Malicious PDF — malware analysis report

Static analysis result for SHA-256 be49d67f7de8f114…

MALICIOUS

PDF

27.2 KB Authoring application: PDF Studio
MD5: fd2af24331d18400143f3c7785e827f4 SHA-1: 3f0020026ffb858c40b220e2a08938bd81cbce0f SHA-256: be49d67f7de8f1146ab6437a00f5060e248dd6ad948551825cd27ffda984c56d
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious content. The PDF_SEO_LINK_FARM heuristic specifically points to a large number of external links, with the primary domain being anitaleverarttherapist.com. These links likely serve to redirect users to malicious websites or for SEO poisoning. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://anitaleverarttherapist.com/uploads/1/3/0/6/130605440/eb564e468.pdf
    • http://ferenbach.com/uploads/1/3/0/6/130639859/4277353.pdf
    • http://newagevalue.com/uploads/1/3/0/6/130604944/5092451.pdf
    • http://wellosophy.com/uploads/1/3/0/6/130621200/130621200.html#cartoon+photo+hd

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000f01.bin
74a8b3302d3323c02b91698b6c9568200d036a821c595604ed0621f951843ac1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF01 7484 bytes

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