Malicious PDF — malware analysis report

Static analysis result for SHA-256 08a398473ab5c157…

MALICIOUS

PDF

13.1 KB Created: 2019-05-07 04:39:47 +01:00 Authoring application: mPDF 5.7
MD5: 5d20108afd1bbe96b475758bb5dad74f SHA-1: 41c1f02b4161a8924d7edf6d570f3e156ab8d021 SHA-256: 08a398473ab5c157a99c3d35c91d02cdccf7567d3bc9767200bb25671a79c805
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a mass of external links, identified as a link farm, which is a common tactic for SEO manipulation or distributing malicious content. The heuristic 'PDF_SEO_LINK_FARM' and the presence of numerous embedded URLs strongly suggest this document's purpose is to redirect users to potentially harmful sites. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9006

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/9a00a03a04a01/Wide-Spaces-Wide-Awake-1-5-by-Shelly-Crane.pdf
    • http://muicuiu.dumb1.com/3a02a01a07a08a06/Wide-Awake-Every-Day-Wide-Awake-1-by-Starla-J-King.pdf
    • http://muicuiu.dumb1.com/2a09a00a01a05a04/Wide-Awake-Wide-Awake-1-by-Kade-Boehme.pdf
    • http://muicuiu.dumb1.com/7a01a05a05a08/The-Wide-Awake-Princess-by-E-D-Baker.pdf
    • http://muicuiu.dumb1.com/2a06a09a08a02a05/3am-and-Wide-Awake-by-Sarah-E-England.pdf
    • http://muicuiu.dumb1.com/4a08a00a04a01a05/The-Wide-Awake-Princess-by-Katherine-Paterson.pdf
    • http://muicuiu.dumb1.com/1a03a04a03a03a00/Wide-Awake-Academy-of-the-Fallen-1-by-Daniele-Lanzarotta.pdf
    • http://muicuiu.dumb1.com/1a00a01a06a05a01a06/Wide-Awake-A-Memoir-of-Insomnia-by-Patricia-Morrisroe.pdf
    • http://muicuiu.dumb1.com/1a00a05a05a01a07a07/Wide-Awake-A-Vampire-Romance-by-Jade-Cooper.pdf
    • http://muicuiu.dumb1.com/2a05a07a09a02a05/Immortal-Light-Wide-Awake-by-John-D-Sperry.pdf
    • http://muicuiu.dumb1.com/4a07a01a01a02a00/If-Wishes-Were-Horses-Wide-Open-Spaces-4-by-Judith-Duncan.pdf
    • http://muicuiu.dumb1.com/9a09a00a05a00/Wide-Open-Spaces-Beyond-Paint-by-Number-Christianity-by-Jim-Palmer.pdf
    • http://muicuiu.dumb1.com/3a05a04a08a09a06/Dream-Wide-Awake-Was-she-born-with-a-gift-or-a-curse-by-C-J-Zahner.pdf
    • http://muicuiu.dumb1.com/2a00a04a08a08a03/The-Bravest-Princess-Wide-Awake-Princess-3-by-E-D-Baker.pdf
    • http://muicuiu.dumb1.com/4a07a03a09a03/Wide-Sargasso-Sea-by-Jean-Rhys.pdf
    • http://muicuiu.dumb1.com/2a02a05a02a08a02/Wide-Sargasso-Sea-by-Jean-Rhys.pdf
    • http://muicuiu.dumb1.com/3a03a07a09a03/Wide-Sargasso-Sea-by-Jean-Rhys.pdf
    • http://muicuiu.dumb1.com/2a04a00a09a09a06/Wide-Sargasso-Sea-by-Jean-Rhys.pdf
    • http://muicuiu.dumb1.com/1a00a05a05a01a09a08/The-Wide-Mouthed-Frog-by-Scottie.pdf
    • http://muicuiu.dumb1.com/2a09a01a09a04/Wide-Open-by-Larry-Bjornson.pdf

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