Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e0de3f080fab802…

MALICIOUS

PDF

17.3 KB Created: 2019-04-29 22:44:55 +01:00 Authoring application: mPDF 5.7
MD5: bd2b15d87b52d704b71d8d064769de47 SHA-1: 8e27df7f9e77f6ab21a16b23bc3f7e04314cd5e6 SHA-256: 2e0de3f080fab802df77fa0c80c94289bf2603a8c8719bdbfe6960e839372081
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, many of which are hosted on the domain 'muicuiu.dumb1.com'. This pattern is indicative of a link farm or a lure to a malicious site. The ML classifier also flagged this PDF as malicious with a high probability. No scripts were extracted, and the document body was unreadable, but the heuristic firings strongly suggest a malicious intent to redirect users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9787

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/1a00a01a06a03a02a03/Legacy-The-Way-3-by-Greg-Bear.pdf
    • http://muicuiu.dumb1.com/2a06a03a00a01/Sleepside-The-Collected-Fantasies-of-Greg-Bear-by-Greg-Bear.pdf
    • http://muicuiu.dumb1.com/3a02a05a05a07a04/Eon-The-Way-1-by-Greg-Bear.pdf
    • http://muicuiu.dumb1.com/2a04a05a07a08/Tangents-by-Greg-Bear.pdf
    • http://muicuiu.dumb1.com/4a09a09a04a02a04/Hegira-by-Greg-Bear.pdf
    • http://muicuiu.dumb1.com/3a09a02a03a07a01/Mariposa-A-Quantico-Novel-by-Greg-Bear.pdf
    • http://muicuiu.dumb1.com/1a04a08a05a09a05/Dinosaur-Summer-by-Greg-Bear.pdf
    • http://muicuiu.dumb1.com/2a04a05a09a04/Blood-Music-by-Greg-Bear.pdf
    • http://muicuiu.dumb1.com/2a06a07a07a05/The-Serpent-Mage-by-Greg-Bear.pdf
    • http://muicuiu.dumb1.com/9a06a08a00a04a03/Die-Schmiede-Gottes-Forge-of-God-1-by-Greg-Bear.pdf
    • http://muicuiu.dumb1.com/4a00a07a00a00/Songs-of-Earth-and-Power-by-Greg-Bear.pdf
    • http://muicuiu.dumb1.com/1a05a09a09a03a06/Anvil-of-Stars-Forge-of-God-2-by-Greg-Bear.pdf
    • http://muicuiu.dumb1.com/2a04a09a02a03/Moving-Mars-Queen-of-Angels-3-by-Greg-Bear.pdf
    • http://muicuiu.dumb1.com/9a00a03a02a03/Star-Wars-Rogue-Planet-by-Greg-Bear.pdf
    • http://muicuiu.dumb1.com/1a00a03a00a02a02a05/Multiverse-Exploring-Poul-Anderson-s-Worlds-by-Greg-Bear.pdf
    • http://muicuiu.dumb1.com/2a00a06a02a00a09/Eventide-of-the-Bear-The-Wild-Hunt-Legacy-3-by-Cherise-Sinclair.pdf
    • http://muicuiu.dumb1.com/8a07a00a05a09a04/King-s-Quest-Omnipedia---Kq3-Characters-Forbidden-Items-Places-Alexander-Baby-Bear-Bandits-Chickens-Fish-Gertrude-Graham-Gwydion-Lizard-Mama-Bear-Manannan-Medusa-Papa-Bear-Rosella-Rumplestiltskin-Squirrel-the-Oracle-Thor-by-Source-Wikia.pdf
    • http://muicuiu.dumb1.com/3a02a08a06a02a07/Bear-Seeking-Bride-Travis-Bear-Canyon-Brides-1-by-Ruby-Shae.pdf
    • http://muicuiu.dumb1.com/5a04a08a02a01a04/Bear-Witness-to-Murder-Shamelessly-Adorable-Teddy-Bear-Mystery-2-by-Meg-Macy.pdf
    • http://muicuiu.dumb1.com/1a08a04a06a05a02/The-Bear-Is-Back-In-Town-Return-To-Bear-Bluff-1-by-Harmony-Raines.pdf
    • http://muicuiu.dumb1.com/4a00a07a00a00/Songs-of-Earth-and-Power

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