Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fb5276fe34ae9a9…

MALICIOUS

PDF

28.7 KB Authoring application: pstoedit
MD5: b192e62c45b6f3913ddad973b1cb2f57 SHA-1: cb9ffc3b93c23d1e3e6f42dbed886aac760ac9c6 SHA-256: 4fb5276fe34ae9a96156a9ea9a7e8ce2b7cad6f9156fd5e239e58ad8beeda684
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains multiple embedded URLs pointing to other PDF files and an HTML file, suggesting a phishing or redirection attempt. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The document body, while containing seemingly unrelated text, also includes some of the URLs, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jgamble.com/uploads/1/3/0/5/130541574/rikonatanekol.pdf
    • http://nwcamper.com/uploads/1/3/0/7/130739016/4907976.pdf
    • http://thesaltcollective.net/uploads/1/3/0/5/130550794/guxepitag.pdf
    • http://mylkshoppe.com/uploads/1/3/0/3/130313241/gusozusov_xejodekoro_vebexupujoxukij.pdf
    • http://misssoutheastpageantry.us/uploads/1/3/0/6/130621845/130621845.html#ninja+aadat+punjabi+song

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000fd4.bin
ee9514218933ce01844b1895bb1d62fdf997cf813a89c31ccfa33d282a235c3b
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD4 7608 bytes