Malicious PDF — malware analysis report

Static analysis result for SHA-256 f62b17147ed9ce29…

MALICIOUS

PDF

57.5 KB Created: 2021-06-30 17:55:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 06c3e7e90ff2d8458c445918b4c27d78 SHA-1: 2337d7c583f54ed81ebab75ec74d63da74377a51 SHA-256: f62b17147ed9ce29a9ad9d63ce17f830ac8ea6d12d164eb1548d8a956ed94c95
154 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links, many pointing to compromised CMS uploads and disposable hosting, indicating it functions as a link farm. The primary purpose appears to be directing users to potentially malicious external websites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5801

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://p99.tw/pro_pic/files/fuwixiponoduresura.pdf In PDF document text
    • http://toddfamilyreunion.com/clients/4/48/482e924d5a052aa4a0c13eb8a30e0bc8/File/53058658195.pdfIn PDF document text
    • https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/42e3c19e9114d9739d4693469d0abf55/mikifutero.pdfIn PDF document text
    • http://orosweb.hu/ckfinder/userfiles/files/jibilomopiluperevo.pdfIn PDF document text
    • https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/df10eafd9a2fe3e48822586bc0637578/43462323232.pdfIn PDF document text
    • http://upbfassadenbau.com/upload/file/97786939790.pdfIn PDF document text
    • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609a244475bf8---duxubulojupoxavogowigix.pdfIn PDF document text
    • http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a17e09668bd---8553794982.pdfIn PDF document text
    • http://bbpcosmetics.com/admin/upFiles/2021-5/file/lelel.pdfIn PDF document text
    • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ab005dabac---vebubiwabezosifuwu.pdfIn PDF document text
    • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3160a2d384---kururilopunurakilafu.pdfIn PDF document text
    • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/55f8287b718c434b6b1149e916f4ecf8/53472840094.pdfIn PDF document text
    • http://gojjang.com/uploads/files/25464305202.pdfIn PDF document text
    • http://timebank.ru/sites/default/files/photos/pagefile/51368366118.pdfIn PDF document text
    • http://marthomaiticherukole.com/userfiles/file/74530838038.pdfIn PDF document text
    • http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/e72e2e441610afb8a4dff23a62a74c53/47147810927.pdfIn PDF document text
    • http://samuiluxurytravel.com/Uploads/file/gupedafolekolodofoki.pdfIn PDF document text
    • http://ydis.kr/userfiles/file/301304052610.pdfIn PDF document text
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cf34e151cf---44121095230.pdfIn PDF document text
    • https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a25eaeeb5bb---82196296541.pdfIn PDF document text
    • https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/lmp1l7m2bt427j9kuiujhhc9vf/nonotawubisubufozezari.pdfIn PDF document text
    • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16098ad761e241---55742681114.pdfIn PDF document text
    • https://condicionamentofisico.com/arquivos/file/zexif.pdfIn PDF document text
    • https://total-sport.pl/img/upload/files/rerafepozivowilopiwoxupov.pdfIn PDF document text
    • http://sistersaviopublicschool.com/userfiles/file/timexekitaniwelit.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=what+is+reasoning+in+cerPDF link annotation

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