Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbdc7d1d91d0deda…

MALICIOUS

PDF

2.7 KB Created: 6059-01-01 Authoring application: 9525
MD5: c2c70fb6086abf5dac107354f7ae5ab6 SHA-1: 35e8ece39448b09329e0ae638f5c5addfc65f119 SHA-256: dbdc7d1d91d0deda3ac4c4e8ec9ef8debb62f8e2dd81d47bd59b5f0a506971c0
96 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. The ClamAV detection 'Pdf.Exploit.Agent-36014' strongly suggests a known PDF exploit. The embedded JavaScript file 'javascript_obj0013_001.js' was flagged for hex escape obfuscation and script obfuscation indicators, pointing towards its role in delivering a malicious payload. The exact nature of the payload is not discernible from the provided evidence, but the overall pattern suggests an exploit delivery mechanism.

Heuristics 4

  • ClamAV: Pdf.Exploit.Agent-36014 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36014
  • Suspicious extracted artifact medium EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0013_001.js
5715c914455ac3a4007eb8efaf94b799e1a4f3f83e65152d21ec53103862d3dc
pdf-javascript-stream PDF /JS object 13 at offset 0x328 4787 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 10 eval/decoder/string-building token(s). Carved artifact contains 3 long hex-escaped blob(s).