Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc564c204badcd79…

MALICIOUS

PDF

117.2 KB Created: 2021-06-09 02:28:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 98663f2d47c56218f55de04e1f13a2b4 SHA-1: 157a9803b9d92d3108b47a1723646d1ec2d0d752 SHA-256: fc564c204badcd792f0a66dcecbe68f0d445116d86eb0940a493ecf623438594
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links to external websites, many hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. ClamAV detection as 'Pdf.Phishing.Trojan' and ML classification further support its malicious nature. The document body, though heavily obfuscated, appears to be a spiritual text, likely used as a lure to disguise the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7186

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://huntic.ru/uplcv?utm_term=shri+shiv+ashtottarshat+namavali PDF link annotation
    • http://sashtraayurveda.com/ckfinder/userfiles/files/wixatudumilufotu.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1608fe546850a3---70379191998.pdfIn PDF document text
    • http://elitaliaweb.it/upload/file/wajoj.pdfIn PDF document text
    • http://www.nowsingapore.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/1607db00ced25f---71270633045.pdfIn PDF document text
    • http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/160870dbdcbfb8---77523266582.pdfIn PDF document text
    • http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bbc1eaaf7c---63547098697.pdfIn PDF document text
    • https://wavesmaroochydore.com/wp-content/plugins/super-forms/uploads/php/files/tl7tg34p06i40s6bmicn8upsqu/34465948434.pdfIn PDF document text
    • http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a411a807d7---watozajuxumexan.pdfIn PDF document text
    • https://augsburger-dartliga.de/uploads/file/tobevivajoronovope.pdfIn PDF document text
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/4dc2c1bec6fec1588e65843854a1ecd5/38684683235.pdfIn PDF document text
    • https://okinawa4d.com/contents//files/75693576406.pdfIn PDF document text
    • http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/05b4dd1fc590fcc2069190676820907b/98993082299.pdfIn PDF document text
    • http://marinapogon.pl/upload/file/17838595877.pdfIn PDF document text
    • http://unsersohn.ch/images/file/49078519133.pdfIn PDF document text
    • http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/ltdcd7h7u6q7e4nmj955coppro/niriguponotuz.pdfIn PDF document text
    • http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160746fd88afa5---vamafufoz.pdfIn PDF document text
    • https://www.latentoac.com/portal/wp-content/plugins/super-forms/uploads/php/files/kok851vh0gbp1q4l3b8lv8921q/vitubozoropesevab.pdfIn PDF document text
    • https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088c8eaccd81---dadepakedibeposituma.pdfIn PDF document text

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