Malicious PDF — malware analysis report

Static analysis result for SHA-256 5417cdc8e2083520…

MALICIOUS

PDF

62.6 KB Created: 2021-06-10 16:59:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 0af75212b466cbd6e1e75e22ee0ebe32 SHA-1: 82e77e735bd1e1906dd3a2225671a628565d688c SHA-256: 5417cdc8e20835204d63949084d6d988647f8af2ceeb68060dccb6ddfe6f2484
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. It contains numerous links to external websites, many hosted on compromised WordPress installations, suggesting a link farm or phishing lure. The document body, though heavily obfuscated, contains references to popular media and software, likely to trick users into clicking the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7475

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://nomylo.ru/uplcv?utm_term=avengers+endgame+viooz PDF link annotation
    • https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/cb0cf6e43a2f73245e132caf7f7a9ae8/vapaji.pdfIn PDF document text
    • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160ba5e10b98ff---81532371621.pdfIn PDF document text
    • https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/0ba68c45c0d79a76c5af34abda791e63/komuzexo.pdfIn PDF document text
    • https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/bed51ebf4ad24cfaf2e7dad08cd8dc44/3973323317.pdfIn PDF document text
    • https://doellefjelde-mussemarked.dk/images/newsmail/file/76553251916.pdfIn PDF document text
    • https://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/73fc080496be12687576cb71533d2e5d/dilatudavelofikaje.pdfIn PDF document text
    • http://coimbra.hu/uploads/ckfinder/userfiles/files/ravaveneme.pdfIn PDF document text
    • https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/6fe306bed4d84ba51442c32bad359d68/fajisudulogagulodexibuk.pdfIn PDF document text
    • https://tlpnw.com/wp-content/plugins/super-forms/uploads/php/files/7e52be4b57ed2970c81165d1c7ca3511/21009319423.pdfIn PDF document text
    • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160770c650a375---pujipananonetukoximikusi.pdfIn PDF document text
    • http://ivepe-elearning.gr/assets/UserFiles/mainHome/file/wapevigozosoxefured.pdfIn PDF document text
    • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f1de397f0f---nazekupanimimemaj.pdfIn PDF document text
    • http://qlinairnv.be/userfiles/file/kovurazevu.pdfIn PDF document text
    • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/f6a78fb62d9de72d82d0ed60ce1be534/fuwutuwak.pdfIn PDF document text
    • http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160783b62edef6---sojuxebajajemaxukobas.pdfIn PDF document text
    • https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/16082df34c5d0d---nusutibunal.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.