Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b44973d8105a481…

MALICIOUS

PDF

12.9 KB Created: 2019-05-03 06:08:37 +01:00 Authoring application: mPDF 5.7
MD5: 32651700b73768fae5d1835552621175 SHA-1: a5261c85237a3f32c097e6f9b2c05dc000ceceb9 SHA-256: 6b44973d8105a481e1f5cc23b6d7fe738cd1cc7acc16703c45cc401681b0dee8
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, indicative of a link farm or SEO poisoning tactic. The ML classifier also flagged this document as malicious. While no scripts were extracted, the sheer volume of links suggests an attempt to drive traffic or potentially distribute further malicious content through these external resources.

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/3a01a00a07a08a00/This-Blood-Grace-Allen-1-by-Alisha-Basso.pdf
    • http://muicuiu.dumb1.com/2a04a00a05a02a00/The-Grace-Allen-Series-Set-Books-1-amp-2-by-Alisha-Basso.pdf
    • http://muicuiu.dumb1.com/7a00a00a03a05a09/Blood-of-the-Revenant-by-N-R-Allen.pdf
    • http://muicuiu.dumb1.com/4a02a07a07a09a05/Blood-For-Blood-by-D-S-Allen.pdf
    • http://muicuiu.dumb1.com/4a03a05a08a07a08/Grace-amp-Beauty-Blood-and-Light-Vampire-5-by-Rue-Volley.pdf
    • http://muicuiu.dumb1.com/3a09a09a02a03a03/The-Top-of-the-Pizzas-by-Bill-Basso.pdf
    • http://muicuiu.dumb1.com/5a09a08a00a01a02/The-Golem-Triptych-by-Eric-Basso.pdf
    • http://muicuiu.dumb1.com/3a07a03a04a00a01/Tis-the-Season-to-Be-Sinful-by-Adrienne-Basso.pdf
    • http://muicuiu.dumb1.com/1a01a02a02a08a09a02/Sweet-Sensations-by-Adrienne-Basso.pdf
    • http://muicuiu.dumb1.com/3a04a08a09a01a07/Bad-Traffick-Leine-Basso-2-by-D-V-Berkom.pdf
    • http://muicuiu.dumb1.com/1a06a01a02a09/The-Light-Infantry-Ball-by-Hamilton-Basso.pdf
    • http://muicuiu.dumb1.com/9a06a06a01a02/Cargo-Leine-Basso-Thrillers-4-by-D-V-Berkom.pdf
    • http://muicuiu.dumb1.com/9a07a02a09a05/Allen-K-s-Inhuman-Magazine-Issue-5-Fall-2011-by-Allen-Koszowski.pdf
    • http://muicuiu.dumb1.com/2a07a02a02a01a00/Love-Me-Back-The-Basso-Brothers-1-by-Michelle-Lynn.pdf
    • http://muicuiu.dumb1.com/1a09a04a09a08a01/A-Matter-of-Time-Angel-Sight-3-by-Lisa-M-Basso.pdf
    • http://muicuiu.dumb1.com/3a07a03a05a06a00/Seven-by-Alisha-Jade.pdf
    • http://muicuiu.dumb1.com/4a07a04a03a05a00/The-Summoner-by-Alisha-Steele.pdf
    • http://muicuiu.dumb1.com/8a03a08a08a00a06/Bet-On-Me-Bedroom-Games-3-by-Alisha-Rai.pdf
    • http://muicuiu.dumb1.com/4a08a07a01a08a09/Wrong-to-Need-You-Forbidden-Hearts-2-by-Alisha-Rai.pdf
    • http://muicuiu.dumb1.com/4a09a06a04a04/The-Purnell-House-by-Alisha-Lolk.pdf

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