Malicious PDF — malware analysis report

Static analysis result for SHA-256 abaa41b5c227e475…

MALICIOUS

PDF

17.3 KB Created: 2019-04-30 02:09:03 +01:00 Authoring application: mPDF 5.7
MD5: a562f9bf22aadaefee27d020ea924aa1 SHA-1: 28b9de37e3d6f5abd84372747192123c69e50bab SHA-256: abaa41b5c227e4755f44af3b80dfdcfda22fea99bc943c40cf53cefbcac120a7
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were extracted, the PDF structure and embedded URLs suggest a content-luring attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9787

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/4a08a01a06a02a08/She-Shall-Have-Murder-Jane-and-Dagobert-Brown-1-by-Delano-Ames.pdf
    • http://muicuiu.dumb1.com/3a07a02a09a09a08/For-Old-Crime-s-Sake-by-Delano-Ames.pdf
    • http://muicuiu.dumb1.com/8a02a01a08a02a09/American-Red-Cross-Text-Book-on-Home-Hygiene-and-Care-of-the-Sick-by-Jane-A-Delano.pdf
    • http://muicuiu.dumb1.com/3a06a05a05a05a04/Going-Postal-Rage-Murder-and-Rebellion-from-Reagan-s-Workplaces-to-Clinton-s-Columbine-and-Beyond-by-Mark-Ames.pdf
    • http://muicuiu.dumb1.com/6a06a09a04a06a03/The-Ames-Family-of-Bruton-Somerset-England-by-Faber-K-Ames.pdf
    • http://muicuiu.dumb1.com/8a08a03a05a06a05/Organized-for-Murder-Organized-1-by-Ritter-Ames.pdf
    • http://muicuiu.dumb1.com/6a01a06a00a03a04/Cherry-Ames-Boarding-School-Nurse-Cherry-Ames-17-by-Helen-Wells.pdf
    • http://muicuiu.dumb1.com/4a03a04a06a02a09/A-Forest-of-Corpses-Geography-of-Murder-2-by-P-A-Brown.pdf
    • http://muicuiu.dumb1.com/1a08a00a05a06a06/Cherry-Ames-Chief-Nurse-Cherry-Ames-4-by-Helen-Wells.pdf
    • http://muicuiu.dumb1.com/1a08a00a06a06a09/Cherry-Ames-Flight-Nurse-Cherry-Ames-5-by-Helen-Wells.pdf
    • http://muicuiu.dumb1.com/1a08a00a08a09a06/Cherry-Ames-Army-Nurse-Cherry-Ames-3-by-Helen-Wells.pdf
    • http://muicuiu.dumb1.com/2a03a04a06a06a07/Cherry-Ames-Cruise-Nurse-Cherry-Ames-9-by-Helen-Wells.pdf
    • http://muicuiu.dumb1.com/1a08a00a06a06a06/Cherry-Ames-Visiting-Nurse-Cherry-Ames-8-by-Helen-Wells.pdf
    • http://muicuiu.dumb1.com/3a08a05a05a06a04/Cherry-Ames-Jungle-Nurse-Cherry-Ames-25-by-Helen-Wells.pdf
    • http://muicuiu.dumb1.com/1a09a04a04a02a05/Murder-in-G-Major-Gethsemane-Brown-Mysteries-1-by-Alexia-Gordon.pdf
    • http://muicuiu.dumb1.com/3a01a03a08a01/Murder-in-G-Major-Gethsemane-Brown-Mysteries-1-by-Alexia-Gordon.pdf
    • http://muicuiu.dumb1.com/1a00a04a02a08a05a05/Dagobert-goes-to-the-dentist-by-Jean-Paul-Colemonts.pdf
    • http://muicuiu.dumb1.com/2a02a07a06a04a06/Shake-the-Devil-Off-A-True-Story-of-the-Murder-that-Rocked-New-Orleans-by-Ethan-Brown.pdf
    • http://muicuiu.dumb1.com/1a00a04a02a06a03a03/Onkel-Dagobert-Milliardenraub-in-Entenhausen-by-Carl-Barks.pdf
    • http://muicuiu.dumb1.com/4a00a04a05a06a09/The-Shortest-Day-Murder-at-the-Revels-Homer-Kelly-11-by-Jane-Langton.pdf
    • http://muicuiu.dumb1.com/4a03a04a06a02a09/A-Forest-of-C

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