Malicious PDF — malware analysis report

Static analysis result for SHA-256 c47e0912391c1b6a…

MALICIOUS

PDF

10.2 KB Authoring application: null
MD5: 5cb38e7ae07a5f081b740bb1e25cd0ca SHA-1: 1ec657f52bf1811af14d7da549cb6add70c778f0 SHA-256: c47e0912391c1b6aa725c9e72ece4e6c8c4f6e64241f6c047540e1c83b954a07
84 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains embedded JavaScript and uses ASCII85Decode filters, indicating a potential for malicious code execution. The document body mimics a PGP sales confirmation, which is a common social engineering tactic to trick users into interacting with malicious links. The embedded JavaScript likely facilitates the download and execution of a second-stage payload from one of the URLs. Although the URLs themselves are marked as benign, the overall structure and heuristic firings strongly suggest a dropper functionality.

Heuristics 5

  • ClamAV: Pdf.Dropper.Agent-7300714-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7300714-0
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85
    ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation
  • 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 https://customers.pgp.com/download/lookup?oid=1248198-0f2b1e4cb5db36f055803cb40f5735fe
    • https://support.pgp.com