Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2fe86d428d81e17…

MALICIOUS

PDF

12.8 KB Created: 2019-05-07 04:53:25 +01:00 Authoring application: mPDF 5.7 First seen: 2021-06-17
MD5: bf004df707f27a45df166d7ff687ce87 SHA-1: 63777bf374562904b8c4e6f93f61add750e97d60 SHA-256: f2fe86d428d81e17dde09bce68b35dda83cca4309c59974c3d865c66cfc72aa0
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs disguised as a link farm, which is a common technique for SEO poisoning or distributing malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the structure suggests it may leverage PDF's scripting capabilities to facilitate the download of further content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9006

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/2a07a02a08a08a07/Looks-Over-Gives-Light-2-by-Rose-Christo.pdf In PDF document text
    • http://muicuiu.dumb1.com/7a01a07a00a03/The-Dogs-of-Balboa-by-Rose-Christo.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a06a05a08a04/King-of-the-Celts-by-Rose-Christo.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a05a07a01a07a08/The-Place-where-they-Cried-by-Rose-Christo.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a07a02a08a08a06/St-Clair-Gives-Light-3-by-Rose-Christo.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a03a01a06a07a03/Scent-of-a-White-Rose-The-Rose-Trilogy-1-by-Tish-Thawer.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a06a02a04a03/Scent-of-a-White-Rose-The-Rose-Trilogy-1-by-Tish-Thawer.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a06a05a09a04a09/Desert-Rose-The-Warriors-1-by-Laura-Taylor.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a01a09a02a08a01/Desert-Rose-The-Warriors-1-by-Laura-Taylor.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a04a08a04a04/Unborn-Unborn-1-by-Rose-Christo.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a00a07a02a08a01/Burglary-in-Buffalo-Butte-Buffalo-Butte-Mystery-3-by-Dorothy-Dayton.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a05a07a03a09a04/White-Rose-of-Night-by-Mel-Keegan.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a06a03a03a00a02/Snow-White-and-Rose-Red-by-Ed-McBain.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a06a09a07a03a03/White-Rose-of-Night-by-Mel-Keegan.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a05a01a06a04a09/The-White-Rose-by-Mary-Ann-Cook.pdfIn PDF document text
    • http://muicuiu.dumb1.com/5a00a00a00a07a00/White-Rose-of-Night-by-Mel-Keegan.pdfIn PDF document text
    • http://muicuiu.dumb1.com/5a00a05a08a09a05/White-Locks-Colorblind-2-by-Rose-B-Mashal.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a09a07a06a02a05/White-Rose-Rebel-by-Janet-Paisley.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a02a02a00a08a08/Sword-of-the-White-Rose-Mathesons-Book-4-by-J-Ardian-Lee.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a06a02a06a05/Black-Thorn-White-Rose-by-Ellen-Datlow.pdfIn PDF document text

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