Malicious PDF — malware analysis report

Static analysis result for SHA-256 85057eb9885cd493…

MALICIOUS

PDF

19.1 KB Created: 2019-04-30 04:04:37 +01:00 Authoring application: mPDF 5.7
MD5: bda3862069d3d8d200ed0adb401baf44 SHA-1: 763de02f9d050ef53ece1727c6fe21a7bf959a83 SHA-256: 85057eb9885cd49301752bbefaf8b7db0269dc520b8a8775d88c7e8641d1218c
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which are presented as download buttons, suggesting a phishing or malware distribution attempt. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were explicitly extracted, the structure and heuristic firings indicate a malicious intent to redirect users to external content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/2a09a08a08a03/A-Congregation-of-Jackals-by-S-Craig-Zahler.pdf
    • http://muicuiu.dumb1.com/1a00a04a05a06a06a06/Tangos-and-Jackals-by-Chuck-Hemenway.pdf
    • http://muicuiu.dumb1.com/8a07a05a03a03a06/The-Congregation-by-Aric-Mitchell.pdf
    • http://muicuiu.dumb1.com/8a02a08a03a01/The-Thirteenth-Princess-by-Diane-Zahler.pdf
    • http://muicuiu.dumb1.com/2a06a05a08a02a06/The-Thirteenth-Princess-by-Diane-Zahler.pdf
    • http://muicuiu.dumb1.com/8a03a01a04a06/Princess-of-the-Wild-Swans-by-Diane-Zahler.pdf
    • http://muicuiu.dumb1.com/4a04a01a04a08a09/Send-In-The-Congregation-Stories-from-the-Foo-Fighters-Fans-by-Rachael-Gilliver.pdf
    • http://muicuiu.dumb1.com/8a01a06a07a05a03/The-Spirituality-of-Welcoming-How-to-Transform-Your-Congregation-Into-a-Sacred-Community-by-Ron-Wolfson.pdf
    • http://muicuiu.dumb1.com/4a02a03a04a06a04/The-Secret-History-of-the-American-Empire-Economic-Hit-Men-Jackals-amp-the-Truth-about-Corporate-Corruption-by-John-Perkins.pdf
    • http://muicuiu.dumb1.com/2a07a04a01a06a01/The-Secret-History-of-the-American-Empire-Economic-Hit-Men-Jackals-amp-the-Truth-about-Global-Corruption-by-John-Perkins.pdf
    • http://muicuiu.dumb1.com/7a01a03a01a01a08/A-Woman-Apostle-The-Venerable-Mother-Anne-Marie-Rivier-Foundress-of-the-Congregation-of-the-Presentation-of-the-Blessed-Virgin-Mary-1768-1838-by-Librairie-Beauchemin.pdf
    • http://muicuiu.dumb1.com/1a00a00a05a05a05a05/My-Little-Pony-Pony-Tales-Volume-1-My-Little-Pony-Micro-Series-1-6-by-Thomas-F-Zahler.pdf
    • http://muicuiu.dumb1.com/8a01a08a09a02a07/Cooking-with-Craig-Claiborne-and-Pierre-Franey-by-Craig-Claiborne.pdf
    • http://muicuiu.dumb1.com/1a01a05a06a05a09a05/Craig-Stadler-s-Secrets-of-the-Short-Game-by-Craig-Stadler.pdf
    • http://muicuiu.dumb1.com/2a08a02a09a01a07/Craig-Brown-s-GREATEST-HITS-by-Craig-Brown.pdf
    • http://muicuiu.dumb1.com/8a01a08a08a00a02/Craig-Claiborne-s-Southern-Cooking-by-Craig-Claiborne.pdf
    • http://muicuiu.dumb1.com/1a01a05a06a04a05a07/Craig-Stadler-s-Guide-to-Better-Golf-by-Craig-Stadler.pdf
    • http://muicuiu.dumb1.com/1a01a02a06a07a09/One-On-One-by-Craig-Brown.pdf
    • http://muicuiu.dumb1.com/1a01a06a08a00a05a05/DNA-by-W-Craig-Reed.pdf
    • http://muicuiu.dumb1.com/4a02a04a03a02a02/Somewhere-In-Between-by-Craig-Pospisil.pdf