Malicious PDF — malware analysis report

Static analysis result for SHA-256 15494f1579eb0306…

MALICIOUS

PDF

49.9 KB Created: 2021-09-18 20:03:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: a68cf55e77560691fa4bf1dc1c4ca3c3 SHA-1: 67b6039c8408a83d6a7fd4a85cc44aba640c044e SHA-256: 15494f1579eb03064b77d627cdb68d933b40d4e43b7e06636fb4237d592af136
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many pointing to disposable domains, which is characteristic of a link farm used for phishing or distributing further malware. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5887

Heuristics 4

  • 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.
  • 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://amsasecretariat.fr/userfiles/file/4435120820.pdf In PDF document text
    • http://fcvperu.org/data/fcvperu/userfiles/file/91258546749.pdfIn PDF document text
    • http://tofuyatogo.com/uploads/files/17643558623.pdfIn PDF document text
    • http://newcityhk.com/userfiles/82263347841.pdfIn PDF document text
    • http://rc-mst.com/mst/_upload/files/dolevejimu.pdfIn PDF document text
    • http://tugrabilgisayar.net/resimler/files/wovimamulexo.pdfIn PDF document text
    • http://showplus.ae/userfiles/files/rogerit.pdfIn PDF document text
    • https://philly.drinkpoint.com/uploads/files/xikerunujo.pdfIn PDF document text
    • http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1612f2902e678e---36346526597.pdfIn PDF document text
    • https://ecoquimica.cl/dinamicos/uploads/file/32263682830.pdfIn PDF document text
    • http://fairbank-ia.org/admin/ckfinder/userfiles/files/zujekejipo.pdfIn PDF document text
    • http://15881588.com/ckupload/files/16068202017.pdfIn PDF document text
    • https://sapsda.com/SapmaUserfiles/file/84619618667.pdfIn PDF document text
    • https://www.serwkom.pl/plugins/ckfinder/userfiles/files/xubeduzuwibija.pdfIn PDF document text
    • http://heryeryesil.com/resimlerfiles/kavinisaxoxizifalulozilen.pdfIn PDF document text
    • https://leavereview.com/customerinterview/ckfinder/userfiles/files/rojidusora.pdfIn PDF document text
    • https://bhsbeacon.com/FCKeditor/file/14673197424.pdfIn PDF document text
    • http://thaymanhinhlaptop.com/userfiles/file/kaxalesakubi.pdfIn PDF document text
    • https://etre-cheval.fr/Applications/MAMP/htdocs/etre%20cheval/news_pix/file/63637758847.pdfIn PDF document text
    • http://superfishinglewood.com/uploads/files/fefeba.pdfIn PDF document text
    • https://festival.bg/fckeditorfiles/file/95556737383.pdfIn PDF document text
    • http://sendedianqi.com/upload_fck/file/2021-9-4/20210904225743617242.pdfIn PDF document text
    • https://e-ssuances.com/ckfinder/userfiles/files/visamejewilujazimosu.pdfIn PDF document text
    • https://optimustelecoms.com/ckfinder/userfiles/files/fotomole.pdfIn PDF document text
    • https://fptica.ru/images/file/wolebipip.pdfIn PDF document text
    • http://bertoniamministrazione.it/bertoni/public/file/31654398086.pdfIn PDF document text
    • https://milkywayads.com/webroot/img/files/94418153600.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=windows+10+home+android+emulatorPDF link annotation

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