MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to compromised websites, suggesting it functions as a link farm to distribute malicious content or phish users. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' reinforces this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
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://ketchas.ru/uplcv?utm_term=alphabet+writing+worksheets+uk PDF link annotation
- http://www.smartlandgroup.com//ckfinder/userfiles/files/23424742093.pdfIn PDF document text
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d6ce2b339b9---46156427932.pdfIn PDF document text
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b75b4f821db---rewifexijekunuwafopo.pdfIn PDF document text
- http://mamolenasnc.it/userfiles/files/kofajer.pdfIn PDF document text
- http://tsraccountants.nl/mailing/images/photo/file/rovomasamoxuzo.pdfIn PDF document text
- http://alwaysshine.com/fileimage/file/46176775058.pdfIn PDF document text
- http://xn----7sbbgprpk7biiq.xn--p1ai/admin/ckfinder/userfiles/files/falujuk.pdfIn PDF document text
- https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/2a72933699a9faf16c0e45b2975ad42e/10742450823.pdfIn PDF document text
- https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/1588c801f6af964027bdcecac943eacf/90745472752.pdfIn PDF document text
- https://eminentland.com/admin/userfiles/files/43917548901.pdfIn PDF document text
- http://sugarfree-gelato.com/upload/file/87894756921.pdfIn PDF document text
- http://anquocrealty.com/uploads/image/files/47664498700.pdfIn PDF document text
- http://villa-carlshorst.de/sites/default/files/file/15267934709.pdfIn PDF document text
- http://sahamit.net/userfiles/file/89166074372.pdfIn PDF document text
- http://robalton.es/Albums/images/file///14455947478.pdfIn PDF document text
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/160a30173e14c9---964515811.pdfIn PDF document text
- http://primebrokeragetx.com/ckfinder/userfiles/files/4458269177.pdfIn PDF document text
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c0f8aea6d6f---nimowowufisumododiwujomip.pdfIn PDF document text
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a0d3d6eaa21---99260589269.pdfIn PDF document text
- http://cz-synergy.cz/data/file/8395705149.pdfIn PDF document text
- https://renesens21.com/ressources/upload/files/86535029290.pdfIn PDF document text
- https://www.alapan.org/fckimages/file/50078372447.pdfIn PDF document text
- http://berbun.com/user_img/file/31702576065.pdfIn PDF document text
- https://betenrealestate.com/sites/default/files/file/periwa.pdfIn PDF document text
- https://verlauf-ekb.ru/admin/ckfinder/userfiles/files/70701940684.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_off0000cb47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB47 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e35e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE35E | 10928 bytes |
SHA-256: 5bbc07385438ef5c9d12381dbc778c37f77cce8ae336e95d8f72c34702477de3 |
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font_02_sfnt_off0000fc87.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC87 | 17064 bytes |
SHA-256: efcf6fc4eeec09f56f83a78d7edb2f25154523767c6e849399a9536da2eb2fbb |
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