Malicious PDF — malware analysis report

Static analysis result for SHA-256 38f19222bd7302c0…

MALICIOUS

PDF

30.2 KB Created: 2019-04-30 04:50:28 +01:00 Authoring application: mPDF 5.7
MD5: c584b3eeac1ece77a5b61dec8934489f SHA-1: a031c0fdf582fdbbd5c8a1c922e18803a1890960 SHA-256: 38f19222bd7302c02ef23b928031111197ff47e93b03f5e8506e739fc22e19c0
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by an ML classifier as malicious and contains a large number of external links, suggesting a link farm or SEO poisoning attack. The embedded URLs point to academic-sounding PDF titles, likely to appear legitimate. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine the exact payload or further intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9689

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/1a00a02a02a03a02a01/Mediation-in-International-Relations-Multiple-Approaches-to-Conflict-Management-by-Rubin-Jeffrey-Z-Bercovitch-Jacob.pdf
    • http://muicuiu.dumb1.com/1a00a02a02a01a05a09/Mediation-In-International-Relations-Multiple-Approaches-To-Conflict-Management-by-Jacob-Bercovitch.pdf
    • http://muicuiu.dumb1.com/1a00a02a02a02a04a04/Conflict-Management-Security-and-Intervention-in-East-Asia-Third-Party-Mediation-in-Regional-Conflict-by-Jacob-Bercovitch.pdf
    • http://muicuiu.dumb1.com/1a00a02a02a02a04a02/Regional-Guide-To-International-Conflict-And-Management-From-1945-To-2003-by-Jacob-Bercovitch.pdf
    • http://muicuiu.dumb1.com/1a00a02a02a02a05a07/Anzus-in-Crisis-Alliance-Management-in-International-Affairs-by-Jacob-Bercovitch.pdf
    • http://muicuiu.dumb1.com/1a00a02a02a02a06a09/e-Study-Guide-for-The-Sage-Handbook-of-Conflict-Resolution-by-Jacob-Bercovitch-ISBN-9781412921923-by-Cram101-Textbook-Reviews.pdf
    • http://muicuiu.dumb1.com/8a09a08a09a06a08/Muslim-Arab-Mediation-and-Conflict-Resolution-Understanding-Sulha-by-Doron-Pely.pdf
    • http://muicuiu.dumb1.com/1a01a03a09a08a03a00/Power-Relations-Among-Actors-in-Development-Cooperation-Patterns-Concepts-and-Approaches-in-a-Japanese-Assisted-Teacher-Training-Project-in-Cambodia-by-Mitsuko-Maeda.pdf
    • http://muicuiu.dumb1.com/7a05a03a05a02a09/Bilateral-Relations-of-Guyana-Guyana-Russia-Relations-Guyana---United-States-Relations-Brazil-Guyana-Relations-Guyana-Venezuela-Relations-by-Books-LLC.pdf
    • http://muicuiu.dumb1.com/1a00a00a04a09a03a00/The-German-Labour-Management-Relations-Act-by-Martin-Peltzer.pdf
    • http://muicuiu.dumb1.com/3a03a00a00a04a09/Multiple-Sclerosis-A-Guide-to-Treatment-and-Management-by-Alan-J-Thompson.pdf
    • http://muicuiu.dumb1.com/6a01a03a08a04a03/Facing-the-Cognitive-Challenges-of-Multiple-Sclerosis-by-Jeffrey-N-Gingold.pdf
    • http://muicuiu.dumb1.com/9a06a02a09a04a04/Management-Technologies-for-E-Commerce-and-E-Business-Applications-13th-Ifip-IEEE-International-Workshop-on-Distributed-Systems-Operations-and-Management-Dsom-2002-Montreal-Canada-October-21-23-2002-Proceedings-by-Metin-Feridun.pdf
    • http://muicuiu.dumb1.com/5a01a08a09a03a02/The-Soviet-Study-of-International-Relations-by-Allen-Lynch.pdf
    • http://muicuiu.dumb1.com/7a09a04a01a08a04/Political-Theories-of-International-Relations-From-Thucydides-to-the-Present-by-David-Boucher.pdf
    • http://muicuiu.dumb1.com/8a05a00a04a01a09/As-It-Actually-Was-A-History-Of-International-Relations-Through-Documents-1823-1945-by-Michael-E-McGuire.pdf
    • http://muicuiu.dumb1.com/8a07a04a09a00a02/Making-Enemies-Humiliation-and-International-Conflict-by-Evelin-Lindner.pdf
    • http://muicuiu.dumb1.com/8a09a05a01a05a08/Puzzles-of-Politics-Inquiries-Into-the-Genesis-and-Transformation-of-International-Relations-by-Friedrich-Kratochwil.pdf
    • http://muicuiu.dumb1.com/8a09a05a01a04a09/The-Puzzles-of-Politics-Inquiries-Into-the-Genesis-and-Transformation-of-International-Relations-by-Friedrich-Kratochwil.pdf
    • http://muicuiu.dumb1.com/9a04a07a07a05a09/Handbook-on-Teaching-and-Learning-in-Political-Science-and-International-Relations-by-John-Ishiyama.pdf
    • http://muicuiu.dumb1.com/1a00a02a02a02a05a07/Anzus-in-Cri

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