Malicious PDF — malware analysis report

Static analysis result for SHA-256 80090c75cd896f93…

MALICIOUS

PDF

19.6 KB Created: 2019-04-30 02:11:59 +01:00 Authoring application: mPDF 5.7
MD5: 82a2b498d6ebd88a0364a84fef38f15d SHA-1: a21b55d0c093d62bb50f5266fe13ff2cbcc36f37 SHA-256: 80090c75cd896f9399c126aedad80e0594d87d1aa3153e28f838308b9664b21b
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a link farm. While the document body is heavily obfuscated, the presence of numerous links suggests an attempt to manipulate search engine results or redirect users to malicious content. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

Heuristics 3

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/1a01a00a05a01a09a02/Magic-in-the-Air-Stardust-3-by-Linda-Chapman.pdf
    • http://muicuiu.dumb1.com/2a02a05a03a05a02/Believe-in-Magic-Stardust-2-by-Linda-Chapman.pdf
    • http://muicuiu.dumb1.com/1a00a07a09a07a06a06/Ferien-im-Palast-Sternenfohlen-19-by-Linda-Chapman.pdf
    • http://muicuiu.dumb1.com/1a01a03a06a04a01a01/Magische-Freundschaft-Sternenfohlen-3-by-Linda-Chapman.pdf
    • http://muicuiu.dumb1.com/8a07a04a02a06a06/Wolke-und-die-Waldgeister-Sternenfohlen-16-by-Linda-Chapman.pdf
    • http://muicuiu.dumb1.com/1a01a00a07a00a02a04/Eine-Freundin-f-r-Waldfee-Sternenschweif-50-by-Linda-Chapman.pdf
    • http://muicuiu.dumb1.com/3a01a00a00a09a01/An-Appetite-for-Crime---The-Memoirs-of-Former-Detective-Superintendent-Ron-Chapman-by-Ron-Chapman.pdf
    • http://muicuiu.dumb1.com/1a01a09a05a03/Prince-of-Magic-Children-of-the-Sun-1-by-Linda-Winstead-Jones.pdf
    • http://muicuiu.dumb1.com/9a03a05a01a07a02/Fairy-Tail-Fanon---Persona-Superior-Deus-Abyss-Break-Air-God-Slayer-Magic-Amaterasu-Magic-Seals-Arbiter-Poena-Arc-of-Embodiment-Arc-of-Possession-Arc-of-Time-Atma-Atom-Breaker-Awakening-Black-Feather-Magic-Bloody-Fang-Magic-Bullet-Magic-by-Source-Wikia.pdf
    • http://muicuiu.dumb1.com/3a00a08a05a04a03/Bread-Machine-Magic-139-Exciting-New-Recipes-Created-Especially-for-Use-in-All-Types-of-Bread-Machines-by-Linda-Rehberg.pdf
    • http://muicuiu.dumb1.com/2a05a05a06a02a00/Harnessing-Earth-Magic-A-Witch-s-Guide-to-Elemental-Magic-Elemental-Witchcraft-and-Magic-Book-3-by-Viivi-James.pdf
    • http://muicuiu.dumb1.com/8a05a08a00/Rust-amp-Stardust-by-T-Greenwood.pdf
    • http://muicuiu.dumb1.com/1a01a00a05a00a03a09/Stardust-by-Rania-Attafi.pdf
    • http://muicuiu.dumb1.com/2a08a04a02a00a01/Stardust-by-John-Gribbin.pdf
    • http://muicuiu.dumb1.com/4a01a05a02a01a04/Stardust-by-Neil-Gaiman.pdf
    • http://muicuiu.dumb1.com/2a02a09a04a07a08/Stardust-by-Neil-Gaiman.pdf
    • http://muicuiu.dumb1.com/4a01a03a05a06a06/Stardust-by-Neil-Gaiman.pdf
    • http://muicuiu.dumb1.com/4a00a08a03a05a03/Stardust-Spenser-17-by-Robert-B-Parker.pdf
    • http://muicuiu.dumb1.com/3a02a06/A-Touch-of-Stardust-by-Kate-Alcott.pdf
    • http://muicuiu.dumb1.com/4a06a01a09a08a07/A-Fall-of-Stardust-by-Neil-Gaiman.pdf

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