Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f199b754e6d926a…

MALICIOUS

PDF

15.9 KB Created: 2020-03-21 15:51:40 +00:00 Authoring application: mPDF 5.7
MD5: c6f92f758e52d5586a4cd2e44144a72f SHA-1: b9cbd4faf5c5c5f49a7f73dd027db8af41a9626d SHA-256: 8f199b754e6d926a74cdcdf00494bc2b62b9f9a69a178d7c00fa621ced6b5e8c
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to external PDF documents. The ML_NYX_PDF_MALICIOUS classifier also flagged this file with high confidence. The embedded URLs are likely used to distribute malicious content or for SEO spam. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9892

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://kitasdyu.myhome.cx/8874876879878/Get-the-Teacher-Sweet-Valley-Kids-46-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx/8875872874879/The-Big-Race-Sweet-Valley-Kids-37-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx/7875870871870/The-Halloween-War-Sweet-Valley-Kids-62-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx/6871879879873/The-Macaroni-Mess-Sweet-Valley-Kids-72-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx/8878876875873/Bossy-Steven-Sweet-Valley-Kids-18-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx/8876877874875/Elizabeth-and-Jessica-Run-Away-Sweet-Valley-Kids-31-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx/8876875875872/Left-Back-Sweet-Valley-Kids-32-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx/8873878876878/Jessica-Gets-Spooked-Sweet-Valley-Kids-43-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx/8879872879876/Crybaby-Lois-Sweet-Valley-Kids-11-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx/8870878876870/The-Magic-Puppets-Sweet-Valley-Kids-53-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx/7878876875878/Scaredy-Cat-Elizabeth-Sweet-Valley-Kids-61-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx/8878870871870/Starring-Winston-Egbert-Sweet-Valley-Kids-13-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx/8877874875877/Elizabeth-Meets-Her-Hero-Sweet-Valley-Kids-28-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx/5870875875878/Danger-Twins-at-Work-Sweet-Valley-Kids-76-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx/8871879877875/Lila-s-April-Fool-Sweet-Valley-Kids-48-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx/7876875875878/Lila-s-Birthday-Bash-Sweet-Valley-Kids-58-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx/2870871873870876/The-Patmans-of-Sweet-Valley-Sweet-Valley-High-Magna-Editions-12-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx/2870871873874874/The-Wakefields-of-Sweet-Valley-Sweet-Valley-High-Magna-Editions-1-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx/6879876876871870/Nowhere-to-Run-Sweet-Valley-High-25-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx/6879876876870877/Troublemaker-Sweet-Valley-High-47-by-Francine-Pascal.pdf
    • http://kitasdyu.myhome.cx

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