Malicious PDF — malware analysis report

Static analysis result for SHA-256 c04a5d63a3d05364…

MALICIOUS

PDF

20.1 KB Created: 2019-04-30 04:17:26 +01:00 Authoring application: mPDF 5.7
MD5: 5c0d63a08a6be2be1448e9e8c002fa32 SHA-1: 89d36fcac8f2c1a4bd03ebae35974a337c017a1b SHA-256: c04a5d63a3d053640020ced34fb2ff0af06a0ae4e4a8b1c861b35c090ab0484e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF documents, hosted on the domain 'muicuiu.dumb1.com'. This behavior is indicative of a link farm or a redirection scheme designed to lead users to potentially malicious content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, preventing a deeper analysis of the lure content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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/5a01a05a02a06a03/The-Ukrainian-Greek-Catholic-Church-And-The-Soviet-State-1939-1950-by-Bohdan-R-Bociurkiw.pdf
    • http://muicuiu.dumb1.com/7a01a08a00a02a03/The-Waters-of-Marah-The-Present-State-of-the-Greek-Church-by-Peter-Hammond.pdf
    • http://muicuiu.dumb1.com/3a02a03a01a04a04/Catholic-Christianity-A-Complete-Catechism-of-Catholic-Beliefs-Based-on-the-Catechism-of-the-Catholic-Church-by-Peter-Kreeft.pdf
    • http://muicuiu.dumb1.com/5a01a09a09a05a04/Agriculture-and-the-State-in-Soviet-and-Post-Soviet-Russia-by-Stephen-K-Wegren.pdf
    • http://muicuiu.dumb1.com/9a00a06a03a02/Before-the-Storm-Soviet-Ukrainian-Fiction-of-the-1920s-by-George-S-N-Luckyj.pdf
    • http://muicuiu.dumb1.com/4a06a08a07a02a09/The-Ukrainian-Language-in-the-First-Half-of-the-Twentieth-Century-1900-1941-Its-State-and-Status-by-George-Y-Shevelov.pdf
    • http://muicuiu.dumb1.com/1a06a09a01a03a02/Stalin-and-the-Bomb-The-Soviet-Union-and-Atomic-Energy-1939-1956-by-David-Holloway.pdf
    • http://muicuiu.dumb1.com/3a08a04a02a05a04/The-Catholic-Church-and-the-Jews-by-E-Michael-Jones.pdf
    • http://muicuiu.dumb1.com/9a04a08a03a07a06/Chaplet-of-the-Acts-of-Love-of-God-by-The-Catholic-Church.pdf
    • http://muicuiu.dumb1.com/1a01a09a04a02a08a04/Roman-Catholic-Church-in-Kongo-by-Jesse-Russell.pdf
    • http://muicuiu.dumb1.com/5a01a09a09a07a02/Catholic-Pirates-and-Greek-Merchants-A-Maritime-History-of-the-Mediterranean-by-Molly-Greene.pdf
    • http://muicuiu.dumb1.com/2a00a05a07a02a03/YOUCAT-The-Youth-Catechism-of-the-Catholic-Church-by-Christoph-Sch-nborn.pdf
    • http://muicuiu.dumb1.com/9a03a06a07a07a05/Managing-God-s-Organization-The-Catholic-Church-In-Society-by-Scott-R-Safranski.pdf
    • http://muicuiu.dumb1.com/5a00a06a06a03a00/Catholic-Vietnam-A-Church-from-Empire-to-Nation-by-Charles-Keith.pdf
    • http://muicuiu.dumb1.com/2a08a06a03a08/Split-A-Child-a-Priest-and-the-Catholic-Church-by-Mary-Dispenza.pdf
    • http://muicuiu.dumb1.com/1a01a07a00a04a03a08/On-the-Dignity-and-Vocation-of-Women-Mulieris-Dignitatem-by-The-Catholic-Church.pdf
    • http://muicuiu.dumb1.com/7a09a05a03a06a05/The-Catholic-Church-and-the-Holocaust-1930-1965-by-Michael-Phayer.pdf
    • http://muicuiu.dumb1.com/5a01a09a09a05a08/Industrial-Power-and-the-Soviet-State-by-Stephen-Whitefield.pdf
    • http://muicuiu.dumb1.com/7a03a08a05a07a07/Raised-by-the-Church-Growing-Up-in-New-York-City-s-Catholic-Orphanages-by-Edward-Rohs.pdf
    • http://muicuiu.dumb1.com/4a00a02a05a05a00/Render-Unto-Rome-The-Secret-Life-of-Money-in-the-Catholic-Church-by-Jason-Berry.pdf
    • http://muicuiu.dumb1.com/4a06a08a07a02