Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e5d4980d49b2780…

MALICIOUS

PDF

13.1 KB Created: 2019-04-30 02:25:37 +01:00 Authoring application: mPDF 5.7
MD5: 8b27120a4211a0f4733564f01d1398e9 SHA-1: c35ee35dd725da23f8c4cc69c2d29f28f1bedee2 SHA-256: 1e5d4980d49b2780d844346fab48b5915e146302d418e16515b4a9837ac179cf
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links pointing to external PDF files hosted on the domain 'muicuiu.dumb1.com'. This pattern is indicative of a link farm designed to direct users to potentially malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, preventing a more detailed analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8891

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/4a03a02a08a01a08/Enemy-Ace-War-in-Heaven-by-Garth-Ennis.pdf
    • http://muicuiu.dumb1.com/2a03a01a08a02a01/Chronicles-Of-Wormwood-The-Last-Enemy-by-Garth-Ennis.pdf
    • http://muicuiu.dumb1.com/2a07a06a05a00a05/The-Pro-by-Garth-Ennis.pdf
    • http://muicuiu.dumb1.com/7a02a00a08a08/Crossed-Vol-1-by-Garth-Ennis.pdf
    • http://muicuiu.dumb1.com/3a05a09a06a06a01/Fury-MAX-by-Garth-Ennis.pdf
    • http://muicuiu.dumb1.com/2a03a02a09a09a01/The-Punisher-MAX-Born-by-Garth-Ennis.pdf
    • http://muicuiu.dumb1.com/1a04a01a04a09a00/The-Punisher-MAX-Vol-1-In-the-Beginning-by-Garth-Ennis.pdf
    • http://muicuiu.dumb1.com/1a05a05a04a09a06/Rover-Red-Charlie-by-Garth-Ennis.pdf
    • http://muicuiu.dumb1.com/7a05a05a06a04a08/Preacher-Book-5-by-Garth-Ennis.pdf
    • http://muicuiu.dumb1.com/1a01a06a00a00a06a07/Thor-MAX-Vikings-by-Garth-Ennis.pdf
    • http://muicuiu.dumb1.com/4a06a02a07a07a06/Fury-MAX-My-War-Gone-By-Volume-1-by-Garth-Ennis.pdf
    • http://muicuiu.dumb1.com/1a03a08a05a03a03/Preacher-Volume-6-War-in-the-Sun-by-Garth-Ennis.pdf
    • http://muicuiu.dumb1.com/7a05a05a07a03a01/The-Punisher-MAX-Vol-5-The-Slavers-by-Garth-Ennis.pdf
    • http://muicuiu.dumb1.com/7a05a05a06a04a07/Preacher-Book-3-by-Garth-Ennis.pdf
    • http://muicuiu.dumb1.com/3a08a00a00a04a08/Hellblazer-Tainted-Love-by-Garth-Ennis.pdf
    • http://muicuiu.dumb1.com/4a04a04a02a05a01/Adventures-in-the-Rifle-Brigade-by-Garth-Ennis.pdf
    • http://muicuiu.dumb1.com/3a09a00a06a09a05/The-Boys-Volume-7-The-Innocents-by-Garth-Ennis.pdf
    • http://muicuiu.dumb1.com/4a04a03a02a01a01/The-Complete-Battlefields-Volume-One-by-Garth-Ennis.pdf
    • http://muicuiu.dumb1.com/3a03a07a02a00a05/Adventures-in-the-Rifle-Brigade-by-Garth-Ennis.pdf
    • http://muicuiu.dumb1.com/1a03a08a07a03a08/Preacher-Volume-7-Salvation-by-Garth-Ennis.pdf

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