MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs that form a link farm, a common tactic for phishing or distributing further malware. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically points to this behavior, suggesting the document is designed to drive traffic to potentially compromised or disposable hosting sites.
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://chcial.ru/uplcv?utm_term=menendez+blood+brothers+watch+online PDF link annotation
- http://kfbma.org/files/fck/file/37141691130.pdfIn PDF document text
- http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136dc5596b98---8271091173.pdfIn PDF document text
- https://www.wroclawmodelshow.pl/ckfinder/userfiles/files/tuburaxal.pdfIn PDF document text
- http://sure2trips.com/bot/ckfinder/uf/files/sanapik.pdfIn PDF document text
- https://epponline.com/mentorfinancial/page_images/file/fegiwozutumevesi.pdfIn PDF document text
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613362b02f1c8---5298418898.pdfIn PDF document text
- http://educasters.co/ckfinder/userfiles/files/bedomasawiduvezira.pdfIn PDF document text
- http://gamaxmotor.cz/data/dokumenty/1772717156.pdfIn PDF document text
- https://australiancaravancentre.com.au/application/third_party/ckfinder/userfiles/files/88928378203.pdfIn PDF document text
- http://jncs.kr/page_data/file/20210914071729.pdfIn PDF document text
- http://fipjp.com/userfiles/file/letewatenofamofubex.pdfIn PDF document text
- https://geneolock.com/locktactyuma/userfiles/file/jefabufubumupefukirobulu.pdfIn PDF document text
- https://acrgruppe.de/userfiles/file/95768344460.pdfIn PDF document text
- https://xinpayflow.com/ckfinder/userfiles/files/3220674554.pdfIn PDF document text
- http://rnralpha.cz/res/file/doborukewugowo.pdfIn PDF document text
- http://be-now.pl/userfiles/file/vigulij.pdfIn PDF document text
- http://langeline.com/ckeditor/upload/files/2512559203.pdfIn PDF document text
- http://ark-mr.com/data/home/qxu2063190031/htdocs/uploadfile/files/45516667220.pdfIn PDF document text
- http://wingprocess.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/33133633050.pdfIn PDF document text
- https://sensiblemachines.com/ckfinder/core/connector/php/files/rukariwabudikapimoseju.pdfIn PDF document text
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16131ad1add4c9---nimonipewolasu.pdfIn PDF document text
- https://yaslibakicisi.net/userfiles/file/9162956188.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_off0000deed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEED | 18348 bytes |
SHA-256: 3678e5bd693eb386c355b6d4b90c1a48154531263a868453ea30b5e64bb3f4d9 |
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font_01_sfnt_off00010e24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E24 | 10748 bytes |
SHA-256: 1dce8e87c9ba4dec869b8f1f95803bb9c6a999465338d139a37d543eae72041b |
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font_02_sfnt_off000126e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126E3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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