Malicious PDF — malware analysis report

Static analysis result for SHA-256 96d2fa7686b27fe0…

MALICIOUS

PDF

63.6 KB Created: 2021-06-17 17:05:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 7807d4f2776dd3634333c983cd92325a SHA-1: a3e48f11c6a311c1d2b7a37589110375881ed927 SHA-256: 96d2fa7686b27fe0c661011e534c15dfffbc876d4b2eac6298f883dbf0fa2b6e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links to external websites, many of which are hosted on compromised WordPress installations or disposable domains, suggesting a link farm or phishing lure. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics indicates an attempt to direct users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7624

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One 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://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/afjak5ievb28gtuve3ha8h48qk/47466200260.pdf In PDF document text
    • https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607019de9007f---84969144268.pdfIn PDF document text
    • https://energooptima.hu/upload/File/kasorik.pdfIn PDF document text
    • https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/cb73ba0a42bb1e6116a6b3e212452055/17138842035.pdfIn PDF document text
    • https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/4hsqiud2uobse3l25h7hkiebap/fonosenegodagijanavaloduv.pdfIn PDF document text
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ac381a099e5---60094594296.pdfIn PDF document text
    • https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/c185ce30ab0b9b563cda091dd9ca5c4e/kiwigumitemawusazunujutuz.pdfIn PDF document text
    • http://tailormade-sales-marketing.com/userfiles/file/zejofuvigekixiwutedun.pdfIn PDF document text
    • https://terminal.hr/userfiles/file/gunegug.pdfIn PDF document text
    • https://angkorphotographyguide.com/userfiles/file/27352636600.pdfIn PDF document text
    • http://miwon.com.vn/app/webroot/uploads/files/78841051143.pdfIn PDF document text
    • http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607082acdaba4---61501984648.pdfIn PDF document text
    • https://angkoronetour.com/userfiles/file/13616536944.pdfIn PDF document text
    • https://almondzwealth.com/administrator/imagetemp/file/gijitugukobalelo.pdfIn PDF document text
    • http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3500b5fb85---xeputufifulevararoz.pdfIn PDF document text
    • https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/0c370c0d69f9b61846e605d6fa6d66ce/zuliwo.pdfIn PDF document text
    • http://goodslib.com/userfiles/files/zagewiwodosazomubusoxegim.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=89+electra+glidePDF link annotation
    • https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/2022d5e9b34895bfb725dba5580925e5/xukupamofofibixinaxono.pdfIn PDF document text

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