://atlanthealth.com/wp-content/plugins/super-forms/uploads/php/files/107f64f732174d81dfe55499b5c8015c/gudolimovusuzibinadu.pdfIn PDF document text
- https://everestart.com/images/stories/file/53278677963.pdfIn PDF document text
- https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e595d6adba---96090942527.pdfIn PDF document text
- https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/257e9a03dd7fde1ea1b87e3303ccfdda/4928303694.pdfIn PDF document text
- https://systematix.pl/userfiles/file/47619189789.pdfIn PDF document text
- https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a21f202dab---xitumipimef.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=palabras+homofonas+y+homografas+ejercicios+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_off0000f915.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF915 | 11352 bytes |
SHA-256: 7d380bd06fa79f1ed32d02cfb9a1034635e6b5b03a2373d9d53fa32271d6c956 |
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font_01_sfnt_off0001132e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1132E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012b40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B40 | 21448 bytes |
SHA-256: 48aa58a74526536ca8ef24d4d09dbc217a41cc02fb74d29c77aa9b4f7c200621 |
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