Malicious PDF — malware analysis report

Static analysis result for SHA-256 d950844453e2bf7f…

MALICIOUS

PDF

19.6 KB Created: 2019-04-30 04:25:52 +01:00 Authoring application: mPDF 5.7
MD5: 6b0b3455eb368a02875a895b790010ca SHA-1: 9f64afa8c4cb4c4c1302e3d957f2f1f09d712fa9 SHA-256: d950844453e2bf7f8af8d40b022f635c2730e4cbbaadff6b0032bd04f5a4c040
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The ML classifier strongly indicated maliciousness. While no scripts were extracted, the PDF structure and link farm heuristic suggest a delivery mechanism for potentially harmful 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.com/1a01a06a02a09/A-Cold-Creek-Noel-Cowboys-of-Cold-Creek-11-by-RaeAnne-Thayne.pdf
    • http://muicuiu.dumb1.com/3a04a05a06a03a01/A-Cold-Creek-Secret-Cowboys-of-Cold-Creek-7-by-RaeAnne-Thayne.pdf
    • http://muicuiu.dumb1.com/9a05a03a07/The-Pines-of-Winder-Ranch-A-Cold-Creek-Homecoming-A-Cold-Creek-Reunion-by-RaeAnne-Thayne.pdf
    • http://muicuiu.dumb1.com/3a04a02a01a04a04/Dancing-In-The-Moonlight-Cowboys-of-Cold-Creek-2-by-RaeAnne-Thayne.pdf
    • http://muicuiu.dumb1.com/4a05a02a08a06a09/Murder-At-Cold-Creek-College-Cold-Creek-1-by-Christa-Nardi.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/7a05a00a07a09a04/Le-rempart-du-mensonge---Nuit-d-hiver-Cold-Creek-Le-d-fi-des-Hollister-t-4-by-Beverly-Long.pdf
    • http://muicuiu.dumb1.com/3a07a04a02a08a00/A-Cadence-Creek-Christmas-Cadence-Creek-Cowboys-5-by-Donna-Alward.pdf
    • http://muicuiu.dumb1.com/4a03a03a08a07a03/The-Maverick-of-Copper-Creek-Copper-Creek-Cowboys-1-by-R-C-Ryan.pdf
    • http://muicuiu.dumb1.com/4a09a03a09a00a07/Holiday-in-Stone-Creek-A-Stone-Creek-Christmas-At-Home-in-Stone-Creek-Stone-Creek-4-amp-6-by-Linda-Lael-Miller.pdf
    • http://muicuiu.dumb1.com/5a00a02a07a03a07/Blackberry-Summer-by-RaeAnne-Thayne.pdf
    • http://muicuiu.dumb1.com/5a03a08a04a02a09/The-Cowboy-Inherits-a-Bride-The-Cowboys-of-Chance-Creek-0-5-by-Cora-Seton.pdf
    • http://muicuiu.dumb1.com/9a02a01a06a00a08/Truman-s-Spy-A-Cold-War-Spy-Thriller-by-Noel-Hynd.pdf
    • http://muicuiu.dumb1.com/2a02a05a01a03a01/Season-of-Wonder-Haven-Point-9-by-RaeAnne-Thayne.pdf
    • http://muicuiu.dumb1.com/1a01a09a03a06/High-Risk-Affair-by-RaeAnne-Thayne.pdf
    • http://muicuiu.dumb1.com/1a07a08a06a06a01/The-Cold-Cold-Ground-Detective-Sean-Duffy-1-by-Adrian-McKinty.pdf
    • http://muicuiu.dumb1.com/1a02a01a08a06a00/A-Cold-Day-in-Hell-Cold-Case-Investigation-1-by-Lissa-Marie-Redmond.pdf
    • http://muicuiu.dumb1.com/2a00a03a06a08/A-Cold-Dark-Place-Cold-Justice-1-by-Toni-Anderson.pdf
    • http://muicuiu.dumb1.com/4a01a07a08a01a05/Over-in-the-Arctic-Where-the-Cold-Winds-Blow-Where-the-Cold-Wind-Blows-Sharing-Nature-with-Children-Books-by-Marianne-Berkes.pdf
    • http://muicuiu.dumb1.com/3a01a08a09a03a00/Cold-Pursuit-Cold-Justice-2-by-Toni-Anderson.pdf
    • http://muicuiu.dumb1.com/7a

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