Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c36ed6a9ffb77ad…

MALICIOUS

PDF

19.9 KB Created: 2019-05-06 19:59:40 +01:00 Authoring application: mPDF 5.7
MD5: 2903fd6a832dbd3ac2d3e2e815ad7d94 SHA-1: cd8982e74fa8abdb923fb490d5e53aa0140158ad SHA-256: 4c36ed6a9ffb77ad2dfecc90d8ca5747d88c3ae08fb0c6a2932a7b4683b22926
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The ML classifier strongly indicated maliciousness. While no scripts were extracted, the PDF structure and embedded URLs suggest a delivery mechanism for potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9924

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://unieoooq.linkpc.net/44e14e94e14e64e2/King-s-Game-Origin-by-Nobuaki-Kanazawa-J-Ta-Yamada.pdf
    • http://unieoooq.linkpc.net/64e54e94e24e04e1/-7-8-Yamada-kun-to-7-nin-no-Majo-8-Yamada-kun-and-the-Seven-Witches-8-by-Miki-Yoshikawa.pdf
    • http://unieoooq.linkpc.net/64e54e94e24e84e3/-7-9-Yamada-kun-to-7-nin-no-Majo-9-Yamada-kun-and-the-Seven-Witches-9-by-Miki-Yoshikawa.pdf
    • http://unieoooq.linkpc.net/64e54e94e14e84e6/-7-2-Yamada-kun-to-7-nin-no-Majo-2-Yamada-kun-and-the-Seven-Witches-2-by-Miki-Yoshikawa.pdf
    • http://unieoooq.linkpc.net/64e54e94e24e94e4/-7-17-Yamada-kun-to-7-nin-no-Majo-17-Yamada-kun-and-the-Seven-Witches-17-by-Miki-Yoshikawa.pdf
    • http://unieoooq.linkpc.net/44e74e74e04e04e5/Origin-A-R-S-Volume-1-Origin-ARS-1-by-Scottie-Futch.pdf
    • http://unieoooq.linkpc.net/44e74e74e04e24e3/Origin-ARS-Volume-4-Origin-ARS-4-by-Scottie-Futch.pdf
    • http://unieoooq.linkpc.net/44e84e44e34e14e7/Game-Set-and-Match-by-Donna-King.pdf
    • http://unieoooq.linkpc.net/34e54e44e04e14e7/Gerald-s-Game-by-Stephen-King.pdf
    • http://unieoooq.linkpc.net/94e44e74e34e1/The-Hangman-s-Game-by-Karen-King-Aribisala.pdf
    • http://unieoooq.linkpc.net/24e94e14e04e04e8/The-Origin-The-Origin-1-by-Wilette-Youkey.pdf
    • http://unieoooq.linkpc.net/44e84e84e14e74e5/Hour-Game-Sean-King-amp-Michelle-Maxwell-2-by-David-Baldacci.pdf
    • http://unieoooq.linkpc.net/54e64e74e84e1/Hour-Game-Sean-King-amp-Michelle-Maxwell-2-by-David-Baldacci.pdf
    • http://unieoooq.linkpc.net/94e44e24e1/For-the-Sake-of-the-Game-Stories-Inspired-by-the-Sherlock-Holmes-Canon-by-Laurie-R-King.pdf
    • http://unieoooq.linkpc.net/14e44e34e14e54e5/The-Professor-the-Banker-and-the-Suicide-King-Inside-the-Richest-Poker-Game-of-All-Time-by-Michael-Craig.pdf
    • http://unieoooq.linkpc.net/24e64e84e44e84e5/The-Professor-the-Banker-and-the-Suicide-King-Inside-the-Richest-Poker-Game-of-All-Time-by-Michael-Craig.pdf
    • http://unieoooq.linkpc.net/94e94e14e1/What-Do-You-Do-with-an-Idea-by-Kobi-Yamada.pdf
    • http://unieoooq.linkpc.net/44e84e54e54e44e1/The-Kouga-Ninja-Scrolls-by-Futaro-Yamada.pdf
    • http://unieoooq.linkpc.net/24e24e84e84e04e6/In-Search-Of-A-Distant-Voice-by-Taichi-Yamada.pdf
    • http://unieoooq.linkpc.net/14e04e34e84e44e64e1/AI-Game-Engine-Programming-Game-Development-Series-Charles-River-Media-Game-Development-by-Brian-Schwab.pdf
    • http://unieoooq.linkpc.net/64e54e94e24e94e4/-7-17-Yamada-kun-to-7-nin-no-Majo-17-Yamada-kun-and-the-Seven-

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