Malicious PDF — malware analysis report

Static analysis result for SHA-256 498f726157b5d707…

MALICIOUS

PDF

137.4 KB Created: 2021-06-24 05:02:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 9b77bbeeddd7572ba74c431c6e54cbc5 SHA-1: d67002fe15ebe3f2a17fb56a3938008a7db3b06b SHA-256: 498f726157b5d70748b31d08b409d8bba0cf8698fcb5cff6dcb26fba18093a7d
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, indicating a high likelihood of malicious intent. The document body and heuristics reveal it is designed as a link farm, using SEO tactics to appear as a free download for a study bible. The embedded URLs point to compromised CMS uploads and disposable hosting, suggesting an attempt to distribute further malicious content or phish users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9663

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://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079fba050a2b---tolafiwujijesufoz.pdf In PDF document text
    • https://wccia-vastu.com/wp-content/plugins/super-forms/uploads/php/files/586e1be4963c883b3b3e531b3f2d7abf/kagesabujebidurow.pdfIn PDF document text
    • https://midasspa.com/ckfinder/userfiles/files/boxelixasafizaxigi.pdfIn PDF document text
    • http://globalcenterhotels.com/bot/ckfinder/uf/files/35058413169.pdfIn PDF document text
    • https://prestinieurope.ch/userfiles/files/15433937111.pdfIn PDF document text
    • https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/408a27dce4b871ed67c5370cef09001d/zunijujamivigefaj.pdfIn PDF document text
    • http://parfumerieindex.nl/images/uploads/27295231696.pdfIn PDF document text
    • http://maskaevlawyer.ru/userfiles/file/42783210026.pdfIn PDF document text
    • https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/5d9a64460ca3ab1fab0f48a8dfe5ea06/loselagokit.pdfIn PDF document text
    • https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/a1b5b1d678e3e491cbb3314d5b209cc7/muruvibonitovewenupipeno.pdfIn PDF document text
    • https://bda.ch/ckfinder/userfiles/files/75532916259.pdfIn PDF document text
    • https://scanclean.bg/upload/ckfinder/files/78748264655.pdfIn PDF document text
    • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/160819be89f680---93975607767.pdfIn PDF document text
    • https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/2dd309544abb71e6d7fbef360152fea1/45758376486.pdfIn PDF document text
    • https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/pde29v8c10mdke77orqo6o7sig/fuxujisexomubik.pdfIn PDF document text
    • https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/6lbi8gq4bj108a37gnkb751e5u/pusomi.pdfIn PDF document text
    • http://ottotech.center/userfiles/file/tuwazafovijiwo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=the+orthodox+study+bible+pdf+free+downloadPDF link annotation

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