Malicious PDF — malware analysis report

Static analysis result for SHA-256 fed2eba125b097a4…

MALICIOUS

PDF

63.9 KB Created: 2021-06-15 12:29:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5aebab6f86de5189e9724611548b4be7 SHA-1: 5a1b5550c80b28aa490d0f46d40743f856f69646 SHA-256: fed2eba125b097a452c514c496594f36c7ee92bbadd89c667d9cf5ca618ee5e1
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links, many pointing to compromised WordPress upload directories, suggesting a link farm designed to host malicious content or phishing pages. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9645

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://crewmak.ru/uplcv?utm_term=reduce+pdf+file+size+less+than+1mb PDF link annotation
    • https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/9436644a6a1cac042e4541d40c5014e1/82485145010.pdfIn PDF document text
    • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16099dabc37188---15749897592.pdfIn PDF document text
    • https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/8f08ofqhnfdlapl2odvmj35pet/60855573129.pdfIn PDF document text
    • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/8gdd5r7meqcc9ea0adgdu5vs50/sanipi.pdfIn PDF document text
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b5761f93692---zusazigagovisulil.pdfIn PDF document text
    • http://cobansut.com/userfiles/file/fofezelijadezaja.pdfIn PDF document text
    • https://altbuket.ru/files/89439229659.pdfIn PDF document text
    • http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1607698dca18de---zozixaxiwuweniwifetuzutuv.pdfIn PDF document text
    • http://ottotech.center/userfiles/file/30178154504.pdfIn PDF document text
    • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16072465abf0d1---85439727560.pdfIn PDF document text
    • https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/27888288000e7df04c3e88df6ccca4d9/58860538886.pdfIn PDF document text
    • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/4g9k7tkr2vt9u38rqkikkbvgai/sakogodokivanutemabur.pdfIn PDF document text
    • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/opdu8nlmolvdu52jkrahkge6m2/masadeg.pdfIn PDF document text
    • https://nhathuydesign.com/wp-content/plugins/super-forms/uploads/php/files/toshv4l28t2sfq64j0m93tmg16/62169835010.pdfIn PDF document text
    • http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080e9d277e07---9939734934.pdfIn PDF document text
    • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/db1b91dea856ef83ab1c5bcbfc37731c/lutaroxezivevenakixegamed.pdfIn PDF document text
    • https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/342j45f4csul41ro44epiaosv1/vopepobikifugodinaligabi.pdfIn PDF document text

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