Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea49478a34045c19…

MALICIOUS

PDF

67.3 KB Created: 2021-06-09 16:22:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c5ccf9ef04f6f3d317861e482385f61 SHA-1: 9389ae7dd3af1a57b8472961df70a64ea420e83f SHA-256: ea49478a34045c192a8259c7671dc89ee528d3046a0a2aca561c213e50f07f5e
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 heuristics reveal it functions as a link farm, directing users to multiple compromised WordPress sites and disposable hosting domains. The embedded URLs suggest an attempt to lure victims to phishing or malware-hosting pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7653

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://oniceh.ru/uplcv?utm_term=erayo+jacayl+ah+oo+soo+jiidasho+leh
    • http://all-pass.com/folder/editor/file/pilufejulurav.pdf
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/8e878caafdf14a163912d684a0c0929f/kamuzosuganariziterufojoj.pdf
    • http://travelshops.pl/userfiles/file/41005318661.pdf
    • https://almuhja.net/ckfinder/userfiles/files/49750948294.pdf
    • http://redwoodpwr.com/wp-content/plugins/super-forms/uploads/php/files/6gjmmtu82ck150uhr9n1gpgiq2/67379351632.pdf
    • https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/edgupmn22s4mlsjk0mvk5b2bb7/2178445016.pdf
    • http://inglewoodreunion.com/clients/68690/File/dajufafubuga.pdf
    • http://bestapp4u.com/admin/uploadedfiles/file/tapoj.pdf
    • https://realestateconnect.pro/wp-content/plugins/super-forms/uploads/php/files/trpvcpvu14un4phvjtf3q7dae6/3221518880.pdf
    • http://bagiez.com/userfiles/file/82417405912.pdf
    • https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/c08d04d3b22d674b7e25580ecf737dd1/mazepe.pdf
    • http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16087da490acd8---85647896369.pdf
    • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/7f663491d9afca86ef1c998fe837e518/fipegolinadumuzu.pdf
    • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160aa393ecb4f7---92384457877.pdf
    • http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/jogefefikufalez.pdf
    • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1607da4faa9a2c---75274129101.pdf