Malicious PDF — malware analysis report

Static analysis result for SHA-256 5db8619af56ee1d5…

MALICIOUS

PDF

17.0 KB Created: 2019-04-30 04:34:58 +01:00 Authoring application: mPDF 5.7
MD5: 713f666bbedebc4ea8b17d28e7d6a8cb SHA-1: 0c6e91825f6de2394873d9c1eb8fc3de0a8e02ad SHA-256: 5db8619af56ee1d551c51d1cc29596a2e426d358f66d4d49f788f7b2dd055c75
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a 'PDF_SEO_LINK_FARM' heuristic, suggesting a tactic to distribute malicious content or redirect users to phishing sites. ClamAV also detected this file as 'Pdf.Dropper.Agent-7205634-0', reinforcing its malicious nature. The presence of a 'download button' heuristic further supports the lure-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

Heuristics 4

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7205634-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7205634-0
  • 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/8a02a07a01a09/Better-Date-than-Never-Boxed-Set-Vol-1-Books-1-3-Better-Date-than-Never-1-3-by-Susan-Hatler.pdf
    • http://muicuiu.dumb1.com/4a01a02a05a09a07/Better-Date-than-Never-Boxed-Set-Books-1-6-Better-Date-than-Never-1-6-by-Susan-Hatler.pdf
    • http://muicuiu.dumb1.com/4a05a08a01a08a03/Truth-or-Date-Better-Date-than-Never-2-by-Susan-Hatler.pdf
    • http://muicuiu.dumb1.com/3a06a07a04a05a03/Truth-or-Date-Better-Date-than-Never-2-by-Susan-Hatler.pdf
    • http://muicuiu.dumb1.com/3a09a07a00a08a02/My-Last-Blind-Date-Better-Date-Than-Never-3-by-Susan-Hatler.pdf
    • http://muicuiu.dumb1.com/3a06a05a08a09a02/Save-the-Date-Better-Date-than-Never-4-by-Susan-Hatler.pdf
    • http://muicuiu.dumb1.com/4a04a03a05a05a05/An-Unexpected-Date-by-Susan-Hatler.pdf
    • http://muicuiu.dumb1.com/7a01a02a04a04a05/The-Birth-Date-Book-April-1-What-Your-Birth-Date-Reveals-about-You-by-Ariel-Books.pdf
    • http://muicuiu.dumb1.com/3a05a01a00a00a00/Pearl-Harbor-Date-of-Infamy-Date-to-Remember-by-Jon-J-Cardwell.pdf
    • http://muicuiu.dumb1.com/7a01a02a04a04a00/April-10-What-Your-Birth-Date-Reveals-about-You-by-Ariel-Books.pdf
    • http://muicuiu.dumb1.com/7a01a02a04a02a05/April-30-What-Your-Birth-Date-Reveals-about-You-by-Ariel-Books.pdf
    • http://muicuiu.dumb1.com/7a01a02a04a03a08/April-19-What-Your-Birth-Date-Reveals-about-You-by-Ariel-Books.pdf
    • http://muicuiu.dumb1.com/7a01a02a04a04a06/April-20-What-Your-Birth-Date-Reveals-about-You-by-Ariel-Books.pdf
    • http://muicuiu.dumb1.com/7a01a02a04a04a02/The-Birth-Date-Book-April-24-What-Your-Birthday-Reveals-about-You-by-Ariel-Books.pdf
    • http://muicuiu.dumb1.com/7a01a02a04a04a03/The-Birth-Date-Book-April-2-What-Your-Birthday-Reveals-about-You-by-Ariel-Books.pdf
    • http://muicuiu.dumb1.com/8a05a09a07a02a07/La-sym-trie-cach-e-de-votre-date-de-naissance-La-date-de-votre-naissance-r-v-le-le-plan-de-votre-vie-by-Jean-Haner.pdf
    • http://muicuiu.dumb1.com/1a07a01a05a03a02/Blind-Date-Blind-Date-1-by-Violette-Paradis.pdf
    • http://muicuiu.dumb1.com/3a08a05a08a07a04/First-Date-by-Krista-McGee.pdf
    • http://muicuiu.dumb1.com/3a04a08a09a02a06/Serial-Date-by-D-V-Berkom.pdf
    • http://muicuiu.dumb1.com/2a01a01a07a01a08/Date-Night-by-R-C-Matthews.pdf