Malicious PDF — malware analysis report

Static analysis result for SHA-256 b63cffb87cde19d7…

MALICIOUS

PDF

19.2 KB Created: 2020-03-18 17:44:29 +00:00 Authoring application: mPDF 5.7
MD5: 15b9aa6cf187e9df46427d5106aaa2e3 SHA-1: 7d021bf78168b76bb9e223e06254433bea4d7ee4 SHA-256: b63cffb87cde19d7ea6aa6f6a0527fc28801eed5f167b3bd7965148237c6311d
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious with high confidence. The document body consists of these URLs, suggesting the primary purpose is to redirect users to external sites, potentially for SEO spam or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

Heuristics 2

  • 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.
  • 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://ujcsiniio.myhome.cx/3cd4cd9cd9cd8cd5/The-Importance-of-Being-Wicked-Wicked-Family-Secrets-3-Millworth-Manor-2-by-Victoria-Alexander.pdf
    • http://ujcsiniio.myhome.cx/2cd9cd1cd4cd0cd8/What-Happens-At-Christmas-Millworth-Manor-1-by-Victoria-Alexander.pdf
    • http://ujcsiniio.myhome.cx/2cd3cd0cd7cd1cd9/A-Little-Bit-Wicked-Last-Man-Standing-1-by-Victoria-Alexander.pdf
    • http://ujcsiniio.myhome.cx/2cd0cd1cd3cd3cd2/Wicked-My-Love-Wicked-Little-Secrets-2-by-Susanna-Ives.pdf
    • http://ujcsiniio.myhome.cx/3cd1cd4cd0cd7cd0/Wicked-The-Life-and-Times-of-the-Wicked-Witch-of-the-West-Wicked-Years-1-by-Gregory-Maguire.pdf
    • http://ujcsiniio.myhome.cx/1cd4cd6cd6cd4cd4/His-Wicked-Games-His-Wicked-Games-1-The-Cunningham-Family-1-by-Ember-Casey.pdf
    • http://ujcsiniio.myhome.cx/3cd3cd5cd9cd3cd0/His-Wicked-Games-His-Wicked-Games-1-The-Cunningham-Family-1-by-Ember-Casey.pdf
    • http://ujcsiniio.myhome.cx/6cd0cd5cd0cd2cd5/Her-Wicked-Heart-Her-Wicked-Heart-1-The-Cunningham-Family-3-by-Ember-Casey.pdf
    • http://ujcsiniio.myhome.cx/5cd6cd7cd2cd5cd2/The-Lady-s-Wicked-Proposition-Wicked-Liaisons-series-by-Vivienne-Westlake.pdf
    • http://ujcsiniio.myhome.cx/2cd4cd9cd9cd3cd6/Tall-Dark-and-Wicked-Wicked-Trilogy-2-by-Madeline-Hunter.pdf
    • http://ujcsiniio.myhome.cx/1cd4cd4cd5cd4/The-Wicked-Wicked-Ladies-in-the-Haunted-House-by-Mary-Chase.pdf
    • http://ujcsiniio.myhome.cx/1cd4cd8cd6cd7cd9/Wicked-The-Complete-Series-Wicked-1-4-by-Lily-Graison.pdf
    • http://ujcsiniio.myhome.cx/1cd6cd8cd9cd0cd5/His-Wicked-Reputation-Wicked-Trilogy-1-by-Madeline-Hunter.pdf
    • http://ujcsiniio.myhome.cx/3cd8cd3cd7cd0cd3/Wicked-Bond-The-Wicked-Horse-5-by-Sawyer-Bennett.pdf
    • http://ujcsiniio.myhome.cx/3cd7cd7cd0cd4/Wicked-2-Legacy-amp-Spellbound-Wicked-3-4-by-Nancy-Holder.pdf
    • http://ujcsiniio.myhome.cx/4cd5cd3cd1cd0/Wicked-Ties-Wicked-Lovers-1-by-Shayla-Black.pdf
    • http://ujcsiniio.myhome.cx/1cd1cd8cd1cd0/The-Diamonds-of-Welbourne-Manor-Justine-and-the-Noble-Viscount-Annalise-and-the-Scandalous-Rake-Charlotte-and-the-Wicked-Lord-by-Diane-Gaston.pdf
    • http://ujcsiniio.myhome.cx/3cd7cd2cd2/Wicked-Beautiful-Wicked-Games-1-by-J-T-Geissinger.pdf
    • http://ujcsiniio.myhome.cx/9cd5cd0cd5cd2/Wicked-Fate-Wicked-1-by-Tabatha-Vargo.pdf
    • http://ujcsiniio.myhome.cx/3cd4cd1cd6cd4cd9/Wicked-Need-The-Wicked-Horse-3-by-Sawyer-Bennett.pdf
    • http://ujcsiniio.myhome.cx/3cd3cd5

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