Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3b0ccc028ef893c…

MALICIOUS

PDF

36.9 KB Authoring application: Scribus First seen: 2020-09-24
MD5: f39a98413cdd50e38923e96685cc716c SHA-1: 70510be0cf52d85e9cbae21641570d91daff5a05 SHA-256: b3b0ccc028ef893c6bee2a32e20510fd7a9a96aea2e507f015d7c9565aa345e5
102 Risk Score

Malware Insights

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

The file is a PDF document that uses a lure of 'report writing example for students' to entice users. It contains multiple embedded URLs that point to external PDF files, suggesting a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://brownmediadesigns.com/uploads/1/3/0/4/130483256/2044915b411fe9.pdf PDF link annotation
    • http://coyraid67.com/uploads/1/3/0/6/130621378/zatinu.pdfIn PDF document text
    • http://whcyoga.com/uploads/1/3/0/4/130476736/voruleziw.pdfIn PDF document text
    • http://riversidecountyhistory.org/uploads/1/3/0/4/130483939/130483939.html#report+writing+example+for+students+pdf+downloadIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000fef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEF 8472 bytes
SHA-256: fd7b0d677ffe8b4a4ea896975920dc5b95dbc41154a6128382b8ee69d99a367e