Malicious PDF — malware analysis report

Static analysis result for SHA-256 093db6fd470cde57…

MALICIOUS

PDF

68.4 KB Created: 2020-10-14 05:57:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 044ef3b6f1843d5e189ac828a529667a SHA-1: 700f8f07073a5b925493d6d90afd443275a6a13d SHA-256: 093db6fd470cde572b98d3884c035025d96f5097cee9ab5052bda0b260fa0e46
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://cctraff.ru/strik?keyword=list+of+adjectives+and+meanings+pdf'. The document body, though heavily obfuscated, appears to contain this URL, suggesting the file's primary purpose is to redirect users to this malicious site. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9547

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://cctraff.ru/strik?keyword=list+of+adjectives+and+meanings+pdf In PDF document text
    • https://site-1038874.mozfiles.com/files/1038874/26170772289.pdfIn PDF document text
    • https://site-1040777.mozfiles.com/files/1040777/12445755318.pdfIn PDF document text
    • https://site-1042672.mozfiles.com/files/1042672/xojeri.pdfIn PDF document text
    • https://site-1039958.mozfiles.com/files/1039958/39649766766.pdfIn PDF document text
    • https://site-1043055.mozfiles.com/files/1043055/benipuxilubinunobekideba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1c9ccc5-a1cf-4eea-b64f-823cef5f133a/zewuke.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af692fb2-f8da-4b41-875d-903158fd8ba6/829906134.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38896232-11c3-4cf5-917e-a51b135a2aca/jovovagutiwosomazabi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12c42d31-348d-4975-8b01-af45228f00e9/kexare.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d8c66d8-69ac-4935-a96d-3dd5bc6bb368/49761492985.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6324d93-a2ec-4048-84b2-f472c1815ec2/nebetanirixevejekubasosod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd870c96-1ad2-4128-8f37-a15c172ea9a2/zorozorus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45bf5cac-7953-4df7-9b3f-f48152b082e5/kelerimefegabagatorupajit.pdfIn PDF document text

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