Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ea89060c9ef66c3…

MALICIOUS

PDF

63.8 KB Created: 2021-06-26 03:14:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 90b3a677ee1476933b9e34b7485343b9 SHA-1: 7adad698e9c787327e3f267e9aba26b68f6aa02e SHA-256: 5ea89060c9ef66c3bc8c36a7dcf5961864e6611649d5ca63f4ec85becf13d4f7
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous links, many of which point to compromised WordPress sites. The ML classifier and ClamAV detection indicate malicious intent, likely phishing or redirection to malware. The primary attack pattern involves luring users through a link farm hosted on potentially compromised infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5628

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 http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/69da3d6ee9d1cd3a7b57996ed2beb49d/77080456561.pdf In PDF document text
    • http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160ad921ec2693---samoto.pdfIn PDF document text
    • http://accronline.com/userfiles/file/16564049028.pdfIn PDF document text
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/649e14cb79aa690ed5844bd232568bbd/63249521593.pdfIn PDF document text
    • https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/8c6dca9484965e130cc72a8b7101fd2f/52603512989.pdfIn PDF document text
    • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fadc7899fe---paribiginebader.pdfIn PDF document text
    • http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/160b559eb251c7---puwinisumatekederovixadu.pdfIn PDF document text
    • https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3bbb29bf98---65071912789.pdfIn PDF document text
    • https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/c25db1f0bec365df5ab74fd7f5d00a9c/95956875527.pdfIn PDF document text
    • http://banning64reunion.com/clients/a/a7/a71e9339640f4be667ed55590a288245/File/32272041238.pdfIn PDF document text
    • https://www.treehousecare.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606f37b013d09---bazeferivuf.pdfIn PDF document text
    • https://zahnersatz.pl/userfiles/files/50974962707.pdfIn PDF document text
    • http://alptw.com/images/files/warefukasalazokakapu.pdfIn PDF document text
    • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d47ea2fdcc---xibekebapukufekebabokida.pdfIn PDF document text
    • http://vendingchat.ru/uploads/ckfinder/files/majodo.pdfIn PDF document text
    • https://ambientltg.com/wp-content/plugins/super-forms/uploads/php/files/e64578e618f4444ae8ce9e587f0ddbd1/82116414410.pdfIn PDF document text
    • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5ad1356a4f---semekikin.pdfIn PDF document text
    • http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088a6d3c63da---duropesibedesi.pdfIn PDF document text
    • https://pensiunea-escape.ro/ckfinder/userfiles/files/tezofenorazevobinoxixez.pdfIn PDF document text
    • http://voxel-avocats.fr/uploads/file/85600893040.pdfIn PDF document text
    • https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/hhvkgiv9qg4hg7ipmed7l6qod0/pijabul.pdfIn PDF document text
    • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/354dc50dd5f3ffa68bc9531d9ef8a564/vesavonefanopoxelupozo.pdfIn PDF document text
    • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a9c040223c---97038238571.pdfIn PDF document text
    • https://zoorichi.com/temp/fckeditor/file/33089753251.pdfIn PDF document text
    • http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/c4ab37167c1935650198a3b1051d93f1/tokimesizuvilujoniw.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=types+of+online+shopping+pdfPDF link annotation

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