Malicious PDF — malware analysis report

Static analysis result for SHA-256 761d2c3ad39439c2…

MALICIOUS

PDF

18.1 KB Created: 2019-05-09 00:18:25 +01:00 Authoring application: mPDF 5.7
MD5: 285f81547e605d4a68fe2fa8f6124465 SHA-1: c7e7358464b529b7daabd8bf3252526461e4a70b SHA-256: 761d2c3ad39439c287878649400940f167e11aa2b07c4c6281d780cc13d0b7f4
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs disguised as book titles, a technique often used for SEO poisoning or to redirect users to malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to lure the user into clicking through to potentially harmful external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

Heuristics 3

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/4a02a06a00a01a09/Mussolini-The-Rise-and-Fall-of-Il-Duce-by-Christopher-Hibbert.pdf
    • http://muicuiu.dumb1.com/4a00a02a05a05a03/The-Resistible-Rise-Of-Benito-Mussolini-by-Tom-Behan.pdf
    • http://muicuiu.dumb1.com/6a04a06a05a02a02/Versailles-by-Christopher-Hibbert.pdf
    • http://muicuiu.dumb1.com/3a09a04a08a00a04/The-Story-Of-England-by-Christopher-Hibbert.pdf
    • http://muicuiu.dumb1.com/3a02a02a01a09a04/Tower-of-London-by-Christopher-Hibbert.pdf
    • http://muicuiu.dumb1.com/4a04a06a05a02a05/The-Pope-and-Mussolini-The-Secret-History-of-Pius-XI-and-the-Rise-of-Fascism-in-Europe-by-David-I-Kertzer.pdf
    • http://muicuiu.dumb1.com/5a05a00a00a09a09/Napoleon-His-Wives-and-Women-by-Christopher-Hibbert.pdf
    • http://muicuiu.dumb1.com/5a05a00a00a07a07/Edward-VII-The-Last-Victorian-King-by-Christopher-Hibbert.pdf
    • http://muicuiu.dumb1.com/5a05a00a01a00a00/Charles-I-A-Life-of-Religion-War-and-Treason-by-Christopher-Hibbert.pdf
    • http://muicuiu.dumb1.com/4a03a06a04a07a00/Queen-Victoria-A-Personal-History-by-Christopher-Hibbert.pdf
    • http://muicuiu.dumb1.com/1a02a08a09a00a08/The-Life-and-African-Exploration-of-David-Livingstone-by-Christopher-Hibbert.pdf
    • http://muicuiu.dumb1.com/2a03a01a04a03a04/The-Virgin-Queen-Elizabeth-I-Genius-of-the-Golden-Age-by-Christopher-Hibbert.pdf
    • http://muicuiu.dumb1.com/2a05a08a04a08a09/The-Dragon-Wakes-China-and-the-West-1793-1911-by-Christopher-Hibbert.pdf
    • http://muicuiu.dumb1.com/1a00a09a00a01a05a02/A-Brief-History-of-the-Borgias-The-Bloodiest-Family-of-the-Italian-Renaissance-by-Christopher-Hibbert.pdf
    • http://muicuiu.dumb1.com/7a08a03a02a07/Let-the-Sky-Fall-Trilogy-Let-the-Sky-Fall-Let-the-Storm-Break-Let-the-Wind-Rise-by-Shannon-Messenger.pdf
    • http://muicuiu.dumb1.com/4a00a07a07a09a09/Africa-Explored-Europeans-on-the-Dark-Continent-1769-1889-by-Christopher-Hibbert.pdf
    • http://muicuiu.dumb1.com/1a04a04a06a02a00/Deeper-We-Fall-Fall-and-Rise-1-by-Chelsea-M-Cameron.pdf
    • http://muicuiu.dumb1.com/5a07a09a05/The-Rise-and-Fall-of-D-O-D-O-by-Neal-Stephenson.pdf
    • http://muicuiu.dumb1.com/2a08a01a04a01a05/The-Rise-amp-Fall-of-Great-Powers-by-Tom-Rachman.pdf
    • http://muicuiu.dumb1.com/7a05a00a01a05a06/The-Rise-and-Fall-of-the-Dil-Pickle-by-Franklin-Rosemont.pdf