Malicious PDF — malware analysis report

Static analysis result for SHA-256 86a4740f8114305f…

MALICIOUS

PDF

56.1 KB Created: 2021-05-15 05:24:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be8e46df83b79c3f4e1bf3d8c1163fea SHA-1: e1933e8c7200c6599efb4b586fcfb76786d6b5e1 SHA-256: 86a4740f8114305f623b7d392ec3f2cc2d021fe40459c9bd71cf063b591ea33b
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm pointing to multiple compromised WordPress sites, suggesting an attempt to distribute malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristics suggest the document is designed to trick users into downloading further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7673

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 http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/1608651dcab9a5---25065466252.pdf
    • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/0b45545fdba6049c51269b4fa0af385d/63011566104.pdf
    • https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/cdf9391b9354db6cece13925dcea727a/36018024657.pdf
    • https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608978961af74---zuxemi.pdf
    • https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080287a28248---texuvivu.pdf
    • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/k8uiv7cg137cb342eposqst812/nevam.pdf
    • http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607529685cbce---dojimigubutadilaniwa.pdf
    • https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092bda494e73---satipiwavunuxifotu.pdf
    • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16095dfdc05732---bavokibominubomeviji.pdf
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/fccd6796520f702b4af7ca5e9e68e234/fivelivegalotezis.pdf
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085e7ec636ff---zeserumukedewubisik.pdf
    • https://ajitcoatings.com/uploads/99292086160.pdf
    • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609d2676643d7---12324042947.pdf
    • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cde072be9b---51881285967.pdf
    • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ae25f7ab2d---41829156538.pdf
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609adb3840df4---26445064542.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=the+politically+incorrect+guide+to+global+warming