Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cc9a3e70a334a93…

MALICIOUS

PDF

51.2 KB Created: 2021-07-29 13:01:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 4ac5c446a229ea101542b5da529e72ef SHA-1: 701c194719b1fde22ddaee2ce3fee15dce5b5dd3 SHA-256: 2cc9a3e70a334a932a057bc7756a78f42c9df55e23051b9544c72b4072a0f643
124 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with several pointing to compromised WordPress sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or distributing further malware. The presence of numerous links suggests an attempt to direct the user to potentially harmful external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5106

Heuristics 4

  • 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.
  • 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://smidgel.ru/uplcv?utm_term=does+joseph+die+in+orbiting+jupiter PDF link annotation
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095892d8a9f3---nojevazevax.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/iuit83qkchs3qi8h9c88049mp7/muxigubew.pdfIn PDF document text
    • https://xn--faades-mtal-n9a6a.ch/ckfinder/userfiles/files/bowutilurexutigidebuxi.pdfIn PDF document text
    • https://www.ergunaygoren.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072869291ed0---86217175248.pdfIn PDF document text
    • http://danies.ru/ckfinder/userfiles/files/lulojebunisaxekikun.pdfIn PDF document text
    • https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16089b2b66f12c---42699056320.pdfIn PDF document text
    • http://przedszkolenisko.pl/userfiles/file/jumakiveko.pdfIn PDF document text

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