Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b6ffdd47d44e6ca…

MALICIOUS

PDF

61.1 KB Created: 2021-05-10 14:28:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e93dd8788c464fc5f9b9e6353657b54e SHA-1: e019caf7ea6d105c08264bb8fb326764e4217a97 SHA-256: 5b6ffdd47d44e6caab06b8b093c08a0fb09d044153e4d51534b5db0e26321884
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links pointing to compromised WordPress sites, which in turn host other PDF files. This structure suggests a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery via these linked PDFs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6759

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 http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/160848d8b0a886---faxaxatexibavumutazojiza.pdf
    • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606c84d54944a---tanoxobegemurupuxesa.pdf
    • https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16074b9fe9fc13---fugul.pdf
    • https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081413d70fab---rasaza.pdf
    • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606f275277a99---35136235286.pdf
    • http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/63fbe49a454d7616c79f44a9fa9d4057/26119999859.pdf
    • https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079e1ea30ee6---finimufuviva.pdf
    • https://airshow-bg.com/file/70063348305.pdf
    • http://workprohealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607738a2cebf5---48942861471.pdf
    • https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/d8135885d8cf375d26796298453bd195/nizovutexijowen.pdf
    • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607159cf5b159---58376171924.pdf
    • https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/6d85ec955d20d7ba3000775c6e30cc41/4033145750.pdf
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16094cc99a7a01---kozidazomuperedisiguzim.pdf
    • https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/b9a9755aa155790ba21102e431137bf9/xosopuditemalut.pdf
    • https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/92dgi429gtsrbd7b46hhohrp03/9121310967.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=appcompat+v7+library

Open this report in the interactive analyzer, or submit your own file for analysis.