Malicious PDF — malware analysis report

Static analysis result for SHA-256 e813426d8647cc00…

MALICIOUS

PDF

19.5 KB Created: 2019-04-30 04:34:28 +01:00 Authoring application: mPDF 5.7
MD5: 45f3b14bce048c4cdfd82c1c20a14358 SHA-1: d9668497c867b607374f977dc9fb9af9723319b4 SHA-256: e813426d8647cc004d951bdb36ffa2a0675ee62618c037201f4f1ef5ff2c3bcf
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to a single suspicious domain, identified by the PDF_SEO_LINK_FARM heuristic. While the ML classifier also flagged this PDF as malicious, no scripts were extracted, and the document body was heavily obfuscated. The primary attack vector appears to be directing users to a link farm, likely for SEO poisoning or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9940

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
    • http://muicuiu.dumb1.com/1a08a08a04a06a01/Singsation-by-Jacquelin-Thomas.pdf
    • http://muicuiu.dumb1.com/6a08a08a06a06a00/Only-for-You-The-Dugrandpres-of-Charleston-2-by-Jacquelin-Thomas.pdf
    • http://muicuiu.dumb1.com/6a02a06a04a05a06/The-Ideal-Wife-by-Jacquelin-Thomas.pdf
    • http://muicuiu.dumb1.com/2a01a06a07a04a04/Forever-My-Baby-The-Dugrandpres-of-Charleston-1-by-Jacquelin-Thomas.pdf
    • http://muicuiu.dumb1.com/3a09a03a00a05a09/Divine-Secrets-Divine-and-Friends-3-by-Jacquelin-Thomas.pdf
    • http://muicuiu.dumb1.com/7a06a05a08a03/Redemption-CD-Collection-Redemption-Remember-Return-Rejoice-Reunion-Redemption-1-5-by-Karen-Kingsbury.pdf
    • http://muicuiu.dumb1.com/2a05a01a07a04/A-Cowboy-s-Redemption-Cowboys-Of-The-Rio-Grande-1-by-Marin-Thomas.pdf
    • http://muicuiu.dumb1.com/4a04a02a02a02a07/Redemption-of-the-Duke-Brides-of-Redemption-3-by-Gayle-Callen.pdf
    • http://muicuiu.dumb1.com/2a01a08a09a01a03/Redemption-Redemption-1-by-Lindsey-Gray.pdf
    • http://muicuiu.dumb1.com/7a02a02a02a03/Redemption-Redemption-1-by-R-K-Ryals.pdf
    • http://muicuiu.dumb1.com/1a00a06a07a01a04/Redemption-Redemption-1-by-R-K-Ryals.pdf
    • http://muicuiu.dumb1.com/8a00a00a04a06a08/Max-s-Redemption-Redemption-2-by-L-Wilder.pdf
    • http://muicuiu.dumb1.com/4a02a05a02a01a01/The-Odd-Thomas-Series-4-Book-Bundle-Odd-Thomas-Forever-Odd-Brother-Odd-Odd-Hours-Odd-Thomas-1-4-by-Dean-Koontz.pdf
    • http://muicuiu.dumb1.com/1a02a03a02a06a00/The-Vampire-s-Redemption-Series-Collection-Parts-1-and-2-The-Vampire-Redemption-Series-by-Conrad-Powell.pdf
    • http://muicuiu.dumb1.com/9a08a05a02a05a07/Tess-of-the-D-urbervilles-by-Thomas-Hardy-Illustrated-Delphi-Parts-Edition-Thomas-Hardy-by-Thomas-Hardy.pdf
    • http://muicuiu.dumb1.com/9a08a05a02a08a09/Far-from-the-Madding-Crowd-by-Thomas-Hardy-Illustrated-Delphi-Parts-Edition-Thomas-Hardy-by-Thomas-Hardy.pdf
    • http://muicuiu.dumb1.com/1a05a01a01a01a04/Timeless-Thomas-How-Thomas-Edison-Changed-Our-Lives-by-Gene-Barretta.pdf
    • http://muicuiu.dumb1.com/6a07a05a06a02a04/The-Style-of-Connectedness-Gravity-s-Rainbow-and-Thomas-Pynchon-by-Thomas--Moore.pdf
    • http://muicuiu.dumb1.com/8a03a07a03a06a03/Thomas-Calculus-Early-Transcendentals-Single-Variable-by-George-B-Thomas-Jr-.pdf
    • http://muicuiu.dumb1.com/5a03a05a06a01a00/L-Utopie-Int-grale-Livres-1-et-2-de-Thomas-More-French-Edition-by-Thomas-More.pdf

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