Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb68b47cf3b35cdd…

MALICIOUS

PDF

61.0 KB Authoring application: Soda PDF
MD5: 355e2f2fa13085e3b69851fdbc228fd1 SHA-1: 258b446d7b010c1970cbf6dcd180331cd289d9db SHA-256: eb68b47cf3b35cdd181d1068d277095d4967ca410758f79b9e2ed7e60bb9a225
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm designed to direct users to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. ClamAV also detected this as Pdf.Phishing.TtraffRobotInstall-7605656-0. The embedded URLs suggest a phishing or malicious content distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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 https://kepijikurogimol.weebly.com/uploads/1/3/0/3/130313619/jomosabiruruz_vuvajaz_xamanuvow.pdf
    • http://mnalifestyleconnections.com/uploads/1/3/0/4/130436242/204742.pdf
    • http://mohairregrowthsystem.com/uploads/1/3/0/3/130323455/8316517.pdf
    • http://nabhbabbar.com/uploads/1/3/0/4/130483875/130483875.html#asbabun+nuzul+quran+pdf+urdu

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012af.bin
2af692a1434d6c504f9a32d4dcc3fd9bd2055042fcb8eb620eb3aa2c769f26ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12AF 9144 bytes
font_01_sfnt_off0000a586.bin
874dc73ec5f3b40b5f055254e9f7af2ae8e04b3879975c62d366acb2e1d034e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA586 17240 bytes

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