Malicious PDF — malware analysis report

Static analysis result for SHA-256 82ffd4bc5e5b66ec…

MALICIOUS

PDF

16.1 KB Created: 2019-05-02 02:07:13 +01:00 Authoring application: mPDF 5.7
MD5: 88338c7d783e5d446400e41bfb630e3d SHA-1: b245fa06e39c6dde549d1959dcdcf60df84cb0af SHA-256: 82ffd4bc5e5b66ecd305b3648dcb6e6793475ccb95b50f3208a46e6b43bbed43
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier as malicious and contains a large number of external links, many of which are numeric slugs pointing to book-related PDFs. This suggests a link farm or SEO manipulation tactic. While the URLs themselves are currently marked as benign, the sheer volume and structure indicate a potentially malicious intent to drive traffic or distribute content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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://xiixmcuin.linkpc.net/3207205205208/The-Cairo-Trilogy-Palace-Walk-Palace-of-Desire-Sugar-Street-The-Cairo-Trilogy-1-3-by-Naguib-Mahfouz.pdf
    • http://xiixmcuin.linkpc.net/2207207208206201/The-Cairo-Trilogy-Palace-Walk-Palace-of-Desire-Sugar-Street-by-Naguib-Mahfouz.pdf
    • http://xiixmcuin.linkpc.net/4208209201209203/Novels-by-Naguib-Mahfouz-Palace-Walk-the-Journey-of-Ibn-Fattouma-the-Beggar-Midaq-Alley-the-Thief-and-the-Dogs-Children-of-Gebelawi-by-Naguib-Mahfouz.pdf
    • http://xiixmcuin.linkpc.net/1208207204205200/Sugar-Street-by-Naguib-Mahfouz.pdf
    • http://xiixmcuin.linkpc.net/4202203207203/The-Poisoned-Rose-The-Gin-Palace-Trilogy-1-by-Daniel-Judson.pdf
    • http://xiixmcuin.linkpc.net/3201206204206206/The-Poisoned-Rose-The-Gin-Palace-Trilogy-1-by-Daniel-Judson.pdf
    • http://xiixmcuin.linkpc.net/9201201207206202/Palace-of-Glass---Die-W-chterin-Palace-Saga-1-by-C-E-Bernard.pdf
    • http://xiixmcuin.linkpc.net/2208200207202206/Thebes-at-War-by-Naguib-Mahfouz.pdf
    • http://xiixmcuin.linkpc.net/4209200203200200/Miramar-by-Naguib-Mahfouz.pdf
    • http://xiixmcuin.linkpc.net/2203206209201205/Miramar-by-Naguib-Mahfouz.pdf
    • http://xiixmcuin.linkpc.net/5200205200200201/Children-of-Gebelawi-by-Naguib-Mahfouz.pdf
    • http://xiixmcuin.linkpc.net/4207207209201/The-Journey-of-Ibn-Fattouma-by-Naguib-Mahfouz.pdf
    • http://xiixmcuin.linkpc.net/8204204208207/The-Day-the-Leader-Was-Killed-by-Naguib-Mahfouz.pdf
    • http://xiixmcuin.linkpc.net/1201205204205209201/Echnaton-Der-in-der-Wahrheit-lebt-by-Naguib-Mahfouz.pdf
    • http://xiixmcuin.linkpc.net/9201204203207207/The-Seventh-Heaven-Supernatural-Tales-by-Naguib-Mahfouz.pdf
    • http://xiixmcuin.linkpc.net/1208207204209207/Voices-from-the-Other-World-Ancient-Egyptian-Tales-by-Naguib-Mahfouz.pdf
    • http://xiixmcuin.linkpc.net/9201208208209206/The-Man-Handler-by-Cairo.pdf
    • http://xiixmcuin.linkpc.net/3205204200200203/Three-Novels-Midaq-Alley-The-Thief-and-the-Dogs-Miramar-by-Naguib-Mahfouz.pdf
    • http://xiixmcuin.linkpc.net/6207206208201201/Cairo-by-Hermann-a-Peine.pdf
    • http://xiixmcuin.linkpc.net/4208203202200205/Circle-of-Change-by-Laney-Cairo.pdf

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