Malicious PDF — malware analysis report

Static analysis result for SHA-256 d31356087146ea0c…

MALICIOUS

PDF

36.2 KB Authoring application: GIMP
MD5: b1177b62f2874259cf246c5435205f60 SHA-1: 952b051b0d97c00242420811dc99a41791775736 SHA-256: d31356087146ea0cdab9ce115e633ee0dd75ecb8f2e978c092b9dd9a8e23aaa5
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The file is a PDF document that contains embedded URLs pointing to other PDF files and an HTML file. The document body, though heavily obfuscated, contains text related to exporting Outlook PST files, suggesting a social engineering lure. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent, likely phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://mtmsmusic.com/uploads/1/3/0/5/130550684/7429031.pdf
    • http://e-videomail.com/uploads/1/3/0/5/130588594/lanujinumeli_roxeloloso.pdf
    • http://adrianbyrdcounseling.com/uploads/1/3/0/2/130274263/1a587c0f.pdf
    • http://advance-it.net/uploads/1/3/0/5/130589207/130589207.html#export+pst+file+in+outlook+2016

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000fa3.bin
be1e7234c5a5689efa08954153341baadc681d3c1762d04ac746094eb2d72c2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA3 7908 bytes

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