Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f2b4afe64b1d281…

MALICIOUS

PDF

47.0 KB Created: 2021-07-06 12:10:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 94994ecbf0f36fddcba67eb93bceb524 SHA-1: ff7f7998fa7f43a6b7de61ea333e7c1ca758a500 SHA-256: 7f2b4afe64b1d2817bad8ef973e9e0cd9d46660248c24ecfe9dd1843b97865be
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 a link farm pointing to multiple compromised WordPress upload directories and disposable hosting sites, suggesting an attempt to distribute malicious content or phish users. The PDF structure and embedded links are indicative of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9450

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jp-cable.com/d/files/fojir.pdf In PDF document text
    • https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/240bc4bfb81046b168652f181694955b/810320202.pdfIn PDF document text
    • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/790a1954c2f854d9cca2937545e47012/votuwovo.pdfIn PDF document text
    • https://psychologgia.pl/Upload/file/zifot.pdfIn PDF document text
    • http://coinproject.com/userfiles/image/file/63282160173.pdfIn PDF document text
    • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/383e0039751a335f23926457671424a5/velavofabikiponerubare.pdfIn PDF document text
    • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1606fb65d46d73---zuxasojekudu.pdfIn PDF document text
    • http://redwoodpwr.com/wp-content/plugins/super-forms/uploads/php/files/ee28nkhc9e93h4s5d3dvj0id90/vobemomanolezesunikub.pdfIn PDF document text
    • https://sonarmusic.hu/up_image/file/33185174871.pdfIn PDF document text
    • https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/7e685804fec4fd1a897674b831312eae/vovuwijenonoraj.pdfIn PDF document text
    • https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1609e98e4d2940---tabatudig.pdfIn PDF document text
    • https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/sigizomisidivutof.pdfIn PDF document text
    • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d5663f617a5---91056670603.pdfIn PDF document text
    • https://aravlicraft.com/cmsCart//upload/file/89290498306.pdfIn PDF document text
    • http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/160db217738b13---86372277821.pdfIn PDF document text
    • http://fecoil.com/userfiles/file/sopolibexabakepevirulezar.pdfIn PDF document text
    • https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/48839e5b2977b38db28be67d235d8d87/78487706469.pdfIn PDF document text
    • https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607abceea157f---sabopoludef.pdfIn PDF document text
    • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/1609272f5267f1---54441950661.pdfIn PDF document text
    • https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a24f5a6defc---gijobiwoseza.pdfIn PDF document text
    • https://www.nosolodespedidas.es/wp-content/plugins/formcraft/file-upload/server/content/files/160bad42ac0835---42371839753.pdfIn PDF document text
    • http://laclonghotel.vn/upload/files/junemufetokovoxar.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=clash+of+clans+private+server+unlimited+troops+downloadPDF link annotation