Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fe09c69076450d4…

MALICIOUS

PDF

52.6 KB Created: 2021-01-23 16:44:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 01322889ead88ad8f0e9453e0a5163cd SHA-1: 69ff2980947731528017e358990e1448f9285dbf SHA-256: 3fe09c69076450d4580bac46f54b730fdb4268cd4227557aa319e6f85f6aa623
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6878

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffset.ru/aws?utm_term=black+desert+online+mobile+english PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4373511/normal_5ffc328fd53ac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366406/normal_5fe3a2cd63cd9.pdfIn PDF document text
    • https://site-1175584.mozfiles.com/files/1175584/bipofosulimuzewunin.pdfIn PDF document text
    • https://mipapipav.weebly.com/uploads/1/3/4/0/134012398/8b3d19ba4a.pdfIn PDF document text
    • https://site-1258740.mozfiles.com/files/1258740/format_windows_xp_without_cd_or_usb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484376/normal_5fed7445c09ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464995/normal_5fd0f469ce9b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366344/normal_5fdc448a58f09.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369316/normal_5fe33f196805a.pdfIn PDF document text
    • https://vawisopikev.weebly.com/uploads/1/3/2/7/132740649/wuzapedofizusumesid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494883/normal_600c0dc4e8a68.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/xoratexifagexi.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/94222942704.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/94423859876.pdfIn PDF document text

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