Malicious PDF — malware analysis report

Static analysis result for SHA-256 df5432c2400faec0…

MALICIOUS

PDF

16.4 KB Created: 2019-04-30 08:43:10 +01:00 Authoring application: mPDF 5.7
MD5: 0013ef9f465845bac50b31eab79b530e SHA-1: 0e4a30b02dec9383d57022d4a8be4f36bf053996 SHA-256: df5432c2400faec06793af4de1a0a4859b6a7b7b1281354efb019a1e1d9f99c0
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm for SEO manipulation or to distribute malicious content. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious nature of the document. No scripts were extracted from this sample, and the document body was heavily corrupted, preventing a deeper analysis of its specific lure or payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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/2a02a09a01a06a04/Just-Drive-The-Car-Just-Drive-The-Car-1-by-Jesse-Hajicek.pdf
    • http://muicuiu.dumb1.com/6a04a00a00a07a00/The-Tagger-Herd-by-Gini-Roberge.pdf
    • http://muicuiu.dumb1.com/6a04a00a00a08a00/Handbook-of-Corrosion-Engineering-by-Roberge.pdf
    • http://muicuiu.dumb1.com/6a04a00a01a01a08/Corrosion-Basics-An-Introduction-by-Pierre-R-Roberge.pdf
    • http://muicuiu.dumb1.com/6a04a00a01a01a06/Handbook-of-Corrosion-Engineering-by-Pierre-R-Roberge.pdf
    • http://muicuiu.dumb1.com/6a04a00a01a01a07/Data-Structures-in-C-A-Laboratory-Course-by-James-Roberge.pdf
    • http://muicuiu.dumb1.com/6a04a00a01a08a05/Handbook-of-Tailless-Aircrafts-by-Katherina-Roberge.pdf
    • http://muicuiu.dumb1.com/6a04a00a01a01a03/Introduction-to-Programming-in-C-A-Laboratory-Course-by-James-Roberge.pdf
    • http://muicuiu.dumb1.com/6a04a00a01a01a05/Corrosion-Engineering-Principles-and-Practice-by-Pierre-R-Roberge.pdf
    • http://muicuiu.dumb1.com/1a04a01a06a02a03/A-Little-Love-a-Bit-of-Torture-by-Marie-Th-r-se-Roberge-Sorensen.pdf
    • http://muicuiu.dumb1.com/6a04a00a02a00a09/The-Tagger-Herd-Josey-Franklin-by-Gini-Roberge.pdf
    • http://muicuiu.dumb1.com/6a04a00a02a01a07/Handbook-of-Tailless-and-Push-Pull-Aircrafts-by-Katherina-Roberge.pdf
    • http://muicuiu.dumb1.com/6a04a00a01a08a07/The-Tagger-Herd-Epic-Reilly-Morgan-by-Gini-Roberge.pdf
    • http://muicuiu.dumb1.com/6a04a00a00a07a04/SNAFU-A-Hysterical-Memoir-About-Why-the-Government-Doesn-t-Work-by-Ellen-Roberge.pdf
    • http://muicuiu.dumb1.com/6a04a00a02a07a05/Contact-Center-Customer-Service-Excellence-Metrics-that-Matter-by-Ray-Roberge.pdf
    • http://muicuiu.dumb1.com/6a04a00a00a07a07/Snafu-A-Hysterical-Memoir-about-Why-the-Government-Doesn-t-Work-by-Ellen-Roberge.pdf
    • http://muicuiu.dumb1.com/6a04a00a02a07a08/Contact-Center-Customer-Service-Excellence-Metrics-That-Matter-by-Ray-Roberge.pdf
    • http://muicuiu.dumb1.com/6a04a00a02a02a00/Parcours-de-Six-Cohortes-Enfants-Et-Adolescents-Signales-a-la-Direction-de-La-Protection-de-La-Jeunesse-by-Pierre-Roberge.pdf
    • http://muicuiu.dumb1.com/1a01a07a05a04a00/The-Drive-by-S-J-Johnson.pdf
    • http://muicuiu.dumb1.com/9a06a07a05a00a05/Don-t-Let-the-Pigeon-Drive-the-Bus-by-Mo-Willems.pdf
    • http://muicuiu.dumb1.com/1a04a01a06a02a03/A-Li