Malicious PDF — malware analysis report

Static analysis result for SHA-256 c01d6e5cee5e89b9…

MALICIOUS

PDF

43.7 KB Created: 2021-09-23 08:18:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-22
MD5: 782cc02cb3a3f165dcf4974dc00b4591 SHA-1: e7babe32a2587f053002b6154d809b8c6d8c1106 SHA-256: c01d6e5cee5e89b9d3ece25348d66b5899634db9aca82d54d0f83664bafbb07c
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics, including ML classification and ClamAV, indicating malicious intent. The 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic suggests the document is designed to host numerous links on disposable domains, likely to facilitate phishing or malware distribution. While no scripts were explicitly extracted, the presence of many embedded URLs points towards an attack pattern focused on redirecting users to potentially harmful external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7977

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 https://nabijdefossa.nl/upload/files/7395862073.pdf In PDF document text
    • http://chiron-ventures.com/chiron/home/img/upload/files/210905142051625654gwktx.pdfIn PDF document text
    • http://ajitcoatings.com/uploads/9543278361.pdfIn PDF document text
    • http://sanmorales.es/userfiles/files/kexabezed.pdfIn PDF document text
    • https://cuatudongsaigon.net/uploads/files/wemanetuloluraloka.pdfIn PDF document text
    • http://cartopack.com/Images/file/sexofebisixofiwuvif.pdfIn PDF document text
    • https://kaskad-74.ru/images/uploads/guvudujokulizusumuru.pdfIn PDF document text
    • https://stephankeppel.com/userfiles/file/larafonulererijapa.pdfIn PDF document text
    • https://ximatinhdongnai.com/app/webroot/files/images/pages/files/tugogorebilekirojotofutu.pdfIn PDF document text
    • http://studioprogettoarchitettura.eu/userfiles/files/motafuwoxik.pdfIn PDF document text
    • http://ideal-site.ru/userfiles/file/zopekuvagagebozidabamisi.pdfIn PDF document text
    • https://atputasbaze.lv/images/userfiles/files/fizako.pdfIn PDF document text
    • https://spbmworld.com/anaeter_capital/siteadmin/userfiles/files/60266462606.pdfIn PDF document text
    • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613d3fc124f79---ganeli.pdfIn PDF document text
    • http://potentialdesign.cn/userfiles/file/1630957427.pdfIn PDF document text
    • http://educasters.co/ckfinder/userfiles/files/48518008746.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=gun+wala+game+downloadPDF link annotation

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