Malicious PDF — malware analysis report

Static analysis result for SHA-256 47c9709a1ea7aff7…

MALICIOUS

PDF

19.4 KB Created: 2019-05-01 07:33:33 +01:00 Authoring application: mPDF 5.7
MD5: 0bda220c23d1db72042d50e5dd35bc7b SHA-1: 10cddaee6a33fb49802710910692cb9742c8cbb8 SHA-256: 47c9709a1ea7aff77c6dbc0bb1bdac007be776f75b8d78edcb5a166dd04882d8
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or distribution mechanism. While the specific intent of these links is unclear due to the benign reputation of the initial URLs, the sheer volume and the ML classifier's high confidence indicate malicious intent. No scripts were extracted from this sample.

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://leakscaioiobook.4dq.com/2d0c4d0c3d0c3d0c6d0c7/Armored-by-John-Joseph-Adams.pdf
    • http://leakscaioiobook.4dq.com/1d0c5d0c4d0c3d0c8d0c5/Brave-New-Worlds-by-John-Joseph-Adams.pdf
    • http://leakscaioiobook.4dq.com/2d0c8d0c3d0c0d0c8d0c6/Operation-Arcana-by-John-Joseph-Adams.pdf
    • http://leakscaioiobook.4dq.com/4d0c9d0c2d0c6d0c5d0c7/Epic-Legends-of-Fantasy-by-John-Joseph-Adams.pdf
    • http://leakscaioiobook.4dq.com/2d0c4d0c6d0c0d0c9/Lightspeed-Magazine-June-2012-by-John-Joseph-Adams.pdf
    • http://leakscaioiobook.4dq.com/2d0c6d0c6d0c7d0c4/Lightspeed-Magazine-June-2013-by-John-Joseph-Adams.pdf
    • http://leakscaioiobook.4dq.com/2d0c5d0c9d0c8d0c2/Nightmare-Magazine-48-September-2016-by-John-Joseph-Adams.pdf
    • http://leakscaioiobook.4dq.com/9d0c7d0c4d0c8d0c7d0c1/Lightspeed-Magazine-October-2014-by-John-Joseph-Adams.pdf
    • http://leakscaioiobook.4dq.com/1d0c1d0c8d0c3d0c9d0c6d0c7/Lightspeed-Magazine-November-2010-by-John-Joseph-Adams.pdf
    • http://leakscaioiobook.4dq.com/7d0c9d0c9d0c7d0c1d0c0/What-the-amp-Is-That-The-Saga-Anthology-of-the-Monstrous-and-the-Macabre-by-John-Joseph-Adams.pdf
    • http://leakscaioiobook.4dq.com/1d0c7d0c8d0c7d0c6d0c8/Lightspeed-Magazine-September-2012-by-John-Joseph-Adams.pdf
    • http://leakscaioiobook.4dq.com/3d0c2d0c4d0c9d0c0d0c4/Loosed-upon-the-World-The-Saga-Anthology-of-Climate-Fiction-by-John-Joseph-Adams.pdf
    • http://leakscaioiobook.4dq.com/2d0c9d0c1d0c0d0c0d0c6/The-Mad-Scientist-s-Guide-to-World-Domination-Original-Short-Fiction-for-the-Modern-Evil-Genius-by-John-Joseph-Adams.pdf
    • http://leakscaioiobook.4dq.com/5d0c1d0c2d0c2d0c1d0c1/Legal-Papers-of-John-Adams-by-John-Adams.pdf
    • http://leakscaioiobook.4dq.com/2d0c4d0c1d0c6d0c1d0c9/Blood-Song-Blood-Singer-1-by-Cat-Adams.pdf
    • http://leakscaioiobook.4dq.com/3d0c6d0c7d0c4d0c3d0c9/The-Adams-Jefferson-Letters-The-Complete-Correspondence-Between-Thomas-Jefferson-and-Abigail-and-John-Adams-by-Lester-J-Cappon.pdf
    • http://leakscaioiobook.4dq.com/4d0c8d0c4d0c0d0c6d0c5/By-Blood-We-Live-by-Glen-Duncan.pdf
    • http://leakscaioiobook.4dq.com/1d0c7d0c3d0c8d0c5d0c8/By-Blood-We-Live-The-Last-Werewolf-3-by-Glen-Duncan.pdf
    • http://leakscaioiobook.4dq.com/1d0c1d0c3d0c3d0c8d0c4d0c5/Facebook-Live-Teach-Others-Earn-Live-Video-Courses-You-Create-And-Market-FB-Live-Adventure-Series-3-by-Kathy-Henn.pdf
    • http://leakscaioiobook.4dq.com/4d0c8d0c1d0c7d0c9d0c5/The-Isis-Collar-Blood-Singer-4-by-Cat-Adams.pdf
    • http://leakscaioiobook.4dq.com/1d0c7d0c8d0c7d0c6d0c8/Lightspeed-Magazine-September-2012-by-John-J