Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0c079baf6eb687e…

MALICIOUS

PDF

14.5 KB Created: 2019-04-29 23:28:04 +01:00 Authoring application: mPDF 5.7
MD5: b1dec8783390859f41fd8633af6a78e8 SHA-1: f4264a7ed00b652c9c0846ffe390d4e71eaf5917 SHA-256: b0c079baf6eb687e1eb25d1ecdf602f3f8fc892435348cd7e1b92c3cbd38b471
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded URLs, forming a link farm. The ML classifier strongly indicated maliciousness. The primary attack pattern observed is the SEO link farm technique, designed to drive traffic to external resources. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of specific payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

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/1a02a06a04a08a05/Hunters-amp-Prey-Immortalis-2-by-Katie-Salidas.pdf
    • http://muicuiu.dumb1.com/1a02a08a01a09a03/Immortalis-Carpe-Noctem-Immortalis-1-by-Katie-Salidas.pdf
    • http://muicuiu.dumb1.com/1a02a03a02a05a01/Pandora-s-Box-Immortalis-3-by-Katie-Salidas.pdf
    • http://muicuiu.dumb1.com/1a07a08a07a01a00/Go-Publish-Yourself-by-Katie-Salidas.pdf
    • http://muicuiu.dumb1.com/1a04a03a08a08a00/Obsidian-Prey-Ghost-Hunters-6-by-Jayne-Castle.pdf
    • http://muicuiu.dumb1.com/1a07a00a02a03a08/Submission-Therapy-Consummate-Therapy-1-by-Katie-Salidas.pdf
    • http://muicuiu.dumb1.com/1a04a05a08a03a09/Pretty-Little-Werewolf-Little-Werewolf-1-by-Katie-Salidas.pdf
    • http://muicuiu.dumb1.com/1a08a02a01a09a04/Hunters-Interlude-Hunters-3-amp-4-by-Shiloh-Walker.pdf
    • http://muicuiu.dumb1.com/4a02a07a05a09a03/Bad-Cop-Immortalis-2-by-Angela-McCallister.pdf
    • http://muicuiu.dumb1.com/4a04a04a01a07a05/Bad-Cop-Immortalis-2-by-Angela-McCallister.pdf
    • http://muicuiu.dumb1.com/1a07a04a05a09a05/King-of-Prey-King-of-Prey-1-by-Mandy-M-Roth.pdf
    • http://muicuiu.dumb1.com/1a00a07a01a07a09a00/Null-Immortalis-Nemonymous-10-by-D-F-Lewis.pdf
    • http://muicuiu.dumb1.com/1a08a01a06a03a07/Bad-Mouth-Immortalis-1-by-Angela-McCallister.pdf
    • http://muicuiu.dumb1.com/3a06a06a03a08a01/Immortalis-Corona-The-Second-DemonWars-Saga-3-by-R-A-Salvatore.pdf
    • http://muicuiu.dumb1.com/4a01a02a07a02a07/The-Time-Hunters-and-the-Spear-of-Fate-Time-Hunters-3-by-Carl-Ashmore.pdf
    • http://muicuiu.dumb1.com/3a05a00a04a08a06/The-Time-Hunters-and-the-Box-of-Eternity-Time-Hunters-2-by-Carl-Ashmore.pdf
    • http://muicuiu.dumb1.com/1a07a00a08a03a02/Demon-Hunters-Trinity-Demon-Hunters-1-by-Olivia-Chase.pdf
    • http://muicuiu.dumb1.com/3a01a07a07a04/The-Cloud-Hunters-The-Cloud-Hunters-1-by-Alex-Shearer.pdf
    • http://muicuiu.dumb1.com/3a09a03a01a09a07/The-Reindeer-Hunters-Reindeer-Hunters-3-by-Joan-Wolf.pdf
    • http://muicuiu.dumb1.com/5a08a00a09a02/Treasure-Hunters-Treasure-Hunters-1-by-James-Patterson.pdf
    • http://muicuiu.dumb1.com/3a06a0

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