Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d46a266e1bb338a…

MALICIOUS

PDF

34.7 KB Authoring application: Pdftk
MD5: c4e5966ff4eec3975a3602690e505550 SHA-1: fb1e109a53c1ff4b3c1640666f8ddac835849cb7 SHA-256: 2d46a266e1bb338affbb3fc1d42278c7a799bf245bd88bb28c3e8ce67553522c
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to external PDF documents, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. The embedded URLs are the primary indicators of compromise, suggesting a link farm or redirection strategy.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://brewhousemarketandwine.com/uploads/1/3/0/6/130605405/e171a5075c.pdf
    • http://www.hinterlandtreeservicesbyronbay.com/uploads/1/3/0/2/130271184/dikuketozilin-ronuvubabe-bokipojexala-nomapigilejel.pdf
    • http://www.compasscoonrapids.com/uploads/1/3/0/2/130289655/luzujodaxukenu.pdf
    • http://toritenacity.com/uploads/1/3/0/3/130379426/9751871.pdf
    • http://b2bisolate.com/uploads/1/3/0/5/130588499/perox.pdf
    • http://visualtrad.com/uploads/1/3/0/8/130874570/sopapapipuxumoso.pdf
    • http://myangelabartlett.com/uploads/1/3/0/6/130605289/2deb8e2a.pdf
    • http://kosherservices4u.com/uploads/1/3/0/2/130289375/7722396.pdf
    • http://smartpromoting.com/uploads/1/3/0/7/130776745/2934965.pdf
    • http://tomwenfashiondesign.com/uploads/1/3/0/7/130739952/lulewigolovase.pdf
    • http://ladecourtcars.com/uploads/1/3/0/3/130379074/6680b0181f5fbc7.pdf
    • http://corvedo.com/uploads/1/3/0/9/130970005/130970005.html#1500+calorie+vegan+meal+plan

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000313e.bin
23192f476b2183fe36a0b647d7d86f82687851e4e5e74a233a4eca1149c960f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x313E 7644 bytes

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