Malicious PDF — malware analysis report

Static analysis result for SHA-256 795e107469455bec…

MALICIOUS

PDF

96.0 KB Created: 2021-07-14 02:24:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-29
MD5: 502ac3d1e4239f0ff765efdbc056bf39 SHA-1: dc1a461f0e3329c2b0b499f7af4df9067938e653 SHA-256: 795e107469455bec9d5e8b744a88b1d59f3fca848b24937569193d82f7aa119b
182 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

This PDF file contains numerous embedded URLs, many of which point to compromised CMS upload storage or known malicious redirectors. The heuristic firings indicate that the document is designed to lead users to malicious infrastructure, likely for phishing or malware distribution. The ClamAV detection further confirms its malicious nature as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4806

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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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=a+poison+tree+summary+in+tamil In PDF document text
    • http://vdadanang.vn/app/webroot/assets/files/40656383791.pdfIn PDF document text
    • http://ghhs1968.com/clients/5/57/5762190d0a265df614d1f295a7060a42/File/sukazevedagebonesexitoki.pdfIn PDF document text
    • http://detikakdeti.ru/img/file/80054280477.pdfIn PDF document text
    • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b678c340e37---54576749017.pdfIn PDF document text
    • http://urgentcarepb.net/userfiles/file/48416042381.pdfIn PDF document text
    • https://www.waterlooarmsnewforest.co.uk/wp-content/plugins/super-forms/uploads/php/files/1dcd5c52e382a92c5528c25ad3dd2b08/kodeded.pdfIn PDF document text
    • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4ec59b8967---8897646047.pdfIn PDF document text
    • https://www.properties-thassos.com/wp-content/plugins/super-forms/uploads/php/files/pgo0m47f5fqsmpdt0b194qn1o4/99313958259.pdfIn PDF document text
    • https://trvstore.com/userfiles/file/kabalipap.pdfIn PDF document text
    • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609661726e7ea---kuvuzizupesowewerom.pdfIn PDF document text
    • http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a372413a5b4---70378409988.pdfIn PDF document text
    • http://northmarking.com/userfiles/files/3891736743.pdfIn PDF document text
    • http://zovsh.com/Uploadfiles/files/21811454156.pdfIn PDF document text
    • http://score1forspencer.com/clients/4/45/4587145e2679cb7673d0e21b436e5c25/File/vafapisinogatasafiza.pdfIn PDF document text
    • http://maidnheaven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f7cb7a2a35---bedapajinar.pdfIn PDF document text
    • https://soudurelausiere.ca/upload/editor/file/xumipileripasuwuwofofokid.pdfIn PDF document text
    • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160c0837a540de---12588468219.pdfIn PDF document text
    • https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/3fa4082d51325cc806d9fb1a8e27b70e/30890771033.pdfIn PDF document text
    • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c67ec4adbf---5398036897.pdfIn PDF document text
    • http://taiwanglassgroup.cn/userfiles/file/11328848133.pdfIn PDF document text
    • http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160ac2afdaef63---pewasage.pdfIn PDF document text
    • http://mineraux-et-lithotherapie.fr/ckeditor/upload/files/25010454600.pdfIn PDF document text
    • http://swaminarayangm.org/userfiles/file/wirugawupezop.pdfIn PDF document text
    • https://fullgame.hu/uploads/files/woliv.pdfIn PDF document text

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