MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised CMS platforms or disposable hosting, suggesting a link farm or phishing lure. The embedded URLs, such as 'https://crysiq.ru/uplcv?utm_term=cookery+classes+listening+answers+ielts', are likely used to redirect users to malicious sites for further exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://crysiq.ru/uplcv?utm_term=cookery+classes+listening+answers+ielts PDF link annotation
- https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/5231e910f92123bb2a16dfa2c4f7d903/21307120050.pdfIn PDF document text
- https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/bbfa355826e025905874166b511a8391/pamulafiboz.pdfIn PDF document text
- https://www.helmmsp.ca/wp-content/plugins/super-forms/uploads/php/files/f126c491f3aa4e88d15daa5c84fa5ca6/xurovabenasozovuvofani.pdfIn PDF document text
- http://machinegroup.ru/img/outer/files/91224262499.pdfIn PDF document text
- http://pinpointfeedtech.com/ckfinder/userfiles/files/13916892663.pdfIn PDF document text
- https://nabsangram.com/userfiles/file/91949348271.pdfIn PDF document text
- https://xn----9sbccjdbca7cyaieg1a3j.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ae66c707f878eac702217d3beb5ec1ca/darobunakezasimide.pdfIn PDF document text
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b5f7136f37---wasafep.pdfIn PDF document text
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9c0e238e84---misem.pdfIn PDF document text
- https://brandonsmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/stapjvae77ksr2o5g5mr6kpqv2/54351619656.pdfIn PDF document text
- http://colleges-in-tamilnadu.com/FCKeditor/userfiles/file/waxuwojunikederuvosit.pdfIn PDF document text
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d6fce30720---kesasijavavuvosenidorow.pdfIn PDF document text
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160849724700c0---20001768771.pdfIn PDF document text
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/b0ff1fd09f4a5d2f6e8878fc4eb791d2/mevagur.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e71e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE71E | 5132 bytes |
SHA-256: 07d3963fd69c501bc66abf6ddafbb6b23a2390e9ae42c97ea2c9a58692f9b59d |
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font_01_sfnt_off0000f8c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8C1 | 12932 bytes |
SHA-256: d4829aed4799faf521344ef1a68e56ba350ed9daf1d6b5122251bbf55f90f437 |
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