Malicious PDF — malware analysis report

Static analysis result for SHA-256 51425e9185481d83…

MALICIOUS

PDF

41.7 KB Authoring application: Nitro PDF
MD5: 367bcd564a1d7c0bc1456cdc38b3184c SHA-1: 1efcda29c3874ffce2a5f57f8c18e4c0df1294ab SHA-256: 51425e9185481d838086bda0823c2fe67c9e1ee969038e47120b1dfcfc225fe6
92 Risk Score

Malware Insights

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

The file is a PDF document that contains embedded links. The document body text, which mentions 'Chinese checkers game online 2 players', serves as a lure to encourage users to click on these links. The embedded URLs point to other PDF files, suggesting a multi-stage download or redirection to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://camidogtraining.com/uploads/1/3/0/3/130379074/gabajaw.pdf
    • http://californiaspac.com/uploads/1/3/0/5/130588290/2281f.pdf
    • http://nathaniel-gaynor.com/uploads/1/3/0/6/130639123/goxelijo_wakukovi.pdf
    • http://momentumwomenscenter.com/uploads/1/3/0/4/130491166/130491166.html#chinese+checkers+game+online+2+players

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001029.bin
2bdd43c8ee54c97c459e90f64d4591925e7f770ec573efee3e34952b76adb3d7
pdf-font-stream PDF embedded font (sfnt) at offset 0x1029 8976 bytes