Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d2e243d70e51543…

MALICIOUS

PDF

47.4 KB Authoring application: Mobipocket Creator
MD5: ef5fa7738e9fdb6a6acd851583e873b5 SHA-1: c11b13207bf1d4d9ac3ab0180f95e5f5a68f4b5e SHA-256: 7d2e243d70e51543057c2b54d1cb076ffd02e959c6e13241c687775b67b2b49c
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected by ClamAV as Pdf.Phishing.TtraffRobotInstall-7605656-0 and flagged by an ML classifier as malicious. It contains multiple embedded URLs pointing to PDF and HTML files, suggesting it's part of a phishing or malware distribution chain. The document body, though truncated and obfuscated, contains references to a 'manual practico de medicina estetica pdf' and includes several URLs, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://kusatori.info/uploads/2020/01/29/bezoranob.pdf
    • http://miraprintservices.com/uploads/1/3/0/5/130551083/nojuz.pdf
    • http://byblair.co/uploads/1/3/0/7/130739202/6859456.pdf
    • http://solemateshoerepair.com/uploads/1/3/0/2/130289523/nejivuzorigeb_nomufofojev_biwotodapax_gukefu.pdf
    • http://mrmacbiblebook2.com/uploads/1/3/0/5/130545360/130545360.html#manual+practico+de+medicina+estetica+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010d3.bin
f93cbb0c4188814bc6aa1dc498d05f630577ba0e66ee042b14f683a26968973b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D3 9700 bytes

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