Malicious PDF — malware analysis report

Static analysis result for SHA-256 0949204f9d8b2b96…

MALICIOUS

PDF

18.3 KB Created: 2019-04-30 05:48:42 +01:00 Authoring application: mPDF 5.7
MD5: 7b74fbb41f4863b767a6ea4f1718d2fd SHA-1: 31356cc1ec3c9f0d31e219c391e4307771cfce7b SHA-256: 0949204f9d8b2b96e71365d194ae13e6ccd79604ad219fb87836fa840ff386f3
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of embedded URLs, forming a link farm. The ML classifier strongly indicates maliciousness, and the PDF structure suggests it's designed to redirect users to external content. While no scripts were explicitly extracted, the embedded URLs are the primary indicators of malicious intent, likely serving as a lure for further malicious downloads or phishing.

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://loaminoo.linkpc.net/9099095093097094/Treasury-of-World-Masterpieces-Mark-Twain-by-Mark-Twain.pdf
    • http://loaminoo.linkpc.net/9098095094092092/A-Connecticut-Yankee-in-King-Arthur-s-Court-by-Mark-Twain-Illustrated-Delphi-Parts-Edition-Mark-Twain-by-Mark-Twain.pdf
    • http://loaminoo.linkpc.net/5092093096092098/A-Connecticut-Yankee-in-King-Arthur-s-Court-Complete-by-Mark-Twain-Samuel-Clemens-by-Mark-Twain.pdf
    • http://loaminoo.linkpc.net/1090095093091097097/Joan-of-Arc-The-Collection-5-Collected-Works-by-Mark-Twain-Laura-E-Richards-Lord-Ronald-Gower-Lucy-Foster-Madison-and-Mrs-Oliphant-by-Mark-Twain.pdf
    • http://loaminoo.linkpc.net/4098096097099093/The-Devil-s-Race-Track-Mark-Twain-s-Great-Dark-Writings-by-Mark-Twain.pdf
    • http://loaminoo.linkpc.net/7097098092091092/Mark-Twain---Roughing-It-I-Did-Not-Attend-His-Funeral-But-I-Sent-a-Nice-Letter-Saying-I-Approved-of-It-by-Mark-Twain.pdf
    • http://loaminoo.linkpc.net/1090097095093098096/Mark-Twain-s-the-Prince-and-the-Pauper-A-Radio-Dramatization-by-Mark-Twain.pdf
    • http://loaminoo.linkpc.net/2094092090090090/A-Pen-Warmed-Up-in-Hell-Mark-Twain-in-Protest-by-Mark-Twain.pdf
    • http://loaminoo.linkpc.net/4094093092099096/The-Best-Short-Stories-of-Mark-Twain-by-Mark-Twain.pdf
    • http://loaminoo.linkpc.net/9099095091099090/The-Complete-Mark-Twain-Collection-by-Mark-Twain.pdf
    • http://loaminoo.linkpc.net/6095091098095091/The-Adventures-of-Tom-Sawyer-Mark-Twain-by-Mark-Twain.pdf
    • http://loaminoo.linkpc.net/6095098095092096/Mark-Twain-quot-Tom-Sawyer-und-Huckleberry-Finn-quot-by-Mark-Twain.pdf
    • http://loaminoo.linkpc.net/9099095093098090/The-Mark-Twain-Collection-by-Mark-Twain.pdf
    • http://loaminoo.linkpc.net/9099095092097092/The-Works-of-Mark-Twain-by-Mark-Twain.pdf
    • http://loaminoo.linkpc.net/9094094091096/The-Bible-According-to-Mark-Twain-by-Mark-Twain.pdf
    • http://loaminoo.linkpc.net/9099095091098099/The-Unabridged-Mark-Twain-by-Mark-Twain.pdf
    • http://loaminoo.linkpc.net/5094098094094/The-Autobiography-of-Mark-Twain-by-Mark-Twain.pdf
    • http://loaminoo.linkpc.net/8095098091090094/The-Adventures-of-Tom-Sawyer---World-s-Popular-Classics-Series-by-Mark-Twain.pdf
    • http://loaminoo.linkpc.net/2096094091091092/Eve-s-Diary-by-Mark-Twain.pdf
    • http://loaminoo.linkpc.net/6090097098097097/Tom-Sawyer-by-Mark-Twain.pdf