Malicious PDF — malware analysis report

Static analysis result for SHA-256 480d413f3fcb3f4e…

MALICIOUS

PDF

16.7 KB Created: 2019-04-30 07:45:21 +01:00 Authoring application: mPDF 5.7
MD5: a0605af1b5d1c526e1e014d2c881ddb9 SHA-1: 6a19337e37e5a6cb92602e2af32361b5f12040e1 SHA-256: 480d413f3fcb3f4e7a39a27248a0d9bd168e4d4a04ce13cc0cda66bb30386141
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified as a link farm. While the document body is heavily corrupted, the presence of numerous links suggests a malicious intent to redirect users to external content. The ML classifier strongly supports the malicious verdict. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9913

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/8a09a02a06a00/In-the-Shadow-of-the-Warlock-Lord-The-Sword-of-Shannara-1-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/4a05a06a07a08a04/The-Heritage-of-Shannara-Books-One-and-Two-The-Scions-of-Shannara-The-Druid-of-Shannara-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/9a07a03a07a02a05/Die-Shannara-Chroniken-Die-Reise-der-Jerle-Shannara-1---Die-Elfenhexe-Roman-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/4a03a08a08a04a03/Dark-Wraith-of-Shannara-The-Original-Shannara-Trilogy-3-5-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/1a03a08a00a00a02/The-Wishsong-of-Shannara-The-Original-Shannara-Trilogy-3-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/1a01a00a06a09a08a00/La-espada-de-Shannara-Las-cr-nicas-de-Shannara---Libro-1-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/4a01a06a01a01/First-King-of-Shannara-The-Original-Shannara-Trilogy-0-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/4a07a00a07a05/The-Elf-Queen-of-Shannara-Heritage-of-Shannara-3-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/3a07a08a00a08a09/The-Scions-of-Shannara-Heritage-of-Shannara-1-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/4a05a06a03a00/The-Scions-of-Shannara-Heritage-of-Shannara-1-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/7a06a03a04a01/The-Elf-Queen-Of-Shannara-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/9a03a08a03a00/The-Talismans-of-Shannara-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/3a07a09a01a07a02/The-Talismans-Of-Shannara-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/4a05a06a07a08a02/The-World-of-Shannara-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/4a03a04a08a04a08/First-King-of-Shannara-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/8a07a09a01a09/The-Elf-Queen-Of-Shannara-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/4a08a01a09a03/Armageddon-s-Children-Genesis-of-Shannara-1-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/4a06a02a00a03a02/The-Skaar-Invasion-The-Fall-of-Shannara-2-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/4a04a07a00a08/Morgawr-The-Voyage-of-the-Jerle-Shannara-3-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/2a02a00a07a03a06/The-Black-Irix-Paladins-of-Shannara-3-by-Terry-Brooks.pdf
    • http://muicuiu.dumb1.com/4a01a06a01a01/Fir

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