Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4e64519a5bf8b4c…

MALICIOUS

PDF

18.7 KB Created: 2019-05-02 01:30:43 +01:00 Authoring application: mPDF 5.7
MD5: 7aa6a2e6ddd55fd97b5b4471881127f0 SHA-1: 1ad70745b3eb591dd460821c72ce61817f7a25b1 SHA-256: e4e64519a5bf8b4c6d8ed882a3c263257dfdf13eb98a9634d3a4122088a78825
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded links pointing to external PDF files on the domain 'muicuiu.dumb1.com'. This behavior is indicative of a link farm or a mechanism to distribute malicious content indirectly. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, limiting the ability to determine the exact payload or further actions.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/8a08a00a02a09a08/The-de-Riemer-Family-A-D-1640--1903-by-W-E-1839--De-Riemer.pdf
    • http://muicuiu.dumb1.com/8a08a00a03a08a04/The-de-Riemer-Family-A-D-1640--1903-A-D-1640--1903-by-William-Edward-De-Riemer.pdf
    • http://muicuiu.dumb1.com/8a08a00a02a02a00/Inferno-a-novel-by-Todd-Riemer.pdf
    • http://muicuiu.dumb1.com/8a08a00a03a03a03/Inferno-by-Todd-Riemer.pdf
    • http://muicuiu.dumb1.com/8a08a00a03a01a04/The-Habsburg-Caf-by-Andrew-Riemer.pdf
    • http://muicuiu.dumb1.com/8a08a00a03a08a01/European-Women-by-Eleanor-Riemer.pdf
    • http://muicuiu.dumb1.com/8a08a00a02a02a03/Inside-Outside-Life-Between-Two-Worlds-by-A-P-Riemer.pdf
    • http://muicuiu.dumb1.com/8a08a00a03a00a01/Jewish-Reflections-on-Death-by-Jack-Riemer.pdf
    • http://muicuiu.dumb1.com/8a08a00a04a01a03/A-Triangle-of-Tensions-U-S---Europe---Turkey-by-Andrea-Riemer.pdf
    • http://muicuiu.dumb1.com/8a08a00a02a02a04/Gnosis-and-Faith-in-Early-Christianity-by-Riemer-Roukema.pdf
    • http://muicuiu.dumb1.com/8a08a00a03a04a07/The-Diversity-Of-Laws-In-Origen-s-Commentary-On-Romans-by-Riemer-Roukema.pdf
    • http://muicuiu.dumb1.com/8a08a00a04a01a01/Xenophobie---Philoxenie-Vom-Umgang-Mit-Fremden-in-Der-Antike-by-Peter-Riemer.pdf
    • http://muicuiu.dumb1.com/8a08a00a03a01a06/Finding-God-in-Unexpected-Places-Wisdom-for-Everyone-from-the-Jewish-Tradition-by-Jack-Riemer.pdf
    • http://muicuiu.dumb1.com/8a08a00a03a00a03/Impress-Reader-Sommer-2015-Tauch-ein-in-bitters-e-Sommerromane-by-Martina-Riemer.pdf
    • http://muicuiu.dumb1.com/8a08a00a03a09a05/Tussen-Ooggetuigen-En-Erflaters-Denken-Over-Het-Erfgoed-Van-de-Tweede-Wereldoorlog-by-Riemer-Knoop.pdf
    • http://muicuiu.dumb1.com/8a08a00a04a01a08/Das-Spiel-Im-Spiel-Studien-Zum-Plautinischen-Agon-in-Trinummus-Und-Rudens-by-Peter-Riemer.pdf
    • http://muicuiu.dumb1.com/5a01a05a05a08a02/Atlantic-Africa-and-the-Spanish-Caribbean-1570-1640-by-David-Wheat.pdf
    • http://muicuiu.dumb1.com/7a04a08a07a06a07/The-Tale-of-Sinuhe-And-Other-Ancient-Egyptian-Poems-1940-1640-B-C-by-Unknown.pdf
    • http://muicuiu.dumb1.com/9a08a00a00a09a00/Life-of-Danton-by-A-H-Augustus-Henry-1839-190-Beesly.pdf
    • http://muicuiu.dumb1.com/9a08a00a02a06a01/Danton-and-Other-Verse-by-A-H-Augustus-Henry-1839-190-Beesly.pdf
    • http://muicuiu.dumb1.com/8a08a00a02a02a04/Gnosis-and-Faith-in-Early-Christianity-by-Riemer-Roukema

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