Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2ae362d35939e99…

MALICIOUS

PDF

32.5 KB Authoring application: Solid Converter PDF
MD5: ef33e7ac12fc2651f3bddc87d5ff5c1a SHA-1: 5bb32648ff959fe098f192a5d4fdfabd699fd719 SHA-256: b2ae362d35939e991fd946418ab40880c2c36c81d2a831427c3e0b1c5a61ea47
92 Risk Score

Malware Insights

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

The file is a PDF containing multiple embedded URLs, identified by the PDF_URI heuristic. The ClamAV detection and ML classifier strongly indicate maliciousness, specifically related to phishing. The document body, though truncated, contains text related to medical conditions, likely a lure to disguise the malicious intent of the embedded links. The primary attack pattern involves directing the user to download further malicious content via these URLs.

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://disruptioneer.com/uploads/1/3/0/5/130588923/vudodof.pdf
    • http://vosalepuve.tashermer.xyz/uploads/2020/01/29/2617128.pdf
    • http://oedipa-maas.com/uploads/1/3/0/5/130550809/1440b60a0.pdf
    • http://nicolitulk.com.au/uploads/1/3/0/2/130289524/130289524.html#pleural+effusion+exudate+transudate

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000fb4.bin
6dfca147222fbc4cd322a5b7816df2ce80b71e8c6a2bb6ccb0ee036339d1564a
pdf-font-stream PDF embedded font (sfnt) at offset 0xFB4 8216 bytes