Malicious PDF — malware analysis report

Static analysis result for SHA-256 5515b556e2cb4ae0…

MALICIOUS

PDF

15.3 KB Created: 2019-04-30 03:16:24 +01:00 Authoring application: mPDF 5.7
MD5: db14e48fbff2a9d02e3d02de83366280 SHA-1: 019a5b28b7a44b34764158d91ac62d558f0aed3e SHA-256: 5515b556e2cb4ae076de4c41e9b08feb9b7213849ed645ec8f84c8c14147459b
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a link farm. While the ML classifier flagged it as malicious, the specific intent appears to be SEO manipulation or directing users to potentially malicious content disguised as book downloads. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the exact payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9778

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/1a00a05a04a09a06a09/Right-Next-Door-by-A-J-Pryor.pdf
    • http://muicuiu.dumb1.com/8a05a08a06a07a02/The-Lazarus-Door-Who-would-choose-a-door-over-a-man-like-him-by-S-E-Lentz.pdf
    • http://muicuiu.dumb1.com/7a06a09a05a00a06/Aurealis-71-by-Michael-Pryor.pdf
    • http://muicuiu.dumb1.com/1a04a09a08a08a08/The-Porcupine-Mouse-by-Bonnie-Pryor.pdf
    • http://muicuiu.dumb1.com/3a00a01a09a03a09/Pryor-Rendering-A-Novel-by-Gary-Reed.pdf
    • http://muicuiu.dumb1.com/8a01a06a03a03a09/Door-to-Door-by-Mariam-Razek.pdf
    • http://muicuiu.dumb1.com/1a00a08a03a01a04/The-Portal-s-Choice-The-Gatekeepers-of-Em-pyrean-1-by-K-D-Pryor.pdf
    • http://muicuiu.dumb1.com/3a08a08a00a06a06/Gap-Year-in-Ghost-Town-by-Michael-Pryor.pdf
    • http://muicuiu.dumb1.com/3a06a04a05a01a00/Don-t-Shoot-The-Dog-The-New-Art-Of-Teaching-And-Training-by-Karen-Pryor.pdf
    • http://muicuiu.dumb1.com/2a00a05a03a09a05/Blood-Bound-Blackthorn-7-by-Lindsay-J-Pryor.pdf
    • http://muicuiu.dumb1.com/9a01a08a01a08a08/The-Faber-Book-of-Letters-by-Felix-Pryor.pdf
    • http://muicuiu.dumb1.com/3a01a06a02a02a09/Don-t-Shoot-the-Dog-The-New-Art-of-Teaching-and-Training-by-Karen-Pryor.pdf
    • http://muicuiu.dumb1.com/2a00a05a03a04a03/Blood-Torn-Blackthorn-3-by-Lindsay-J-Pryor.pdf
    • http://muicuiu.dumb1.com/4a04a03a02a08a04/Blood-Torn-Blackthorn-3-by-Lindsay-J-Pryor.pdf
    • http://muicuiu.dumb1.com/1a01a00a04a02a08a09/The-Portal-s-Choice-The-Gatekeepers-of-Em-pyrean-1-by-K-D-Pryor.pdf
    • http://muicuiu.dumb1.com/2a04a06a07a09a03/Hannah-Pritchard-Pirate-of-the-Revolution-by-Bonnie-Pryor.pdf
    • http://muicuiu.dumb1.com/5a02a06a08a09a05/The-Crypt-Thief-Hugo-Marston-2-by-Mark-Pryor.pdf
    • http://muicuiu.dumb1.com/4a00a08a04a06/Furious-Cool-Richard-Pryor-and-the-World-That-Made-Him-by-David-Henry.pdf
    • http://muicuiu.dumb1.com/3a01a06a02a02a03/Reaching-the-Animal-Mind-Clicker-Training-and-What-It-Teaches-Us-About-All-Animals-by-Karen-Pryor.pdf
    • http://muicuiu.dumb1.com/2a01a09a08a07a07/Demon-at-My-Door-Demon-at-My-Door-1-by-Michelle-A-Valentine.pdf

Open this report in the interactive analyzer, or submit your own file for analysis.