Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3f656ead4216a45…

MALICIOUS

PDF

13.1 KB Created: 2019-04-30 04:58:07 +01:00 Authoring application: mPDF 5.7 First seen: 2021-06-28
MD5: 7d975e84a3bbe9ae828d818b47d02db2 SHA-1: 7cf9c750b11b6306d2fa19012f8d61c0478fa610 SHA-256: f3f656ead4216a457246101ea70d20b092953ca950b8fa8356775ed65012e2cc
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified as a link farm, which is a common tactic for distributing malicious content or phishing lures. The ML classifier also flagged this PDF as malicious. While the document body contains a 'download' call-to-action, the primary malicious behavior appears to be the mass distribution of external links, potentially leading to malware downloads or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8891

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/1a01a06a00a00a06a07/Thor-MAX-Vikings-by-Garth-Ennis.pdf In PDF document text
    • http://muicuiu.dumb1.com/2a07a06a05a00a05/The-Pro-by-Garth-Ennis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a05a09a06a06a01/Fury-MAX-by-Garth-Ennis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a02a00a08a08/Crossed-Vol-1-by-Garth-Ennis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a03a02a08a01a08/Enemy-Ace-War-in-Heaven-by-Garth-Ennis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a05a05a06a04a08/Preacher-Book-5-by-Garth-Ennis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a04a01a04a09a00/The-Punisher-MAX-Vol-1-In-the-Beginning-by-Garth-Ennis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a03a08a05a03a03/Preacher-Volume-6-War-in-the-Sun-by-Garth-Ennis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a06a02a07a07a06/Fury-MAX-My-War-Gone-By-Volume-1-by-Garth-Ennis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a05a05a06a04a07/Preacher-Book-3-by-Garth-Ennis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a03a02a09a09a01/The-Punisher-MAX-Born-by-Garth-Ennis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a05a05a07a03a01/The-Punisher-MAX-Vol-5-The-Slavers-by-Garth-Ennis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a05a05a04a09a06/Rover-Red-Charlie-by-Garth-Ennis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a00a02a09a02/Preacher-Volume-1-Gone-to-Texas-by-Garth-Ennis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a03a08a07a03a08/Preacher-Volume-7-Salvation-by-Garth-Ennis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a04a03a02a01a01/The-Complete-Battlefields-Volume-One-by-Garth-Ennis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a03a07a02a00a05/Adventures-in-the-Rifle-Brigade-by-Garth-Ennis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a07a08a00a06/Hellblazer-Dangerous-Habits-by-Garth-Ennis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a08a00a00a04a08/Hellblazer-Tainted-Love-by-Garth-Ennis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a04a04a02a05a01/Adventures-in-the-Rifle-Brigade-by-Garth-Ennis.pdfIn PDF document text

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