Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fa979315d59100f…

MALICIOUS

PDF

54.5 KB Created: 2021-09-09 10:30:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 029db918b7d8f3adc1b08565b31560ab SHA-1: 254d87ca690dc2a78e1112f39c60efaa45545795 SHA-256: 2fa979315d59100fa425e65ee539b8874a7511062aa85ec9ef856f20b6568d01
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous external URIs, indicating malicious intent. The ML classifier and ClamAV detection strongly suggest this is a phishing or trojan delivery mechanism. The document's structure as a link farm on disposable hosting further supports its use in distributing malicious content or conducting phishing attacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8855

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://ketchas.ru/uplcv?utm_term=caracteristicas+de+un+robot+androide PDF link annotation
    • http://anninh247.info/upload/files/6746470833.pdfIn PDF document text
    • http://helder-effect.nl/userfiles/file/mipanogabuli.pdfIn PDF document text
    • http://cosmeticdermatologymiamibeach.com/uploads/data/files/rurobojibekitetatideja.pdfIn PDF document text
    • http://merwepizza.com/upload/file/96650313881.pdfIn PDF document text
    • https://radekslodkiewicz.pl/files/file/povikajibon.pdfIn PDF document text
    • http://edukoc.net/userData/ebizro_board/file/zikezifefegojopegewoxexob.pdfIn PDF document text
    • https://bdata.vn/upload/files/tarimo.pdfIn PDF document text
    • https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/b20216edff283e4357d7e077ee2d6785/56677798769.pdfIn PDF document text
    • https://ylwlgwadmin.ylwl.cn/upload/files/30027716051.pdfIn PDF document text
    • http://touristclub.in/userfiles/file/30192294917.pdfIn PDF document text
    • https://wcfkenzi.com/ckfinder/userfiles/files/dibetuwobigiguzezari.pdfIn PDF document text
    • http://stfurnimart.com/file_media/file_image/file/dagepasikevufutudaxuxuruf.pdfIn PDF document text
    • http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16130233edde6d---4768689248.pdfIn PDF document text
    • http://www.satunatc.ac.th/ckfinder/userfiles/files/nakibafetazewapofete.pdfIn PDF document text
    • http://eprdel.cz/userfiles/file/gubuxawaziv.pdfIn PDF document text
    • https://alaqart.atelierleuthold.ch/userfiles/files/bigaponetanizosiresubodo.pdfIn PDF document text
    • https://pelicanfinancialnetwork.com/ckfinder/userfiles/files/dowovoxaguve.pdfIn PDF document text
    • http://sampoernastrategic.com/uploads/image/files/luputotipete.pdfIn PDF document text
    • http://modernplating.com/userfiles/file/21973331435.pdfIn PDF document text
    • http://garagehayashi.com/js/upload/files/63589933583.pdfIn PDF document text
    • http://vektor28.ru/userfiles/file/63395427553.pdfIn PDF document text
    • https://limadelimon.com/images/file/29842748189.pdfIn PDF document text
    • http://www.corazondelsol.es/ckfinder/userfiles/files/funifejutironazoloriwejuw.pdfIn PDF document text
    • http://umhouses.com/uploads/files/83406475749.pdfIn PDF document text