Malicious PDF — malware analysis report

Static analysis result for SHA-256 a69af25cfb8173ce…

MALICIOUS

PDF

14.1 KB Created: 2019-05-02 05:40:08 +01:00 Authoring application: mPDF 5.7
MD5: ac2b0c24538e885d1a5c250ff8230861 SHA-1: 0b00211409081801acbe205bb7f0895abb914897 SHA-256: a69af25cfb8173ce93cde158efc4b861036e7fae78663b8bb954566dc2f1a09f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded links pointing to external PDFs hosted on the domain 'cefasfese.4pu.com'. This behavior is indicative of a link farm or a lure to a malicious site, as flagged by the PDF_SEO_LINK_FARM heuristic. While the document body is heavily obfuscated and unreadable, the sheer volume of links and the suspicious domain suggest an attempt to direct users to potentially harmful content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

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://cefasfese.4pu.com/4736732732732/Saint-City-Sinners-Dante-Valentine-4-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/5731733732734/Dead-Man-Rising-Dante-Valentine-2-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/4734737731731736/Working-for-the-Devil-Dante-Valentine-1-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/4737731734736/Working-for-the-Devil-Dante-Valentine-1-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/4735734731738/The-Devil-s-Right-Hand-Dante-Valentine-3-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/2737731731735734/Taken-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/3732736737739737/Afterwar-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/3734738737732737/Agent-Zero-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/3732734732732734/Blood-Call-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/2737736733732735/Rose-amp-Thunder-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/1730731739732735737/Hunter-Healer-Society-2-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/1733732730739730/Storm-Watcher-The-Watchers-2-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/4732735734739732/Wasteland-King-Gallow-and-Ragged-3-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/1735739736737731/The-Red-Plague-Affair-Bannon-amp-Clare-2-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/6734732737733/Jill-Kismet-The-Complete-Series-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/7734738731739/Night-Shift-Jill-Kismet-1-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/3730736732730731/Hunter-s-Prayer-Jill-Kismet-2-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/2734736733738730/The-Bandit-King-Romances-of-Arquitaine-2-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/1736738732733735/The-Iron-Wyrm-Affair-Bannon-amp-Clare-1-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/3736737736732738/The-Iron-Wyrm-Affair-Bannon-amp-Clare-1-by-Lilith-Saintcrow.pdf
    • http://cefasfese.4pu.com/4732735734739732/Wasteland-King-Gallow-and-Ragged-3-by-Lilith

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