MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to numerous external URLs, many of which are hosted on compromised or disposable domains, suggesting a phishing or malware distribution scheme. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://medvor.ru/uplcv?utm_term=house+of+night+pdf+download PDF link annotation
- https://educationindiajournal.org/ckfinder/userfiles/files/47325281553.pdfIn PDF document text
- http://abwpetersburg.com/uploads/files/89123057289.pdfIn PDF document text
- http://vigova.com/Images_upload/files/redafovijimi.pdfIn PDF document text
- http://phutungotodungha.com/img/files/rozeregatujalerekalu.pdfIn PDF document text
- https://maisonforville.be/documents/file/48756448656.pdfIn PDF document text
- http://www.siposferenc.hu/html/24221547172.pdfIn PDF document text
- https://turdv.ru/SITE/files/editor/file/45924211846.pdfIn PDF document text
- http://luberoff.com/userfiles/file/93888694566.pdfIn PDF document text
- https://astdubai.co/userfiles/files/wibilizeled.pdfIn PDF document text
- http://kotolantopeni.cz/file/48858494061.pdfIn PDF document text
- https://tranthachcaodanang.com/uploads/image/files/weripusifipoj.pdfIn PDF document text
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/4lkp2quqesbikt4mdms2lour3v/sazeronilaleziwiti.pdfIn PDF document text
- http://www.lalorraineperdue.com/documents/73885101335.pdfIn PDF document text
- http://intemhathanh.com/img_duhoc/files/32287342150.pdfIn PDF document text
- https://parisnordmedical.fr/docs/file/95415140846.pdfIn PDF document text
- http://eptesteplelek.com/uploads/file/vebifesobetuvagajowi.pdfIn PDF document text
- http://www.satit.nrru.ac.th/satit/_Adminis/ckfinder/userfiles/files/45749919824.pdfIn PDF document text
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/161369b747e5ab---91802852117.pdfIn PDF document text
- http://wwsm-us.com/files/file/25206122877.pdfIn PDF document text
- https://aznamaste.com/ckfinder/userfiles/files/luditezonavidakemefelov.pdfIn PDF document text
- http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133985fbe2e4---66918378757.pdfIn PDF document text
- http://turningpointdigital.com/cote_dor_import/admin/ckfinder/userfiles/files/fawigudafidavojuvufine.pdfIn PDF document text
- 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_off0000dc81.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC81 | 17304 bytes |
SHA-256: b6442333d5623ce88367f37a53542fd85c61fc1fd2fb1dd8768d7e057d0da332 |
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font_01_sfnt_off0001096c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1096C | 10856 bytes |
SHA-256: ed6cf3d398eac4d644efd8eba76752faa89b962d0ba93d3bbc9dfe271eab1775 |
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font_02_sfnt_off00012242.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12242 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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