Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f3a4a38514833be…

MALICIOUS

PDF

17.3 KB Created: 2019-08-02 07:37:45 +01:00 Authoring application: mPDF 5.7
MD5: cb671b66d216f29570b1da87b1f5b640 SHA-1: fefcc46aff8a7d8328f9b2fb4a3ed34419decb01 SHA-256: 4f3a4a38514833bed8b885fe89ce9cbf1089b5031264b69906571f98d904dcac
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, which suggests a link farm or redirection scheme. While the URLs themselves are currently classified as benign, the sheer volume and the ML classifier's high confidence score indicate malicious intent. The document body is heavily obfuscated, preventing a clear understanding of its direct purpose beyond hosting these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9787

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/9732734739731731/A-Dangerous-Game-Dangerous-to-Love-USA-Minnesota-23-by-Candace-Schuler.pdf
    • http://cefasfese.4pu.com/5739732732737732/Frankie-Dupont-and-the-Mystery-of-Enderby-Manor-The-Frankie-Dupont-Mystery-Book-1-by-Julie-Anne-Grasso.pdf
    • http://cefasfese.4pu.com/5739732731731730/Richard-DuPont-Terminal-Stage-by-Richard-Dupont.pdf
    • http://cefasfese.4pu.com/1730731731735735739/Dangerous-Love-by-Jane-Beaufort.pdf
    • http://cefasfese.4pu.com/2733732733732730/A-Love-So-Dangerous-To-the-Bone-1-by-Lili-Valente.pdf
    • http://cefasfese.4pu.com/3736734731734738/A-Dangerous-Love-Order-of-the-MoonStone-2-5-by-J-C-Morrows.pdf
    • http://cefasfese.4pu.com/6739736733730732/Dangerous-Love-Sweet-Valley-High-6-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/2733735734736735/The-Everlasting-Flame-A-Tale-of-Undying-Love-for-Each-Other-and-God-s-Word-in-a-Dangerous-Time-by-L-L-Chaikin.pdf
    • http://cefasfese.4pu.com/7732736735736730/In-the-Garden-of-Good-and-Evil-The-Love-and-Punishment-of-Choderlos-de-Laclos-in-Dangerous-Liaisons-by-K-J-Cleveland.pdf
    • http://cefasfese.4pu.com/1733732734735733/Dangerous-Passion-Dangerous-3-by-Lisa-Marie-Rice.pdf
    • http://cefasfese.4pu.com/4731735733737735/Dangerous-Crush-Dangerous-Noise-2-by-Crystal-Kaswell.pdf
    • http://cefasfese.4pu.com/4731735733737733/Dangerous-Encore-Dangerous-Noise-5-by-Crystal-Kaswell.pdf
    • http://cefasfese.4pu.com/1730733736731737/Dangerous-Submission-Dangerous-Affairs-2-by-Lori-Toland.pdf
    • http://cefasfese.4pu.com/1737730739738730/A-Dangerous-Man-The-Complete-Collection-A-Dangerous-Man-1-4-by-Serena-Grey.pdf
    • http://cefasfese.4pu.com/4731735733737732/Dangerous-Fling-Dangerous-Noise-4-by-Crystal-Kaswell.pdf
    • http://cefasfese.4pu.com/1739739735734733/A-Dangerous-Low-Dangerous-Low-Series-1-by-Michael-Stephenson.pdf
    • http://cefasfese.4pu.com/5739732732737733/Blasters-Handbook-by-Dupont.pdf
    • http://cefasfese.4pu.com/8735735736737737/Au-val-sans-retour-by-Christian-Dupont.pdf
    • http://cefasfese.4pu.com/5739732731731734/1001-Advertising-Tips-by-Luc-Dupont.pdf
    • http://cefasfese.4pu.com/5739732730733736/Angels-of-DuPont-Circle-by-LaVerne-E-Washington.pdf

Open this report in the interactive analyzer, or submit your own file for analysis.