Malicious PDF — malware analysis report

Static analysis result for SHA-256 4622eb827143cef9…

MALICIOUS

PDF

16.6 KB Created: 2019-05-02 17:14:45 +01:00 Authoring application: mPDF 5.7
MD5: 70e4e2e0f95133d0b4de3a2e1ceee59d SHA-1: 8fd8eb8ed79dfdf897ebebf0a5fa37deba87f711 SHA-256: 4622eb827143cef9fe3e9f80c706a1c2a598c102bd74d6d027c8e1c9728255be
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier with high confidence and contains a large number of embedded URLs, forming a link farm. These URLs are likely used to redirect users to malicious content, a common tactic for phishing or malware distribution. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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/6a06a05a04a08/Home-At-Last-Chance-Last-Chance-2-by-Hope-Ramsay.pdf
    • http://muicuiu.dumb1.com/6a09a03a07a04/Last-Chance-Christmas-Last-Chance-4-by-Hope-Ramsay.pdf
    • http://muicuiu.dumb1.com/5a05a00a07a03/Last-Chance-Hero-Last-Chance-9-by-Hope-Ramsay.pdf
    • http://muicuiu.dumb1.com/6a00a03a01a01/Inn-at-Last-Chance-Last-Chance-7-by-Hope-Ramsay.pdf
    • http://muicuiu.dumb1.com/3a00a06a02a02a04/No-Chance-Last-Chance-Rescue-4-by-Christy-Reece.pdf
    • http://muicuiu.dumb1.com/4a05a08a07a09a03/Second-Chance-Summer-Chance-1-by-Emma-Hart.pdf
    • http://muicuiu.dumb1.com/3a06a09a00a05a06/Second-Chance-Noah-Chance-2-by-Robert-D-Bennett.pdf
    • http://muicuiu.dumb1.com/1a06a04a00a09a02/Chance-in-Hell-Chance-Lee-1-by-Patrick-Kampman.pdf
    • http://muicuiu.dumb1.com/5a01a00a03a07a02/Second-Chance-Reunion-Village-of-Hope-1-by-Merrillee-Whren.pdf
    • http://muicuiu.dumb1.com/4a04a00a04a02a08/The-Firefighter-s-Second-Chance-Sweet-Contemporary-Beach-Romance-Hawthorne-Harbor-Second-Chance-Romance-Book-3-by-Elana-Johnson.pdf
    • http://muicuiu.dumb1.com/2a06a03a04a07a09/Chance-for-Home-by-Traci-Hunter-Abramson.pdf
    • http://muicuiu.dumb1.com/4a08a09a04a01a00/One-More-Chance-Chance-2-by-T-Renee-Fike.pdf
    • http://muicuiu.dumb1.com/1a07a00a09a03a07/Last-Second-Chance-Second-Chance-1-by-Caisey-Quinn.pdf
    • http://muicuiu.dumb1.com/5a09a01a09a05a00/One-More-Chance-Chance-2-by-Abbi-Glines.pdf
    • http://muicuiu.dumb1.com/4a07a07a07a08a07/His-Second-Chance-Second-Chance-1-by-Stephanie-Lake.pdf
    • http://muicuiu.dumb1.com/5a00a00a01a07a01/Welcome-to-Last-Chance-A-Place-to-Call-Home-1-by-Cathleen-Armstrong.pdf
    • http://muicuiu.dumb1.com/2a07a03a00a02a01/Already-Home-Sons-of-Chance-6-2-by-Vicki-Lewis-Thompson.pdf
    • http://muicuiu.dumb1.com/2a00a02a07a04a01/Riding-Home-Sons-of-Chance-16-by-Vicki-Lewis-Thompson.pdf
    • http://muicuiu.dumb1.com/1a01a02a09a08/Miracle-on-Chance-Avenue-Love-on-Chance-Avenue-2-by-Jane-Porter.pdf
    • http://muicuiu.dumb1.com/3a04a05a06a04a09/The-Cowboys-of-Chance-Creek-Books-1-3-The-Cowboys-of-Chance-Creek-1-3-by-Cora-Seton.pdf
    • http://muicuiu.dumb1.com/4a04a00a04a02a08/The-Firefighter-s-S

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