Malicious PDF — malware analysis report

Static analysis result for SHA-256 e72d83c5571cc065…

MALICIOUS

PDF

21.3 KB Created: 2019-04-30 04:48:31 +01:00 Authoring application: mPDF 5.7
MD5: 09444f5fd3b82b331839e90f8a9ea194 SHA-1: 9c3c91c7960c2b88b5e6cec0d49a7aca92d147ca SHA-256: e72d83c5571cc0655cb3be9b775ae93799e1afa3eb70cdbd99852207533feb96
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded external links, identified as a link farm. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were extracted, the presence of numerous links to external resources suggests a delivery mechanism for further malicious content or a SEO poisoning attack. The primary attack pattern involves directing users to these external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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://muicuiu.dumb1.com/9a06a05a06a06a05/Eight-Stories-Tales-of-War-and-Loss-by-Erich-Maria-Remarque.pdf
    • http://muicuiu.dumb1.com/5a06a00a05a01a00/The-Last-Station-by-Erich-Maria-Remarque.pdf
    • http://muicuiu.dumb1.com/3a03a05a01a09/Three-Comrades-by-Erich-Maria-Remarque.pdf
    • http://muicuiu.dumb1.com/5a03a00a06a07a08/Die-nacht-in-Lissabon-by-Erich-Maria-Remarque.pdf
    • http://muicuiu.dumb1.com/9a07a09a07a03a04/All-Quiet-on-the-Western-Front-Job-by-Erich-Maria-Remarque.pdf
    • http://muicuiu.dumb1.com/5a04a03a00a04/Spark-of-Life-A-Novel-of-Resistance-by-Erich-Maria-Remarque.pdf
    • http://muicuiu.dumb1.com/1a09a00a02a06a09/All-Quiet-on-the-Western-Front-by-Erich-Maria-Remarque.pdf
    • http://muicuiu.dumb1.com/9a01a07a03a03a04/All-Quiet-on-the-Western-Front-by-Erich-Maria-Remarque.pdf
    • http://muicuiu.dumb1.com/3a03a07a04a09/Arch-of-Triumph-A-Novel-of-a-Man-Without-a-Country-by-Erich-Maria-Remarque.pdf
    • http://muicuiu.dumb1.com/9a06a05a07a04a02/All-Quiet-on-the-Western-Front-Erich-Maria-Remarque-by-SparkNotes.pdf
    • http://muicuiu.dumb1.com/9a06a05a05a06a08/Erich-Maria-Remarque-s-All-Quiet-on-the-Western-Front-by-Harold-Bloom.pdf
    • http://muicuiu.dumb1.com/1a01a05a08a06a06a05/Es-muss-einer-den-Frieden-beginnen-Jahrhundertautoren-gegen-den-Krieg-by-Erich-Maria-Remarque.pdf
    • http://muicuiu.dumb1.com/9a06a05a06a09a03/Monarch-Notes-on-Erich-Maria-Remarque-s-All-Quiet-on-the-Western-Front-by-John-S-White.pdf
    • http://muicuiu.dumb1.com/9a06a05a06a07a03/Opposite-Attraction-The-Lives-of-Erich-Maria-Remarque-and-Paulette-Goddard-by-Julie-Goldsmith-Gilbert.pdf
    • http://muicuiu.dumb1.com/9a06a05a07a03a06/All-Quiet-On-The-Western-Front-Erich-Maria-Remarque-World-War-I-History-In-Literature-The-Story-Behind-by-Peter-Guti-rrez.pdf
    • http://muicuiu.dumb1.com/1a00a02a04a08a07a04/Der-Einfluss-Des-Krieges-Auf-Die-Protagonisten-in--Das-Phantom-Des-Alexander-Wolf-Von-Gaito-Gasdanow-Und--Im-Westen-Nichts-Neues-Von-Erich-Maria-Remarque-by-M-Vey.pdf
    • http://muicuiu.dumb1.com/9a04a03a04a01a06/The-Dark-Interval-Letters-on-Loss-Grief-and-Transformation-by-Rainer-Maria-Rilke.pdf
    • http://muicuiu.dumb1.com/9a01a06a09a01a06/Even-Tales-Songs-and-Worldviews-by-Erich-Kasten.pdf
    • http://muicuiu.dumb1.com/8a08a01a06a07a06/Der-1-Weltkrieg-in-Der-Politischen-Literatur-Der-Weimarer-Republik-Ernst-Jungers-in-Stahlgewittern-Und-Erich-Maria-Remarques-Im-Westen-Nichts-Neues-by-Moritz-Sehn.pdf
    • http://muicuiu.dumb1.com/4a02a03a08a02a08/The-Chintz-Age-Tales-of-Love-and-Loss-for-a-New-New-York-by-Ed-Hamilton.pdf
    • http://muicuiu.dumb1.com/9a06a05a05a06a0

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