Malicious PDF — malware analysis report

Static analysis result for SHA-256 01a9b269e5911f48…

MALICIOUS

PDF

13.1 KB Created: 2019-04-30 03:35:48 +01:00 Authoring application: mPDF 5.7 First seen: 2021-06-13
MD5: c5337020b944f067f249f6e86a135344 SHA-1: c8b5f69c5db8f7e385580dc90bc4f30d25a6c232 SHA-256: 01a9b269e5911f48b817c2240024fb79240b707652d373257fe7a47b22750851
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a link farm, which is a common tactic for SEO manipulation or distributing malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the presence of numerous external links suggests a potential for redirecting users to malicious sites or downloading further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8891

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/1a01a03a07a04a09a07/Shadows-of-Nemesis-Nemesis-Book-2-by-L-J-Martin.pdf In PDF document text
    • http://muicuiu.dumb1.com/4a01a09a07a08a08/Nemesis-The-Nemesis-Series-1-by-L-J-Martin.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a07a06a02a00/Nemesis-1-into-the-Shadows-by-Cathy-MacPhail.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a07a06a08a08a00/Mr-Pettigrew-The-Nemesis-Series-2-by-L-J-Martin.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a01a06a06a09a09/NemeSIS-by-Susan-Marshall.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a04a03a03a03a00/Nemesis-by-Mark-Millar.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a07a09a07a02a07/Nemesis-by-Bill-Napier.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a02a08a00a06a05/Nemesis-by-Philip-Roth.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a01a03a07a06a01a04/Nemesis-Out-of-the-Box-17-by-Robert-J-Crane.pdfIn PDF document text
    • http://muicuiu.dumb1.com/5a02a06a00a04/The-Nemesis-Vector-by-Bo-Demont.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a01a03a07a07a06a00/The-Nemesis-List-by-R-J-Frith.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a05a07a06a06a08/Nemesis-Indigo-1-by-Louise-Cooper.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a04a06a01a05a03/My-Nazi-Nemesis-by-Rich-DiSilvio.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a01a03a07a05a00a02/Grayson-Volume-3-Nemesis-by-Tim-Seeley.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a01a03a07a06a01a07/Nemesis-in-Spain-by-George-J-Thomas.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a04a07a06a00/The-Citizens-Jazz-Nemesis-1-by-L-M-Smith.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a02a06a05a06a09/Aetius-Attila-s-Nemesis-by-Ian-Hughes.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a03a03a05a01a03/Nemesis-Immortelle-1-by-Elle-Cross.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a02a00a06a01a08/Project-Nemesis-1-by-Jeremy-Robinson.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a08a08a03a01a01/Nemesis-Harry-Hole-4-by-Jo-Nesb-.pdfIn PDF document text

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