Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f3e8c58f53e1690…

MALICIOUS

PDF

30.7 KB Created: 2019-05-07 04:38:47 +01:00 Authoring application: mPDF 5.7
MD5: 069b1162aef63a622df66c46c9fc1d53 SHA-1: c61d7ad1f16170e47ad69a3b929b3f7467edba7b SHA-256: 9f3e8c58f53e1690ac3e10b643481cd8762fb31753b9344b8421977574ef037b
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious sites. While the ML classifier flagged this as malicious, the specific URLs extracted were classified as benign. No scripts were extracted from this sample. The primary attack pattern observed is the hosting of a link farm within the PDF document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9670

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://muicuiu.dumb1.com/8a06a04a09a02a02/Economic-History-of-Sweden-Routledge-Explorations-in-Economic-History-by-Lars-Magnusson.pdf
    • http://muicuiu.dumb1.com/1a01a01a04a07a02a08/Economic-Effects-Of-The-French-Revolutionary-And-Napoleonic-Wars-Proceedings-Of-The-Tenth-International-Economic-History-Congress-Leuven-August-1990-Studies-In-Social-And-Economic-History-by-Eric-Aerts.pdf
    • http://muicuiu.dumb1.com/6a03a03a02a08a03/Economic-Determinism-Or-the-Economic-Interpretation-of-History-by-Lida-Parce.pdf
    • http://muicuiu.dumb1.com/8a05a09a00a07a02/The-Economic-history-of-world-population-by-Carlo-M-Cipolla.pdf
    • http://muicuiu.dumb1.com/1a04a02a07a06a06/False-Economy-A-Surprising-Economic-History-of-the-World-by-Alan-Beattie.pdf
    • http://muicuiu.dumb1.com/5a00a06a07a02a05/History-of-Star-Valley-Natural-Cultural-and-Economic-by-Orval-C-Harrison.pdf
    • http://muicuiu.dumb1.com/5a01a06a00a00a08/The-Building-of-Renaissance-Florence-An-Economic-and-Social-History-by-Richard-A-Goldthwaite.pdf
    • http://muicuiu.dumb1.com/5a01a00a07a04a01/The-Evolution-of-Retirement-An-American-Economic-History-1880-1990-by-Dora-L-Costa.pdf
    • http://muicuiu.dumb1.com/5a02a01a02a04a00/Holland-on-the-Hudson-An-Economic-and-Social-History-of-Dutch-New-York-by-Oliver-A-Rink.pdf
    • http://muicuiu.dumb1.com/3a07a00a07a07a06/Empire-of-Wealth-An-The-Epic-History-of-American-Economic-Power-by-John-Steele-Gordon.pdf
    • http://muicuiu.dumb1.com/4a02a03a04a06a04/The-Secret-History-of-the-American-Empire-Economic-Hit-Men-Jackals-amp-the-Truth-about-Corporate-Corruption-by-John-Perkins.pdf
    • http://muicuiu.dumb1.com/1a06a09a01a08a08/Balkan-Economic-History-1550-1950-From-Imperial-Borderlands-to-Developing-Nations-by-John-R-Lampe.pdf
    • http://muicuiu.dumb1.com/2a07a04a01a06a01/The-Secret-History-of-the-American-Empire-Economic-Hit-Men-Jackals-amp-the-Truth-about-Global-Corruption-by-John-Perkins.pdf
    • http://muicuiu.dumb1.com/5a00a09a03a02a06/Triumph-of-the-South-A-Regional-Economic-History-of-Early-Twentieth-Century-Britain-by-Peter-Scott.pdf
    • http://muicuiu.dumb1.com/5a01a00a02a07a01/A-Prelude-to-the-Welfare-State-The-Origins-of-Workers-Compensation-National-Bureau-of-Economic-Research-Series-on-Long-Term-Factors-in-Economic-Dev-by-Price-V-Fishback.pdf
    • http://muicuiu.dumb1.com/1a00a01a04a06a09a00/A-History-of-Corporate-Governance-Around-the-World-Family-Business-Groups-to-Professional-Managers-by-Morck-Randall-National-Bureau-of-Economic-Research.pdf
    • http://muicuiu.dumb1.com/1a01a01a04a08a01a06/Unemployment-and-Underemployment-in-Historical-Perspective-Proceedings-of-the-Tenth-International-Economic-History-Congress-Leuven-August-1990-Session-B-9-by-Eric-Aerts.pdf
    • http://muicuiu.dumb1.com/1a00a00a09a08a07a00/Economic-Analysis-of-International-Law-Contributions-to-the-XIIIth-Travemunde-Symposium-on-the-Economic-Analysis-of-Law-March-29-31-2012-by-Thomas-Eger.pdf
    • http://muicuiu.dumb1.com/8a08a09a04a02a09/Economic-History-of-India-1757-1966-1757-to-1966-by-Romesh-Chunder-Dutt.pdf
    • http://muicuiu.dumb1.com/4a00a03a07a05a04/The-History-of-Charles-XII-King-of-Sweden-by-Voltaire.pdf
    • http://muicuiu.dumb1.com/1a04a02a07a06a06

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